./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:27:52,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:27:52,838 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-21 22:27:52,844 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:27:52,845 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:27:52,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:27:52,889 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:27:52,890 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:27:52,891 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:27:52,891 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:27:52,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:27:52,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:27:52,893 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:27:52,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:27:52,895 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:27:52,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:27:52,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:27:52,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:27:52,897 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:27:52,897 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:27:52,898 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:27:52,898 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:27:52,899 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:27:52,899 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:27:52,900 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:27:52,900 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:27:52,901 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:27:52,901 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:27:52,902 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:27:52,902 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:27:52,902 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:27:52,903 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:27:52,903 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:27:52,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:27:52,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:27:52,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:27:52,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:27:52,925 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:27:52,925 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:27:52,926 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_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 [2023-11-21 22:27:53,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:27:53,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:27:53,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:27:53,247 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:27:53,247 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:27:53,249 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2023-11-21 22:27:56,225 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:27:56,591 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:27:56,592 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2023-11-21 22:27:56,650 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/data/3c589dc19/0adddb3d5e044c4f942a8ff674bd4b8d/FLAG73b6e0ec1 [2023-11-21 22:27:56,665 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/data/3c589dc19/0adddb3d5e044c4f942a8ff674bd4b8d [2023-11-21 22:27:56,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:27:56,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:27:56,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:27:56,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:27:56,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:27:56,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:27:56" (1/1) ... [2023-11-21 22:27:56,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44f39d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:56, skipping insertion in model container [2023-11-21 22:27:56,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:27:56" (1/1) ... [2023-11-21 22:27:56,766 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:27:57,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:27:57,439 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 22:27:57,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6c125e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:27:57, skipping insertion in model container [2023-11-21 22:27:57,441 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:27:57,441 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 22:27:57,444 INFO L158 Benchmark]: Toolchain (without parser) took 772.90ms. Allocated memory is still 188.7MB. Free memory was 158.3MB in the beginning and 137.4MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:27:57,444 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 130.0MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:27:57,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 770.45ms. Allocated memory is still 188.7MB. Free memory was 157.4MB in the beginning and 137.4MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:27:57,447 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 130.0MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 770.45ms. Allocated memory is still 188.7MB. Free memory was 157.4MB in the beginning and 137.4MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:27:59,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:28:00,054 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-21 22:28:00,065 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:28:00,068 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:28:00,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:28:00,120 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:28:00,121 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:28:00,122 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:28:00,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:28:00,128 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:28:00,128 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:28:00,129 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:28:00,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:28:00,131 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:28:00,131 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:28:00,132 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:28:00,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:28:00,133 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:28:00,134 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:28:00,134 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:28:00,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:28:00,135 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:28:00,136 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:28:00,136 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:28:00,137 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:28:00,137 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:28:00,137 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:28:00,138 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:28:00,139 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:28:00,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:28:00,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:28:00,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:00,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:28:00,142 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:28:00,142 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:28:00,142 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:28:00,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:28:00,143 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:28:00,144 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:28:00,144 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:28:00,144 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:28:00,145 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_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 99f48cdcb9a25adc64e4307e90599f4e37a0b97f677ff29ab3d60f24a1c8e980 [2023-11-21 22:28:00,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:28:00,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:28:00,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:28:00,602 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:28:00,603 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:28:00,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2023-11-21 22:28:03,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:28:04,226 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:28:04,227 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-2.i [2023-11-21 22:28:04,247 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/data/9002887f1/8c6cc971e340481cabcfa58214b64d58/FLAGb953a8318 [2023-11-21 22:28:04,267 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/data/9002887f1/8c6cc971e340481cabcfa58214b64d58 [2023-11-21 22:28:04,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:28:04,275 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:28:04,276 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:04,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:28:04,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:28:04,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:04" (1/1) ... [2023-11-21 22:28:04,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46fe4d0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:04, skipping insertion in model container [2023-11-21 22:28:04,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:04" (1/1) ... [2023-11-21 22:28:04,397 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:28:05,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:05,162 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:28:05,190 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:28:05,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:05,321 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:28:05,391 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:05,456 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:28:05,464 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:28:05,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05 WrapperNode [2023-11-21 22:28:05,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:05,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:05,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:28:05,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:28:05,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (1/1) ... [2023-11-21 22:28:05,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (1/1) ... [2023-11-21 22:28:05,640 INFO L138 Inliner]: procedures = 179, calls = 331, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1184 [2023-11-21 22:28:05,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:05,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:28:05,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:28:05,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:28:05,652 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (1/1) ... [2023-11-21 22:28:05,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (1/1) ... [2023-11-21 22:28:05,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (1/1) ... [2023-11-21 22:28:05,669 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (1/1) ... [2023-11-21 22:28:05,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (1/1) ... [2023-11-21 22:28:05,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (1/1) ... [2023-11-21 22:28:05,758 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (1/1) ... [2023-11-21 22:28:05,765 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (1/1) ... [2023-11-21 22:28:05,779 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:28:05,780 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:28:05,780 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:28:05,780 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:28:05,781 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (1/1) ... [2023-11-21 22:28:05,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:05,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:05,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:28:05,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:28:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-21 22:28:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-21 22:28:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 22:28:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 22:28:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:28:05,867 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:28:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:28:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:28:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:28:05,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:28:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-21 22:28:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:28:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:28:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:28:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 22:28:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:28:05,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:28:06,144 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:28:06,147 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:28:06,170 WARN L820 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-21 22:28:11,642 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:28:11,919 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:28:11,919 INFO L308 CfgBuilder]: Removed 72 assume(true) statements. [2023-11-21 22:28:11,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:11 BoogieIcfgContainer [2023-11-21 22:28:11,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:28:11,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:28:11,925 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:28:11,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:28:11,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:28:04" (1/3) ... [2023-11-21 22:28:11,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce29c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:28:11, skipping insertion in model container [2023-11-21 22:28:11,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:05" (2/3) ... [2023-11-21 22:28:11,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce29c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:28:11, skipping insertion in model container [2023-11-21 22:28:11,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:11" (3/3) ... [2023-11-21 22:28:11,931 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test7-2.i [2023-11-21 22:28:11,950 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:28:11,951 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 634 error locations. [2023-11-21 22:28:12,015 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:28:12,022 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;@21d20b09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:28:12,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 634 error locations. [2023-11-21 22:28:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand has 1133 states, 494 states have (on average 2.5526315789473686) internal successors, (1261), 1126 states have internal predecessors, (1261), 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 22:28:12,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:28:12,037 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:12,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:28:12,038 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-21 22:28:12,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:12,043 INFO L85 PathProgramCache]: Analyzing trace with hash 62053, now seen corresponding path program 1 times [2023-11-21 22:28:12,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:28:12,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52893892] [2023-11-21 22:28:12,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:12,057 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 22:28:12,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:28:12,062 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:12,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:12,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:28:12,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:12,305 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 22:28:12,318 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 22:28:12,318 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:12,319 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:28:12,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52893892] [2023-11-21 22:28:12,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52893892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:12,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:12,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:28:12,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949072048] [2023-11-21 22:28:12,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:12,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:28:12,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:28:12,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:28:12,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:12,382 