./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 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_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:16:00,887 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:16:00,959 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-12 02:16:00,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:16:00,970 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:16:01,017 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:16:01,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:16:01,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:16:01,021 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:16:01,027 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:16:01,027 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:16:01,028 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:16:01,029 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:16:01,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:16:01,031 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:16:01,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:16:01,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:16:01,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:16:01,033 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:16:01,034 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:16:01,034 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:16:01,035 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:16:01,036 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:16:01,036 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:16:01,037 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:16:01,055 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:16:01,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:16:01,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:16:01,056 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:16:01,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:16:01,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:16:01,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:16:01,058 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:16:01,059 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:16:01,059 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:16:01,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:16:01,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:16:01,062 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:16:01,062 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_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b [2023-11-12 02:16:01,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:16:01,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:16:01,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:16:01,485 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:16:01,486 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:16:01,488 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2023-11-12 02:16:04,675 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:16:05,061 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:16:05,061 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2023-11-12 02:16:05,104 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/data/936a5382f/8fbd9f4b434f4164b049b9d38bad0663/FLAGaf9945fea [2023-11-12 02:16:05,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/data/936a5382f/8fbd9f4b434f4164b049b9d38bad0663 [2023-11-12 02:16:05,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:16:05,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:16:05,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:16:05,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:16:05,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:16:05,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:16:05" (1/1) ... [2023-11-12 02:16:05,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ceb4280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:05, skipping insertion in model container [2023-11-12 02:16:05,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:16:05" (1/1) ... [2023-11-12 02:16:05,245 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:16:06,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:16:06,043 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-12 02:16:06,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@58e23475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:06, skipping insertion in model container [2023-11-12 02:16:06,044 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:16:06,045 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 02:16:06,047 INFO L158 Benchmark]: Toolchain (without parser) took 911.73ms. Allocated memory is still 138.4MB. Free memory was 93.1MB in the beginning and 69.6MB in the end (delta: 23.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-12 02:16:06,048 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 138.4MB. Free memory is still 109.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:16:06,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 902.01ms. Allocated memory is still 138.4MB. Free memory was 92.7MB in the beginning and 70.0MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 02:16:06,051 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 138.4MB. Free memory is still 109.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 902.01ms. Allocated memory is still 138.4MB. Free memory was 92.7MB in the beginning and 70.0MB in the end (delta: 22.6MB). Peak memory consumption was 21.0MB. 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_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:16:08,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:16:08,739 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-12 02:16:08,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:16:08,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:16:08,804 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:16:08,805 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:16:08,806 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:16:08,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:16:08,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:16:08,813 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:16:08,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:16:08,814 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:16:08,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:16:08,816 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:16:08,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:16:08,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:16:08,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:16:08,818 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 02:16:08,819 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 02:16:08,820 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 02:16:08,820 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:16:08,821 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:16:08,821 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:16:08,822 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:16:08,822 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:16:08,823 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:16:08,823 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:16:08,824 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:16:08,824 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:16:08,826 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:16:08,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:16:08,826 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:16:08,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:16:08,827 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:16:08,827 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:16:08,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:16:08,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:16:08,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:16:08,829 