./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu --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 cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:53:44,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:53:44,776 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:53:44,782 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:53:44,783 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:53:44,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:53:44,814 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:53:44,815 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:53:44,816 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:53:44,817 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:53:44,818 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:53:44,819 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:53:44,819 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:53:44,820 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:53:44,821 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:53:44,822 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:53:44,823 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:53:44,823 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:53:44,824 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:53:44,825 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:53:44,826 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:53:44,827 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:53:44,827 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:53:44,828 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:53:44,829 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:53:44,829 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:53:44,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:53:44,831 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:53:44,831 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:53:44,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:53:44,833 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:53:44,833 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:53:44,834 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:53:44,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:53:44,834 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:53:44,835 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:53:44,835 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:53:44,836 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:53:44,836 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_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d [2023-11-19 07:53:45,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:53:45,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:53:45,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:53:45,205 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:53:45,207 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:53:45,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2023-11-19 07:53:48,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:53:48,732 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:53:48,736 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2023-11-19 07:53:48,758 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/data/9615048a9/60d3abab68c140d2aa1d95656cd1e385/FLAGc95c17952 [2023-11-19 07:53:48,775 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/data/9615048a9/60d3abab68c140d2aa1d95656cd1e385 [2023-11-19 07:53:48,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:53:48,779 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:53:48,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:53:48,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:53:48,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:53:48,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:48" (1/1) ... [2023-11-19 07:53:48,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fee0ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:48, skipping insertion in model container [2023-11-19 07:53:48,790 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:48" (1/1) ... [2023-11-19 07:53:48,836 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:53:49,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:53:49,263 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) [2023-11-19 07:53:49,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e45c4cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:49, skipping insertion in model container [2023-11-19 07:53:49,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:53:49,265 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:53:49,267 INFO L158 Benchmark]: Toolchain (without parser) took 486.57ms. Allocated memory is still 169.9MB. Free memory was 123.6MB in the beginning and 111.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 07:53:49,268 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:53:49,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.58ms. Allocated memory is still 169.9MB. Free memory was 123.0MB in the beginning and 111.2MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 07:53:49,270 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 119.5MB. Free memory is still 66.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.58ms. Allocated memory is still 169.9MB. Free memory was 123.0MB in the beginning and 111.2MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 556]: 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_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu --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 cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:53:51,873 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:53:51,979 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 07:53:51,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:53:51,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:53:52,028 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:53:52,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:53:52,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:53:52,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:53:52,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:53:52,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:53:52,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:53:52,038 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:53:52,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:53:52,039 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:53:52,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:53:52,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:53:52,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:53:52,041 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:53:52,041 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:53:52,041 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:53:52,042 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:53:52,042 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:53:52,043 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:53:52,043 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:53:52,043 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:53:52,044 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:53:52,044 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:53:52,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:53:52,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:53:52,046 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:53:52,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:53:52,047 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:53:52,047 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:53:52,048 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:53:52,048 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:53:52,048 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:53:52,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:53:52,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:53:52,049 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:53:52,050 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:53:52,050 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_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1edb9fb334d503cba549895692ff1d9d77f795ecc0798895274120b4ed179d [2023-11-19 07:53:52,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:53:52,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:53:52,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:53:52,519 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:53:52,519 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:53:52,521 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2023-11-19 07:53:55,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:53:56,040 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:53:56,041 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/sv-benchmarks/c/memsafety-ext2/complex_data_creation_test02-2.i [2023-11-19 07:53:56,078 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/data/1ef3898f4/98b1320dab364669b2e91f0a34725cd0/FLAG2feeea26d [2023-11-19 07:53:56,095 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/data/1ef3898f4/98b1320dab364669b2e91f0a34725cd0 [2023-11-19 07:53:56,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:53:56,100 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:53:56,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:53:56,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:53:56,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:53:56,113 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:56" (1/1) ... [2023-11-19 07:53:56,114 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b40c11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:56, skipping