./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:21:22,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:21:22,460 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:21:22,466 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:21:22,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:21:22,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:21:22,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:21:22,499 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:21:22,500 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:21:22,500 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:21:22,501 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:21:22,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:21:22,502 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:21:22,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:21:22,504 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:21:22,504 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:21:22,505 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:21:22,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:21:22,506 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:21:22,507 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:21:22,508 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:21:22,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:21:22,509 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:21:22,509 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:21:22,510 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:21:22,511 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:21:22,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:21:22,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:21:22,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:21:22,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:22,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:21:22,514 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:21:22,514 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:21:22,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:21:22,515 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:21:22,516 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:21:22,516 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:21:22,517 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:21:22,517 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2023-11-12 02:21:22,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:21:22,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:21:22,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:21:22,800 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:21:22,800 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:21:22,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-11-12 02:21:26,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:21:26,489 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:21:26,489 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-11-12 02:21:26,515 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/data/a7d6a7262/a43dbccf8c2a411f8deeff293871aaee/FLAG6851ee5d2 [2023-11-12 02:21:26,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/data/a7d6a7262/a43dbccf8c2a411f8deeff293871aaee [2023-11-12 02:21:26,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:21:26,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:21:26,534 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:26,534 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:21:26,540 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:21:26,541 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:26" (1/1) ... [2023-11-12 02:21:26,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7998f52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:26, skipping insertion in model container [2023-11-12 02:21:26,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:26" (1/1) ... [2023-11-12 02:21:26,613 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:21:27,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:27,363 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) [2023-11-12 02:21:27,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@14d3353f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:27, skipping insertion in model container [2023-11-12 02:21:27,380 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:27,380 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 02:21:27,382 INFO L158 Benchmark]: Toolchain (without parser) took 848.96ms. Allocated memory is still 109.1MB. Free memory was 62.1MB in the beginning and 41.7MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:21:27,383 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory was 75.4MB in the beginning and 75.4MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:21:27,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 846.23ms. Allocated memory is still 109.1MB. Free memory was 61.9MB in the beginning and 41.7MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:21:27,386 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory was 75.4MB in the beginning and 75.4MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 846.23ms. Allocated memory is still 109.1MB. Free memory was 61.9MB in the beginning and 41.7MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: 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_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:21:29,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:21:30,032 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:21:30,042 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:21:30,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:21:30,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:21:30,100 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:21:30,101 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:21:30,102 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:21:30,107 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:21:30,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:21:30,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:21:30,109 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:21:30,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:21:30,112 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:21:30,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:21:30,113 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:21:30,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:21:30,115 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:21:30,116 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:21:30,116 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:21:30,117 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:21:30,118 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:21:30,118 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:21:30,119 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:21:30,119 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:21:30,120 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:21:30,120 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:21:30,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:21:30,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:21:30,123 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:21:30,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:30,124 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:21:30,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:21:30,125 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:21:30,125 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:21:30,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:21:30,126 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:21:30,126 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:21:30,127 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:21:30,128 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:21:30,128 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2023-11-12 02:21:30,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:21:30,593 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:21:30,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:21:30,597 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:21:30,598 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:21:30,599 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-11-12 02:21:33,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:21:34,345 