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:16:08,830 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:16:08,830 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_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c78ec383567aee735f8895b5666134248c3b9de1b96295d83b3c1c6979534c2b [2023-11-12 02:16:09,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:16:09,251 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:16:09,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:16:09,256 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:16:09,257 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:16:09,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2023-11-12 02:16:12,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:16:12,929 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:16:12,930 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-2.i [2023-11-12 02:16:12,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/data/6a349e08e/9785c196887c4fd6b59a533eb2160fec/FLAG3ae232ac9 [2023-11-12 02:16:12,992 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/data/6a349e08e/9785c196887c4fd6b59a533eb2160fec [2023-11-12 02:16:12,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:16:13,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:16:13,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:16:13,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:16:13,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:16:13,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:16:12" (1/1) ... [2023-11-12 02:16:13,014 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501cf43b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:13, skipping insertion in model container [2023-11-12 02:16:13,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:16:12" (1/1) ... [2023-11-12 02:16:13,129 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:16:13,970 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:16:13,984 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 02:16:13,998 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:16:14,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:16:14,122 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:16:14,280 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:16:14,317 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:16:14,325 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:16:14,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14 WrapperNode [2023-11-12 02:16:14,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:16:14,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:16:14,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:16:14,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:16:14,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (1/1) ... [2023-11-12 02:16:14,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (1/1) ... [2023-11-12 02:16:14,498 INFO L138 Inliner]: procedures = 180, calls = 441, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1585 [2023-11-12 02:16:14,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:16:14,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:16:14,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:16:14,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:16:14,510 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (1/1) ... [2023-11-12 02:16:14,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (1/1) ... [2023-11-12 02:16:14,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (1/1) ... [2023-11-12 02:16:14,547 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (1/1) ... [2023-11-12 02:16:14,647 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (1/1) ... [2023-11-12 02:16:14,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (1/1) ... [2023-11-12 02:16:14,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (1/1) ... [2023-11-12 02:16:14,715 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (1/1) ... [2023-11-12 02:16:14,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:16:14,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:16:14,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:16:14,729 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:16:14,729 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (1/1) ... [2023-11-12 02:16:14,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:16:14,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:16:14,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:16:14,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:16:14,814 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-12 02:16:14,814 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-12 02:16:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-12 02:16:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:16:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 02:16:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 02:16:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:16:14,815 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:16:14,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:16:14,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:16:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:16:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:16:14,818 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 02:16:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:16:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:16:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:16:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:16:14,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:16:14,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:16:15,121 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:16:15,123 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:16:15,171 WARN L817 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-12 02:16:22,814 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:16:22,839 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:16:22,840 INFO L302 CfgBuilder]: Removed 92 assume(true) statements. [2023-11-12 02:16:22,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:22 BoogieIcfgContainer [2023-11-12 02:16:22,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:16:22,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:16:22,849 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:16:22,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:16:22,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:16:12" (1/3) ... [2023-11-12 02:16:22,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d59f170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:16:22, skipping insertion in model container [2023-11-12 02:16:22,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:16:14" (2/3) ... [2023-11-12 02:16:22,855 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d59f170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:16:22, skipping insertion in model container [2023-11-12 02:16:22,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:16:22" (3/3) ... [2023-11-12 02:16:22,857 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-2.i [2023-11-12 02:16:22,876 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:16:22,877 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 833 error locations. [2023-11-12 02:16:22,959 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:16:22,965 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;@3d385e90, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:16:22,966 INFO L358 AbstractCegarLoop]: Starting to check reachability of 833 error locations. [2023-11-12 02:16:22,976 INFO L276 IsEmpty]: Start isEmpty. Operand has 1669 states, 825 states have (on average 2.227878787878788) internal successors, (1838), 1659 states have internal predecessors, (1838), 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) [2023-11-12 02:16:22,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 02:16:22,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:22,983 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:16:22,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-12 