./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:55:41,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:55:41,212 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:55:41,221 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:55:41,222 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:55:41,265 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:55:41,266 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:55:41,267 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:55:41,268 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:55:41,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:55:41,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:55:41,276 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:55:41,276 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:55:41,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:55:41,279 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:55:41,279 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:55:41,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:55:41,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:55:41,281 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:55:41,281 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:55:41,282 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:55:41,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:55:41,283 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:55:41,283 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:55:41,284 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:55:41,299 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:55:41,300 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:55:41,300 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:55:41,301 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:55:41,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:55:41,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:55:41,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:55:41,303 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:55:41,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:55:41,304 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:55:41,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:55:41,305 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:55:41,305 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:55:41,305 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_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2023-11-06 22:55:41,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:55:41,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:55:41,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:55:41,706 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:55:41,707 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:55:41,708 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2023-11-06 22:55:44,806 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:55:45,147 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:55:45,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2023-11-06 22:55:45,170 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/data/64d56791f/3803dfce416e4886ab0c990dee0d8e38/FLAG798c9b9de [2023-11-06 22:55:45,186 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/data/64d56791f/3803dfce416e4886ab0c990dee0d8e38 [2023-11-06 22:55:45,188 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:55:45,190 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:55:45,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:55:45,192 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:55:45,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:55:45,209 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:55:45" (1/1) ... [2023-11-06 22:55:45,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e30f65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:45, skipping insertion in model container [2023-11-06 22:55:45,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:55:45" (1/1) ... [2023-11-06 22:55:45,319 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:55:46,025 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:55:46,038 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-06 22:55:46,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5d52fcbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:46, skipping insertion in model container [2023-11-06 22:55:46,039 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:55:46,040 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 22:55:46,042 INFO L158 Benchmark]: Toolchain (without parser) took 851.06ms. Allocated memory is still 136.3MB. Free memory was 87.9MB in the beginning and 63.9MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 22:55:46,043 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 136.3MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:55:46,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 848.25ms. Allocated memory is still 136.3MB. Free memory was 87.9MB in the beginning and 63.9MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 22:55:46,045 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 136.3MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 848.25ms. Allocated memory is still 136.3MB. Free memory was 87.9MB in the beginning and 63.9MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:55:48,617 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:55:48,701 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-06 22:55:48,707 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:55:48,708 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:55:48,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:55:48,748 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:55:48,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:55:48,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:55:48,755 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:55:48,756 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:55:48,756 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:55:48,757 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:55:48,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:55:48,759 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:55:48,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:55:48,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:55:48,761 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:55:48,761 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:55:48,763 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:55:48,763 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:55:48,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:55:48,764 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:55:48,765 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:55:48,765 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:55:48,766 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:55:48,766 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:55:48,767 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:55:48,768 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:55:48,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:55:48,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:55:48,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:55:48,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:55:48,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:55:48,771 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:55:48,772 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:55:48,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:55:48,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:55:48,773 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:55:48,774 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:55:48,774 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:55:48,775 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_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2023-11-06 22:55:49,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:55:49,231 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:55:49,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:55:49,236 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:55:49,236 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:55:49,238 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2023-11-06 22:55:52,433 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:55:52,880 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:55:52,881 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2023-11-06 22:55:52,902 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/data/548f50a4f/1e85831ccfe148b8bdd5d6dce2a12c30/FLAG6f5d178e2 [2023-11-06 22:55:52,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/data/548f50a4f/1e85831ccfe148b8bdd5d6dce2a12c30 [2023-11-06 22:55:52,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:55:52,929 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:55:52,931 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:55:52,931 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:55:52,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:55:52,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:55:52" (1/1) ... [2023-11-06 22:55:52,942 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd5778f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:52, skipping insertion in model container [2023-11-06 22:55:52,942 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:55:52" (1/1) ... [2023-11-06 22:55:53,014 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:55:53,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:55:53,792 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 22:55:53,816 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:55:53,958 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:55:53,967 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:55:54,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:55:54,115 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:55:54,122 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:55:54,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54 WrapperNode [2023-11-06 22:55:54,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:55:54,125 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:55:54,125 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:55:54,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:55:54,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (1/1) ... [2023-11-06 22:55:54,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (1/1) ... [2023-11-06 22:55:54,319 INFO L138 Inliner]: procedures = 180, calls = 489, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1732 [2023-11-06 22:55:54,319 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:55:54,320 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:55:54,320 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:55:54,320 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:55:54,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (1/1) ... [2023-11-06 22:55:54,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (1/1) ... [2023-11-06 22:55:54,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (1/1) ... [2023-11-06 22:55:54,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (1/1) ... [2023-11-06 22:55:54,428 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (1/1) ... [2023-11-06 22:55:54,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (1/1) ... [2023-11-06 22:55:54,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (1/1) ... [2023-11-06 22:55:54,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (1/1) ... [2023-11-06 22:55:54,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:55:54,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:55:54,499 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:55:54,499 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:55:54,500 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (1/1) ... [2023-11-06 22:55:54,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:55:54,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:55:54,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:55:54,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:55:54,590 