./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx --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 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:05:03,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:05:03,243 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-21 22:05:03,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:05:03,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:05:03,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:05:03,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:05:03,291 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:05:03,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:05:03,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:05:03,293 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:05:03,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:05:03,295 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:05:03,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:05:03,296 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:05:03,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:05:03,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:05:03,298 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:05:03,299 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:05:03,299 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:05:03,300 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:05:03,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:05:03,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:05:03,302 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:05:03,303 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:05:03,304 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:05:03,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:05:03,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:05:03,306 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:05:03,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:05:03,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:03,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:05:03,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:05:03,320 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:05:03,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:05:03,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:05:03,321 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:05:03,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:05:03,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:05:03,323 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_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 [2023-11-21 22:05:03,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:05:03,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:05:03,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:05:03,627 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:05:03,628 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:05:03,629 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2023-11-21 22:05:06,896 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:05:07,251 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:05:07,252 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2023-11-21 22:05:07,276 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/data/20f38f60c/492b4dc1133b42cbae36fa822669e6d2/FLAGdb6fcfe93 [2023-11-21 22:05:07,295 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/data/20f38f60c/492b4dc1133b42cbae36fa822669e6d2 [2023-11-21 22:05:07,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:05:07,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:05:07,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:07,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:05:07,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:05:07,317 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:07" (1/1) ... [2023-11-21 22:05:07,318 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a6ab55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:07, skipping insertion in model container [2023-11-21 22:05:07,319 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:07" (1/1) ... [2023-11-21 22:05:07,390 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:05:08,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:08,197 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) [2023-11-21 22:05:08,198 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2d22701e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:08, skipping insertion in model container [2023-11-21 22:05:08,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:08,199 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 22:05:08,201 INFO L158 Benchmark]: Toolchain (without parser) took 895.39ms. Allocated memory was 102.8MB in the beginning and 159.4MB in the end (delta: 56.6MB). Free memory was 57.9MB in the beginning and 130.8MB in the end (delta: -72.9MB). Peak memory consumption was 29.1MB. Max. memory is 16.1GB. [2023-11-21 22:05:08,202 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 102.8MB. Free memory was 72.4MB in the beginning and 72.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:05:08,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 892.22ms. Allocated memory was 102.8MB in the beginning and 159.4MB in the end (delta: 56.6MB). Free memory was 57.6MB in the beginning and 130.8MB in the end (delta: -73.2MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2023-11-21 22:05:08,206 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 102.8MB. Free memory was 72.4MB in the beginning and 72.2MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 892.22ms. Allocated memory was 102.8MB in the beginning and 159.4MB in the end (delta: 56.6MB). Free memory was 57.6MB in the beginning and 130.8MB in the end (delta: -73.2MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 716]: 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx --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 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:05:10,876 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:05:11,014 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-21 22:05:11,023 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:05:11,023 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:05:11,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:05:11,074 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:05:11,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:05:11,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:05:11,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:05:11,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:05:11,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:05:11,083 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:05:11,085 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:05:11,086 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:05:11,086 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:05:11,087 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:05:11,087 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:05:11,088 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:05:11,088 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:05:11,089 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:05:11,090 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:05:11,090 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:05:11,091 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:05:11,091 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:05:11,092 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:05:11,092 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:05:11,093 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:05:11,094 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:05:11,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:05:11,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:05:11,096 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:05:11,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:11,097 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:05:11,097 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:05:11,098 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:05:11,098 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:05:11,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:05:11,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:05:11,100 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:05:11,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:05:11,100 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:05:11,101 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_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23c0dee81707c82be8d9645ea65556f17c2a25b7864c310b805b07f657c0bc23 [2023-11-21 22:05:11,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:05:11,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:05:11,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:05:11,593 