02:16:22,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:22,989 INFO L85 PathProgramCache]: Analyzing trace with hash 45876316, now seen corresponding path program 1 times [2023-11-12 02:16:23,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:16:23,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [58772508] [2023-11-12 02:16:23,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:23,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:23,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:16:23,002 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:16:23,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 02:16:23,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:23,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:16:23,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:23,298 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-12 02:16:23,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:23,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:23,315 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:16:23,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [58772508] [2023-11-12 02:16:23,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [58772508] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:23,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:23,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:16:23,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775523583] [2023-11-12 02:16:23,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:23,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:16:23,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:16:23,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:16:23,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:16:23,360 INFO L87 Difference]: Start difference. First operand has 1669 states, 825 states have (on average 2.227878787878788) internal successors, (1838), 1659 states have internal predecessors, (1838), 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) [2023-11-12 02:16:27,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:27,585 INFO L93 Difference]: Finished difference Result 1914 states and 2051 transitions. [2023-11-12 02:16:27,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:16:27,587 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 [2023-11-12 02:16:27,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:16:27,616 INFO L225 Difference]: With dead ends: 1914 [2023-11-12 02:16:27,616 INFO L226 Difference]: Without dead ends: 1912 [2023-11-12 02:16:27,618 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 [2023-11-12 02:16:27,621 INFO L413 NwaCegarLoop]: 1183 mSDtfsCounter, 1375 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 991 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:16:27,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 1563 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 991 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-11-12 02:16:27,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1912 states. [2023-11-12 02:16:27,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1912 to 1636. [2023-11-12 02:16:27,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 895 states have (on average 1.970949720670391) internal successors, (1764), 1626 states have internal predecessors, (1764), 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) [2023-11-12 02:16:27,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 1788 transitions. [2023-11-12 02:16:27,749 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 1788 transitions. Word has length 5 [2023-11-12 02:16:27,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:16:27,750 INFO L495 AbstractCegarLoop]: Abstraction has 1636 states and 1788 transitions. [2023-11-12 02:16:27,750 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) [2023-11-12 02:16:27,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 1788 transitions. [2023-11-12 02:16:27,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 02:16:27,751 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:27,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 02:16:27,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-12 02:16:27,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:27,961 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-12 02:16:27,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:27,962 INFO L85 PathProgramCache]: Analyzing trace with hash 45876317, now seen corresponding path program 1 times [2023-11-12 02:16:27,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:16:27,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688018063] [2023-11-12 02:16:27,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:27,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:27,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:16:27,968 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:16:27,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 02:16:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:28,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:16:28,155 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:28,164 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 02:16:28,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:28,185 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:28,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:16:28,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688018063] [2023-11-12 02:16:28,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [688018063] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:28,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:28,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:16:28,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078704262] [2023-11-12 02:16:28,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:28,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:16:28,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:16:28,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:16:28,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:16:28,190 INFO L87 Difference]: Start difference. First operand 1636 states and 1788 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) [2023-11-12 02:16:33,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:33,798 INFO L93 Difference]: Finished difference Result 2165 states and 2368 transitions. [2023-11-12 02:16:33,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:16:33,799 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 [2023-11-12 02:16:33,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:16:33,811 INFO L225 Difference]: With dead ends: 2165 [2023-11-12 02:16:33,812 INFO L226 Difference]: Without dead ends: 2165 [2023-11-12 02:16:33,812 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 [2023-11-12 02:16:33,814 INFO L413 NwaCegarLoop]: 1573 mSDtfsCounter, 751 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 1067 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 2291 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-11-12 02:16:33,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 2291 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1067 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-11-12 02:16:33,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2023-11-12 02:16:33,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 1796. [2023-11-12 02:16:33,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1796 states, 1065 states have (on average 1.9474178403755869) internal successors, (2074), 1786 states have internal predecessors, (2074), 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) [2023-11-12 02:16:33,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1796 states to 1796 states and 2098 transitions. [2023-11-12 02:16:33,870 INFO L78 Accepts]: Start accepts. Automaton has 1796 states and 2098 transitions. Word has length 5 [2023-11-12 02:16:33,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:16:33,871 INFO L495 AbstractCegarLoop]: Abstraction has 1796 states and 2098 transitions. [2023-11-12 02:16:33,871 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) [2023-11-12 02:16:33,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1796 states and 2098 transitions. [2023-11-12 02:16:33,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 02:16:33,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:33,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:16:33,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:34,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:34,083 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-12 02:16:34,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:34,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1423857071, now seen corresponding path program 1 times [2023-11-12 02:16:34,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:16:34,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695480947] [2023-11-12 02:16:34,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:34,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:34,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:16:34,139 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:16:34,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-12 02:16:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:34,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:16:34,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:34,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:34,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:34,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:16:34,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695480947] [2023-11-12 02:16:34,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [695480947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:34,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:34,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:34,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129498040] [2023-11-12 02:16:34,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:34,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:16:34,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:16:34,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:16:34,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:16:34,333 INFO L87 Difference]: Start difference. First operand 1796 states and 2098 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) [2023-11-12 02:16:34,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:34,516 INFO L93 Difference]: Finished difference Result 3372 states and 3965 transitions. [2023-11-12 02:16:34,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:16:34,521 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 [2023-11-12 02:16:34,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:16:34,541 INFO L225 Difference]: With dead ends: 3372 [2023-11-12 02:16:34,541 INFO L226 Difference]: Without dead ends: 3372 [2023-11-12 02:16:34,541 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 [2023-11-12 02:16:34,545 INFO L413 NwaCegarLoop]: 2078 mSDtfsCounter, 1383 mSDsluCounter, 1628 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1394 SdHoareTripleChecker+Valid, 3706 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 [2023-11-12 02:16:34,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1394 Valid, 3706 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:16:34,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3372 states. [2023-11-12 02:16:34,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3372 to 1798. [2023-11-12 02:16:34,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1067 states have (on average 1.9456419868791002) internal successors, (2076), 1788 states have internal predecessors, (2076), 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) [2023-11-12 02:16:34,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2100 transitions. [2023-11-12 02:16:34,632 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2100 transitions. Word has length 6 [2023-11-12 02:16:34,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:16:34,632 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 2100 transitions. [2023-11-12 02:16:34,632 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) [2023-11-12 02:16:34,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2100 transitions. [2023-11-12 02:16:34,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 02:16:34,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:34,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:34,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:34,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:34,845 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-12 02:16:34,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:34,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1344610650, now seen corresponding path program 1 times [2023-11-12 02:16:34,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:16:34,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789177663] [2023-11-12 02:16:34,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:34,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:34,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:16:34,849 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:16:34,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-12 02:16:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:35,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:16:35,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:35,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:35,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:35,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:16:35,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789177663] [2023-11-12 02:16:35,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789177663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:35,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:35,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:35,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104960082] [2023-11-12 02:16:35,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:35,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:16:35,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:16:35,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:16:35,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:16:35,093 INFO L87 Difference]: Start difference. First operand 1798 states and 2100 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) [2023-11-12 02:16:35,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:35,148 INFO L93 Difference]: Finished difference Result 1756 states and 2057 transitions. [2023-11-12 02:16:35,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:16:35,149 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 [2023-11-12 02:16:35,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:16:35,160 INFO L225 Difference]: With dead ends: 1756 [2023-11-12 02:16:35,161 INFO L226 Difference]: Without dead ends: 1756 [2023-11-12 02:16:35,161 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 [2023-11-12 02:16:35,163 INFO L413 NwaCegarLoop]: 1584 mSDtfsCounter, 81 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 3096 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:16:35,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 3096 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:16:35,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2023-11-12 02:16:35,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1756. [2023-11-12 02:16:35,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1756 states, 1049 states have (on average 1.9380362249761678) internal successors, (2033), 1746 states have internal predecessors, (2033), 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) [2023-11-12 02:16:35,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1756 states to 1756 states and 2057 transitions. [2023-11-12 02:16:35,218 INFO L78 Accepts]: Start accepts. Automaton has 1756 states and 2057 