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 22:55:54,591 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 22:55:54,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 22:55:54,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 22:55:54,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 22:55:54,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 22:55:54,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 22:55:54,592 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 22:55:54,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:55:54,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:55:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:55:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:55:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 22:55:54,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:55:54,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:55:54,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 22:55:54,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:55:54,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:55:54,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:55:54,912 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:55:54,916 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:55:54,960 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 22:56:03,929 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:56:03,951 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:56:03,951 INFO L302 CfgBuilder]: Removed 100 assume(true) statements. [2023-11-06 22:56:03,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:03 BoogieIcfgContainer [2023-11-06 22:56:03,957 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:56:03,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:56:03,961 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:56:03,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:56:03,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:55:52" (1/3) ... [2023-11-06 22:56:03,967 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc76c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:56:03, skipping insertion in model container [2023-11-06 22:56:03,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:55:54" (2/3) ... [2023-11-06 22:56:03,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc76c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:56:03, skipping insertion in model container [2023-11-06 22:56:03,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:56:03" (3/3) ... [2023-11-06 22:56:03,970 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-3.i [2023-11-06 22:56:03,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:56:03,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 931 error locations. [2023-11-06 22:56:04,090 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:56:04,097 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;@484eca11, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:56:04,098 INFO L358 AbstractCegarLoop]: Starting to check reachability of 931 error locations. [2023-11-06 22:56:04,111 INFO L276 IsEmpty]: Start isEmpty. Operand has 1849 states, 907 states have (on average 2.2425578831312016) internal successors, (2034), 1839 states have internal predecessors, (2034), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-06 22:56:04,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:56:04,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:04,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:56:04,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:04,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:04,128 INFO L85 PathProgramCache]: Analyzing trace with hash 45876316, now seen corresponding path program 1 times [2023-11-06 22:56:04,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:04,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [406973026] [2023-11-06 22:56:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:04,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:04,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:04,152 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:04,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:56:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:04,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:56:04,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:04,509 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:56:04,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:04,547 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:04,548 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:04,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [406973026] [2023-11-06 22:56:04,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [406973026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:04,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:04,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:56:04,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480915602] [2023-11-06 22:56:04,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:04,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:56:04,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:04,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:56:04,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:04,607 INFO L87 Difference]: Start difference. First operand has 1849 states, 907 states have (on average 2.2425578831312016) internal successors, (2034), 1839 states have internal predecessors, (2034), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 2.5) 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) [2023-11-06 22:56:09,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:09,018 INFO L93 Difference]: Finished difference Result 2094 states and 2239 transitions. [2023-11-06 22:56:09,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:56:09,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 [2023-11-06 22:56:09,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:09,048 INFO L225 Difference]: With dead ends: 2094 [2023-11-06 22:56:09,049 INFO L226 Difference]: Without dead ends: 2092 [2023-11-06 22:56:09,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:09,054 INFO L413 NwaCegarLoop]: 1370 mSDtfsCounter, 1375 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1842 SdHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:09,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 1842 Invalid, 1189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1087 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-06 22:56:09,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2092 states. [2023-11-06 22:56:09,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2092 to 1816. [2023-11-06 22:56:09,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1816 states, 977 states have (on average 1.9979529170931423) internal successors, (1952), 1806 states have internal predecessors, (1952), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:09,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1816 states to 1816 states and 1976 transitions. [2023-11-06 22:56:09,231 INFO L78 Accepts]: Start accepts. Automaton has 1816 states and 1976 transitions. Word has length 5 [2023-11-06 22:56:09,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:09,231 INFO L495 AbstractCegarLoop]: Abstraction has 1816 states and 1976 transitions. [2023-11-06 22:56:09,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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) [2023-11-06 22:56:09,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1816 states and 1976 transitions. [2023-11-06 22:56:09,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:56:09,232 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:09,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:56:09,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-06 22:56:09,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:09,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:09,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:09,445 INFO L85 PathProgramCache]: Analyzing trace with hash 45876317, now seen corresponding path program 1 times [2023-11-06 22:56:09,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:09,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1807815386] [2023-11-06 22:56:09,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:09,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:09,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:09,469 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:09,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:56:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:09,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:09,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:09,673 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:56:09,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:09,705 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:09,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:09,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1807815386] [2023-11-06 22:56:09,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1807815386] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:09,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:09,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:56:09,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366063424] [2023-11-06 22:56:09,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:09,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:56:09,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:09,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:56:09,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:09,716 INFO L87 Difference]: Start difference. First operand 1816 states and 1976 transitions. Second operand has 3 states, 2 states have (on average 2.5) 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) [2023-11-06 22:56:16,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:16,218 INFO L93 Difference]: Finished difference Result 2345 states and 2556 transitions. [2023-11-06 22:56:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:56:16,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) 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 [2023-11-06 22:56:16,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:16,234 INFO L225 Difference]: With dead ends: 2345 [2023-11-06 22:56:16,235 INFO L226 Difference]: Without dead ends: 2345 [2023-11-06 22:56:16,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:16,237 INFO L413 NwaCegarLoop]: 1761 mSDtfsCounter, 751 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1159 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 2575 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:16,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 2575 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1159 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-11-06 22:56:16,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2345 states. [2023-11-06 22:56:16,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2345 to 1976. [2023-11-06 22:56:16,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1147 states have (on average 1.972101133391456) internal successors, (2262), 1966 states have internal predecessors, (2262), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:16,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2286 transitions. [2023-11-06 22:56:16,322 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2286 transitions. Word has length 5 [2023-11-06 22:56:16,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:16,322 INFO L495 AbstractCegarLoop]: Abstraction has 1976 states and 2286 transitions. [2023-11-06 22:56:16,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) 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) [2023-11-06 22:56:16,323 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2286 transitions. [2023-11-06 22:56:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-06 22:56:16,324 