./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/loop-tiling-eq.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_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/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_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/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_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/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 2bf204635285748ea2bd88f763410b9afff54eeccde3aa0a970ff723633af9c2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:35:21,984 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:35:22,056 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:35:22,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:35:22,063 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:35:22,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:35:22,116 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:35:22,117 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:35:22,118 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:35:22,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:35:22,123 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:35:22,125 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:35:22,125 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:35:22,127 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:35:22,127 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:35:22,128 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:35:22,128 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:35:22,129 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:35:22,129 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:35:22,130 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:35:22,131 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:35:22,131 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:35:22,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:35:22,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:35:22,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:35:22,134 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:35:22,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:35:22,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:35:22,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:35:22,135 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:35:22,136 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:35:22,136 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:35:22,136 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:35:22,137 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:35:22,137 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:35:22,137 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:35:22,138 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:35:22,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:35:22,138 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:35:22,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:35:22,139 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:35:22,139 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:35:22,139 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:35:22,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:35:22,140 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:35:22,140 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:35:22,140 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_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf204635285748ea2bd88f763410b9afff54eeccde3aa0a970ff723633af9c2 [2023-11-06 20:35:22,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:35:22,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:35:22,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:35:22,477 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:35:22,479 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:35:22,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2023-11-06 20:35:25,800 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:35:26,000 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:35:26,001 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2023-11-06 20:35:26,009 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/data/4659f198e/f3db006be0dc4938851063ea1b90d8f3/FLAG992cc89cc [2023-11-06 20:35:26,022 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/data/4659f198e/f3db006be0dc4938851063ea1b90d8f3 [2023-11-06 20:35:26,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:35:26,026 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:35:26,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:35:26,028 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:35:26,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:35:26,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:35:26" (1/1) ... [2023-11-06 20:35:26,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62163d53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:26, skipping insertion in model container [2023-11-06 20:35:26,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:35:26" (1/1) ... [2023-11-06 20:35:26,074 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:35:26,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:35:26,266 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 20:35:26,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2efd9d42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:26, skipping insertion in model container [2023-11-06 20:35:26,266 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:35:26,267 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:35:26,269 INFO L158 Benchmark]: Toolchain (without parser) took 241.89ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 94.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 20:35:26,269 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:35:26,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.31ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 94.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 20:35:26,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 109.1MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.31ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 94.2MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 79]: 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_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/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_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/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_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/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 2bf204635285748ea2bd88f763410b9afff54eeccde3aa0a970ff723633af9c2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:35:28,698 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:35:28,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:35:28,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:35:28,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:35:28,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:35:28,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:35:28,867 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:35:28,868 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:35:28,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:35:28,873 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:35:28,874 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:35:28,874 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:35:28,876 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:35:28,876 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:35:28,877 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:35:28,877 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:35:28,878 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:35:28,879 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:35:28,879 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:35:28,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:35:28,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:35:28,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:35:28,881 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:35:28,881 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:35:28,882 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:35:28,882 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:35:28,882 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:35:28,883 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:35:28,883 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:35:28,885 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:35:28,885 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:35:28,885 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:35:28,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:35:28,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:35:28,885 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:35:28,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:35:28,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:35:28,886 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:35:28,886 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:35:28,886 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:35:28,887 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:35:28,887 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:35:28,887 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_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf204635285748ea2bd88f763410b9afff54eeccde3aa0a970ff723633af9c2 [2023-11-06 20:35:29,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:35:29,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:35:29,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:35:29,365 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:35:29,365 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:35:29,367 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2023-11-06 20:35:32,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:35:32,875 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:35:32,875 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/sv-benchmarks/c/weaver/loop-tiling-eq.wvr.c [2023-11-06 20:35:32,887 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/data/5272ac664/9fe1e5502ba746a498856f43f3e50d29/FLAGe5a92b418 [2023-11-06 20:35:32,907 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/data/5272ac664/9fe1e5502ba746a498856f43f3e50d29 [2023-11-06 20:35:32,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:35:32,914 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:35:32,918 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:35:32,918 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:35:32,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:35:32,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:35:32" (1/1) ... [2023-11-06 20:35:32,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d6d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:32, skipping insertion in model container [2023-11-06 20:35:32,926 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:35:32" (1/1) ... [2023-11-06 20:35:32,958 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:35:33,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:35:33,170 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:35:33,175 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:35:33,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:35:33,200 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:35:33,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:35:33,250 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:35:33,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33 WrapperNode [2023-11-06 20:35:33,251 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:35:33,252 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:35:33,252 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:35:33,252 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:35:33,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (1/1) ... [2023-11-06 20:35:33,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (1/1) ... [2023-11-06 20:35:33,320 INFO L138 Inliner]: procedures = 27, calls = 42, calls flagged for inlining = 14, calls inlined = 18, statements flattened = 191 [2023-11-06 20:35:33,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:35:33,323 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:35:33,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:35:33,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:35:33,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (1/1) ... [2023-11-06 20:35:33,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (1/1) ... [2023-11-06 20:35:33,360 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (1/1) ... [2023-11-06 20:35:33,360 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (1/1) ... [2023-11-06 20:35:33,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (1/1) ... [2023-11-06 20:35:33,393 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (1/1) ... [2023-11-06 20:35:33,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (1/1) ... [2023-11-06 20:35:33,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (1/1) ... [2023-11-06 20:35:33,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:35:33,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:35:33,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:35:33,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:35:33,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (1/1) ... [2023-11-06 20:35:33,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:35:33,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:35:33,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:35:33,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4023e29-66c9-43fb-b6c0-40245fbc2f4a/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:35:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:35:33,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:35:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:35:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:35:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:35:33,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 20:35:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 20:35:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 20:35:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 20:35:33,543 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 20:35:33,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:35:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:35:33,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:35:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:35:33,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:35:33,546 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 20:35:33,720 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:35:33,722 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:35:35,023 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:35:35,040 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:35:35,040 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-06 20:35:35,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:35:35 BoogieIcfgContainer [2023-11-06 20:35:35,045 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:35:35,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:35:35,049 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:35:35,054 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:35:35,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:35:32" (1/3) ... [2023-11-06 20:35:35,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e002caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:35:35, skipping insertion in model container [2023-11-06 20:35:35,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:35:33" (2/3) ... [2023-11-06 20:35:35,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e002caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:35:35, skipping insertion in model container [2023-11-06 20:35:35,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:35:35" (3/3) ... [2023-11-06 20:35:35,061 INFO L112 eAbstractionObserver]: Analyzing ICFG loop-tiling-eq.wvr.c [2023-11-06 20:35:35,083 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:35:35,084 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2023-11-06 20:35:35,084 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:35:35,275 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 20:35:35,332 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:35:35,361 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 302 places, 321 transitions, 656 flow [2023-11-06 20:35:35,368 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 302 places, 321 transitions, 656 flow [2023-11-06 20:35:35,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 302 places, 321 transitions, 656 flow [2023-11-06 20:35:35,585 INFO L124 PetriNetUnfolderBase]: 26/319 cut-off events. [2023-11-06 20:35:35,585 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 20:35:35,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328 conditions, 319 events. 26/319 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 466 event pairs, 0 based on Foata normal form. 0/259 useless extension candidates. Maximal degree in co-relation 229. Up to 2 conditions per place. [2023-11-06 20:35:35,601 INFO L119 LiptonReduction]: Number of co-enabled transitions 2008