insertion in model container [2023-11-19 07:53:56,114 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:56" (1/1) ... [2023-11-19 07:53:56,198 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:53:56,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:53:56,747 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:53:56,761 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:53:56,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:53:56,835 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:53:56,974 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:53:57,047 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:53:57,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57 WrapperNode [2023-11-19 07:53:57,048 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:53:57,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:53:57,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:53:57,051 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:53:57,062 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (1/1) ... [2023-11-19 07:53:57,091 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (1/1) ... [2023-11-19 07:53:57,139 INFO L138 Inliner]: procedures = 129, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 104 [2023-11-19 07:53:57,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:53:57,142 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:53:57,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:53:57,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:53:57,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (1/1) ... [2023-11-19 07:53:57,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (1/1) ... [2023-11-19 07:53:57,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (1/1) ... [2023-11-19 07:53:57,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (1/1) ... [2023-11-19 07:53:57,177 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (1/1) ... [2023-11-19 07:53:57,182 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (1/1) ... [2023-11-19 07:53:57,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (1/1) ... [2023-11-19 07:53:57,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (1/1) ... [2023-11-19 07:53:57,193 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:53:57,194 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:53:57,194 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:53:57,195 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:53:57,196 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (1/1) ... [2023-11-19 07:53:57,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:53:57,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:53:57,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:53:57,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:53:57,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:53:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:53:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure create_data [2023-11-19 07:53:57,292 INFO L138 BoogieDeclarations]: Found implementation of procedure create_data [2023-11-19 07:53:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:53:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:53:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:53:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:53:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:53:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:53:57,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:53:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:53:57,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:53:57,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:53:57,453 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:53:57,456 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:53:58,495 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:53:58,506 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:53:58,506 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-11-19 07:53:58,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:58 BoogieIcfgContainer [2023-11-19 07:53:58,512 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:53:58,514 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:53:58,515 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:53:58,519 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:53:58,519 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:53:56" (1/3) ... [2023-11-19 07:53:58,520 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aad0431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:58, skipping insertion in model container [2023-11-19 07:53:58,520 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:57" (2/3) ... [2023-11-19 07:53:58,521 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aad0431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:53:58, skipping insertion in model container [2023-11-19 07:53:58,521 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:58" (3/3) ... [2023-11-19 07:53:58,522 INFO L112 eAbstractionObserver]: Analyzing ICFG complex_data_creation_test02-2.i [2023-11-19 07:53:58,545 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:53:58,545 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 92 error locations. [2023-11-19 07:53:58,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:53:58,619 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;@5104943b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:53:58,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2023-11-19 07:53:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 195 states, 99 states have (on average 2.101010101010101) internal successors, (208), 191 states have internal predecessors, (208), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:53:58,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:53:58,633 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:53:58,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:53:58,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:53:58,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:58,643 INFO L85 PathProgramCache]: Analyzing trace with hash 5145481, now seen corresponding path program 1 times [2023-11-19 07:53:58,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:53:58,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [788009142] [2023-11-19 07:53:58,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:58,659 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 [2023-11-19 07:53:58,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:53:58,664 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:53:58,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:53:58,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:53:58,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 07:53:58,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:53:58,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:53:58,814 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:53:58,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:53:58,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [788009142] [2023-11-19 07:53:58,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [788009142] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:53:58,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:53:58,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:53:58,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743036133] [2023-11-19 07:53:58,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:53:58,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:53:58,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:53:58,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:53:58,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:53:58,879 INFO L87 Difference]: Start difference. First operand has 195 states, 99 states have (on average 2.101010101010101) internal successors, (208), 191 states have internal predecessors, (208), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-19 07:53:58,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:53:58,927 INFO L93 Difference]: Finished difference Result 195 states and 207 transitions. [2023-11-19 07:53:58,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:53:58,930 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2023-11-19 07:53:58,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:53:58,949 INFO L225 Difference]: With dead ends: 195 [2023-11-19 07:53:58,949 INFO L226 Difference]: Without dead ends: 193 [2023-11-19 07:53:58,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:53:58,956 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:53:58,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:53:58,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-19 07:53:59,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2023-11-19 07:53:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 98 states have (on average 2.0510204081632653) internal successors, (201), 189 states have internal predecessors, (201), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:53:59,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 205 transitions. [2023-11-19 07:53:59,049 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 205 transitions. Word has length 4 [2023-11-19 07:53:59,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:53:59,049 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 205 transitions. [2023-11-19 07:53:59,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-19 07:53:59,050 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 205 transitions. [2023-11-19 07:53:59,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:53:59,050 