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:21:34,346 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-11-12 02:21:34,379 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/data/63f612b00/df02a2d668b34170b55776e5ac28e0da/FLAGef8c7b4d0 [2023-11-12 02:21:34,393 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/data/63f612b00/df02a2d668b34170b55776e5ac28e0da [2023-11-12 02:21:34,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:21:34,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:21:34,399 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:34,399 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:21:34,406 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:21:34,407 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:34" (1/1) ... [2023-11-12 02:21:34,408 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@355302a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:34, skipping insertion in model container [2023-11-12 02:21:34,408 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:21:34" (1/1) ... [2023-11-12 02:21:34,512 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:21:35,434 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:35,454 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 02:21:35,482 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:21:35,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:35,626 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:21:35,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:21:35,756 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:21:35,765 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:21:35,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35 WrapperNode [2023-11-12 02:21:35,766 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:21:35,767 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:35,768 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:21:35,768 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:21:35,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,928 INFO L138 Inliner]: procedures = 180, calls = 338, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1214 [2023-11-12 02:21:35,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:21:35,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:21:35,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:21:35,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:21:35,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,941 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:35,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:36,032 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:36,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:36,052 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:36,059 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:36,072 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:21:36,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:21:36,073 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:21:36,073 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:21:36,084 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (1/1) ... [2023-11-12 02:21:36,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:21:36,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:21:36,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:21:36,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:21:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-12 02:21:36,165 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-12 02:21:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-12 02:21:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:21:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:21:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:21:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:21:36,166 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:21:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:21:36,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:21:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:21:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:21:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 02:21:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:21:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:21:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:21:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:21:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:21:36,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:21:36,455 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:21:36,456 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:21:36,495 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:21:42,512 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:21:42,536 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:21:42,536 INFO L302 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-12 02:21:42,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:42 BoogieIcfgContainer [2023-11-12 02:21:42,543 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:21:42,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:21:42,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:21:42,550 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:21:42,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:21:34" (1/3) ... [2023-11-12 02:21:42,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779e8c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:21:42, skipping insertion in model container [2023-11-12 02:21:42,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:21:35" (2/3) ... [2023-11-12 02:21:42,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779e8c57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:21:42, skipping insertion in model container [2023-11-12 02:21:42,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:21:42" (3/3) ... [2023-11-12 02:21:42,556 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test3-2.i [2023-11-12 02:21:42,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:21:42,577 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 638 error locations. [2023-11-12 02:21:42,665 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:21:42,672 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=PETRI_NET, 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;@66005689, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:21:42,672 INFO L358 AbstractCegarLoop]: Starting to check reachability of 638 error locations. [2023-11-12 02:21:42,683 INFO L276 IsEmpty]: Start isEmpty. Operand has 1284 states, 635 states have (on average 2.234645669291339) internal successors, (1419), 1277 states have internal predecessors, (1419), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-12 02:21:42,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 02:21:42,689 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:42,690 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 02:21:42,691 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:21:42,698 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:42,699 INFO L85 PathProgramCache]: Analyzing trace with hash 47731, now seen corresponding path program 1 times [2023-11-12 02:21:42,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:21:42,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083186686] [2023-11-12 02:21:42,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:42,713 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 [2023-11-12 02:21:42,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:21:42,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:21:42,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:21:42,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:42,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:21:42,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:43,022 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 [2023-11-12 02:21:43,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:43,035 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:21:43,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:21:43,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083186686] [2023-11-12 02:21:43,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083186686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:43,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:43,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:21:43,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386358475] [2023-11-12 