transitions. Word has length 11 [2023-11-12 02:16:35,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:16:35,219 INFO L495 AbstractCegarLoop]: Abstraction has 1756 states and 2057 transitions. [2023-11-12 02:16:35,219 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) [2023-11-12 02:16:35,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1756 states and 2057 transitions. [2023-11-12 02:16:35,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 02:16:35,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:35,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:16:35,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:35,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:35,437 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-12 02:16:35,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:35,437 INFO L85 PathProgramCache]: Analyzing trace with hash 614317568, now seen corresponding path program 1 times [2023-11-12 02:16:35,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:16:35,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [251362295] [2023-11-12 02:16:35,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:35,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:35,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:16:35,439 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:16:35,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-12 02:16:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:35,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:16:35,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:35,684 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:35,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:16:35,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [251362295] [2023-11-12 02:16:35,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [251362295] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:35,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:35,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:35,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792321920] [2023-11-12 02:16:35,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:35,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:16:35,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:16:35,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:16:35,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:16:35,687 INFO L87 Difference]: Start difference. First operand 1756 states and 2057 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) [2023-11-12 02:16:35,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:35,833 INFO L93 Difference]: Finished difference Result 1735 states and 2029 transitions. [2023-11-12 02:16:35,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:16:35,834 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 [2023-11-12 02:16:35,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:16:35,844 INFO L225 Difference]: With dead ends: 1735 [2023-11-12 02:16:35,844 INFO L226 Difference]: Without dead ends: 1735 [2023-11-12 02:16:35,844 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 [2023-11-12 02:16:35,845 INFO L413 NwaCegarLoop]: 1539 mSDtfsCounter, 62 mSDsluCounter, 3044 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 4583 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:16:35,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 4583 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:16:35,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2023-11-12 02:16:35,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1734. [2023-11-12 02:16:35,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1734 states, 1041 states have (on average 1.92507204610951) internal successors, (2004), 1724 states have internal predecessors, (2004), 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) [2023-11-12 02:16:35,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 2028 transitions. [2023-11-12 02:16:35,899 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 2028 transitions. Word has length 13 [2023-11-12 02:16:35,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:16:35,900 INFO L495 AbstractCegarLoop]: Abstraction has 1734 states and 2028 transitions. [2023-11-12 02:16:35,900 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) [2023-11-12 02:16:35,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 2028 transitions. [2023-11-12 02:16:35,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-12 02:16:35,902 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:35,902 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] [2023-11-12 02:16:35,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:36,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:36,121 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-12 02:16:36,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:36,122 INFO L85 PathProgramCache]: Analyzing trace with hash -957630610, now seen corresponding path program 1 times [2023-11-12 02:16:36,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:16:36,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722107016] [2023-11-12 02:16:36,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:36,123 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:36,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:16:36,124 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:16:36,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-12 02:16:36,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:36,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:16:36,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:36,343 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-12 02:16:36,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:36,469 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:36,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:16:36,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722107016] [2023-11-12 02:16:36,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722107016] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:36,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:36,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:36,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067205144] [2023-11-12 02:16:36,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:36,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:16:36,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:16:36,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:16:36,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:16:36,473 INFO L87 Difference]: Start difference. First operand 1734 states and 2028 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) [2023-11-12 02:16:40,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:40,974 INFO L93 Difference]: Finished difference Result 2007 states and 2286 transitions. [2023-11-12 02:16:40,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:16:40,974 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 [2023-11-12 02:16:40,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:16:40,985 INFO L225 Difference]: With dead ends: 2007 [2023-11-12 02:16:40,985 INFO L226 Difference]: Without dead ends: 2007 [2023-11-12 02:16:40,985 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 [2023-11-12 02:16:40,986 INFO L413 NwaCegarLoop]: 886 mSDtfsCounter, 1304 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 1741 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 1974 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1741 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-12 02:16:40,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 1974 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1741 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-12 02:16:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2023-11-12 02:16:41,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 1730. [2023-11-12 02:16:41,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1730 states, 1041 states have (on average 1.9212295869356388) internal successors, (2000), 