INFO L87 Difference]: Start difference. First operand has 1133 states, 494 states have (on average 2.5526315789473686) internal successors, (1261), 1126 states have internal predecessors, (1261), 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 22:28:15,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:15,185 INFO L93 Difference]: Finished difference Result 1290 states and 1365 transitions. [2023-11-21 22:28:15,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:15,188 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 22:28:15,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:15,211 INFO L225 Difference]: With dead ends: 1290 [2023-11-21 22:28:15,211 INFO L226 Difference]: Without dead ends: 1289 [2023-11-21 22:28:15,212 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 22:28:15,216 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 1052 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:15,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1055 Valid, 740 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-11-21 22:28:15,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2023-11-21 22:28:15,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1117. [2023-11-21 22:28:15,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 496 states have (on average 2.370967741935484) internal successors, (1176), 1111 states have internal predecessors, (1176), 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 22:28:15,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1184 transitions. [2023-11-21 22:28:15,341 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1184 transitions. Word has length 2 [2023-11-21 22:28:15,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:15,342 INFO L495 AbstractCegarLoop]: Abstraction has 1117 states and 1184 transitions. [2023-11-21 22:28:15,342 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 22:28:15,344 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1184 transitions. [2023-11-21 22:28:15,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:28:15,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:15,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:28:15,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:15,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:15,552 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-21 22:28:15,552 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:15,552 INFO L85 PathProgramCache]: Analyzing trace with hash 62054, now seen corresponding path program 1 times [2023-11-21 22:28:15,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:28:15,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [342475748] [2023-11-21 22:28:15,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:15,553 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 22:28:15,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:28:15,555 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:15,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:15,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:28:15,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:15,694 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 22:28:15,708 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 22:28:15,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:15,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:28:15,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [342475748] [2023-11-21 22:28:15,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [342475748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:15,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:15,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:28:15,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752333106] [2023-11-21 22:28:15,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:15,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:28:15,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:28:15,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:28:15,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:15,719 INFO L87 Difference]: Start difference. First operand 1117 states and 1184 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 22:28:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:20,373 INFO L93 Difference]: Finished difference Result 1653 states and 1762 transitions. [2023-11-21 22:28:20,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:20,373 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 22:28:20,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:20,383 INFO L225 Difference]: With dead ends: 1653 [2023-11-21 22:28:20,383 INFO L226 Difference]: Without dead ends: 1653 [2023-11-21 22:28:20,384 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 22:28:20,385 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 576 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 1380 SdHoareTripleChecker+Invalid, 971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:20,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 1380 Invalid, 971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-21 22:28:20,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2023-11-21 22:28:20,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1285. [2023-11-21 22:28:20,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 665 states have (on average 2.3398496240601503) internal successors, (1556), 1279 states have internal predecessors, (1556), 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 22:28:20,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1564 transitions. [2023-11-21 22:28:20,449 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1564 transitions. Word has length 2 [2023-11-21 22:28:20,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:20,450 INFO L495 AbstractCegarLoop]: Abstraction has 1285 states and 1564 transitions. [2023-11-21 22:28:20,450 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 22:28:20,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1564 transitions. [2023-11-21 22:28:20,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 22:28:20,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:20,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-21 22:28:20,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:20,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:20,653 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-21 22:28:20,654 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:20,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1848682098, now seen corresponding path program 1 times [2023-11-21 22:28:20,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:28:20,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1235299183] [2023-11-21 22:28:20,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:20,656 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 22:28:20,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:28:20,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:20,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:20,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:28:20,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:20,883 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 22:28:20,893 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 22:28:20,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:28:20,997 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 22:28:21,023 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-21 22:28:21,023 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 22:28:21,038 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 22:28:21,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:21,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:28:21,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1235299183] [2023-11-21 22:28:21,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1235299183] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:21,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:21,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:28:21,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494188604] [2023-11-21 22:28:21,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:21,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:28:21,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:28:21,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:28:21,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:21,045 INFO L87 Difference]: Start difference. First operand 1285 states and 1564 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 22:28:25,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:25,416 INFO L93 Difference]: Finished difference Result 1451 states and 1741 transitions. [2023-11-21 