02:21:43,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:43,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:21:43,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:21:43,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:21:43,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:43,095 INFO L87 Difference]: Start difference. First operand has 1284 states, 635 states have (on average 2.234645669291339) internal successors, (1419), 1277 states have internal predecessors, (1419), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) 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) [2023-11-12 02:21:46,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:46,086 INFO L93 Difference]: Finished difference Result 1460 states and 1545 transitions. [2023-11-12 02:21:46,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:21:46,088 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 [2023-11-12 02:21:46,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:46,112 INFO L225 Difference]: With dead ends: 1460 [2023-11-12 02:21:46,113 INFO L226 Difference]: Without dead ends: 1458 [2023-11-12 02:21:46,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:46,118 INFO L413 NwaCegarLoop]: 782 mSDtfsCounter, 1189 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1197 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:46,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1197 Valid, 949 Invalid, 761 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-12 02:21:46,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2023-11-12 02:21:46,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1270. [2023-11-12 02:21:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 637 states have (on average 2.086342229199372) internal successors, (1329), 1263 states have internal predecessors, (1329), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:21:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1347 transitions. [2023-11-12 02:21:46,234 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1347 transitions. Word has length 3 [2023-11-12 02:21:46,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:46,234 INFO L495 AbstractCegarLoop]: Abstraction has 1270 states and 1347 transitions. [2023-11-12 02:21:46,235 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) [2023-11-12 02:21:46,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1347 transitions. [2023-11-12 02:21:46,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 02:21:46,237 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:46,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 02:21:46,250 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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)] Ended with exit code 0 [2023-11-12 02:21:46,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:21:46,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:21:46,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:46,443 INFO L85 PathProgramCache]: Analyzing trace with hash 47732, now seen corresponding path program 1 times [2023-11-12 02:21:46,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:21:46,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642842500] [2023-11-12 02:21:46,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:46,444 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 [2023-11-12 02:21:46,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:21:46,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:21:46,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:21:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:46,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:21:46,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:46,653 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 [2023-11-12 02:21:46,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:46,665 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:21:46,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:21:46,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642842500] [2023-11-12 02:21:46,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642842500] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:46,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:46,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:21:46,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795199141] [2023-11-12 02:21:46,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:46,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:21:46,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:21:46,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:21:46,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:46,670 INFO L87 Difference]: Start difference. First operand 1270 states and 1347 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) [2023-11-12 02:21:51,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:51,398 INFO L93 Difference]: Finished difference Result 1885 states and 2014 transitions. [2023-11-12 02:21:51,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:21:51,399 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 [2023-11-12 02:21:51,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:51,411 INFO L225 Difference]: With dead ends: 1885 [2023-11-12 02:21:51,411 INFO L226 Difference]: Without dead ends: 1885 [2023-11-12 02:21:51,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:51,413 INFO L413 NwaCegarLoop]: 1054 mSDtfsCounter, 656 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:51,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 1767 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-12 02:21:51,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2023-11-12 02:21:51,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1475. [2023-11-12 02:21:51,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 843 states have (on average 2.0711743772241995) internal successors, (1746), 1468 states have internal predecessors, (1746), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:21:51,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1764 transitions. [2023-11-12 02:21:51,471 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1764 transitions. Word has length 3 [2023-11-12 02:21:51,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:51,471 INFO L495 AbstractCegarLoop]: Abstraction has 1475 states and 1764 transitions. [2023-11-12 02:21:51,471 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) [2023-11-12 02:21:51,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1764 transitions. [2023-11-12 02:21:51,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 02:21:51,472 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:51,472 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:51,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:51,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:21:51,684 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:21:51,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:51,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1130822653, now seen corresponding path program 1 times [2023-11-12 02:21:51,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:21:51,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360669257] [2023-11-12 02:21:51,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:51,686 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 [2023-11-12 02:21:51,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:21:51,688 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:21:51,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (4)] Waiting until timeout for monitored process [2023-11-12 02:21:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:51,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:21:51,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:51,901 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 [2023-11-12 02:21:51,909 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 [2023-11-12 02:21:52,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:21:52,014 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-12 02:21:52,039 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-12 02:21:52,040 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-12 02:21:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:52,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:21:52,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:21:52,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360669257] [2023-11-12 