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:53:59,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:53:59,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:53:59,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:53:59,255 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:53:59,256 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:53:59,256 INFO L85 PathProgramCache]: Analyzing trace with hash 5143045, now seen corresponding path program 1 times [2023-11-19 07:53:59,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:53:59,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1715766625] [2023-11-19 07:53:59,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:53:59,258 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 [2023-11-19 07:53:59,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:53:59,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:53:59,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:53:59,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:53:59,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:53:59,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:53:59,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:53:59,484 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-19 07:53:59,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-19 07:53:59,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:53:59,507 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:53:59,507 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:53:59,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1715766625] [2023-11-19 07:53:59,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1715766625] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:53:59,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:53:59,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:53:59,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534255005] [2023-11-19 07:53:59,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:53:59,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:53:59,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:53:59,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:53:59,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:53:59,511 INFO L87 Difference]: Start difference. First operand 193 states and 205 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-19 07:54:00,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:00,321 INFO L93 Difference]: Finished difference Result 187 states and 199 transitions. [2023-11-19 07:54:00,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:54:00,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2023-11-19 07:54:00,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:00,324 INFO L225 Difference]: With dead ends: 187 [2023-11-19 07:54:00,324 INFO L226 Difference]: Without dead ends: 187 [2023-11-19 07:54:00,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:54:00,326 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 83 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:00,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 317 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:54:00,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-19 07:54:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 187. [2023-11-19 07:54:00,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 98 states have (on average 1.989795918367347) internal successors, (195), 183 states have internal predecessors, (195), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:00,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 199 transitions. [2023-11-19 07:54:00,341 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 199 transitions. Word has length 4 [2023-11-19 07:54:00,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:00,342 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 199 transitions. [2023-11-19 07:54:00,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-19 07:54:00,342 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 199 transitions. [2023-11-19 07:54:00,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:54:00,343 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:00,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:54:00,349 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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)] Ended with exit code 0 [2023-11-19 07:54:00,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:00,545 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:00,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:00,546 INFO L85 PathProgramCache]: Analyzing trace with hash 5143046, now seen corresponding path program 1 times [2023-11-19 07:54:00,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:00,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [658686027] [2023-11-19 07:54:00,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:00,547 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 [2023-11-19 07:54:00,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:00,548 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:00,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:54:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:00,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 07:54:00,632 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:00,652 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:54:00,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:54:00,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:54:00,768 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-19 07:54:00,788 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-19 07:54:00,789 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-19 07:54:00,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:00,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:00,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:00,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [658686027] [2023-11-19 07:54:00,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [658686027] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:00,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:00,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:54:00,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559031284] [2023-11-19 07:54:00,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:00,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:54:00,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:00,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:54:00,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:54:00,815 INFO L87 Difference]: Start difference. First operand 187 states and 199 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-19 07:54:01,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:01,662 INFO L93 Difference]: Finished difference Result 203 states and 218 transitions. [2023-11-19 07:54:01,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:54:01,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2023-11-19 07:54:01,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:01,667 INFO L225 Difference]: With dead ends: 203 [2023-11-19 07:54:01,667 INFO L226 Difference]: Without dead ends: 203 [2023-11-19 07:54:01,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:54:01,668 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 28 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:01,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 361 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:54:01,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-11-19 07:54:01,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 192. [2023-11-19 07:54:01,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 103 states have (on average 1.9611650485436893) internal successors, (202), 188 states have internal predecessors, (202), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:01,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 206 transitions. [2023-11-19 07:54:01,698 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 206 transitions. Word has length 4 [2023-11-19 07:54:01,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:01,700 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 206 transitions. [2023-11-19 07:54:01,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-19 07:54:01,701 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 206 transitions. [2023-11-19 07:54:01,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 07:54:01,701 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:01,701 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:54:01,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:54:01,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:01,903 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:01,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:01,904 INFO L85 PathProgramCache]: Analyzing trace with hash 159434512, now seen corresponding path program 1 times [2023-11-19 07:54:01,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:01,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [418933590] [2023-11-19 07:54:01,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:01,905 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 [2023-11-19 07:54:01,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:01,906 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:01,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:54:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:01,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:54:01,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:02,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:54:02,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:02,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:02,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:02,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [418933590] [2023-11-19 