./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 30e01a73 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_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:16,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:16,821 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-23 21:27:16,825 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:16,826 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:16,847 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:16,851 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:16,852 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:16,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:16,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:16,855 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:16,856 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:16,857 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:16,857 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:27:16,858 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:16,858 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:16,859 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:27:16,859 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:27:16,860 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:16,860 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:27:16,861 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:27:16,866 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:27:16,867 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:27:16,867 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:27:16,868 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:16,869 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:27:16,869 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:27:16,869 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:27:16,870 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:16,870 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:27:16,871 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:27:16,872 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 21:27:16,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:16,872 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:27:16,872 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:27:16,873 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:27:16,873 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:16,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:16,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:16,874 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:16,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:16,875 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:16,875 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:16,875 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:27:16,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:27:16,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:16,876 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:16,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:16,877 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_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 [2023-11-23 21:27:17,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:17,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:17,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:17,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:17,252 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:17,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2023-11-23 21:27:20,487 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:20,875 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:20,883 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2023-11-23 21:27:20,900 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/data/88eba2487/2c63c7dddafe46c28622be78d37c4ca7/FLAG955eade46 [2023-11-23 21:27:20,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/data/88eba2487/2c63c7dddafe46c28622be78d37c4ca7 [2023-11-23 21:27:20,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:20,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:20,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:20,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:20,937 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:20,938 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:20" (1/1) ... [2023-11-23 21:27:20,940 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f84989d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:20, skipping insertion in model container [2023-11-23 21:27:20,940 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:20" (1/1) ... [2023-11-23 21:27:21,007 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:21,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:21,347 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) [2023-11-23 21:27:21,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6ff3fc53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:21, skipping insertion in model container [2023-11-23 21:27:21,348 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:21,349 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-23 21:27:21,351 INFO L158 Benchmark]: Toolchain (without parser) took 421.14ms. Allocated memory is still 138.4MB. Free memory was 104.7MB in the beginning and 90.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:27:21,352 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 138.4MB. Free memory is still 108.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:27:21,353 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.19ms. Allocated memory is still 138.4MB. Free memory was 104.3MB in the beginning and 90.4MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:27:21,355 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 138.4MB. Free memory is still 108.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.19ms. Allocated memory is still 138.4MB. Free memory was 104.3MB in the beginning and 90.4MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 244]: 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_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:27:24,152 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:27:24,235 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-23 21:27:24,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:27:24,243 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:27:24,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:27:24,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:27:24,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:27:24,308 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:27:24,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:27:24,315 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:27:24,316 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:27:24,316 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:27:24,318 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:27:24,319 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:27:24,320 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:27:24,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:27:24,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:27:24,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:27:24,323 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:27:24,324 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:27:24,325 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:27:24,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:27:24,326 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-23 21:27:24,327 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-23 21:27:24,327 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-23 21:27:24,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:27:24,328 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:27:24,329 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:27:24,329 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:27:24,331 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:27:24,332 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:27:24,332 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:27:24,332 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:27:24,333 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:27:24,333 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:27:24,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:27:24,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:24,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:27:24,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:27:24,336 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:27:24,337 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:27:24,337 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:27:24,337 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:27:24,338 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:27:24,339 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_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 [2023-11-23 21:27:24,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:27:24,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:27:24,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:27:24,816 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:27:24,817 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:27:24,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2023-11-23 21:27:28,144 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:27:28,491 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:27:28,492 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2023-11-23 21:27:28,506 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/data/d7872151e/072d0ec5b6674d658c3e73380ca163ce/FLAGd737eb928 [2023-11-23 21:27:28,524 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/data/d7872151e/072d0ec5b6674d658c3e73380ca163ce [2023-11-23 21:27:28,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:27:28,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:27:28,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:28,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:27:28,537 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:27:28,538 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:28" (1/1) ... [2023-11-23 21:27:28,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7811730a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:28, skipping insertion in model