./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/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_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/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_e23d57f9-1625-4226-91db-8897726f4b49/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 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:03:42,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:03:43,070 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 21:03:43,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:03:43,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:03:43,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:03:43,124 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:03:43,125 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:03:43,126 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:03:43,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:03:43,132 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:03:43,133 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:03:43,134 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:03:43,136 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 21:03:43,136 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:03:43,137 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:03:43,137 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 21:03:43,138 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 21:03:43,138 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:03:43,139 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 21:03:43,139 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 21:03:43,140 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 21:03:43,141 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:03:43,141 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:03:43,142 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:03:43,142 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:03:43,143 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:03:43,143 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:03:43,144 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:03:43,144 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:03:43,145 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:03:43,146 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:03:43,146 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:03:43,146 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:03:43,147 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:03:43,147 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:03:43,147 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:03:43,147 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:03:43,148 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:03:43,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:03:43,148 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:03:43,149 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:03:43,149 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 21:03:43,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:03:43,150 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:03:43,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:03:43,150 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_e23d57f9-1625-4226-91db-8897726f4b49/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e [2023-11-06 21:03:43,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:03:43,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:03:43,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:03:43,528 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:03:43,529 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:03:43,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2023-11-06 21:03:46,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:03:46,777 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:03:46,778 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2023-11-06 21:03:46,785 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/data/041d37ae9/44162b3bd2f14b63b424453a524f5e52/FLAGb3d5e8a57 [2023-11-06 21:03:46,797 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/data/041d37ae9/44162b3bd2f14b63b424453a524f5e52 [2023-11-06 21:03:46,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:03:46,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:03:46,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:03:46,803 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:03:46,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:03:46,812 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:03:46" (1/1) ... [2023-11-06 21:03:46,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263c0f50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:46, skipping insertion in model container [2023-11-06 21:03:46,814 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:03:46" (1/1) ... [2023-11-06 21:03:46,839 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:03:47,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:03:47,038 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 21:03:47,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3e5987fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:47, skipping insertion in model container [2023-11-06 21:03:47,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:03:47,039 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 21:03:47,041 INFO L158 Benchmark]: Toolchain (without parser) took 238.81ms. Allocated memory is still 148.9MB. Free memory was 110.7MB in the beginning and 100.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:03:47,041 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:03:47,042 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.40ms. Allocated memory is still 148.9MB. Free memory was 110.7MB in the beginning and 100.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 21:03:47,043 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 109.1MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.40ms. Allocated memory is still 148.9MB. Free memory was 110.7MB in the beginning and 100.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 114]: 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_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/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_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/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_e23d57f9-1625-4226-91db-8897726f4b49/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 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:03:49,425 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:03:49,507 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 21:03:49,514 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:03:49,514 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:03:49,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:03:49,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:03:49,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:03:49,546 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:03:49,547 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:03:49,547 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 21:03:49,548 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 21:03:49,549 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 21:03:49,549 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 21:03:49,550 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 21:03:49,551 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 21:03:49,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:03:49,552 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:03:49,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:03:49,553 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:03:49,554 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:03:49,554 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:03:49,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:03:49,555 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 21:03:49,556 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 21:03:49,557 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 21:03:49,557 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:03:49,558 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 21:03:49,558 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 21:03:49,559 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 21:03:49,559 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:03:49,559 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:03:49,560 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:03:49,560 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:03:49,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:03:49,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:03:49,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:03:49,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:03:49,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:03:49,562 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 21:03:49,563 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 21:03:49,563 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 21:03:49,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:03:49,564 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_e23d57f9-1625-4226-91db-8897726f4b49/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca4c99e545bc332635ee8b9969d24118d6fd539f8535aa6ae4c72d296ec330e [2023-11-06 21:03:49,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:03:49,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:03:49,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:03:49,943 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:03:49,944 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:03:49,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2023-11-06 21:03:53,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:03:53,402 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:03:53,403 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/sv-benchmarks/c/weaver/chl-word-symm.wvr.c [2023-11-06 21:03:53,412 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/data/99db7dfcd/8c1b12be739b4e9f992b1d944f3103f5/FLAG60aee2d86 [2023-11-06 21:03:53,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/data/99db7dfcd/8c1b12be739b4e9f992b1d944f3103f5 [2023-11-06 21:03:53,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:03:53,432 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:03:53,433 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:03:53,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:03:53,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:03:53,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:53,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d353dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53, skipping insertion in model container [2023-11-06 21:03:53,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:53,466 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:03:53,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:03:53,782 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 21:03:53,794 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:03:53,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:03:53,849 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:03:53,896 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:03:53,921 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:03:53,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53 WrapperNode [2023-11-06 21:03:53,922 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:03:53,923 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:03:53,923 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:03:53,923 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:03:53,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:53,957 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:53,999 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 131 [2023-11-06 21:03:53,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:03:54,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:03:54,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:03:54,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:03:54,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:54,011 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:54,035 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:54,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:54,064 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:54,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:54,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:54,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:54,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:03:54,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:03:54,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:03:54,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:03:54,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (1/1) ... [2023-11-06 21:03:54,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:03:54,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 21:03:54,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:03:54,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e23d57f9-1625-4226-91db-8897726f4b49/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:03:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:03:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 21:03:54,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:03:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 21:03:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 21:03:54,181 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 21:03:54,181 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 21:03:54,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 21:03:54,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:03:54,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:03:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:03:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:03:54,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 21:03:54,187 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:03:54,382 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:03:54,390 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:03:55,163 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:03:55,173 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:03:55,174 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 21:03:55,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:03:55 BoogieIcfgContainer [2023-11-06 21:03:55,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:03:55,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:03:55,179 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:03:55,182 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:03:55,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:03:53" (1/3) ... [2023-11-06 21:03:55,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2d968c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:03:55, skipping insertion in model container [2023-11-06 21:03:55,183 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:03:53" (2/3) ... [2023-11-06 21:03:55,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2d968c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:03:55, skipping insertion in model container [2023-11-06 21:03:55,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:03:55" (3/3) ... [2023-11-06 21:03:55,185 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-symm.wvr.c [2023-11-06 21:03:55,205 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:03:55,205 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2023-11-06 21:03:55,205 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:03:55,352 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 21:03:55,406 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 21:03:55,429 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 247 places, 261 transitions, 536 flow [2023-11-06 21:03:55,438 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 247 places, 261 transitions, 536 flow [2023-11-06 21:03:55,440 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 261 transitions, 536 flow [2023-11-06 21:03:55,605 INFO L124 PetriNetUnfolderBase]: 21/259 cut-off events. [2023-11-06 21:03:55,606 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 21:03:55,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 268 conditions, 259 events. 21/259 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 416 event pairs, 0 based on Foata normal form. 0/208 useless extension candidates. Maximal degree in co-relation 169. Up to 3 conditions per place. [2023-11-06 21:03:55,617 INFO L119 LiptonReduction]: Number of co-enabled transitions 4836