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:05:11,593 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:05:11,595 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2023-11-21 22:05:14,887 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:05:15,338 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:05:15,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test7-1.i [2023-11-21 22:05:15,362 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/data/b2d4580a5/bb5aacca75c54a8e900e4494af6da792/FLAG194dc5aaa [2023-11-21 22:05:15,378 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/data/b2d4580a5/bb5aacca75c54a8e900e4494af6da792 [2023-11-21 22:05:15,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:05:15,382 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:05:15,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:15,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:05:15,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:05:15,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:15" (1/1) ... [2023-11-21 22:05:15,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8c3aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:15, skipping insertion in model container [2023-11-21 22:05:15,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:15" (1/1) ... [2023-11-21 22:05:15,468 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:05:16,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:16,258 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:05:16,278 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:05:16,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:16,436 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:05:16,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:16,609 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:05:16,618 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:05:16,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16 WrapperNode [2023-11-21 22:05:16,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:16,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:16,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:05:16,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:05:16,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,673 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,776 INFO L138 Inliner]: procedures = 179, calls = 280, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1017 [2023-11-21 22:05:16,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:16,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:05:16,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:05:16,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:05:16,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,906 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,918 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:05:16,929 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:05:16,929 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:05:16,929 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:05:16,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:16,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:05:16,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:05:16,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:05:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-21 22:05:17,026 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-21 22:05:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 22:05:17,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 22:05:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:05:17,027 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:05:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:05:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:05:17,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:05:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:05:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 22:05:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:05:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:05:17,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:05:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 22:05:17,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:05:17,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:05:17,251 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:05:17,253 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:05:17,308 WARN L820 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-21 22:05:22,561 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:05:22,854 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:05:22,854 INFO L308 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-21 22:05:22,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:22 BoogieIcfgContainer [2023-11-21 22:05:22,857 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:05:22,860 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:05:22,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:05:22,864 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:05:22,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:05:15" (1/3) ... [2023-11-21 22:05:22,866 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18716861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:22, skipping insertion in model container [2023-11-21 22:05:22,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16" (2/3) ... [2023-11-21 22:05:22,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18716861 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:22, skipping insertion in model container [2023-11-21 22:05:22,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:22" (3/3) ... [2023-11-21 22:05:22,870 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test7-1.i [2023-11-21 22:05:22,907 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:05:22,908 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 529 error locations. [2023-11-21 22:05:22,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:05:22,997 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;@5ea1d2d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:05:22,997 INFO L358 AbstractCegarLoop]: Starting to check reachability of 529 error locations. [2023-11-21 22:05:23,008 INFO L276 IsEmpty]: Start isEmpty. Operand has 951 states, 417 states have (on average 2.5419664268585134) internal successors, (1060), 944 states have internal predecessors, (1060), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-21 22:05:23,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:05:23,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:23,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:05:23,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:23,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:23,026 INFO L85 PathProgramCache]: Analyzing trace with hash 53652, now seen corresponding path program 1 times [2023-11-21 22:05:23,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:23,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139951686] [2023-11-21 22:05:23,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:23,042 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 [2023-11-21 22:05:23,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:23,049 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:23,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:23,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:23,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:05:23,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:23,348 INFO L378 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 [2023-11-21 22:05:23,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:23,362 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:23,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:23,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139951686] [2023-11-21 22:05:23,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139951686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:23,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:23,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:05:23,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571003420] [2023-11-21 22:05:23,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:23,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:05:23,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:23,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:05:23,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:23,405 INFO L87 Difference]: Start difference. First operand has 951 states, 417 states have (on average 2.5419664268585134) internal successors, (1060), 944 states have internal predecessors, (1060), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 22:05:25,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:25,573 INFO L93 