02:21:52,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360669257] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:52,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:52,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:21:52,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461107467] [2023-11-12 02:21:52,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:52,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:21:52,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:21:52,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:21:52,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:21:52,071 INFO L87 Difference]: Start difference. First operand 1475 states and 1764 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-12 02:21:56,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:21:56,772 INFO L93 Difference]: Finished difference Result 1657 states and 1957 transitions. [2023-11-12 02:21:56,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:21:56,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2023-11-12 02:21:56,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:21:56,782 INFO L225 Difference]: With dead ends: 1657 [2023-11-12 02:21:56,782 INFO L226 Difference]: Without dead ends: 1657 [2023-11-12 02:21:56,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:21:56,787 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 2650 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2658 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-12 02:21:56,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2658 Valid, 556 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-12 02:21:56,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2023-11-12 02:21:56,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1259. [2023-11-12 02:21:56,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 637 states have (on average 2.0675039246467817) internal successors, (1317), 1252 states have internal predecessors, (1317), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:21:56,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1335 transitions. [2023-11-12 02:21:56,832 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1335 transitions. Word has length 7 [2023-11-12 02:21:56,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:21:56,832 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 1335 transitions. [2023-11-12 02:21:56,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-12 02:21:56,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1335 transitions. [2023-11-12 02:21:56,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:21:56,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:21:56,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:21:56,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:21:57,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:21:57,049 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:21:57,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:21:57,049 INFO L85 PathProgramCache]: Analyzing trace with hash 695763858, now seen corresponding path program 1 times [2023-11-12 02:21:57,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:21:57,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016545451] [2023-11-12 02:21:57,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:21:57,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:21:57,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:21:57,054 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:21:57,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (5)] Waiting until timeout for monitored process [2023-11-12 02:21:57,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:21:57,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:21:57,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:21:57,249 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 [2023-11-12 02:21:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:21:57,262 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:21:57,262 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:21:57,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016545451] [2023-11-12 02:21:57,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016545451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:21:57,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:21:57,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:21:57,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950535370] [2023-11-12 02:21:57,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:21:57,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:21:57,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:21:57,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:21:57,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:21:57,265 INFO L87 Difference]: Start difference. First operand 1259 states and 1335 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:22:00,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:00,372 INFO L93 Difference]: Finished difference Result 1590 states and 1696 transitions. [2023-11-12 02:22:00,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:22:00,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-12 02:22:00,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:00,383 INFO L225 Difference]: With dead ends: 1590 [2023-11-12 02:22:00,383 INFO L226 Difference]: Without dead ends: 1590 [2023-11-12 02:22:00,384 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:22:00,385 INFO L413 NwaCegarLoop]: 1179 mSDtfsCounter, 996 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:00,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 1537 Invalid, 884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-12 02:22:00,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1590 states. [2023-11-12 02:22:00,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1590 to 1210. [2023-11-12 02:22:00,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 637 states have (on average 1.9905808477237048) internal successors, (1268), 1203 states have internal predecessors, (1268), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:22:00,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1286 transitions. [2023-11-12 02:22:00,420 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1286 transitions. Word has length 8 [2023-11-12 02:22:00,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:00,421 INFO L495 AbstractCegarLoop]: Abstraction has 1210 states and 1286 transitions. [2023-11-12 02:22:00,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:22:00,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1286 transitions. [2023-11-12 02:22:00,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:22:00,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:00,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:00,439 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:00,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:00,635 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:22:00,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:00,635 INFO L85 PathProgramCache]: Analyzing trace with hash 695763859, now seen corresponding path program 1 times [2023-11-12 02:22:00,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:00,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608852524] [2023-11-12 02:22:00,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:00,637 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 [2023-11-12 02:22:00,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:00,639 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:22:00,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (6)] Waiting until timeout for monitored process [2023-11-12 02:22:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:00,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:22:00,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:00,811 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 [2023-11-12 02:22:00,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:00,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:00,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:00,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608852524] [2023-11-12 02:22:00,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608852524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:00,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:00,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:22:00,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961843674] [2023-11-12 