./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl_p.i --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_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/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_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/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_11fdfee8-e98b-4527-abed-7dffd53a0fab/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 822210afb67ed99ceea45b432aca8ec250ff4c38d2893c644887ddfbc667fadf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:34:43,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:34:43,218 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:34:43,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:34:43,230 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:34:43,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:34:43,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:34:43,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:34:43,278 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:34:43,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:34:43,283 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:34:43,284 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:34:43,285 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:34:43,287 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:34:43,287 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:34:43,288 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:34:43,288 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:34:43,289 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:34:43,289 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:34:43,289 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:34:43,290 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:34:43,291 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:34:43,291 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:34:43,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:34:43,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:34:43,293 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:34:43,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:34:43,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:34:43,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:34:43,295 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:34:43,296 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:34:43,297 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:34:43,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:34:43,297 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:34:43,297 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:34:43,298 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:34:43,298 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:34:43,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:34:43,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:34:43,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:43,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:34:43,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:34:43,300 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:34:43,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:34:43,300 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:34:43,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:34:43,301 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_11fdfee8-e98b-4527-abed-7dffd53a0fab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 822210afb67ed99ceea45b432aca8ec250ff4c38d2893c644887ddfbc667fadf [2023-11-06 20:34:43,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:34:43,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:34:43,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:34:43,675 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:34:43,677 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:34:43,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl_p.i [2023-11-06 20:34:46,825 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:34:47,320 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:34:47,321 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl_p.i [2023-11-06 20:34:47,360 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/data/cbaf1f40b/ec11b87361d54f159c8a1765a52139e9/FLAG17592b6e1 [2023-11-06 20:34:47,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/data/cbaf1f40b/ec11b87361d54f159c8a1765a52139e9 [2023-11-06 20:34:47,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:34:47,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:34:47,392 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:47,393 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:34:47,398 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:34:47,399 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:47" (1/1) ... [2023-11-06 20:34:47,400 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a516a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:47, skipping insertion in model container [2023-11-06 20:34:47,401 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:47" (1/1) ... [2023-11-06 20:34:47,518 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:49,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:49,260 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 20:34:49,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1e2f0806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:49, skipping insertion in model container [2023-11-06 20:34:49,261 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:49,262 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:34:49,265 INFO L158 Benchmark]: Toolchain (without parser) took 1876.41ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 74.8MB in the beginning and 106.7MB in the end (delta: -31.9MB). Peak memory consumption was 38.6MB. Max. memory is 16.1GB. [2023-11-06 20:34:49,266 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 123.7MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:34:49,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1869.61ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 74.4MB in the beginning and 106.7MB in the end (delta: -32.4MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2023-11-06 20:34:49,270 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 123.7MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1869.61ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 74.4MB in the beginning and 106.7MB in the end (delta: -32.4MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2978]: 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_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/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_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl_p.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/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_11fdfee8-e98b-4527-abed-7dffd53a0fab/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 822210afb67ed99ceea45b432aca8ec250ff4c38d2893c644887ddfbc667fadf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:34:51,823 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:34:51,958 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:34:51,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:34:51,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:34:52,025 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:34:52,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:34:52,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:34:52,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:34:52,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:34:52,033 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:34:52,034 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:34:52,034 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:34:52,036 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:34:52,036 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:34:52,037 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:34:52,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:34:52,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:34:52,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:34:52,040 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:34:52,041 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:34:52,041 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:34:52,042 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:34:52,042 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:34:52,043 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:34:52,043 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:34:52,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:34:52,044 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:34:52,045 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:34:52,045 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:34:52,047 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:34:52,047 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:34:52,047 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:34:52,048 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:34:52,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:34:52,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:34:52,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:52,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:34:52,051 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:34:52,051 