Difference]: Finished difference Result 945 states and 1000 transitions. [2023-11-21 22:05:25,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:05:25,576 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-21 22:05:25,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:25,596 INFO L225 Difference]: With dead ends: 945 [2023-11-21 22:05:25,596 INFO L226 Difference]: Without dead ends: 944 [2023-11-21 22:05:25,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:25,602 INFO L413 NwaCegarLoop]: 505 mSDtfsCounter, 876 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:25,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [879 Valid, 552 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-21 22:05:25,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 944 states. [2023-11-21 22:05:25,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 944 to 935. [2023-11-21 22:05:25,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 419 states have (on average 2.3460620525059666) internal successors, (983), 929 states have internal predecessors, (983), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:05:25,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 991 transitions. [2023-11-21 22:05:25,697 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 991 transitions. Word has length 2 [2023-11-21 22:05:25,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:25,698 INFO L495 AbstractCegarLoop]: Abstraction has 935 states and 991 transitions. [2023-11-21 22:05:25,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 22:05:25,698 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 991 transitions. [2023-11-21 22:05:25,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:05:25,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:25,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:05:25,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:05:25,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:25,907 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:25,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:25,907 INFO L85 PathProgramCache]: Analyzing trace with hash 53653, now seen corresponding path program 1 times [2023-11-21 22:05:25,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:25,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098329013] [2023-11-21 22:05:25,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:25,909 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 [2023-11-21 22:05:25,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:25,919 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:25,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:26,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:05:26,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:26,109 INFO L378 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 [2023-11-21 22:05:26,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:26,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:26,124 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:26,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098329013] [2023-11-21 22:05:26,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098329013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:26,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:26,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:05:26,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812081275] [2023-11-21 22:05:26,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:26,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:05:26,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:26,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:05:26,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:26,136 INFO L87 Difference]: Start difference. First operand 935 states and 991 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 22:05:29,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:29,835 INFO L93 Difference]: Finished difference Result 1289 states and 1376 transitions. [2023-11-21 22:05:29,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:05:29,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 2 [2023-11-21 22:05:29,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:29,843 INFO L225 Difference]: With dead ends: 1289 [2023-11-21 22:05:29,843 INFO L226 Difference]: Without dead ends: 1289 [2023-11-21 22:05:29,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:29,845 INFO L413 NwaCegarLoop]: 729 mSDtfsCounter, 383 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:29,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 1190 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-21 22:05:29,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2023-11-21 22:05:29,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1103. [2023-11-21 22:05:29,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 588 states have (on average 2.318027210884354) internal successors, (1363), 1097 states have internal predecessors, (1363), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:05:29,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1371 transitions. [2023-11-21 22:05:29,888 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1371 transitions. Word has length 2 [2023-11-21 22:05:29,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:29,888 INFO L495 AbstractCegarLoop]: Abstraction has 1103 states and 1371 transitions. [2023-11-21 22:05:29,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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) [2023-11-21 22:05:29,889 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1371 transitions. [2023-11-21 22:05:29,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 22:05:29,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:29,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 22:05:29,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:30,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:30,090 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:30,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:30,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1598398080, now seen corresponding path program 1 times [2023-11-21 22:05:30,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:30,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815616203] [2023-11-21 22:05:30,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:30,093 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 [2023-11-21 22:05:30,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:30,094 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:30,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:30,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:05:30,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:30,290 INFO L378 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 [2023-11-21 22:05:30,299 INFO L378 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 [2023-11-21 22:05:30,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:05:30,402 INFO L378 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 [2023-11-21 22:05:30,428 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-21 22:05:30,428 INFO L378 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 [2023-11-21 22:05:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:30,446 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:30,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:30,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [815616203] [2023-11-21 22:05:30,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [815616203] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:30,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:30,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:05:30,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717162854] [2023-11-21 22:05:30,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:30,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:05:30,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:30,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:05:30,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:05:30,454 INFO L87 Difference]: Start difference. First operand 1103 states and 1371 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-21 22:05:33,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:33,635 INFO L93 Difference]: Finished difference Result 1106 states and 1376 transitions. [2023-11-21 22:05:33,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:05:33,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-21 22:05:33,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:33,643 INFO L225 Difference]: With dead ends: 1106 [2023-11-21 22:05:33,643 INFO L226 Difference]: Without dead ends: 1106 [2023-11-21 22:05:33,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:05:33,644 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 1820 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:33,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 