22:28:25,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:28:25,417 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 22:28:25,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:25,425 INFO L225 Difference]: With dead ends: 1451 [2023-11-21 22:28:25,425 INFO L226 Difference]: Without dead ends: 1451 [2023-11-21 22:28:25,426 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 22:28:25,427 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1324 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1327 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:25,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1327 Valid, 365 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-11-21 22:28:25,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2023-11-21 22:28:25,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1106. [2023-11-21 22:28:25,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 496 states have (on average 2.346774193548387) internal successors, (1164), 1100 states have internal predecessors, (1164), 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 22:28:25,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1172 transitions. [2023-11-21 22:28:25,459 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1172 transitions. Word has length 5 [2023-11-21 22:28:25,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:25,460 INFO L495 AbstractCegarLoop]: Abstraction has 1106 states and 1172 transitions. [2023-11-21 22:28:25,460 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 22:28:25,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1172 transitions. [2023-11-21 22:28:25,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:28:25,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:25,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:28:25,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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)] Ended with exit code 0 [2023-11-21 22:28:25,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:25,664 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-21 22:28:25,664 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:25,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1474570173, now seen corresponding path program 1 times [2023-11-21 22:28:25,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:28:25,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512391964] [2023-11-21 22:28:25,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:25,666 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 22:28:25,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:28:25,667 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:25,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:25,853 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:28:25,856 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:25,862 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 22:28:25,874 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 22:28:25,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:25,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:28:25,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512391964] [2023-11-21 22:28:25,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512391964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:25,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:25,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:28:25,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731741309] [2023-11-21 22:28:25,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:25,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:28:25,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:28:25,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:28:25,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:25,877 INFO L87 Difference]: Start difference. First operand 1106 states and 1172 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 22:28:28,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:28,774 INFO L93 Difference]: Finished difference Result 1401 states and 1497 transitions. [2023-11-21 22:28:28,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:28,776 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 22:28:28,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:28,782 INFO L225 Difference]: With dead ends: 1401 [2023-11-21 22:28:28,782 INFO L226 Difference]: Without dead ends: 1401 [2023-11-21 22:28:28,783 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 22:28:28,784 INFO L413 NwaCegarLoop]: 922 mSDtfsCounter, 878 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:28,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1215 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-21 22:28:28,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1401 states. [2023-11-21 22:28:28,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1401 to 1059. [2023-11-21 22:28:28,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 496 states have (on average 2.252016129032258) internal successors, (1117), 1053 states have internal predecessors, (1117), 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 22:28:28,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1125 transitions. [2023-11-21 22:28:28,813 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1125 transitions. Word has length 6 [2023-11-21 22:28:28,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:28,814 INFO L495 AbstractCegarLoop]: Abstraction has 1059 states and 1125 transitions. [2023-11-21 22:28:28,814 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 22:28:28,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1125 transitions. [2023-11-21 22:28:28,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:28:28,815 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:28,815 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 22:28:28,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:29,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:29,019 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-21 22:28:29,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:29,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1474570174, now seen corresponding path program 1 times [2023-11-21 22:28:29,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:28:29,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [111495783] [2023-11-21 22:28:29,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:29,020 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 22:28:29,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:28:29,022 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:29,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:29,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:28:29,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:29,197 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 22:28:29,220 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 22:28:29,220 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:29,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:28:29,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [111495783] [2023-11-21 22:28:29,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [111495783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:29,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:29,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:28:29,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912046211] [2023-11-21 22:28:29,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:29,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:28:29,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:28:29,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:28:29,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:29,229 INFO L87 Difference]: Start difference. First operand 1059 states and 1125 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 22:28:33,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:33,190 INFO L93 Difference]: Finished difference Result 1471 states and 1570 transitions. [2023-11-21 22:28:33,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:33,195 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 22:28:33,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:33,205 INFO L225 Difference]: With dead ends: 1471 [2023-11-21 22:28:33,205 INFO L226 Difference]: Without dead ends: 1471 [2023-11-21 22:28:33,206 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 22:28:33,207 INFO L413 NwaCegarLoop]: 1093 mSDtfsCounter, 611 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 922 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 611 SdHoareTripleChecker+Valid, 1515 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:33,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [611 