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:16,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:56:16,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:16,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:16,546 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:16,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:16,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1423857071, now seen corresponding path program 1 times [2023-11-06 22:56:16,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:16,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236682427] [2023-11-06 22:56:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:16,561 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:16,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:16,564 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:16,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:16,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:16,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:16,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:16,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:16,768 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:16,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236682427] [2023-11-06 22:56:16,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236682427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:16,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:16,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:56:16,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028253626] [2023-11-06 22:56:16,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:16,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:56:16,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:16,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:56:16,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:16,780 INFO L87 Difference]: Start difference. First operand 1976 states and 2286 transitions. Second operand has 3 states, 3 states have (on average 2.0) 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) [2023-11-06 22:56:16,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:16,972 INFO L93 Difference]: Finished difference Result 3552 states and 4153 transitions. [2023-11-06 22:56:16,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:56:16,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) 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 [2023-11-06 22:56:16,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:16,997 INFO L225 Difference]: With dead ends: 3552 [2023-11-06 22:56:16,998 INFO L226 Difference]: Without dead ends: 3552 [2023-11-06 22:56:16,998 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 [2023-11-06 22:56:16,999 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 1383 mSDsluCounter, 1817 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 4134 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:17,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 4134 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:56:17,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3552 states. [2023-11-06 22:56:17,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3552 to 1978. [2023-11-06 22:56:17,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1149 states have (on average 1.9704090513489991) internal successors, (2264), 1968 states have internal predecessors, (2264), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:17,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2288 transitions. [2023-11-06 22:56:17,070 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2288 transitions. Word has length 6 [2023-11-06 22:56:17,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:17,070 INFO L495 AbstractCegarLoop]: Abstraction has 1978 states and 2288 transitions. [2023-11-06 22:56:17,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) 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) [2023-11-06 22:56:17,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2288 transitions. [2023-11-06 22:56:17,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 22:56:17,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:17,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:17,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:17,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:17,290 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:17,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:17,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1344610650, now seen corresponding path program 1 times [2023-11-06 22:56:17,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:17,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465034866] [2023-11-06 22:56:17,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:17,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:17,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:17,299 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:17,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:17,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:56:17,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:17,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:17,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:17,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:17,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465034866] [2023-11-06 22:56:17,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465034866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:17,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:17,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:56:17,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435882244] [2023-11-06 22:56:17,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:17,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:56:17,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:17,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:56:17,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:17,549 INFO L87 Difference]: Start difference. First operand 1978 states and 2288 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:17,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:17,604 INFO L93 Difference]: Finished difference Result 1936 states and 2245 transitions. [2023-11-06 22:56:17,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:56:17,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-06 22:56:17,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:17,616 INFO L225 Difference]: With dead ends: 1936 [2023-11-06 22:56:17,616 INFO L226 Difference]: Without dead ends: 1936 [2023-11-06 22:56:17,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:17,618 INFO L413 NwaCegarLoop]: 1772 mSDtfsCounter, 81 mSDsluCounter, 1700 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 3472 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:17,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 3472 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:56:17,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1936 states. [2023-11-06 22:56:17,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1936 to 1936. [2023-11-06 22:56:17,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1936 states, 1131 states have (on average 1.9637488947833774) internal successors, (2221), 1926 states have internal predecessors, (2221), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:17,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1936 states to 1936 states and 2245 transitions. [2023-11-06 22:56:17,693 INFO L78 Accepts]: Start accepts. Automaton has 1936 states and 2245 transitions. Word has length 11 [2023-11-06 22:56:17,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:17,694 INFO L495 AbstractCegarLoop]: Abstraction has 1936 states and 2245 transitions. [2023-11-06 22:56:17,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:17,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1936 states and 2245 transitions. [2023-11-06 22:56:17,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:56:17,695 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:17,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:17,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:17,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:17,907 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:17,907 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:17,908 INFO L85 PathProgramCache]: Analyzing trace with hash 614317568, now seen corresponding path program 1 times [2023-11-06 22:56:17,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:17,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968907082] [2023-11-06 22:56:17,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:17,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:17,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:17,909 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:17,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:18,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:56:18,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:18,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:18,163 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:18,164 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:18,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968907082] [2023-11-06 22:56:18,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968907082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:18,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:18,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:56:18,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548590853] [2023-11-06 22:56:18,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:18,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:56:18,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:18,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:18,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:18,172 INFO L87 Difference]: Start difference. First operand 1936 states and 2245 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) [2023-11-06 22:56:18,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:18,285 INFO L93 Difference]: Finished difference Result 1915 states and 2217 transitions. [2023-11-06 22:56:18,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:18,286 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 [2023-11-06 22:56:18,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:18,296 INFO L225 Difference]: With dead ends: 1915 [2023-11-06 22:56:18,297 INFO L226 Difference]: Without dead ends: 1915 [2023-11-06 22:56:18,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:56:18,298 INFO L413 NwaCegarLoop]: 1727 mSDtfsCounter, 62 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 5147 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:18,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 5147 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:56:18,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2023-11-06 22:56:18,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1914. [2023-11-06 22:56:18,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1123 states have (on average 1.9519145146927872) internal successors, (2192), 1904 states have internal predecessors, (2192), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:18,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2216 transitions. [2023-11-06 22:56:18,349 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2216 transitions. Word has length 13 [2023-11-06 22:56:18,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:18,349 INFO L495 AbstractCegarLoop]: Abstraction has 1914 states and 2216 transitions. [2023-11-06 22:56:18,349 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) [2023-11-06 22:56:18,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2216 transitions. [2023-11-06 22:56:18,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-06 22:56:18,351 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:18,351 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] [2023-11-06 22:56:18,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:18,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:18,563 