02:22:00,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:00,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:22:00,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:00,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:22:00,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:22:00,848 INFO L87 Difference]: Start difference. First operand 1210 states and 1286 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:22:04,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:04,917 INFO L93 Difference]: Finished difference Result 1671 states and 1780 transitions. [2023-11-12 02:22:04,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:22:04,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-12 02:22:04,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:04,927 INFO L225 Difference]: With dead ends: 1671 [2023-11-12 02:22:04,927 INFO L226 Difference]: Without dead ends: 1671 [2023-11-12 02:22:04,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:22:04,928 INFO L413 NwaCegarLoop]: 1388 mSDtfsCounter, 681 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:04,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1940 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 834 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-12 02:22:04,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2023-11-12 02:22:04,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1232. [2023-11-12 02:22:04,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 669 states have (on average 1.9790732436472347) internal successors, (1324), 1225 states have internal predecessors, (1324), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:22:04,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1342 transitions. [2023-11-12 02:22:04,965 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1342 transitions. Word has length 8 [2023-11-12 02:22:04,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:04,966 INFO L495 AbstractCegarLoop]: Abstraction has 1232 states and 1342 transitions. [2023-11-12 02:22:04,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-11-12 02:22:04,966 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1342 transitions. [2023-11-12 02:22:04,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:22:04,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:04,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:04,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (6)] Ended with exit code 0 [2023-11-12 02:22:05,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:05,179 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr525REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:22:05,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:05,179 INFO L85 PathProgramCache]: Analyzing trace with hash -748709626, now seen corresponding path program 1 times [2023-11-12 02:22:05,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:05,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537205153] [2023-11-12 02:22:05,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:05,180 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 [2023-11-12 02:22:05,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:05,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:22:05,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (7)] Waiting until timeout for monitored process [2023-11-12 02:22:05,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:05,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 02:22:05,359 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:05,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:05,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:05,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:05,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537205153] [2023-11-12 02:22:05,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1537205153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:05,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:05,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:22:05,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250645197] [2023-11-12 02:22:05,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:05,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:05,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:05,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:05,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:05,466 INFO L87 Difference]: Start difference. First operand 1232 states and 1342 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-12 02:22:06,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:06,571 INFO L93 Difference]: Finished difference Result 1884 states and 2038 transitions. [2023-11-12 02:22:06,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:22:06,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2023-11-12 02:22:06,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:06,581 INFO L225 Difference]: With dead ends: 1884 [2023-11-12 02:22:06,581 INFO L226 Difference]: Without dead ends: 1884 [2023-11-12 02:22:06,581 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:06,582 INFO L413 NwaCegarLoop]: 1405 mSDtfsCounter, 760 mSDsluCounter, 2371 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 3776 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:06,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 3776 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-12 02:22:06,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2023-11-12 02:22:06,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1481. [2023-11-12 02:22:06,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 918 states have (on average 1.9477124183006536) internal successors, (1788), 1474 states have internal predecessors, (1788), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:22:06,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 1806 transitions. [2023-11-12 02:22:06,624 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 1806 transitions. Word has length 11 [2023-11-12 02:22:06,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:06,625 INFO L495 AbstractCegarLoop]: Abstraction has 1481 states and 1806 transitions. [2023-11-12 02:22:06,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2023-11-12 02:22:06,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 1806 transitions. [2023-11-12 02:22:06,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 02:22:06,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:06,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:06,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:06,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:06,838 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:22:06,839 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:06,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1459496966, now seen corresponding path program 1 times [2023-11-12 02:22:06,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:06,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512953688] [2023-11-12 02:22:06,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:06,840 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 [2023-11-12 02:22:06,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:06,841 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:22:06,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (8)] Waiting until timeout for monitored process [2023-11-12 02:22:07,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:07,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:22:07,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:07,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:07,040 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:07,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:07,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512953688] [2023-11-12 02:22:07,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512953688] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:07,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:07,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:22:07,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715722837] [2023-11-12 02:22:07,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:07,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:22:07,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:07,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:22:07,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:22:07,043 