1720 states have internal predecessors, (2000), 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) [2023-11-12 02:16:41,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1730 states to 1730 states and 2024 transitions. [2023-11-12 02:16:41,047 INFO L78 Accepts]: Start accepts. Automaton has 1730 states and 2024 transitions. Word has length 27 [2023-11-12 02:16:41,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:16:41,048 INFO L495 AbstractCegarLoop]: Abstraction has 1730 states and 2024 transitions. [2023-11-12 02:16:41,048 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) [2023-11-12 02:16:41,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1730 states and 2024 transitions. [2023-11-12 02:16:41,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-12 02:16:41,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:41,049 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] [2023-11-12 02:16:41,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:41,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:41,262 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-12 02:16:41,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:41,263 INFO L85 PathProgramCache]: Analyzing trace with hash -957630609, now seen corresponding path program 1 times [2023-11-12 02:16:41,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:16:41,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1491591681] [2023-11-12 02:16:41,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:41,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:41,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:16:41,265 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:16:41,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-12 02:16:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:41,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:16:41,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:41,510 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 02:16:41,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:41,746 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:41,746 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:16:41,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1491591681] [2023-11-12 02:16:41,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1491591681] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:41,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:41,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:41,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301013492] [2023-11-12 02:16:41,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:41,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:16:41,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:16:41,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:16:41,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:16:41,749 INFO L87 Difference]: Start difference. First operand 1730 states and 2024 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) [2023-11-12 02:16:48,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:48,671 INFO L93 Difference]: Finished difference Result 2096 states and 2291 transitions. [2023-11-12 02:16:48,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:16:48,672 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 [2023-11-12 02:16:48,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:16:48,683 INFO L225 Difference]: With dead ends: 2096 [2023-11-12 02:16:48,683 INFO L226 Difference]: Without dead ends: 2096 [2023-11-12 02:16:48,684 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 [2023-11-12 02:16:48,684 INFO L413 NwaCegarLoop]: 1278 mSDtfsCounter, 682 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 1795 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 687 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 1798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2023-11-12 02:16:48,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [687 Valid, 2734 Invalid, 1798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1795 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2023-11-12 02:16:48,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2023-11-12 02:16:48,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1726. [2023-11-12 02:16:48,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1726 states, 1041 states have (on average 1.9173871277617676) internal successors, (1996), 1716 states have internal predecessors, (1996), 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) [2023-11-12 02:16:48,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1726 states to 1726 states and 2020 transitions. [2023-11-12 02:16:48,726 INFO L78 Accepts]: Start accepts. Automaton has 1726 states and 2020 transitions. Word has length 27 [2023-11-12 02:16:48,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:16:48,726 INFO L495 AbstractCegarLoop]: Abstraction has 1726 states and 2020 transitions. [2023-11-12 02:16:48,727 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) [2023-11-12 02:16:48,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1726 states and 2020 transitions. [2023-11-12 02:16:48,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-12 02:16:48,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:48,729 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] [2023-11-12 02:16:48,743 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-12 02:16:48,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:48,941 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-12 02:16:48,942 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:48,942 INFO L85 PathProgramCache]: Analyzing trace with hash -3860248, now seen corresponding path program 1 times [2023-11-12 02:16:48,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:16:48,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967370078] [2023-11-12 02:16:48,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:48,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:48,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:16:48,946 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:16:48,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-12 02:16:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:49,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:16:49,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:49,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:49,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:49,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:16:49,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967370078] [2023-11-12 02:16:49,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967370078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:49,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:49,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:16:49,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120155455] [2023-11-12 02:16:49,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:49,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:16:49,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:16:49,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:16:49,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:16:49,285 INFO L87 Difference]: Start difference. First operand 1726 states and 2020 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) [2023-11-12 02:16:49,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:49,365 INFO L93 Difference]: Finished difference Result 1720 states and 2010 transitions. [2023-11-12 02:16:49,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:16:49,366 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 [2023-11-12 02:16:49,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:16:49,375 INFO L225 Difference]: With dead ends: 1720 [2023-11-12 02:16:49,375 INFO L226 Difference]: Without dead ends: 1720 [2023-11-12 02:16:49,375 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 [2023-11-12 02:16:49,376 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 31 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 