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:18,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:18,564 INFO L85 PathProgramCache]: Analyzing trace with hash -957630610, now seen corresponding path program 1 times [2023-11-06 22:56:18,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:18,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [278804804] [2023-11-06 22:56:18,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:18,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:18,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:18,565 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:18,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:18,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:18,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:18,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:18,801 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:56:18,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:18,900 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:18,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:18,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [278804804] [2023-11-06 22:56:18,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [278804804] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:18,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:18,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:56:18,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134277147] [2023-11-06 22:56:18,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:18,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:56:18,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:18,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:18,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:18,903 INFO L87 Difference]: Start difference. First operand 1914 states and 2216 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:24,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:24,289 INFO L93 Difference]: Finished difference Result 2187 states and 2474 transitions. [2023-11-06 22:56:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:24,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2023-11-06 22:56:24,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:24,303 INFO L225 Difference]: With dead ends: 2187 [2023-11-06 22:56:24,303 INFO L226 Difference]: Without dead ends: 2187 [2023-11-06 22:56:24,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:56:24,304 INFO L413 NwaCegarLoop]: 1074 mSDtfsCounter, 1304 mSDsluCounter, 1272 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 1947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:24,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 2346 Invalid, 1947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-06 22:56:24,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2187 states. [2023-11-06 22:56:24,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2187 to 1910. [2023-11-06 22:56:24,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1910 states, 1123 states have (on average 1.9483526268922529) internal successors, (2188), 1900 states have internal predecessors, (2188), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:24,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1910 states to 1910 states and 2212 transitions. [2023-11-06 22:56:24,358 INFO L78 Accepts]: Start accepts. Automaton has 1910 states and 2212 transitions. Word has length 27 [2023-11-06 22:56:24,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:24,359 INFO L495 AbstractCegarLoop]: Abstraction has 1910 states and 2212 transitions. [2023-11-06 22:56:24,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:24,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1910 states and 2212 transitions. [2023-11-06 22:56:24,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-06 22:56:24,360 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:24,361 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] [2023-11-06 22:56:24,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:24,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:24,574 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:24,574 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:24,574 INFO L85 PathProgramCache]: Analyzing trace with hash -957630609, now seen corresponding path program 1 times [2023-11-06 22:56:24,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:24,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [710156810] [2023-11-06 22:56:24,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:24,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:24,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:24,577 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:24,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:24,849 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:56:24,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:24,867 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:56:25,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:25,129 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:25,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:25,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [710156810] [2023-11-06 22:56:25,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [710156810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:25,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:25,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:56:25,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853421780] [2023-11-06 22:56:25,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:25,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:56:25,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:25,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:25,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:25,132 INFO L87 Difference]: Start difference. First operand 1910 states and 2212 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:32,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:32,400 INFO L93 Difference]: Finished difference Result 2276 states and 2479 transitions. [2023-11-06 22:56:32,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:32,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2023-11-06 22:56:32,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:32,413 INFO L225 Difference]: With dead ends: 2276 [2023-11-06 22:56:32,414 INFO L226 Difference]: Without dead ends: 2276 [2023-11-06 22:56:32,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:56:32,415 INFO L413 NwaCegarLoop]: 1466 mSDtfsCounter, 682 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 1982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:32,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 3114 Invalid, 1982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-11-06 22:56:32,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2276 states. [2023-11-06 22:56:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2276 to 1906. [2023-11-06 22:56:32,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1906 states, 1123 states have (on average 1.9447907390917185) internal successors, (2184), 1896 states have internal predecessors, (2184), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:32,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1906 states to 1906 states and 2208 transitions. [2023-11-06 22:56:32,464 INFO L78 Accepts]: Start accepts. Automaton has 1906 states and 2208 transitions. Word has length 27 [2023-11-06 22:56:32,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:32,465 INFO L495 AbstractCegarLoop]: Abstraction has 1906 states and 2208 transitions. [2023-11-06 22:56:32,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:32,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1906 states and 2208 transitions. [2023-11-06 22:56:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-06 22:56:32,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:32,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:32,484 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-06 22:56:32,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:32,680 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:32,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:32,680 INFO L85 PathProgramCache]: Analyzing trace with hash -3860248, now seen corresponding path program 1 times [2023-11-06 22:56:32,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:32,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1001532833] [2023-11-06 22:56:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:32,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:32,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:32,684 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:32,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:33,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:56:33,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:33,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:33,079 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:33,079 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:33,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1001532833] [2023-11-06 22:56:33,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1001532833] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:33,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:33,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:56:33,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574613765] [2023-11-06 22:56:33,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:33,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:56:33,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:33,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:33,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:33,081 INFO L87 Difference]: Start difference. First operand 1906 states and 2208 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:33,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:33,178 INFO L93 Difference]: Finished difference Result 1900 states and 2198 transitions. [2023-11-06 22:56:33,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:33,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 43 [2023-11-06 22:56:33,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:33,188 INFO L225 Difference]: With dead ends: 1900 [2023-11-06 22:56:33,189 INFO L226 Difference]: Without dead ends: 1900 [2023-11-06 22:56:33,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:56:33,190 INFO L413 NwaCegarLoop]: 1721 mSDtfsCounter, 31 mSDsluCounter, 3404 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 5125 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:33,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 5125 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:56:33,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2023-11-06 22:56:33,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1900. [2023-11-06 22:56:33,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1117 states have (on average 1.946284691136974) internal successors, (2174), 1890 states have internal predecessors, (2174), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:33,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2198 transitions. [2023-11-06 22:56:33,251 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2198 transitions. Word has length 43 [2023-11-06 22:56:33,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:33,252 INFO L495 AbstractCegarLoop]: Abstraction has 1900 states and 2198 transitions. [2023-11-06 22:56:33,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:33,252 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2198 transitions. [2023-11-06 22:56:33,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-06 22:56:33,257 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:33,257 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:33,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:33,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:33,471 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:33,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:33,473 INFO L85 PathProgramCache]: Analyzing trace with hash 