INFO L87 Difference]: Start difference. First operand 1481 states and 1806 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-12 02:22:07,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:07,083 INFO L93 Difference]: Finished difference Result 1421 states and 1720 transitions. [2023-11-12 02:22:07,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:22:07,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2023-11-12 02:22:07,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:07,091 INFO L225 Difference]: With dead ends: 1421 [2023-11-12 02:22:07,091 INFO L226 Difference]: Without dead ends: 1421 [2023-11-12 02:22:07,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:22:07,093 INFO L413 NwaCegarLoop]: 1213 mSDtfsCounter, 81 mSDsluCounter, 1141 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:07,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 2354 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2023-11-12 02:22:07,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1421. [2023-11-12 02:22:07,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 882 states have (on average 1.9297052154195011) internal successors, (1702), 1414 states have internal predecessors, (1702), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:22:07,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 1720 transitions. [2023-11-12 02:22:07,156 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 1720 transitions. Word has length 13 [2023-11-12 02:22:07,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:07,157 INFO L495 AbstractCegarLoop]: Abstraction has 1421 states and 1720 transitions. [2023-11-12 02:22:07,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-11-12 02:22:07,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 1720 transitions. [2023-11-12 02:22:07,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:22:07,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:07,159 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:07,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (8)] Ended with exit code 0 [2023-11-12 02:22:07,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:07,371 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr365REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:22:07,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:07,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1877695967, now seen corresponding path program 1 times [2023-11-12 02:22:07,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:07,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717797136] [2023-11-12 02:22:07,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:07,373 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 [2023-11-12 02:22:07,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:07,374 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:22:07,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (9)] Waiting until timeout for monitored process [2023-11-12 02:22:07,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:07,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:22:07,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:07,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:07,574 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:07,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:07,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717797136] [2023-11-12 02:22:07,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717797136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:07,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:07,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:22:07,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408190283] [2023-11-12 02:22:07,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:07,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:07,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:07,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:07,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:07,582 INFO L87 Difference]: Start difference. First operand 1421 states and 1720 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-12 02:22:07,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:07,679 INFO L93 Difference]: Finished difference Result 1393 states and 1664 transitions. [2023-11-12 02:22:07,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:07,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2023-11-12 02:22:07,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:07,686 INFO L225 Difference]: With dead ends: 1393 [2023-11-12 02:22:07,686 INFO L226 Difference]: Without dead ends: 1393 [2023-11-12 02:22:07,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:07,687 INFO L413 NwaCegarLoop]: 1168 mSDtfsCounter, 62 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3470 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:07,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3470 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:07,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2023-11-12 02:22:07,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1391. [2023-11-12 02:22:07,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1391 states, 866 states have (on average 1.8983833718244805) internal successors, (1644), 1384 states have internal predecessors, (1644), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:22:07,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1391 states to 1391 states and 1662 transitions. [2023-11-12 02:22:07,721 INFO L78 Accepts]: Start accepts. Automaton has 1391 states and 1662 transitions. Word has length 15 [2023-11-12 02:22:07,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:07,722 INFO L495 AbstractCegarLoop]: Abstraction has 1391 states and 1662 transitions. [2023-11-12 02:22:07,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2023-11-12 02:22:07,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1391 states and 1662 transitions. [2023-11-12 02:22:07,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 02:22:07,723 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:07,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:07,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:07,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:07,935 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr636ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:22:07,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:07,935 INFO L85 PathProgramCache]: Analyzing trace with hash -660461002, now seen corresponding path program 1 times [2023-11-12 02:22:07,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:07,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1237466929] [2023-11-12 02:22:07,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:07,936 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 [2023-11-12 02:22:07,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:07,937 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:22:07,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (10)] Waiting until timeout for monitored process [2023-11-12 02:22:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:08,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:22:08,159 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:08,170 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:22:08,171 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:22:08,171 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 02:22:08,179 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 39 [2023-11-12 02:22:08,255 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:22:08,256 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-12 02:22:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:08,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:08,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:08,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1237466929] [2023-11-12 02:22:08,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1237466929] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:08,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:08,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:22:08,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283652609] [2023-11-12 02:22:08,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:08,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:08,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:08,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:08,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:08,288 