Valid, 1515 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 922 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-21 22:28:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2023-11-21 22:28:33,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1072. [2023-11-21 22:28:33,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 519 states have (on average 2.2427745664739884) internal successors, (1164), 1066 states have internal predecessors, (1164), 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 22:28:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1172 transitions. [2023-11-21 22:28:33,239 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1172 transitions. Word has length 6 [2023-11-21 22:28:33,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:33,239 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1172 transitions. [2023-11-21 22:28:33,240 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 22:28:33,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1172 transitions. [2023-11-21 22:28:33,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 22:28:33,241 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:33,241 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:33,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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)] Forceful destruction successful, exit code 0 [2023-11-21 22:28:33,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:33,449 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-21 22:28:33,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:33,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1552491098, now seen corresponding path program 1 times [2023-11-21 22:28:33,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:28:33,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081885752] [2023-11-21 22:28:33,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:33,451 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 22:28:33,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:28:33,452 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:33,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:33,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:33,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:28:33,642 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:33,741 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 22:28:33,741 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:33,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:28:33,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081885752] [2023-11-21 22:28:33,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081885752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:33,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:33,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:28:33,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142295901] [2023-11-21 22:28:33,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:33,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:28:33,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:28:33,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:28:33,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:33,744 INFO L87 Difference]: Start difference. First operand 1072 states and 1172 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:28:36,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:36,566 INFO L93 Difference]: Finished difference Result 1656 states and 1800 transitions. [2023-11-21 22:28:36,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:28:36,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-21 22:28:36,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:36,577 INFO L225 Difference]: With dead ends: 1656 [2023-11-21 22:28:36,577 INFO L226 Difference]: Without dead ends: 1656 [2023-11-21 22:28:36,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 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 22:28:36,579 INFO L413 NwaCegarLoop]: 1079 mSDtfsCounter, 681 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 2882 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:36,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 2882 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-21 22:28:36,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2023-11-21 22:28:36,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1272. [2023-11-21 22:28:36,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1272 states, 719 states have (on average 2.196105702364395) internal successors, (1579), 1266 states have internal predecessors, (1579), 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 22:28:36,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1272 states to 1272 states and 1587 transitions. [2023-11-21 22:28:36,614 INFO L78 Accepts]: Start accepts. Automaton has 1272 states and 1587 transitions. Word has length 12 [2023-11-21 22:28:36,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:36,615 INFO L495 AbstractCegarLoop]: Abstraction has 1272 states and 1587 transitions. [2023-11-21 22:28:36,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:28:36,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1272 states and 1587 transitions. [2023-11-21 22:28:36,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 22:28:36,616 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:36,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:36,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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)] Ended with exit code 0 [2023-11-21 22:28:36,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:36,819 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-21 22:28:36,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:36,820 INFO L85 PathProgramCache]: Analyzing trace with hash 966171000, now seen corresponding path program 1 times [2023-11-21 22:28:36,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:28:36,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1723654108] [2023-11-21 22:28:36,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:36,821 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 22:28:36,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:28:36,822 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:36,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:36,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:28:36,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:37,008 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 22:28:37,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:37,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:28:37,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1723654108] [2023-11-21 22:28:37,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1723654108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:37,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:37,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:28:37,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865780932] [2023-11-21 22:28:37,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:37,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:28:37,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:28:37,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:28:37,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:37,011 INFO L87 Difference]: Start difference. First operand 1272 states and 1587 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 22:28:38,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:38,095 INFO L93 Difference]: Finished difference Result 1218 states and 1507 transitions. [2023-11-21 22:28:38,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:38,097 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2023-11-21 22:28:38,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:38,102 INFO L225 Difference]: With dead ends: 1218 [2023-11-21 22:28:38,102 INFO L226 Difference]: Without dead ends: 1218 [2023-11-21 22:28:38,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 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 22:28:38,104 INFO L413 NwaCegarLoop]: 932 mSDtfsCounter, 69 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:38,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1815 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-21 22:28:38,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2023-11-21 22:28:38,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1218. [2023-11-21 22:28:38,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 689 states have (on average 2.1756168359941945) internal successors, (1499), 1212 states have internal predecessors, (1499), 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 22:28:38,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1507 