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:34:52,051 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:34:52,052 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:34:52,052 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:34:52,052 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_11fdfee8-e98b-4527-abed-7dffd53a0fab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 822210afb67ed99ceea45b432aca8ec250ff4c38d2893c644887ddfbc667fadf [2023-11-06 20:34:52,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:34:52,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:34:52,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:34:52,534 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:34:52,534 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:34:52,536 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl_p.i [2023-11-06 20:34:55,912 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:34:56,461 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:34:56,462 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inl_p.i [2023-11-06 20:34:56,503 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/data/1d23eedc0/55575c9409bb4527ac2d993714956de1/FLAG1e55fb72c [2023-11-06 20:34:56,525 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/data/1d23eedc0/55575c9409bb4527ac2d993714956de1 [2023-11-06 20:34:56,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:34:56,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:34:56,536 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:56,536 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:34:56,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:34:56,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:56" (1/1) ... [2023-11-06 20:34:56,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c9c78a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:56, skipping insertion in model container [2023-11-06 20:34:56,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:34:56" (1/1) ... [2023-11-06 20:34:56,648 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:58,384 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:58,421 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:34:58,447 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:34:58,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:58,743 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:34:58,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:34:59,189 WARN L672 CHandler]: The function __VERIFIER_nondet_sector_t is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:34:59,197 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:34:59,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59 WrapperNode [2023-11-06 20:34:59,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:34:59,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:34:59,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:34:59,200 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:34:59,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (1/1) ... [2023-11-06 20:34:59,282 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (1/1) ... [2023-11-06 20:34:59,373 INFO L138 Inliner]: procedures = 482, calls = 840, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 985 [2023-11-06 20:34:59,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:34:59,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:34:59,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:34:59,377 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:34:59,386 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (1/1) ... [2023-11-06 20:34:59,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (1/1) ... [2023-11-06 20:34:59,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (1/1) ... [2023-11-06 20:34:59,405 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (1/1) ... [2023-11-06 20:34:59,477 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (1/1) ... [2023-11-06 20:34:59,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (1/1) ... [2023-11-06 20:34:59,523 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (1/1) ... [2023-11-06 20:34:59,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (1/1) ... [2023-11-06 20:34:59,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:34:59,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:34:59,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:34:59,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:34:59,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (1/1) ... [2023-11-06 20:34:59,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:34:59,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:34:59,607 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:34:59,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:34:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2023-11-06 20:34:59,649 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2023-11-06 20:34:59,649 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-06 20:34:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2023-11-06 20:34:59,650 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 20:34:59,650 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2023-11-06 20:34:59,651 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 20:34:59,651 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 20:34:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:34:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-06 20:34:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:34:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 20:34:59,655 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-06 20:34:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-06 20:34:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 20:34:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2023-11-06 20:34:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2023-11-06 20:34:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2023-11-06 20:34:59,656 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-06 20:34:59,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2023-11-06 20:34:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:34:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2023-11-06 20:34:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2023-11-06 20:34:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:34:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:34:59,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 20:34:59,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-06 20:34:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2023-11-06 20:34:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2023-11-06 20:34:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2023-11-06 20:34:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2023-11-06 20:34:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:34:59,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:34:59,658 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2023-11-06 20:34:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2023-11-06 20:34:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-06 20:34:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:34:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-06 20:34:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 20:34:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 20:34:59,659 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 20:34:59,659 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-11-06 20:34:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-11-06 20:34:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:34:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 20:34:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-06 20:34:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-06 20:34:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 20:34:59,660 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-11-06 20:34:59,660 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-11-06 20:34:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 20:34:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-06 20:34:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:34:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 20:34:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 20:34:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 20:34:59,661 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-06 20:34:59,661 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-06 20:34:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-06 20:34:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-06 20:34:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-11-06 20:34:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-11-06 20:34:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2023-11-06 20:34:59,662 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2023-11-06 20:34:59,662 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2023-11-06 20:34:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2023-11-06 20:34:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-06 20:34:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2023-11-06 20:34:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2023-11-06 20:34:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2023-11-06 20:34:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-06 