270 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-21 22:05:33,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2023-11-21 22:05:33,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 924. [2023-11-21 22:05:33,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 924 states, 419 states have (on average 2.3174224343675416) internal successors, (971), 918 states have internal predecessors, (971), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:05:33,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 924 states to 924 states and 979 transitions. [2023-11-21 22:05:33,672 INFO L78 Accepts]: Start accepts. Automaton has 924 states and 979 transitions. Word has length 5 [2023-11-21 22:05:33,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:33,673 INFO L495 AbstractCegarLoop]: Abstraction has 924 states and 979 transitions. [2023-11-21 22:05:33,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-11-21 22:05:33,673 INFO L276 IsEmpty]: Start isEmpty. Operand 924 states and 979 transitions. [2023-11-21 22:05:33,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:05:33,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:33,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:05:33,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:33,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:33,882 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:33,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:33,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1989267089, now seen corresponding path program 1 times [2023-11-21 22:05:33,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:33,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1785962889] [2023-11-21 22:05:33,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:33,891 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 [2023-11-21 22:05:33,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:33,893 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:33,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:34,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:05:34,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:34,071 INFO L378 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 [2023-11-21 22:05:34,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:34,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:34,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:34,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1785962889] [2023-11-21 22:05:34,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1785962889] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:34,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:34,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:05:34,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460669041] [2023-11-21 22:05:34,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:34,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:05:34,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:34,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:05:34,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:34,108 INFO L87 Difference]: Start difference. First operand 924 states and 979 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-21 22:05:36,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:36,605 INFO L93 Difference]: Finished difference Result 1219 states and 1304 transitions. [2023-11-21 22:05:36,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:05:36,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-21 22:05:36,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:36,614 INFO L225 Difference]: With dead ends: 1219 [2023-11-21 22:05:36,614 INFO L226 Difference]: Without dead ends: 1219 [2023-11-21 22:05:36,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:36,616 INFO L413 NwaCegarLoop]: 748 mSDtfsCounter, 878 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:36,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 955 Invalid, 806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-21 22:05:36,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2023-11-21 22:05:36,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 877. [2023-11-21 22:05:36,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 419 states have (on average 2.2052505966587113) internal successors, (924), 871 states have internal predecessors, (924), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:05:36,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 932 transitions. [2023-11-21 22:05:36,643 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 932 transitions. Word has length 6 [2023-11-21 22:05:36,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:36,644 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 932 transitions. [2023-11-21 22:05:36,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-21 22:05:36,644 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 932 transitions. [2023-11-21 22:05:36,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:05:36,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:36,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:05:36,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:36,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:36,862 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:36,862 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:36,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1989267088, now seen corresponding path program 1 times [2023-11-21 22:05:36,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:36,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090483898] [2023-11-21 22:05:36,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:36,864 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 [2023-11-21 22:05:36,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:36,865 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:36,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:37,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:05:37,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:37,026 INFO L378 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 [2023-11-21 22:05:37,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:37,048 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:37,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:37,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090483898] [2023-11-21 22:05:37,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090483898] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:37,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:37,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:05:37,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950522180] [2023-11-21 22:05:37,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:37,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:05:37,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:37,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:05:37,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:37,051 INFO L87 Difference]: Start difference. First operand 877 states and 932 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-21 22:05:40,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:40,887 INFO L93 Difference]: Finished difference Result 1289 states and 1377 transitions. [2023-11-21 22:05:40,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:05:40,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-21 22:05:40,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:40,898 INFO L225 Difference]: With dead ends: 1289 [2023-11-21 22:05:40,899 INFO L226 Difference]: Without dead ends: 1289 [2023-11-21 22:05:40,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:40,900 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 611 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 798 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:40,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 1253 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 798 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-21 22:05:40,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2023-11-21 22:05:40,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 890. [2023-11-21 22:05:40,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 890 states, 442 states have (on average 2.1968325791855206) internal successors, (971), 884 states have internal predecessors, (971), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:05:40,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 979 transitions. [2023-11-21 22:05:40,925 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 979 transitions. Word has length 6 [2023-11-21 22:05:40,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:40,926 INFO L495 AbstractCegarLoop]: Abstraction has 890 states and 979 transitions. [2023-11-21 22:05:40,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-21 