transitions. [2023-11-21 22:28:38,134 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1507 transitions. Word has length 12 [2023-11-21 22:28:38,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:38,135 INFO L495 AbstractCegarLoop]: Abstraction has 1218 states and 1507 transitions. [2023-11-21 22:28:38,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 22:28:38,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1507 transitions. [2023-11-21 22:28:38,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 22:28:38,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:38,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:38,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:38,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:38,341 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr632ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-21 22:28:38,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:38,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1290804680, now seen corresponding path program 1 times [2023-11-21 22:28:38,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:28:38,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1496755664] [2023-11-21 22:28:38,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:38,342 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 22:28:38,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:28:38,350 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:38,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:38,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:28:38,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:38,614 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:28:38,615 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:28:38,615 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-21 22:28:38,622 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 22:28:38,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:28:38,695 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 22:28:38,720 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 22:28:38,721 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:38,721 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:28:38,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1496755664] [2023-11-21 22:28:38,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1496755664] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:38,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:38,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:28:38,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44107825] [2023-11-21 22:28:38,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:38,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:28:38,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:28:38,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:28:38,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:38,723 INFO L87 Difference]: Start difference. First operand 1218 states and 1507 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:28:41,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:41,308 INFO L93 Difference]: Finished difference Result 1642 states and 1999 transitions. [2023-11-21 22:28:41,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:28:41,308 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-21 22:28:41,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:41,315 INFO L225 Difference]: With dead ends: 1642 [2023-11-21 22:28:41,315 INFO L226 Difference]: Without dead ends: 1642 [2023-11-21 22:28:41,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 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 22:28:41,316 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 426 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:41,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 2742 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-21 22:28:41,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2023-11-21 22:28:41,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1217. [2023-11-21 22:28:41,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 688 states have (on average 2.175872093023256) internal successors, (1497), 1211 states have internal predecessors, (1497), 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 22:28:41,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1505 transitions. [2023-11-21 22:28:41,348 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1505 transitions. Word has length 13 [2023-11-21 22:28:41,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:41,348 INFO L495 AbstractCegarLoop]: Abstraction has 1217 states and 1505 transitions. [2023-11-21 22:28:41,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:28:41,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1505 transitions. [2023-11-21 22:28:41,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-21 22:28:41,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:41,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:41,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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)] Ended with exit code 0 [2023-11-21 22:28:41,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:41,554 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-21 22:28:41,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:41,555 INFO L85 PathProgramCache]: Analyzing trace with hash -2134957451, now seen corresponding path program 1 times [2023-11-21 22:28:41,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:28:41,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1090013329] [2023-11-21 22:28:41,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:41,556 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 22:28:41,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:28:41,557 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:41,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:41,764 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:28:41,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:41,777 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 22:28:41,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:41,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:28:41,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1090013329] [2023-11-21 22:28:41,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1090013329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:41,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:41,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:28:41,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575553243] [2023-11-21 22:28:41,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:41,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:28:41,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:28:41,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:28:41,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:28:41,780 INFO L87 Difference]: Start difference. First operand 1217 states and 1505 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 22:28:42,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:42,829 INFO L93 Difference]: Finished difference Result 1163 states and 1425 transitions. [2023-11-21 22:28:42,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:28:42,831 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 22:28:42,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:42,837 INFO L225 Difference]: With dead ends: 1163 [2023-11-21 22:28:42,837 INFO L226 Difference]: Without dead ends: 1163 [2023-11-21 22:28:42,837 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 22:28:42,838 INFO L413 NwaCegarLoop]: 895 mSDtfsCounter, 69 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:42,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1741 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-21 22:28:42,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2023-11-21 22:28:42,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1163. [2023-11-21 22:28:42,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1163 states, 658 states have (on average 2.153495440729483) internal successors, (1417), 1157 states have internal predecessors, (1417), 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 22:28:42,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1163 states to 1163 states and 1425 transitions. [2023-11-21 22:28:42,866 INFO L78 Accepts]: Start accepts. Automaton has 1163 states and 1425 transitions. Word has length 14 [2023-11-21 22:28:42,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:42,867 INFO L495 AbstractCegarLoop]: Abstraction has 1163 states and 1425 transitions. [2023-11-21 22:28:42,867 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 