20:34:59,663 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2023-11-06 20:34:59,663 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2023-11-06 20:34:59,664 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-06 20:34:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-06 20:34:59,664 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2023-11-06 20:34:59,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2023-11-06 20:35:00,117 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:35:00,121 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:35:06,351 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:35:06,369 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:35:06,370 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 20:35:06,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:35:06 BoogieIcfgContainer [2023-11-06 20:35:06,374 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:35:06,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:35:06,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:35:06,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:35:06,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:34:56" (1/3) ... [2023-11-06 20:35:06,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70da506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:35:06, skipping insertion in model container [2023-11-06 20:35:06,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:34:59" (2/3) ... [2023-11-06 20:35:06,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70da506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:35:06, skipping insertion in model container [2023-11-06 20:35:06,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:35:06" (3/3) ... [2023-11-06 20:35:06,388 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inl_p.i [2023-11-06 20:35:06,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:35:06,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2023-11-06 20:35:06,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:35:06,499 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@468afd23, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:35:06,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2023-11-06 20:35:06,511 INFO L276 IsEmpty]: Start isEmpty. Operand has 665 states, 355 states have (on average 1.819718309859155) internal successors, (646), 566 states have internal predecessors, (646), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-11-06 20:35:06,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 20:35:06,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:35:06,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 20:35:06,521 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-06 20:35:06,530 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:35:06,530 INFO L85 PathProgramCache]: Analyzing trace with hash 328182463, now seen corresponding path program 1 times [2023-11-06 20:35:06,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:35:06,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [700887850] [2023-11-06 20:35:06,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:35:06,553 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 [2023-11-06 20:35:06,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:35:06,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/mathsat -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) [2023-11-06 20:35:06,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/mathsat -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 [2023-11-06 20:35:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:35:07,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 20:35:07,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:35:07,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:35:07,272 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:35:07,273 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:35:07,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [700887850] [2023-11-06 20:35:07,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [700887850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:35:07,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:35:07,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 20:35:07,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281068845] [2023-11-06 20:35:07,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:35:07,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 20:35:07,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:35:07,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 20:35:07,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:35:07,317 INFO L87 Difference]: Start difference. First operand has 665 states, 355 states have (on average 1.819718309859155) internal successors, (646), 566 states have internal predecessors, (646), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:35:09,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 20:35:11,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 20:35:14,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:35:14,950 INFO L93 Difference]: Finished difference Result 1202 states and 1439 transitions. [2023-11-06 20:35:14,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 20:35:14,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 20:35:14,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:35:14,996 INFO L225 Difference]: With dead ends: 1202 [2023-11-06 20:35:14,996 INFO L226 Difference]: Without dead ends: 1198 [2023-11-06 20:35:14,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-06 20:35:15,003 INFO L413 NwaCegarLoop]: 673 mSDtfsCounter, 685 mSDsluCounter, 1559 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 1104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-11-06 20:35:15,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 2232 Invalid, 1104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1098 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2023-11-06 20:35:15,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2023-11-06 20:35:15,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 985. [2023-11-06 20:35:15,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 592 states have (on average 1.802364864864865) internal successors, (1067), 814 states have internal predecessors, (1067), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2023-11-06 20:35:15,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1343 transitions. [2023-11-06 20:35:15,150 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1343 transitions. Word has length 5 [2023-11-06 20:35:15,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:35:15,151 INFO L495 AbstractCegarLoop]: Abstraction has 985 states and 1343 transitions. [2023-11-06 20:35:15,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:35:15,151 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1343 transitions. [2023-11-06 20:35:15,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 20:35:15,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:35:15,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 20:35:15,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 20:35:15,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:35:15,368 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2023-11-06 20:35:15,368 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:35:15,369 INFO L85 PathProgramCache]: Analyzing trace with hash 328182464, now seen corresponding path program 1 times [2023-11-06 20:35:15,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:35:15,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075999924] [2023-11-06 20:35:15,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:35:15,370 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 [2023-11-06 20:35:15,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:35:15,372 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/mathsat -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) [2023-11-06 20:35:15,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11fdfee8-e98b-4527-abed-7dffd53a0fab/bin/utaipan-verify-FOvIYxoinp/mathsat -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 [2023-11-06 20:35:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:35:15,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 20:35:15,910 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:35:16,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:35:16,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:35:16,019 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:35:16,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075999924] [2023-11-06 20:35:16,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075999924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:35:16,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:35:16,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 20:35:16,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664608905] [2023-11-06 20:35:16,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:35:16,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 20:35:16,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:35:16,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 20:35:16,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 20:35:16,023 INFO L87 Difference]: Start difference. First operand 985 states and 1343 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)