22:05:40,926 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 979 transitions. [2023-11-21 22:05:40,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 22:05:40,927 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:40,927 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:40,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:41,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:41,129 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr527ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:41,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:41,130 INFO L85 PathProgramCache]: Analyzing trace with hash 371921709, now seen corresponding path program 1 times [2023-11-21 22:05:41,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:41,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420377042] [2023-11-21 22:05:41,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:41,131 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 [2023-11-21 22:05:41,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:41,132 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:41,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:41,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:05:41,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:41,332 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:05:41,333 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:05:41,334 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:05:41,340 INFO L378 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 [2023-11-21 22:05:41,415 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:05:41,416 INFO L378 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 [2023-11-21 22:05:41,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:41,437 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:41,437 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:41,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420377042] [2023-11-21 22:05:41,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420377042] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:41,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:41,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:05:41,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672121319] [2023-11-21 22:05:41,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:41,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:05:41,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:41,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:05:41,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:05:41,441 INFO L87 Difference]: Start difference. First operand 890 states and 979 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-21 22:05:43,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:43,723 INFO L93 Difference]: Finished difference Result 1199 states and 1315 transitions. [2023-11-21 22:05:43,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:05:43,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2023-11-21 22:05:43,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:43,730 INFO L225 Difference]: With dead ends: 1199 [2023-11-21 22:05:43,730 INFO L226 Difference]: Without dead ends: 1199 [2023-11-21 22:05:43,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:05:43,731 INFO L413 NwaCegarLoop]: 787 mSDtfsCounter, 327 mSDsluCounter, 1529 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 2316 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:43,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 2316 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-21 22:05:43,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2023-11-21 22:05:43,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 892. [2023-11-21 22:05:43,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 444 states have (on average 2.1914414414414414) internal successors, (973), 886 states have internal predecessors, (973), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:05:43,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 981 transitions. [2023-11-21 22:05:43,755 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 981 transitions. Word has length 10 [2023-11-21 22:05:43,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:43,756 INFO L495 AbstractCegarLoop]: Abstraction has 892 states and 981 transitions. [2023-11-21 22:05:43,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2023-11-21 22:05:43,756 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 981 transitions. [2023-11-21 22:05:43,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 22:05:43,757 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:43,757 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:43,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:43,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:43,961 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:43,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:43,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1314118905, now seen corresponding path program 1 times [2023-11-21 22:05:43,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:43,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906416438] [2023-11-21 22:05:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:43,963 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 [2023-11-21 22:05:43,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:43,964 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:44,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:44,171 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:05:44,173 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:44,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:44,184 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:44,184 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:44,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906416438] [2023-11-21 22:05:44,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906416438] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:44,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:44,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:05:44,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527984960] [2023-11-21 22:05:44,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:44,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:05:44,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:44,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:05:44,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:44,186 INFO L87 Difference]: Start difference. First operand 892 states and 981 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-21 22:05:45,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:45,084 INFO L93 Difference]: Finished difference Result 853 states and 941 transitions. [2023-11-21 22:05:45,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:05:45,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 14 [2023-11-21 22:05:45,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:45,091 INFO L225 Difference]: With dead ends: 853 [2023-11-21 22:05:45,091 INFO L226 Difference]: Without dead ends: 853 [2023-11-21 22:05:45,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:45,092 INFO L413 NwaCegarLoop]: 758 mSDtfsCounter, 69 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:45,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1467 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-21 22:05:45,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2023-11-21 22:05:45,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 853. [2023-11-21 22:05:45,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 853 states, 429 states have (on average 2.174825174825175) internal successors, (933), 847 states have internal predecessors, (933), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:05:45,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 941 transitions. [2023-11-21 22:05:45,114 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 941 transitions. Word has length 14 [2023-11-21 22:05:45,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:45,115 INFO L495 AbstractCegarLoop]: Abstraction has 853 states and 941 transitions. [2023-11-21 22:05:45,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2023-11-21 22:05:45,116 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 941 transitions. [2023-11-21 22:05:45,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 22:05:45,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:45,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:45,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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)] Forceful destruction successful, exit code 0 [2023-11-21 22:05:45,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:45,323 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:45,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:45,323 