07:54:02,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [418933590] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:02,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:02,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:54:02,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819345923] [2023-11-19 07:54:02,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:02,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:02,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:02,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:02,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:02,036 INFO L87 Difference]: Start difference. First operand 192 states and 206 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) [2023-11-19 07:54:02,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:02,391 INFO L93 Difference]: Finished difference Result 190 states and 203 transitions. [2023-11-19 07:54:02,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:02,392 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 [2023-11-19 07:54:02,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:02,393 INFO L225 Difference]: With dead ends: 190 [2023-11-19 07:54:02,394 INFO L226 Difference]: Without dead ends: 190 [2023-11-19 07:54:02,394 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 [2023-11-19 07:54:02,395 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 18 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:02,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 279 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:54:02,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-19 07:54:02,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2023-11-19 07:54:02,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 103 states have (on average 1.9320388349514563) internal successors, (199), 186 states have internal predecessors, (199), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:02,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 203 transitions. [2023-11-19 07:54:02,408 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 203 transitions. Word has length 5 [2023-11-19 07:54:02,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:02,409 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 203 transitions. [2023-11-19 07:54:02,409 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) [2023-11-19 07:54:02,409 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 203 transitions. [2023-11-19 07:54:02,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 07:54:02,410 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:02,410 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 07:54:02,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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)] Ended with exit code 0 [2023-11-19 07:54:02,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:02,612 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:02,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:02,613 INFO L85 PathProgramCache]: Analyzing trace with hash 159434513, now seen corresponding path program 1 times [2023-11-19 07:54:02,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:02,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962681927] [2023-11-19 07:54:02,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:02,614 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 [2023-11-19 07:54:02,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:02,616 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:02,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:54:02,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:02,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:54:02,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:02,752 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:54:02,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:02,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:02,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:02,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962681927] [2023-11-19 07:54:02,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962681927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:02,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:02,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:54:02,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325183299] [2023-11-19 07:54:02,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:02,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:02,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:02,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:02,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:02,786 INFO L87 Difference]: Start difference. First operand 190 states and 203 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) [2023-11-19 07:54:03,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:03,226 INFO L93 Difference]: Finished difference Result 188 states and 200 transitions. [2023-11-19 07:54:03,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:03,227 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 [2023-11-19 07:54:03,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:03,229 INFO L225 Difference]: With dead ends: 188 [2023-11-19 07:54:03,229 INFO L226 Difference]: Without dead ends: 188 [2023-11-19 07:54:03,229 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 [2023-11-19 07:54:03,230 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 11 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:03,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 286 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:54:03,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-19 07:54:03,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-11-19 07:54:03,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 103 states have (on average 1.9029126213592233) internal successors, (196), 184 states have internal predecessors, (196), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:03,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 200 transitions. [2023-11-19 07:54:03,238 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 200 transitions. Word has length 5 [2023-11-19 07:54:03,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:03,238 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 200 transitions. [2023-11-19 07:54:03,238 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) [2023-11-19 07:54:03,239 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 200 transitions. [2023-11-19 07:54:03,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 07:54:03,239 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:03,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:03,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-11-19 07:54:03,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:03,442 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:03,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:03,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1660605353, now seen corresponding path program 1 times [2023-11-19 07:54:03,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:03,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769208818] [2023-11-19 07:54:03,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:03,443 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 [2023-11-19 07:54:03,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:03,445 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:03,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:54:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:03,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 07:54:03,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:03,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:54:03,598 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-19 07:54:03,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-19 07:54:03,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:54:03,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 07:54:03,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:03,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:03,745 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:03,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [769208818] [2023-11-19 07:54:03,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [769208818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:03,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:03,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:54:03,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892824062] [2023-11-19 07:54:03,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:03,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:54:03,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:03,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:54:03,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:54:03,747 INFO L87 Difference]: Start difference. First operand 188 states and 200 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:04,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:04,442 INFO L93 Difference]: Finished difference Result 190 states and 203 transitions. [2023-11-19 07:54:04,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:54:04,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-19 07:54:04,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:04,444 INFO L225 Difference]: With dead ends: 190 [2023-11-19 07:54:04,444 INFO L226 Difference]: Without dead ends: 190 [2023-11-19 07:54:04,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:54:04,445 