INFO L87 Difference]: Start difference. First operand 1391 states and 1662 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-12 02:22:10,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:10,093 INFO L93 Difference]: Finished difference Result 1850 states and 2192 transitions. [2023-11-12 02:22:10,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:10,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2023-11-12 02:22:10,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:10,101 INFO L225 Difference]: With dead ends: 1850 [2023-11-12 02:22:10,101 INFO L226 Difference]: Without dead ends: 1850 [2023-11-12 02:22:10,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:10,102 INFO L413 NwaCegarLoop]: 1151 mSDtfsCounter, 448 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 3333 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:10,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 3333 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-12 02:22:10,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2023-11-12 02:22:10,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1390. [2023-11-12 02:22:10,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 865 states have (on average 1.8982658959537573) internal successors, (1642), 1383 states have internal predecessors, (1642), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:22:10,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1660 transitions. [2023-11-12 02:22:10,140 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1660 transitions. Word has length 16 [2023-11-12 02:22:10,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:10,140 INFO L495 AbstractCegarLoop]: Abstraction has 1390 states and 1660 transitions. [2023-11-12 02:22:10,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-11-12 02:22:10,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1660 transitions. [2023-11-12 02:22:10,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 02:22:10,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:10,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:10,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:10,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:10,355 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:22:10,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:10,355 INFO L85 PathProgramCache]: Analyzing trace with hash -168464001, now seen corresponding path program 1 times [2023-11-12 02:22:10,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:10,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041322961] [2023-11-12 02:22:10,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:10,356 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 [2023-11-12 02:22:10,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:10,358 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:22:10,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (11)] Waiting until timeout for monitored process [2023-11-12 02:22:10,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:10,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:22:10,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:10,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:10,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:10,578 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:10,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041322961] [2023-11-12 02:22:10,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041322961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:10,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:10,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:22:10,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848869817] [2023-11-12 02:22:10,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:10,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:22:10,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:10,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:22:10,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:22:10,580 INFO L87 Difference]: Start difference. First operand 1390 states and 1660 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-12 02:22:10,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:10,612 INFO L93 Difference]: Finished difference Result 1330 states and 1574 transitions. [2023-11-12 02:22:10,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:22:10,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2023-11-12 02:22:10,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:10,618 INFO L225 Difference]: With dead ends: 1330 [2023-11-12 02:22:10,618 INFO L226 Difference]: Without dead ends: 1330 [2023-11-12 02:22:10,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:22:10,619 INFO L413 NwaCegarLoop]: 1135 mSDtfsCounter, 81 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2198 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:10,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 2198 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:22:10,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1330 states. [2023-11-12 02:22:10,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1330 to 1330. [2023-11-12 02:22:10,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1330 states, 829 states have (on average 1.8769601930036188) internal successors, (1556), 1323 states have internal predecessors, (1556), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:22:10,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1330 states to 1330 states and 1574 transitions. [2023-11-12 02:22:10,646 INFO L78 Accepts]: Start accepts. Automaton has 1330 states and 1574 transitions. Word has length 18 [2023-11-12 02:22:10,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:10,647 INFO L495 AbstractCegarLoop]: Abstraction has 1330 states and 1574 transitions. [2023-11-12 02:22:10,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2023-11-12 02:22:10,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1330 states and 1574 transitions. [2023-11-12 02:22:10,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:22:10,648 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:10,648 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:10,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:10,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:10,861 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:22:10,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:10,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1314847992, now seen corresponding path program 1 times [2023-11-12 02:22:10,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:10,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612913770] [2023-11-12 02:22:10,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:10,863 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 [2023-11-12 02:22:10,863 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:10,864 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:22:10,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (12)] Waiting until timeout for monitored process [2023-11-12 02:22:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:11,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:22:11,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:11,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:11,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:11,108 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:11,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612913770] [2023-11-12 02:22:11,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612913770] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:11,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:11,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:22:11,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241994265] [2023-11-12 02:22:11,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:11,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:11,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:11,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:11,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:11,122 INFO L87 Difference]: Start difference. First operand 1330 states and 1574 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-12 02:22:11,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:11,201 INFO L93 Difference]: Finished difference Result 1302 states