./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/unroll-2.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_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/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_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/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_5e85ffeb-e44e-456a-a736-be145eee6b3d/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 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:31:39,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:31:39,089 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:31:39,095 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:31:39,096 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:31:39,123 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:31:39,123 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:31:39,124 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:31:39,125 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:31:39,126 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:31:39,126 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:31:39,127 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:31:39,127 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:31:39,128 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:31:39,129 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:31:39,129 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:31:39,130 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:31:39,131 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:31:39,131 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:31:39,132 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:31:39,133 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:31:39,133 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:31:39,134 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:31:39,135 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:31:39,136 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:31:39,136 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:31:39,137 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:31:39,137 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:31:39,138 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:31:39,138 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:31:39,139 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:31:39,139 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:31:39,140 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:31:39,140 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:31:39,141 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:31:39,141 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:31:39,142 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:31:39,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:31:39,142 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:31:39,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:31:39,143 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:31:39,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:31:39,144 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:31:39,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:31:39,144 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:31:39,145 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:31:39,145 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_5e85ffeb-e44e-456a-a736-be145eee6b3d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf [2023-11-06 20:31:39,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:31:39,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:31:39,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:31:39,442 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:31:39,443 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:31:39,444 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/unroll-2.wvr.c [2023-11-06 20:31:42,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:31:42,885 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:31:42,886 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/sv-benchmarks/c/weaver/unroll-2.wvr.c [2023-11-06 20:31:42,896 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/data/9a44fd47b/1705e3db01964ba3a5058da47e64f34c/FLAGf13ea7011 [2023-11-06 20:31:42,922 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/data/9a44fd47b/1705e3db01964ba3a5058da47e64f34c [2023-11-06 20:31:42,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:31:42,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:31:42,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:31:42,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:31:42,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:31:42,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:31:42" (1/1) ... [2023-11-06 20:31:42,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@456b2ee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:42, skipping insertion in model container [2023-11-06 20:31:42,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:31:42" (1/1) ... [2023-11-06 20:31:42,981 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:31:43,213 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:31:43,227 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 20:31:43,228 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@69d86187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:43, skipping insertion in model container [2023-11-06 20:31:43,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:31:43,228 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:31:43,231 INFO L158 Benchmark]: Toolchain (without parser) took 294.68ms. Allocated memory is still 190.8MB. Free memory was 145.0MB in the beginning and 135.1MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 20:31:43,231 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 190.8MB. Free memory is still 164.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:31:43,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.83ms. Allocated memory is still 190.8MB. Free memory was 144.8MB in the beginning and 135.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 20:31:43,234 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 190.8MB. Free memory is still 164.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.83ms. Allocated memory is still 190.8MB. Free memory was 144.8MB in the beginning and 135.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 97]: 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_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/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_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/unroll-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/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_5e85ffeb-e44e-456a-a736-be145eee6b3d/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 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:31:46,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:31:46,166 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:31:46,175 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:31:46,176 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:31:46,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:31:46,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:31:46,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:31:46,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:31:46,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:31:46,241 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:31:46,242 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:31:46,242 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:31:46,244 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:31:46,245 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:31:46,245 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:31:46,246 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:31:46,247 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:31:46,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:31:46,249 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:31:46,249 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:31:46,250 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:31:46,250 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:31:46,251 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:31:46,252 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:31:46,252 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:31:46,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:31:46,253 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:31:46,254 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:31:46,254 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:31:46,256 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:31:46,256 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:31:46,257 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:31:46,257 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:31:46,258 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:31:46,258 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:31:46,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:31:46,260 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:31:46,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:31:46,260 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:31:46,261 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:31:46,261 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:31:46,261 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:31:46,262 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_5e85ffeb-e44e-456a-a736-be145eee6b3d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5393d9cf3b7cc0865f031a716dd61208c034931418b29464b30da9c6eaf669bf [2023-11-06 20:31:46,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:31:46,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:31:46,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:31:46,829 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:31:46,830 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:31:46,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/unroll-2.wvr.c [2023-11-06 20:31:50,002 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:31:50,324 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:31:50,325 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/sv-benchmarks/c/weaver/unroll-2.wvr.c [2023-11-06 20:31:50,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/data/1c74eaeea/c832ce102bdd401c87d9597bac3c7e3b/FLAGb0e7c3c6c [2023-11-06 20:31:50,357 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/data/1c74eaeea/c832ce102bdd401c87d9597bac3c7e3b [2023-11-06 20:31:50,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:31:50,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:31:50,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:31:50,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:31:50,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:31:50,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:50,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b08940b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50, skipping insertion in model container [2023-11-06 20:31:50,379 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:50,411 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:31:50,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:31:50,724 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:31:50,737 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:31:50,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:31:50,786 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:31:50,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:31:50,864 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:31:50,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50 WrapperNode [2023-11-06 20:31:50,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:31:50,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:31:50,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:31:50,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:31:50,876 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:50,909 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:50,963 INFO L138 Inliner]: procedures = 26, calls = 33, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 137 [2023-11-06 20:31:50,964 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:31:50,966 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:31:50,966 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:31:50,966 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:31:50,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:50,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:51,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:51,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:51,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:51,057 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:51,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:51,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:51,066 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:31:51,067 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:31:51,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:31:51,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:31:51,068 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (1/1) ... [2023-11-06 20:31:51,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:31:51,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:31:51,157 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:31:51,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e85ffeb-e44e-456a-a736-be145eee6b3d/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:31:51,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:31:51,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:31:51,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:31:51,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:31:51,208 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 20:31:51,208 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 20:31:51,208 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 20:31:51,209 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 20:31:51,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:31:51,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:31:51,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:31:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:31:51,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:31:51,214 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 20:31:51,401 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:31:51,404 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:31:51,976 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:31:51,986 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:31:51,987 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 20:31:51,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:31:51 BoogieIcfgContainer [2023-11-06 20:31:51,994 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:31:51,997 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:31:52,002 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:31:52,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:31:52,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:31:50" (1/3) ... [2023-11-06 20:31:52,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505a77ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:31:52, skipping insertion in model container [2023-11-06 20:31:52,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:31:50" (2/3) ... [2023-11-06 20:31:52,022 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@505a77ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:31:52, skipping insertion in model container [2023-11-06 20:31:52,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:31:51" (3/3) ... [2023-11-06 20:31:52,024 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-2.wvr.c [2023-11-06 20:31:52,048 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:31:52,048 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-06 20:31:52,049 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:31:52,243 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 20:31:52,299 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:31:52,314 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 185 places, 192 transitions, 398 flow [2023-11-06 20:31:52,317 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 185 places, 192 transitions, 398 flow [2023-11-06 20:31:52,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 192 transitions, 398 flow [2023-11-06 20:31:52,404 INFO L124 PetriNetUnfolderBase]: 14/190 cut-off events. [2023-11-06 20:31:52,404 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 20:31:52,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 190 events. 14/190 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 231 event pairs, 0 based on Foata normal form. 0/158 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2023-11-06 20:31:52,415 INFO L119 LiptonReduction]: Number of co-enabled transitions 3004