168131124, now seen corresponding path program 1 times [2023-11-06 22:56:33,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:33,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850746621] [2023-11-06 22:56:33,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:33,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:33,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:33,479 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:33,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:33,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:56:33,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:34,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:34,185 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:34,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:34,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850746621] [2023-11-06 22:56:34,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850746621] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:34,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:34,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:56:34,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513660793] [2023-11-06 22:56:34,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:34,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:56:34,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:34,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:56:34,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:34,189 INFO L87 Difference]: Start difference. First operand 1900 states and 2198 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:34,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:34,523 INFO L93 Difference]: Finished difference Result 2324 states and 2639 transitions. [2023-11-06 22:56:34,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:56:34,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2023-11-06 22:56:34,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:34,538 INFO L225 Difference]: With dead ends: 2324 [2023-11-06 22:56:34,539 INFO L226 Difference]: Without dead ends: 2324 [2023-11-06 22:56:34,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:56:34,541 INFO L413 NwaCegarLoop]: 1807 mSDtfsCounter, 459 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 461 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:34,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [461 Valid, 3409 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:56:34,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2023-11-06 22:56:34,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 1947. [2023-11-06 22:56:34,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1947 states, 1164 states have (on average 1.9080756013745706) internal successors, (2221), 1937 states have internal predecessors, (2221), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:34,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1947 states to 1947 states and 2245 transitions. [2023-11-06 22:56:34,588 INFO L78 Accepts]: Start accepts. Automaton has 1947 states and 2245 transitions. Word has length 51 [2023-11-06 22:56:34,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:34,589 INFO L495 AbstractCegarLoop]: Abstraction has 1947 states and 2245 transitions. [2023-11-06 22:56:34,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:34,589 INFO L276 IsEmpty]: Start isEmpty. Operand 1947 states and 2245 transitions. [2023-11-06 22:56:34,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-06 22:56:34,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:34,594 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:34,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:34,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:34,813 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:34,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:34,814 INFO L85 PathProgramCache]: Analyzing trace with hash 754975115, now seen corresponding path program 1 times [2023-11-06 22:56:34,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:34,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2092780538] [2023-11-06 22:56:34,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:34,814 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:34,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:34,815 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:34,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:35,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:56:35,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:35,282 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:56:35,289 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:56:35,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 22:56:35,894 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-06 22:56:35,914 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:56:35,914 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-06 22:56:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:35,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:35,938 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:35,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2092780538] [2023-11-06 22:56:35,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2092780538] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:35,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:35,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:56:35,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41746188] [2023-11-06 22:56:35,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:35,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:56:35,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:35,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:35,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:35,941 INFO L87 Difference]: Start difference. First operand 1947 states and 2245 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:41,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:41,983 INFO L93 Difference]: Finished difference Result 2139 states and 2422 transitions. [2023-11-06 22:56:41,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:41,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2023-11-06 22:56:41,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:41,994 INFO L225 Difference]: With dead ends: 2139 [2023-11-06 22:56:41,994 INFO L226 Difference]: Without dead ends: 2139 [2023-11-06 22:56:41,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:41,995 INFO L413 NwaCegarLoop]: 825 mSDtfsCounter, 1539 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 1572 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 1667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:41,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 1337 Invalid, 1667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1572 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2023-11-06 22:56:42,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2023-11-06 22:56:42,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 1693. [2023-11-06 22:56:42,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 994 states have (on average 1.8269617706237424) internal successors, (1816), 1683 states have internal predecessors, (1816), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:42,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 1840 transitions. [2023-11-06 22:56:42,037 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 1840 transitions. Word has length 54 [2023-11-06 22:56:42,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:42,037 INFO L495 AbstractCegarLoop]: Abstraction has 1693 states and 1840 transitions. [2023-11-06 22:56:42,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:42,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 1840 transitions. [2023-11-06 22:56:42,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-06 22:56:42,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:42,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:42,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:42,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:42,256 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:42,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:42,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1572100217, now seen corresponding path program 1 times [2023-11-06 22:56:42,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:42,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403025014] [2023-11-06 22:56:42,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:42,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:42,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:42,258 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:42,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:56:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:42,630 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:56:42,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:42,646 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:56:42,665 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 22:56:42,699 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 22:56:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:42,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:42,715 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:42,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403025014] [2023-11-06 22:56:42,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403025014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:42,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:42,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:56:42,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088701081] [2023-11-06 22:56:42,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:42,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:56:42,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:42,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:56:42,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:56:42,719 INFO L87 Difference]: Start difference. First operand 1693 states and 1840 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:48,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:48,385 INFO L93 Difference]: Finished difference Result 1692 states and 1839 transitions. [2023-11-06 22:56:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:56:48,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2023-11-06 22:56:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:48,396 INFO L225 Difference]: With dead ends: 1692 [2023-11-06 22:56:48,396 INFO L226 Difference]: Without dead ends: 1692 [2023-11-06 22:56:48,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:56:48,397 INFO L413 NwaCegarLoop]: 1648 mSDtfsCounter, 4 mSDsluCounter, 2564 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4212 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:48,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4212 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2385 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-06 22:56:48,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1692 states. [2023-11-06 22:56:48,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1692 to 1692. [2023-11-06 22:56:48,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 994 states have (on average 1.8259557344064385) internal successors, (1815), 1682 states have internal predecessors, (1815), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:48,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 1839 transitions. [2023-11-06 22:56:48,461 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 1839 transitions. Word has length 59 [2023-11-06 22:56:48,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:48,462 INFO L495 AbstractCegarLoop]: Abstraction has 1692 states and 1839 transitions. [2023-11-06 22:56:48,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:48,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 1839 transitions. [2023-11-06 22:56:48,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-06 