./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/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_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/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_e45a4df7-6070-4bad-ab43-ca314a2fc94a/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 85fe539c4a9811cd5d49f239f4680cc0b3752a2958e9f287c34e302b923af4f9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:55:37,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:55:37,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:55:37,411 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:55:37,412 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:55:37,469 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:55:37,471 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:55:37,471 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:55:37,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:55:37,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:55:37,478 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:55:37,479 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:55:37,480 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:55:37,482 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:55:37,482 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:55:37,483 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:55:37,483 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:55:37,484 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:55:37,484 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:55:37,485 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:55:37,485 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:55:37,486 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:55:37,486 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:55:37,487 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:55:37,488 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:55:37,488 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:55:37,489 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:55:37,489 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:55:37,489 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:55:37,490 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:55:37,491 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:55:37,491 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:55:37,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:55:37,492 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:55:37,492 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:55:37,492 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:55:37,493 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:55:37,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:55:37,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:55:37,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:55:37,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:55:37,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:55:37,494 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:55:37,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:55:37,495 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:55:37,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:55:37,496 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_e45a4df7-6070-4bad-ab43-ca314a2fc94a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85fe539c4a9811cd5d49f239f4680cc0b3752a2958e9f287c34e302b923af4f9 [2023-11-06 20:55:37,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:55:37,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:55:37,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:55:37,872 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:55:37,874 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:55:37,875 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i [2023-11-06 20:55:40,863 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:55:41,339 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:55:41,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i [2023-11-06 20:55:41,362 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/data/55a19fdff/737b733939424934afd6e1288531b934/FLAGd935558a1 [2023-11-06 20:55:41,377 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/data/55a19fdff/737b733939424934afd6e1288531b934 [2023-11-06 20:55:41,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:55:41,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:55:41,386 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:41,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:55:41,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:55:41,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:41" (1/1) ... [2023-11-06 20:55:41,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@499f314d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:41, skipping insertion in model container [2023-11-06 20:55:41,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:41" (1/1) ... [2023-11-06 20:55:41,503 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:55:42,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:42,337 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 20:55:42,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3385ae87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:42, skipping insertion in model container [2023-11-06 20:55:42,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:42,338 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 20:55:42,340 INFO L158 Benchmark]: Toolchain (without parser) took 957.30ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 105.5MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-06 20:55:42,341 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 20:55:42,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 951.96ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 105.5MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-06 20:55:42,343 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 98.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 951.96ms. Allocated memory is still 167.8MB. Free memory was 134.4MB in the beginning and 105.5MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 734]: 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_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/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_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/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_e45a4df7-6070-4bad-ab43-ca314a2fc94a/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 85fe539c4a9811cd5d49f239f4680cc0b3752a2958e9f287c34e302b923af4f9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:55:44,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:55:45,019 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-06 20:55:45,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:55:45,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:55:45,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:55:45,086 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:55:45,087 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:55:45,088 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:55:45,093 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:55:45,094 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:55:45,094 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:55:45,095 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:55:45,097 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:55:45,097 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:55:45,098 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:55:45,099 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:55:45,099 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:55:45,100 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:55:45,102 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:55:45,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:55:45,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:55:45,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:55:45,104 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:55:45,104 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:55:45,105 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:55:45,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:55:45,106 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:55:45,106 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 20:55:45,107 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 20:55:45,108 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:55:45,109 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:55:45,109 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:55:45,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:55:45,110 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 20:55:45,110 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:55:45,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:55:45,111 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:55:45,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:55:45,112 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-06 20:55:45,112 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 20:55:45,113 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:55:45,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:55:45,113 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_e45a4df7-6070-4bad-ab43-ca314a2fc94a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85fe539c4a9811cd5d49f239f4680cc0b3752a2958e9f287c34e302b923af4f9 [2023-11-06 20:55:45,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:55:45,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:55:45,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:55:45,564 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:55:45,565 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:55:45,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i [2023-11-06 20:55:48,860 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:55:49,390 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:55:49,391 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test10-1.i [2023-11-06 20:55:49,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/data/601941196/bf08ee86e3ba427fa6ba00118b7eb2fc/FLAG9e5b3e052 [2023-11-06 20:55:49,435 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/data/601941196/bf08ee86e3ba427fa6ba00118b7eb2fc [2023-11-06 20:55:49,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:55:49,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:55:49,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:49,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:55:49,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:55:49,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:49" (1/1) ... [2023-11-06 20:55:49,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bfecc89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:49, skipping insertion in model container [2023-11-06 20:55:49,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:55:49" (1/1) ... [2023-11-06 20:55:49,551 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:55:50,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:50,444 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 20:55:50,463 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:55:50,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:50,633 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:55:50,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:55:50,802 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:55:50,810 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:55:50,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50 WrapperNode [2023-11-06 