INFO L85 PathProgramCache]: Analyzing trace with hash -2081346739, now seen corresponding path program 1 times [2023-11-21 22:05:45,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:45,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1881255878] [2023-11-21 22:05:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:45,324 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 [2023-11-21 22:05:45,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:45,325 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:45,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:45,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:05:45,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:45,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:45,569 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:45,569 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:45,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1881255878] [2023-11-21 22:05:45,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1881255878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:45,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:45,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:05:45,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650346083] [2023-11-21 22:05:45,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:45,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:05:45,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:45,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:05:45,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:05:45,571 INFO L87 Difference]: Start difference. First operand 853 states and 941 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) [2023-11-21 22:05:46,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:46,913 INFO L93 Difference]: Finished difference Result 839 states and 920 transitions. [2023-11-21 22:05:46,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:05:46,914 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 [2023-11-21 22:05:46,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:46,918 INFO L225 Difference]: With dead ends: 839 [2023-11-21 22:05:46,918 INFO L226 Difference]: Without dead ends: 839 [2023-11-21 22:05:46,919 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 [2023-11-21 22:05:46,920 INFO L413 NwaCegarLoop]: 727 mSDtfsCounter, 58 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:46,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2157 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-21 22:05:46,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2023-11-21 22:05:46,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 838. [2023-11-21 22:05:46,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 428 states have (on average 2.128504672897196) internal successors, (911), 832 states have internal predecessors, (911), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:05:46,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 919 transitions. [2023-11-21 22:05:46,944 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 919 transitions. Word has length 15 [2023-11-21 22:05:46,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:46,945 INFO L495 AbstractCegarLoop]: Abstraction has 838 states and 919 transitions. [2023-11-21 22:05:46,945 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) [2023-11-21 22:05:46,945 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 919 transitions. [2023-11-21 22:05:46,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:05:46,946 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:46,946 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] [2023-11-21 22:05:46,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:47,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:47,150 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:47,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:47,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1589067557, now seen corresponding path program 1 times [2023-11-21 22:05:47,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:47,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134595736] [2023-11-21 22:05:47,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:47,151 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 [2023-11-21 22:05:47,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:47,152 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:47,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:47,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:05:47,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:47,367 INFO L378 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 [2023-11-21 22:05:47,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:47,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:47,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:47,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134595736] [2023-11-21 22:05:47,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2134595736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:47,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:47,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:05:47,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956249099] [2023-11-21 22:05:47,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:47,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:05:47,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:47,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:05:47,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:05:47,483 INFO L87 Difference]: Start difference. First operand 838 states and 919 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-11-21 22:05:50,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:50,795 INFO L93 Difference]: Finished difference Result 1176 states and 1287 transitions. [2023-11-21 22:05:50,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:05:50,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2023-11-21 22:05:50,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:50,803 INFO L225 Difference]: With dead ends: 1176 [2023-11-21 22:05:50,803 INFO L226 Difference]: Without dead ends: 1176 [2023-11-21 22:05:50,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:05:50,804 INFO L413 NwaCegarLoop]: 390 mSDtfsCounter, 811 mSDsluCounter, 547 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:50,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 937 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-21 22:05:50,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2023-11-21 22:05:50,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 834. [2023-11-21 22:05:50,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 428 states have (on average 2.119158878504673) internal successors, (907), 828 states have internal predecessors, (907), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:05:50,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 915 transitions. [2023-11-21 22:05:50,826 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 915 transitions. Word has length 29 [2023-11-21 22:05:50,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:50,827 INFO L495 AbstractCegarLoop]: Abstraction has 834 states and 915 transitions. [2023-11-21 22:05:50,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-11-21 22:05:50,827 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 915 transitions. [2023-11-21 22:05:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:05:50,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:50,828 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] [2023-11-21 22:05:50,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:51,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:51,032 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:51,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:51,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1589067556, now seen corresponding path program 1 times [2023-11-21 22:05:51,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:51,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [174070818] [2023-11-21 22:05:51,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:51,039 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 [2023-11-21 22:05:51,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:51,040 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:51,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:51,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:51,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:05:51,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:51,303 INFO L378 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 [2023-11-21 22:05:51,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:51,525 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:51,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:51,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [174070818] [2023-11-21 