and 1518 transitions. [2023-11-12 02:22:11,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:11,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2023-11-12 02:22:11,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:11,206 INFO L225 Difference]: With dead ends: 1302 [2023-11-12 02:22:11,207 INFO L226 Difference]: Without dead ends: 1302 [2023-11-12 02:22:11,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:11,208 INFO L413 NwaCegarLoop]: 1090 mSDtfsCounter, 62 mSDsluCounter, 2146 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:11,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3236 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:22:11,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2023-11-12 02:22:11,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1300. [2023-11-12 02:22:11,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 813 states have (on average 1.8425584255842558) internal successors, (1498), 1293 states have internal predecessors, (1498), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:22:11,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1516 transitions. [2023-11-12 02:22:11,231 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1516 transitions. Word has length 20 [2023-11-12 02:22:11,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:11,231 INFO L495 AbstractCegarLoop]: Abstraction has 1300 states and 1516 transitions. [2023-11-12 02:22:11,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2023-11-12 02:22:11,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1516 transitions. [2023-11-12 02:22:11,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:22:11,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:11,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:11,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (12)] Ended with exit code 0 [2023-11-12 02:22:11,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:11,445 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:22:11,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:11,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1346685766, now seen corresponding path program 1 times [2023-11-12 02:22:11,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:11,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035121243] [2023-11-12 02:22:11,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:11,446 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 [2023-11-12 02:22:11,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:11,447 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:22:11,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (13)] Waiting until timeout for monitored process [2023-11-12 02:22:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:11,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:22:11,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:11,660 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 [2023-11-12 02:22:11,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:11,766 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:11,767 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:11,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035121243] [2023-11-12 02:22:11,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035121243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:11,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:11,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:22:11,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434721968] [2023-11-12 02:22:11,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:11,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:11,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:11,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:11,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:11,769 INFO L87 Difference]: Start difference. First operand 1300 states and 1516 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-12 02:22:15,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:22:15,082 INFO L93 Difference]: Finished difference Result 1689 states and 2019 transitions. [2023-11-12 02:22:15,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:22:15,084 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2023-11-12 02:22:15,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:22:15,092 INFO L225 Difference]: With dead ends: 1689 [2023-11-12 02:22:15,092 INFO L226 Difference]: Without dead ends: 1689 [2023-11-12 02:22:15,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:22:15,093 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 843 mSDsluCounter, 839 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1537 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:22:15,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1537 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-12 02:22:15,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2023-11-12 02:22:15,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1296. [2023-11-12 02:22:15,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1296 states, 813 states have (on average 1.8327183271832719) internal successors, (1490), 1289 states have internal predecessors, (1490), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 02:22:15,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1296 states to 1296 states and 1508 transitions. [2023-11-12 02:22:15,120 INFO L78 Accepts]: Start accepts. Automaton has 1296 states and 1508 transitions. Word has length 34 [2023-11-12 02:22:15,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:22:15,121 INFO L495 AbstractCegarLoop]: Abstraction has 1296 states and 1508 transitions. [2023-11-12 02:22:15,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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) [2023-11-12 02:22:15,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1296 states and 1508 transitions. [2023-11-12 02:22:15,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-12 02:22:15,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:22:15,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:22:15,135 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:22:15,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:22:15,335 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 635 more)] === [2023-11-12 02:22:15,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:22:15,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1346685767, now seen corresponding path program 1 times [2023-11-12 02:22:15,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:22:15,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760183353] [2023-11-12 02:22:15,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:22:15,336 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 [2023-11-12 02:22:15,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:22:15,338 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:22:15,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82af3b48-ef33-4009-af4a-f62736d5e917/bin/uautomizer-verify-uTZkv6EMXl/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 (14)] Waiting until timeout for monitored process [2023-11-12 02:22:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:22:15,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:22:15,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:22:15,564 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 [2023-11-12 02:22:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:22:15,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:22:15,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:22:15,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760183353] [2023-11-12 02:22:15,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760183353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:22:15,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:22:15,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:22:15,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807091256] [2023-11-12 02:22:15,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:22:15,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:22:15,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:22:15,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:22:15,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:22:15,829 INFO L87 Difference]: Start difference. First operand 1296 states and 1508 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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)