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 6 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:04,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 628 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-19 07:54:04,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-19 07:54:04,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 189. [2023-11-19 07:54:04,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 104 states have (on average 1.8942307692307692) internal successors, (197), 185 states have internal predecessors, (197), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:04,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 201 transitions. [2023-11-19 07:54:04,453 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 201 transitions. Word has length 10 [2023-11-19 07:54:04,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:04,453 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 201 transitions. [2023-11-19 07:54:04,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:04,454 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 201 transitions. [2023-11-19 07:54:04,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 07:54:04,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:04,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:04,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-19 07:54:04,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:04,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:04,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:04,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1883038802, now seen corresponding path program 1 times [2023-11-19 07:54:04,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:04,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7641293] [2023-11-19 07:54:04,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:04,658 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 [2023-11-19 07:54:04,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:04,659 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:04,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:54:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:04,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:54:04,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:04,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:04,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:04,771 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:04,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7641293] [2023-11-19 07:54:04,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7641293] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:04,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:04,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:54:04,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662046328] [2023-11-19 07:54:04,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:04,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:54:04,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:04,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:54:04,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:54:04,773 INFO L87 Difference]: Start difference. First operand 189 states and 201 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:04,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:04,818 INFO L93 Difference]: Finished difference Result 269 states and 285 transitions. [2023-11-19 07:54:04,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:54:04,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-19 07:54:04,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:04,821 INFO L225 Difference]: With dead ends: 269 [2023-11-19 07:54:04,821 INFO L226 Difference]: Without dead ends: 269 [2023-11-19 07:54:04,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:54:04,823 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 84 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:04,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 569 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:54:04,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-19 07:54:04,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 233. [2023-11-19 07:54:04,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 147 states have (on average 1.91156462585034) internal successors, (281), 228 states have internal predecessors, (281), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:04,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 285 transitions. [2023-11-19 07:54:04,833 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 285 transitions. Word has length 12 [2023-11-19 07:54:04,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:04,835 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 285 transitions. [2023-11-19 07:54:04,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:04,838 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 285 transitions. [2023-11-19 07:54:04,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 07:54:04,838 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:04,839 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:04,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:05,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:05,042 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting create_dataErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:05,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:05,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1755333093, now seen corresponding path program 1 times [2023-11-19 07:54:05,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:05,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1369485133] [2023-11-19 07:54:05,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:05,043 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 [2023-11-19 07:54:05,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:05,044 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:05,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:54:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:05,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:54:05,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:05,159 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-19 07:54:05,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-11-19 07:54:05,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:05,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:05,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:05,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1369485133] [2023-11-19 07:54:05,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1369485133] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:05,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:05,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:54:05,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604730901] [2023-11-19 07:54:05,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:05,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:05,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:05,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:05,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:05,184 INFO L87 Difference]: Start difference. First operand 233 states and 285 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:05,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:05,600 INFO L93 Difference]: Finished difference Result 238 states and 283 transitions. [2023-11-19 07:54:05,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:05,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 07:54:05,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:05,603 INFO L225 Difference]: With dead ends: 238 [2023-11-19 07:54:05,603 INFO L226 Difference]: Without dead ends: 238 [2023-11-19 07:54:05,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:05,604 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 65 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:05,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 214 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-19 07:54:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-11-19 07:54:05,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 229. [2023-11-19 07:54:05,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 155 states have (on average 1.761290322580645) internal successors, (273), 224 states have internal predecessors, (273), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:05,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 277 transitions. [2023-11-19 07:54:05,613 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 277 transitions. Word has length 13 [2023-11-19 07:54:05,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:05,614 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 277 transitions. [2023-11-19 07:54:05,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:05,614 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 277 transitions. [2023-11-19 07:54:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 07:54:05,615 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:05,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:05,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:05,819 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:05,820 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting create_dataErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:05,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:05,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1755333092, now seen corresponding path program 1 times [2023-11-19 07:54:05,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:05,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601201305] [2023-11-19 