22:56:48,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:48,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:48,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-06 22:56:48,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:48,679 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:48,679 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:48,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1572100216, now seen corresponding path program 1 times [2023-11-06 22:56:48,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:48,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [707378152] [2023-11-06 22:56:48,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:48,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:48,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:48,682 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:48,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-06 22:56:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:49,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-06 22:56:49,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:49,082 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:56:49,110 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-06 22:56:49,122 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 22:56:49,193 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-06 22:56:49,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:49,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:49,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:49,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [707378152] [2023-11-06 22:56:49,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [707378152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:49,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:49,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:56:49,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368073243] [2023-11-06 22:56:49,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:49,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:56:49,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:49,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:56:49,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:56:49,224 INFO L87 Difference]: Start difference. First operand 1692 states and 1839 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:56,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:56,781 INFO L93 Difference]: Finished difference Result 1691 states and 1838 transitions. [2023-11-06 22:56:56,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:56:56,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2023-11-06 22:56:56,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:56,790 INFO L225 Difference]: With dead ends: 1691 [2023-11-06 22:56:56,790 INFO L226 Difference]: Without dead ends: 1691 [2023-11-06 22:56:56,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:56:56,791 INFO L413 NwaCegarLoop]: 1648 mSDtfsCounter, 2 mSDsluCounter, 2622 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4270 SdHoareTripleChecker+Invalid, 2326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:56,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4270 Invalid, 2326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2023-11-06 22:56:56,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2023-11-06 22:56:56,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1691. [2023-11-06 22:56:56,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 993 states have (on average 1.8267875125881168) internal successors, (1814), 1681 states have internal predecessors, (1814), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-06 22:56:56,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 1838 transitions. [2023-11-06 22:56:56,828 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 1838 transitions. Word has length 59 [2023-11-06 22:56:56,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:56,829 INFO L495 AbstractCegarLoop]: Abstraction has 1691 states and 1838 transitions. [2023-11-06 22:56:56,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:56:56,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 1838 transitions. [2023-11-06 22:56:56,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-06 22:56:56,830 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:56,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:56,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:57,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:57,047 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:57,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:57,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1034240818, now seen corresponding path program 1 times [2023-11-06 22:56:57,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:57,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [28111662] [2023-11-06 22:56:57,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:57,048 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:57,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:57,050 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:57,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-06 22:56:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:57,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:56:57,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:57,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:57,523 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:56:57,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:57,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [28111662] [2023-11-06 22:56:57,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [28111662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:56:57,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:56:57,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:56:57,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884954201] [2023-11-06 22:56:57,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:56:57,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:56:57,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:57,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:56:57,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:56:57,527 INFO L87 Difference]: Start difference. First operand 1691 states and 1838 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:56:57,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:57,624 INFO L93 Difference]: Finished difference Result 1694 states and 1843 transitions. [2023-11-06 22:56:57,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:56:57,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-11-06 22:56:57,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:57,639 INFO L225 Difference]: With dead ends: 1694 [2023-11-06 22:56:57,639 INFO L226 Difference]: Without dead ends: 1694 [2023-11-06 22:56:57,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:56:57,640 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 2 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4933 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:57,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4933 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:56:57,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2023-11-06 22:56:57,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1694. [2023-11-06 22:56:57,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1694 states, 995 states have (on average 1.8261306532663317) internal successors, (1817), 1684 states have internal predecessors, (1817), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 22:56:57,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1694 states to 1694 states and 1843 transitions. [2023-11-06 22:56:57,680 INFO L78 Accepts]: Start accepts. Automaton has 1694 states and 1843 transitions. Word has length 67 [2023-11-06 22:56:57,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:57,681 INFO L495 AbstractCegarLoop]: Abstraction has 1694 states and 1843 transitions. [2023-11-06 22:56:57,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:56:57,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1694 states and 1843 transitions. [2023-11-06 22:56:57,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-06 22:56:57,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:57,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:57,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:57,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:57,898 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:57,898 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:57,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2024521026, now seen corresponding path program 1 times [2023-11-06 22:56:57,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:57,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1093245671] [2023-11-06 22:56:57,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:56:57,899 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:57,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:57,901 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:57,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 (15)] Waiting until timeout for monitored process [2023-11-06 22:56:58,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:56:58,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:56:58,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:58,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:58,347 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:56:58,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:58,442 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:56:58,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1093245671] [2023-11-06 22:56:58,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1093245671] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:56:58,443 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:56:58,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 22:56:58,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438900810] [2023-11-06 22:56:58,443 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:56:58,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:56:58,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:56:58,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:56:58,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:56:58,445 INFO L87 Difference]: Start difference. First operand 1694 states and 1843 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:56:58,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:56:58,741 INFO L93 Difference]: Finished difference Result 1706 states and 1861 transitions. [2023-11-06 22:56:58,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:56:58,741 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2023-11-06 22:56:58,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:56:58,749 INFO L225 Difference]: With dead ends: 1706 [2023-11-06 22:56:58,749 INFO L226 Difference]: Without dead ends: 1706 [2023-11-06 22:56:58,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:56:58,750 INFO L413 NwaCegarLoop]: 1647 mSDtfsCounter, 12 mSDsluCounter, 6566 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 8213 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:56:58,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 8213 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:56:58,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2023-11-06 22:56:58,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1704. [2023-11-06 22:56:58,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1704 states, 1004 states have (on average 1.8247011952191234) internal successors, (1832), 1693 states have internal predecessors, (1832), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 22:56:58,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1704 states to 1704 states and 1858 transitions. [2023-11-06 22:56:58,787 INFO L78 Accepts]: Start accepts. Automaton has 1704 states and 1858 transitions. Word has length 68 [2023-11-06 22:56:58,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:56:58,787 INFO L495 AbstractCegarLoop]: Abstraction has 1704 states and 1858 transitions. [2023-11-06 