22:28:42,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1163 states and 1425 transitions. [2023-11-21 22:28:42,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-21 22:28:42,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:42,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:42,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:43,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:43,072 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-21 22:28:43,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:43,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1757233252, now seen corresponding path program 1 times [2023-11-21 22:28:43,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:28:43,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004556295] [2023-11-21 22:28:43,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:43,073 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 22:28:43,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:28:43,075 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:43,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:43,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:28:43,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:43,333 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 22:28:43,333 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:43,334 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:28:43,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004556295] [2023-11-21 22:28:43,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004556295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:43,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:43,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:28:43,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107215735] [2023-11-21 22:28:43,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:43,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:28:43,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:28:43,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:28:43,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:43,336 INFO L87 Difference]: Start difference. First operand 1163 states and 1425 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 22:28:44,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:44,703 INFO L93 Difference]: Finished difference Result 1149 states and 1383 transitions. [2023-11-21 22:28:44,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:28:44,705 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 22:28:44,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:44,711 INFO L225 Difference]: With dead ends: 1149 [2023-11-21 22:28:44,711 INFO L226 Difference]: Without dead ends: 1149 [2023-11-21 22:28:44,712 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 22:28:44,712 INFO L413 NwaCegarLoop]: 864 mSDtfsCounter, 58 mSDsluCounter, 1704 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:44,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2568 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-21 22:28:44,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1149 states. [2023-11-21 22:28:44,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1149 to 1147. [2023-11-21 22:28:44,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1147 states, 656 states have (on average 2.0929878048780486) internal successors, (1373), 1141 states have internal predecessors, (1373), 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 22:28:44,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1147 states to 1147 states and 1381 transitions. [2023-11-21 22:28:44,737 INFO L78 Accepts]: Start accepts. Automaton has 1147 states and 1381 transitions. Word has length 15 [2023-11-21 22:28:44,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:44,737 INFO L495 AbstractCegarLoop]: Abstraction has 1147 states and 1381 transitions. [2023-11-21 22:28:44,737 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 22:28:44,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1147 states and 1381 transitions. [2023-11-21 22:28:44,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:28:44,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:44,738 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 22:28:44,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:44,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:44,942 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 631 more)] === [2023-11-21 22:28:44,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:44,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1493360918, now seen corresponding path program 1 times [2023-11-21 22:28:44,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:28:44,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [218516581] [2023-11-21 22:28:44,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:44,944 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 22:28:44,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:28:44,945 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:44,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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 22:28:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:45,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:28:45,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:28:45,150 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 22:28:45,248 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 22:28:45,248 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:28:45,249 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:28:45,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [218516581] [2023-11-21 22:28:45,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [218516581] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:45,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:45,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:28:45,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697951523] [2023-11-21 22:28:45,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:45,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:28:45,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:28:45,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:28:45,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:28:45,251 INFO L87 Difference]: Start difference. First operand 1147 states and 1381 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 22:28:48,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:28:48,536 INFO L93 Difference]: Finished difference Result 1509 states and 1864 transitions. [2023-11-21 22:28:48,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:28:48,538 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 22:28:48,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:28:48,543 INFO L225 Difference]: With dead ends: 1509 [2023-11-21 22:28:48,544 INFO L226 Difference]: Without dead ends: 1509 [2023-11-21 22:28:48,544 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 22:28:48,545 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 771 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 1239 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:28:48,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 1239 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1298 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-11-21 22:28:48,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2023-11-21 22:28:48,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1143. [2023-11-21 22:28:48,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1143 states, 656 states have (on average 2.080792682926829) internal successors, (1365), 1137 states have internal predecessors, (1365), 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 22:28:48,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1143 states to 1143 states and 1373 transitions. [2023-11-21 22:28:48,572 INFO L78 Accepts]: Start accepts. Automaton has 1143 states and 1373 transitions. Word has length 29 [2023-11-21 22:28:48,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:28:48,572 INFO L495 AbstractCegarLoop]: Abstraction has 1143 states and 1373 transitions. [2023-11-21 22:28:48,572 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 22:28:48,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1143 states and 1373 transitions. [2023-11-21 22:28:48,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:28:48,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:48,574 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 22:28:48,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d84877c1-2a27-4218-b262-ce8c23ca6ca1/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)] Forceful destruction successful, exit code 0