4561 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 [2023-11-12 02:16:49,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 4561 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:16:49,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2023-11-12 02:16:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1720. [2023-11-12 02:16:49,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1035 states have (on average 1.9188405797101449) internal successors, (1986), 1710 states have internal predecessors, (1986), 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) [2023-11-12 02:16:49,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2010 transitions. [2023-11-12 02:16:49,422 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2010 transitions. Word has length 43 [2023-11-12 02:16:49,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:16:49,423 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2010 transitions. [2023-11-12 02:16:49,423 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) [2023-11-12 02:16:49,423 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2010 transitions. [2023-11-12 02:16:49,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-12 02:16:49,427 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:49,428 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] [2023-11-12 02:16:49,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-12 02:16:49,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:49,641 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-12 02:16:49,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:49,641 INFO L85 PathProgramCache]: Analyzing trace with hash 168131124, now seen corresponding path program 1 times [2023-11-12 02:16:49,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:16:49,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335887798] [2023-11-12 02:16:49,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:49,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:49,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:16:49,643 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:16:49,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-12 02:16:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:49,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:16:49,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:50,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:50,291 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:50,291 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:16:50,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335887798] [2023-11-12 02:16:50,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335887798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:50,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:50,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:50,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022037913] [2023-11-12 02:16:50,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:50,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:16:50,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:16:50,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:16:50,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:16:50,294 INFO L87 Difference]: Start difference. First operand 1720 states and 2010 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) [2023-11-12 02:16:50,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:16:50,580 INFO L93 Difference]: Finished difference Result 1964 states and 2263 transitions. [2023-11-12 02:16:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:16:50,585 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 [2023-11-12 02:16:50,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:16:50,594 INFO L225 Difference]: With dead ends: 1964 [2023-11-12 02:16:50,594 INFO L226 Difference]: Without dead ends: 1964 [2023-11-12 02:16:50,594 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 [2023-11-12 02:16:50,595 INFO L413 NwaCegarLoop]: 1620 mSDtfsCounter, 271 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 3035 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:16:50,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 3035 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:16:50,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2023-11-12 02:16:50,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1767. [2023-11-12 02:16:50,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1767 states, 1082 states have (on average 1.8789279112754158) internal successors, (2033), 1757 states have internal predecessors, (2033), 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) [2023-11-12 02:16:50,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1767 states to 1767 states and 2057 transitions. [2023-11-12 02:16:50,632 INFO L78 Accepts]: Start accepts. Automaton has 1767 states and 2057 transitions. Word has length 51 [2023-11-12 02:16:50,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:16:50,632 INFO L495 AbstractCegarLoop]: Abstraction has 1767 states and 2057 transitions. [2023-11-12 02:16:50,632 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) [2023-11-12 02:16:50,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1767 states and 2057 transitions. [2023-11-12 02:16:50,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-12 02:16:50,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:16:50,634 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] [2023-11-12 02:16:50,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:16:50,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:50,848 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-12 02:16:50,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:16:50,848 INFO L85 PathProgramCache]: Analyzing trace with hash 754975115, now seen corresponding path program 1 times [2023-11-12 02:16:50,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:16:50,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [345722009] [2023-11-12 02:16:50,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:16:50,849 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 02:16:50,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:16:50,851 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 02:16:50,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3bd99b73-b2c4-4476-8a7b-8c18b6a38589/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-12 02:16:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:16:51,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:16:51,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:16:51,284 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-12 02:16:51,294 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-12 02:16:51,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:16:51,883 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-12 02:16:51,903 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-12 02:16:51,903 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-12 02:16:51,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:16:51,925 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:16:51,925 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:16:51,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [345722009] [2023-11-12 02:16:51,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [345722009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:16:51,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:16:51,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:16:51,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128148296] [2023-11-12 02:16:51,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:16:51,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:16:51,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:16:51,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:16:51,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:16:51,928 INFO L87 Difference]: Start difference. First operand 1767 states and 2057 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)