22:56:58,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:56:58,788 INFO L276 IsEmpty]: Start isEmpty. Operand 1704 states and 1858 transitions. [2023-11-06 22:56:58,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-06 22:56:58,789 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:56:58,789 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:56:58,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:56:59,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:59,004 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:56:59,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:56:59,005 INFO L85 PathProgramCache]: Analyzing trace with hash -142296882, now seen corresponding path program 2 times [2023-11-06 22:56:59,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:56:59,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639970654] [2023-11-06 22:56:59,006 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:56:59,006 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:56:59,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:56:59,007 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:56:59,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 (16)] Waiting until timeout for monitored process [2023-11-06 22:56:59,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 22:56:59,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:56:59,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:56:59,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:56:59,780 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:56:59,781 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:57:00,055 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:57:00,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:57:00,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639970654] [2023-11-06 22:57:00,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [639970654] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:57:00,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:57:00,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-06 22:57:00,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329555746] [2023-11-06 22:57:00,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:57:00,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:57:00,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:57:00,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:57:00,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:57:00,059 INFO L87 Difference]: Start difference. First operand 1704 states and 1858 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:57:01,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:57:01,069 INFO L93 Difference]: Finished difference Result 1725 states and 1892 transitions. [2023-11-06 22:57:01,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-06 22:57:01,069 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 71 [2023-11-06 22:57:01,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:57:01,075 INFO L225 Difference]: With dead ends: 1725 [2023-11-06 22:57:01,075 INFO L226 Difference]: Without dead ends: 1719 [2023-11-06 22:57:01,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=217, Invalid=383, Unknown=0, NotChecked=0, Total=600 [2023-11-06 22:57:01,077 INFO L413 NwaCegarLoop]: 1648 mSDtfsCounter, 28 mSDsluCounter, 8214 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 22:57:01,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 9862 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 22:57:01,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1719 states. [2023-11-06 22:57:01,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1719 to 1713. [2023-11-06 22:57:01,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1013 states have (on average 1.8193484698914117) internal successors, (1843), 1702 states have internal predecessors, (1843), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 22:57:01,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 1869 transitions. [2023-11-06 22:57:01,112 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 1869 transitions. Word has length 71 [2023-11-06 22:57:01,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:57:01,112 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 1869 transitions. [2023-11-06 22:57:01,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:57:01,113 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 1869 transitions. [2023-11-06 22:57:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:57:01,113 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:01,114 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:57:01,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 (16)] Ended with exit code 0 [2023-11-06 22:57:01,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:01,330 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:57:01,330 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:01,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1998359858, now seen corresponding path program 3 times [2023-11-06 22:57:01,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:57:01,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1720995244] [2023-11-06 22:57:01,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 22:57:01,331 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:01,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:57:01,332 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:57:01,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 (17)] Waiting until timeout for monitored process [2023-11-06 22:57:02,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-06 22:57:02,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:57:02,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 22:57:02,255 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:57:02,465 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:57:02,465 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:57:03,212 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:57:03,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:57:03,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1720995244] [2023-11-06 22:57:03,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1720995244] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:57:03,213 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:57:03,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-06 22:57:03,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392335223] [2023-11-06 22:57:03,214 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:57:03,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-06 22:57:03,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:57:03,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-06 22:57:03,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-06 22:57:03,216 INFO L87 Difference]: Start difference. First operand 1713 states and 1869 transitions. Second operand has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:57:06,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:57:06,876 INFO L93 Difference]: Finished difference Result 1753 states and 1946 transitions. [2023-11-06 22:57:06,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-06 22:57:06,877 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 77 [2023-11-06 22:57:06,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:57:06,885 INFO L225 Difference]: With dead ends: 1753 [2023-11-06 22:57:06,885 INFO L226 Difference]: Without dead ends: 1747 [2023-11-06 22:57:06,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=793, Invalid=1559, Unknown=0, NotChecked=0, Total=2352 [2023-11-06 22:57:06,887 INFO L413 NwaCegarLoop]: 1653 mSDtfsCounter, 56 mSDsluCounter, 21401 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 23054 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:57:06,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 23054 Invalid, 1082 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-06 22:57:06,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2023-11-06 22:57:06,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1731. [2023-11-06 22:57:06,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1731 states, 1031 states have (on average 1.809893307468477) internal successors, (1866), 1720 states have internal predecessors, (1866), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 22:57:06,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 1892 transitions. [2023-11-06 22:57:06,931 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 1892 transitions. Word has length 77 [2023-11-06 22:57:06,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:57:06,931 INFO L495 AbstractCegarLoop]: Abstraction has 1731 states and 1892 transitions. [2023-11-06 22:57:06,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:57:06,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 1892 transitions. [2023-11-06 22:57:06,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-06 22:57:06,933 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:06,933 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:57:06,950 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:57:07,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:07,149 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:57:07,149 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:07,149 INFO L85 PathProgramCache]: Analyzing trace with hash 166094542, now seen corresponding path program 4 times [2023-11-06 22:57:07,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:57:07,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1135386173] [2023-11-06 22:57:07,150 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 22:57:07,150 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:07,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:57:07,151 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:57:07,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 (18)] Waiting until timeout for monitored process [2023-11-06 22:57:07,625 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 22:57:07,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:57:07,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 22:57:07,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:57:08,212 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:57:08,213 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:57:10,433 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:57:10,433 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:57:10,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1135386173] [2023-11-06 22:57:10,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1135386173] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:57:10,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:57:10,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-06 22:57:10,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317155468] [2023-11-06 22:57:10,434 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:57:10,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-06 22:57:10,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:57:10,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-06 22:57:10,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-06 22:57:10,438 INFO L87 Difference]: Start difference. First operand 1731 states and 1892 transitions. Second operand has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:57:22,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:57:22,530 INFO L93 Difference]: Finished difference Result 1809 states and 2022 transitions. [2023-11-06 22:57:22,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-11-06 22:57:22,531 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 89 [2023-11-06 22:57:22,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:57:22,535 INFO L225 Difference]: With dead ends: 1809 [2023-11-06 22:57:22,536 INFO L226 Difference]: Without dead ends: 1805 [2023-11-06 22:57:22,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1342 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=3742, Invalid=9140, Unknown=0, NotChecked=0, Total=12882 [2023-11-06 22:57:22,541 INFO L413 NwaCegarLoop]: 1666 mSDtfsCounter, 76 mSDsluCounter, 38209 