container [2023-11-23 21:27:28,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:27:28" (1/1) ... [2023-11-23 21:27:28,586 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:29,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:29,090 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-23 21:27:29,105 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:27:29,214 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:29,220 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:27:29,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:27:29,375 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:27:29,376 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:27:29,386 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:27:29,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29 WrapperNode [2023-11-23 21:27:29,387 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:27:29,388 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:29,389 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:27:29,389 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:27:29,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (1/1) ... [2023-11-23 21:27:29,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (1/1) ... [2023-11-23 21:27:29,551 INFO L138 Inliner]: procedures = 27, calls = 308, calls flagged for inlining = 70, calls inlined = 98, statements flattened = 1541 [2023-11-23 21:27:29,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:27:29,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:27:29,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:27:29,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:27:29,566 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (1/1) ... [2023-11-23 21:27:29,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (1/1) ... [2023-11-23 21:27:29,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (1/1) ... [2023-11-23 21:27:29,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (1/1) ... [2023-11-23 21:27:29,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (1/1) ... [2023-11-23 21:27:29,747 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (1/1) ... [2023-11-23 21:27:29,767 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (1/1) ... [2023-11-23 21:27:29,775 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (1/1) ... [2023-11-23 21:27:29,789 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:27:29,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:27:29,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:27:29,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:27:29,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (1/1) ... [2023-11-23 21:27:29,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:27:29,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:27:29,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:27:29,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:27:29,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:27:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:27:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:27:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 21:27:29,915 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-23 21:27:29,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-23 21:27:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-23 21:27:29,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-23 21:27:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-23 21:27:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-23 21:27:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:27:29,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:27:29,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:27:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:27:29,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 21:27:29,925 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:27:30,235 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:27:30,238 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:27:34,625 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:27:46,147 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:27:46,148 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-23 21:27:46,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:46 BoogieIcfgContainer [2023-11-23 21:27:46,148 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:27:46,151 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:27:46,152 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:27:46,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:27:46,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:27:28" (1/3) ... [2023-11-23 21:27:46,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b53a182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:46, skipping insertion in model container [2023-11-23 21:27:46,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:27:29" (2/3) ... [2023-11-23 21:27:46,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b53a182 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:27:46, skipping insertion in model container [2023-11-23 21:27:46,157 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:27:46" (3/3) ... [2023-11-23 21:27:46,158 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2023-11-23 21:27:46,302 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:27:46,303 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 378 error locations. [2023-11-23 21:27:46,303 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:27:48,369 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 21:27:48,411 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 464 places, 485 transitions, 984 flow [2023-11-23 21:27:53,694 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 202042 states, 107328 states have (on average 5.423934108527132) internal successors, (582140), 202041 states have internal predecessors, (582140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:27:53,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:27:53,759 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;@59833288, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:27:53,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 732 error locations. [2023-11-23 21:27:54,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 202042 states, 107328 states have (on average 5.423934108527132) internal successors, (582140), 202041 states have internal predecessors, (582140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:27:54,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-23 21:27:54,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:27:54,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-23 21:27:54,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 729 more)] === [2023-11-23 21:27:54,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:27:54,033 INFO L85 PathProgramCache]: Analyzing trace with hash 7551673, now seen corresponding path program 1 times [2023-11-23 21:27:54,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:27:54,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1534030852] [2023-11-23 21:27:54,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:27:54,051 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 [2023-11-23 21:27:54,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:27:54,058 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:27:54,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c88638c0-9659-4ee9-b07f-9d2ad591025e/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:27:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:27:55,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:27:55,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:27:55,779 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2023-11-23 21:27:55,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:27:55,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-23 21:27:55,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:27:55,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-23 21:27:55,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:27:55,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-23 21:27:55,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:27:55,875 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2023-11-23 21:27:55,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 21:27:55,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2023-11-23 21:27:55,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:27:55,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:27:55,894 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:27:55,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1534030852] [2023-11-23 21:27:55,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1534030852] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:27:55,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:27:55,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-23 21:27:55,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195101363] [2023-11-23 21:27:55,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:27:55,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:27:55,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:27:55,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:27:55,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:27:56,134 INFO L87 Difference]: Start difference. First operand has 202042 states, 107328 states have (on average 5.423934108527132) internal successors, (582140), 202041 states have internal predecessors, (582140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:28:01,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:28:01,387 INFO L93 Difference]: Finished difference Result 68472 states and 198934 transitions. [2023-11-23 21:28:01,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:28:01,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-23 21:28:01,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:28:02,052 INFO L225 Difference]: With dead ends: 68472 [2023-11-23 21:28:02,052 INFO L226 Difference]: Without dead ends: 68472 [2023-11-23 21:28:02,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:02,058 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 23 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-23 21:28:02,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 28 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-23 21:28:02,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68472 states.