20:55:50,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:55:50,812 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:55:50,813 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:55:50,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:55:50,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,956 INFO L138 Inliner]: procedures = 180, calls = 525, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2203 [2023-11-06 20:55:50,956 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:55:50,957 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:55:50,957 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:55:50,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:55:50,967 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,989 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:50,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:51,097 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:51,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:51,149 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:51,161 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:51,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:55:51,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:55:51,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:55:51,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:55:51,191 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (1/1) ... [2023-11-06 20:55:51,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:55:51,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:55:51,230 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:55:51,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:55:51,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 20:55:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2023-11-06 20:55:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2023-11-06 20:55:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 20:55:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 20:55:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 20:55:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 20:55:51,276 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 20:55:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 20:55:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:55:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 20:55:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:55:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 20:55:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 20:55:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:55:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 20:55:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 20:55:51,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:55:51,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:55:51,592 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:55:51,596 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:55:51,601 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 20:56:01,939 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:56:01,963 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:56:01,963 INFO L302 CfgBuilder]: Removed 151 assume(true) statements. [2023-11-06 20:56:01,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:56:01 BoogieIcfgContainer [2023-11-06 20:56:01,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:56:01,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:56:01,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:56:01,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:56:01,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:55:49" (1/3) ... [2023-11-06 20:56:01,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c10812c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:56:01, skipping insertion in model container [2023-11-06 20:56:01,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:55:50" (2/3) ... [2023-11-06 20:56:01,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c10812c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:56:01, skipping insertion in model container [2023-11-06 20:56:01,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:56:01" (3/3) ... [2023-11-06 20:56:01,980 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test10-1.i [2023-11-06 20:56:02,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:56:02,001 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 990 error locations. [2023-11-06 20:56:02,097 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 20:56:02,105 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5e68ad02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-06 20:56:02,105 INFO L358 AbstractCegarLoop]: Starting to check reachability of 990 error locations. [2023-11-06 20:56:02,115 INFO L276 IsEmpty]: Start isEmpty. Operand has 2080 states, 1078 states have (on average 2.1808905380333954) internal successors, (2351), 2066 states have internal predecessors, (2351), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-06 20:56:02,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 20:56:02,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:56:02,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 20:56:02,123 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 987 more)] === [2023-11-06 20:56:02,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:56:02,130 INFO L85 PathProgramCache]: Analyzing trace with hash 66598, now seen corresponding path program 1 times [2023-11-06 20:56:02,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:56:02,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514425271] [2023-11-06 20:56:02,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:56:02,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:56:02,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:56:02,154 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:56:02,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 20:56:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:56:02,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 20:56:02,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:56:02,528 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 20:56:02,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:56:02,587 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:56:02,588 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:56:02,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514425271] [2023-11-06 20:56:02,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514425271] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:56:02,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:56:02,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:56:02,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526605484] [2023-11-06 20:56:02,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:56:02,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:56:02,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:56:02,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:56:02,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:56:02,649 INFO L87 Difference]: Start difference. First operand has 2080 states, 1078 states have (on average 2.1808905380333954) internal successors, (2351), 2066 states have internal predecessors, (2351), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:56:07,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 20:56:07,665 INFO L93 Difference]: Finished difference Result 2583 states and 2746 transitions. [2023-11-06 20:56:07,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 20:56:07,667 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 20:56:07,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 20:56:07,699 INFO L225 Difference]: With dead ends: 2583 [2023-11-06 20:56:07,699 INFO L226 Difference]: Without dead ends: 2581 [2023-11-06 20:56:07,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:56:07,705 INFO L413 NwaCegarLoop]: 1287 mSDtfsCounter, 1967 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 1275 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-06 20:56:07,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1977 Valid, 1666 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1275 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-06 20:56:07,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2023-11-06 20:56:07,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 2228. [2023-11-06 20:56:07,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2228 states, 1250 states have (on average 2.0144) internal successors, (2518), 2212 states have internal predecessors, (2518), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 20:56:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2550 transitions. [2023-11-06 20:56:07,864 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2550 transitions. Word has length 3 [2023-11-06 20:56:07,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 20:56:07,866 INFO L495 AbstractCegarLoop]: Abstraction has 2228 states and 2550 transitions. [2023-11-06 20:56:07,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 20:56:07,866 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2550 transitions. [2023-11-06 20:56:07,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 20:56:07,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 20:56:07,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 20:56:07,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 20:56:08,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:56:08,088 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 987 more)] === [2023-11-06 20:56:08,089 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 20:56:08,089 INFO L85 PathProgramCache]: Analyzing trace with hash 66599, now seen corresponding path program 1 times [2023-11-06 20:56:08,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-06 20:56:08,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730312727] [2023-11-06 20:56:08,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 20:56:08,090 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 20:56:08,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/mathsat [2023-11-06 20:56:08,092 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 20:56:08,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e45a4df7-6070-4bad-ab43-ca314a2fc94a/bin/utaipan-verify-FOvIYxoinp/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 20:56:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 20:56:08,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 20:56:08,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 20:56:08,296 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 20:56:08,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 20:56:08,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 20:56:08,313 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-06 20:56:08,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730312727] [2023-11-06 20:56:08,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730312727] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 20:56:08,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 20:56:08,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 20:56:08,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338896464] [2023-11-06 20:56:08,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 20:56:08,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 20:56:08,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-06 20:56:08,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 20:56:08,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 20:56:08,323 INFO L87 Difference]: Start difference. First operand 2228 states and 2550 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)