22:05:51,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [174070818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:51,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:51,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:05:51,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067152524] [2023-11-21 22:05:51,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:51,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:05:51,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:51,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:05:51,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:05:51,527 INFO L87 Difference]: Start difference. First operand 834 states and 915 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-11-21 22:05:55,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:55,682 INFO L93 Difference]: Finished difference Result 1229 states and 1309 transitions. [2023-11-21 22:05:55,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:05:55,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2023-11-21 22:05:55,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:55,690 INFO L225 Difference]: With dead ends: 1229 [2023-11-21 22:05:55,691 INFO L226 Difference]: Without dead ends: 1229 [2023-11-21 22:05:55,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:05:55,692 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 546 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:55,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1230 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-21 22:05:55,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2023-11-21 22:05:55,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 830. [2023-11-21 22:05:55,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 428 states have (on average 2.1098130841121496) internal successors, (903), 824 states have internal predecessors, (903), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:05:55,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 911 transitions. [2023-11-21 22:05:55,714 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 911 transitions. Word has length 29 [2023-11-21 22:05:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:55,714 INFO L495 AbstractCegarLoop]: Abstraction has 830 states and 911 transitions. [2023-11-21 22:05:55,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2023-11-21 22:05:55,715 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 911 transitions. [2023-11-21 22:05:55,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-21 22:05:55,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:55,717 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:55,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:55,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:55,920 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:55,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:55,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1735206571, now seen corresponding path program 1 times [2023-11-21 22:05:55,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:55,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [978361015] [2023-11-21 22:05:55,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:55,922 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 [2023-11-21 22:05:55,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:55,924 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:55,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:56,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:05:56,207 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:56,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:56,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:56,282 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:56,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [978361015] [2023-11-21 22:05:56,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [978361015] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:56,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:56,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:05:56,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496558260] [2023-11-21 22:05:56,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:56,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:05:56,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:56,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:05:56,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:05:56,284 INFO L87 Difference]: Start difference. First operand 830 states and 911 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2023-11-21 22:05:57,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:05:57,494 INFO L93 Difference]: Finished difference Result 824 states and 901 transitions. [2023-11-21 22:05:57,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:05:57,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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 45 [2023-11-21 22:05:57,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:05:57,499 INFO L225 Difference]: With dead ends: 824 [2023-11-21 22:05:57,499 INFO L226 Difference]: Without dead ends: 824 [2023-11-21 22:05:57,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:05:57,500 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 23 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:05:57,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2143 Invalid, 323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-21 22:05:57,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2023-11-21 22:05:57,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2023-11-21 22:05:57,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 422 states have (on average 2.1161137440758293) internal successors, (893), 818 states have internal predecessors, (893), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-21 22:05:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 901 transitions. [2023-11-21 22:05:57,517 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 901 transitions. Word has length 45 [2023-11-21 22:05:57,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:05:57,518 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 901 transitions. [2023-11-21 22:05:57,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2023-11-21 22:05:57,518 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 901 transitions. [2023-11-21 22:05:57,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-21 22:05:57,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:05:57,520 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:05:57,529 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:57,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:57,724 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr117REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 526 more)] === [2023-11-21 22:05:57,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:57,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1635666538, now seen corresponding path program 1 times [2023-11-21 22:05:57,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:05:57,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788909418] [2023-11-21 22:05:57,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:57,725 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 [2023-11-21 22:05:57,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:05:57,726 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:05:57,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd66d44e-d7a7-4db7-bd38-5d9c1ca63a9d/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:05:58,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:58,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:05:58,034 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:58,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:58,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:58,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:05:58,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788909418] [2023-11-21 22:05:58,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788909418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:58,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:58,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:05:58,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156192279] [2023-11-21 22:05:58,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:58,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:05:58,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:05:58,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:05:58,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:58,342 INFO L87 Difference]: Start difference. First operand 824 states and 901 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 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)