mSDsCounter, 0 mSdLazyCounter, 2928 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 39875 SdHoareTripleChecker+Invalid, 3022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 2928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:57:22,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 39875 Invalid, 3022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [94 Valid, 2928 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-06 22:57:22,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1805 states. [2023-11-06 22:57:22,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1805 to 1765. [2023-11-06 22:57:22,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1765 states, 1065 states have (on average 1.7953051643192488) internal successors, (1912), 1754 states have internal predecessors, (1912), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 22:57:22,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1765 states to 1765 states and 1938 transitions. [2023-11-06 22:57:22,583 INFO L78 Accepts]: Start accepts. Automaton has 1765 states and 1938 transitions. Word has length 89 [2023-11-06 22:57:22,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:57:22,583 INFO L495 AbstractCegarLoop]: Abstraction has 1765 states and 1938 transitions. [2023-11-06 22:57:22,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 22:57:22,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1765 states and 1938 transitions. [2023-11-06 22:57:22,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 22:57:22,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:57:22,585 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:57:22,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 (18)] Ended with exit code 0 [2023-11-06 22:57:22,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:22,802 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:57:22,803 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:57:22,803 INFO L85 PathProgramCache]: Analyzing trace with hash 922128590, now seen corresponding path program 5 times [2023-11-06 22:57:22,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:57:22,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2114139212] [2023-11-06 22:57:22,804 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:57:22,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:57:22,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:57:22,807 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:57:22,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 (19)] Waiting until timeout for monitored process [2023-11-06 22:57:24,517 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 22:57:24,517 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:57:24,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 58 conjunts are in the unsatisfiable core [2023-11-06 22:57:24,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:57:24,569 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:57:24,711 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 22:57:24,711 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-06 22:57:24,787 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 22:57:24,927 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-06 22:57:26,305 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 22:57:26,305 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-06 22:57:26,362 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-06 22:57:26,413 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 22:57:26,413 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:57:29,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:57:29,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2114139212] [2023-11-06 22:57:29,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2114139212] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:57:29,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [316407975] [2023-11-06 22:57:29,040 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 22:57:29,040 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:57:29,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:57:29,055 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:57:29,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-11-06 22:58:43,134 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 22:58:43,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:58:43,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-06 22:58:43,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:58:43,370 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:58:43,526 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 22:58:43,527 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-06 22:58:43,563 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 22:58:43,643 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-06 22:58:44,876 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 22:58:44,876 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-06 22:58:44,927 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-06 22:58:44,939 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 22:58:44,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:58:47,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [316407975] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:58:47,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:58:47,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-06 22:58:47,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925828479] [2023-11-06 22:58:47,484 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:58:47,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 22:58:47,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:58:47,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 22:58:47,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=99, Unknown=3, NotChecked=0, Total=132 [2023-11-06 22:58:47,487 INFO L87 Difference]: Start difference. First operand 1765 states and 1938 transitions. Second operand has 9 states, 7 states have (on average 9.571428571428571) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:01,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:59:01,147 INFO L93 Difference]: Finished difference Result 2093 states and 2254 transitions. [2023-11-06 22:59:01,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 22:59:01,148 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 9.571428571428571) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2023-11-06 22:59:01,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:59:01,152 INFO L225 Difference]: With dead ends: 2093 [2023-11-06 22:59:01,152 INFO L226 Difference]: Without dead ends: 2089 [2023-11-06 22:59:01,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 214 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=49, Invalid=158, Unknown=3, NotChecked=0, Total=210 [2023-11-06 22:59:01,153 INFO L413 NwaCegarLoop]: 1063 mSDtfsCounter, 1143 mSDsluCounter, 3974 mSDsCounter, 0 mSdLazyCounter, 4371 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1153 SdHoareTripleChecker+Valid, 5037 SdHoareTripleChecker+Invalid, 4382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:59:01,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1153 Valid, 5037 Invalid, 4382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 4371 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2023-11-06 22:59:01,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2023-11-06 22:59:01,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1813. [2023-11-06 22:59:01,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1113 states have (on average 1.7610062893081762) internal successors, (1960), 1801 states have internal predecessors, (1960), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-06 22:59:01,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 1986 transitions. [2023-11-06 22:59:01,193 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 1986 transitions. Word has length 111 [2023-11-06 22:59:01,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:59:01,194 INFO L495 AbstractCegarLoop]: Abstraction has 1813 states and 1986 transitions. [2023-11-06 22:59:01,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 9.571428571428571) internal successors, (67), 9 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:59:01,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 1986 transitions. [2023-11-06 22:59:01,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 22:59:01,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:59:01,196 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:59:01,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:01,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:59:01,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:59:01,609 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 928 more)] === [2023-11-06 22:59:01,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:59:01,609 INFO L85 PathProgramCache]: Analyzing trace with hash 922128591, now seen corresponding path program 1 times [2023-11-06 22:59:01,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:59:01,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091423069] [2023-11-06 22:59:01,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:01,610 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:59:01,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:59:01,611 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:59:01,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/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 (21)] Waiting until timeout for monitored process [2023-11-06 22:59:02,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:59:02,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 108 conjunts are in the unsatisfiable core [2023-11-06 22:59:02,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:59:02,575 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 22:59:02,751 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 22:59:02,751 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-06 22:59:02,763 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 22:59:02,796 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-06 22:59:02,817 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 22:59:02,961 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-06 22:59:02,968 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2023-11-06 22:59:03,983 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 22:59:03,984 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-06 22:59:04,002 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 30 treesize of output 13 [2023-11-06 22:59:04,064 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-06 22:59:04,075 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 9 treesize of output 3 [2023-11-06 22:59:04,112 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 22:59:04,112 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:59:05,858 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_2666 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2665 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2665) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2666) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_2665 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2665) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd .cse1 (_ bv20 32))))))) is different from false [2023-11-06 22:59:05,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:59:05,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091423069] [2023-11-06 22:59:05,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091423069] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:59:05,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1010875361] [2023-11-06 22:59:05,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:59:05,868 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:59:05,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:59:05,869 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:59:05,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_514e56ec-4c0d-4a23-b861-fe09985814c7/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process