07:54:05,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:05,821 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:05,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:05,822 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:05,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:54:05,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:05,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:54:05,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:05,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:54:05,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-19 07:54:05,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-19 07:54:05,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:05,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:05,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:05,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601201305] [2023-11-19 07:54:05,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601201305] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:05,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:05,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:54:05,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599253355] [2023-11-19 07:54:05,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:05,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:05,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:05,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:05,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:05,966 INFO L87 Difference]: Start difference. First operand 229 states and 277 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:06,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:06,460 INFO L93 Difference]: Finished difference Result 250 states and 291 transitions. [2023-11-19 07:54:06,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:06,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 07:54:06,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:06,463 INFO L225 Difference]: With dead ends: 250 [2023-11-19 07:54:06,463 INFO L226 Difference]: Without dead ends: 250 [2023-11-19 07:54:06,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:06,464 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 52 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:06,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 224 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:54:06,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-11-19 07:54:06,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 230. [2023-11-19 07:54:06,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 165 states have (on average 1.6181818181818182) internal successors, (267), 225 states have internal predecessors, (267), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:06,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 271 transitions. [2023-11-19 07:54:06,473 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 271 transitions. Word has length 13 [2023-11-19 07:54:06,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:06,473 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 271 transitions. [2023-11-19 07:54:06,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:06,474 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 271 transitions. [2023-11-19 07:54:06,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:54:06,474 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:06,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:06,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:54:06,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:06,677 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting create_dataErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:06,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:06,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1838603521, now seen corresponding path program 1 times [2023-11-19 07:54:06,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:06,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1858630146] [2023-11-19 07:54:06,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:06,679 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 [2023-11-19 07:54:06,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:06,680 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:06,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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 [2023-11-19 07:54:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:06,789 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:54:06,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:06,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:54:06,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:54:06,833 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 07:54:06,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-19 07:54:06,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:06,875 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:06,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:06,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1858630146] [2023-11-19 07:54:06,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1858630146] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:06,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:06,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:54:06,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423934608] [2023-11-19 07:54:06,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:06,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:54:06,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:06,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:54:06,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:54:06,878 INFO L87 Difference]: Start difference. First operand 230 states and 271 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:07,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:07,631 INFO L93 Difference]: Finished difference Result 287 states and 341 transitions. [2023-11-19 07:54:07,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:54:07,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-19 07:54:07,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:07,639 INFO L225 Difference]: With dead ends: 287 [2023-11-19 07:54:07,639 INFO L226 Difference]: Without dead ends: 287 [2023-11-19 07:54:07,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:54:07,640 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 29 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:07,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 441 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-19 07:54:07,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-19 07:54:07,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 238. [2023-11-19 07:54:07,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 173 states have (on average 1.6127167630057804) internal successors, (279), 233 states have internal predecessors, (279), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:07,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 283 transitions. [2023-11-19 07:54:07,651 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 283 transitions. Word has length 18 [2023-11-19 07:54:07,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:07,651 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 283 transitions. [2023-11-19 07:54:07,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:07,651 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 283 transitions. [2023-11-19 07:54:07,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:54:07,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:07,653 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:07,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:07,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:07,856 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting create_dataErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:07,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:07,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1838603520, now seen corresponding path program 1 times [2023-11-19 07:54:07,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:07,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862824963] [2023-11-19 07:54:07,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:07,857 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 [2023-11-19 07:54:07,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:07,858 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:07,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-19 07:54:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:07,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:54:07,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:07,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-19 07:54:07,986 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:54:08,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-19 07:54:08,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 07:54:08,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-19 07:54:08,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:08,178 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:08,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:08,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862824963] [2023-11-19 07:54:08,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862824963] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:08,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:08,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:54:08,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533275470] [2023-11-19 07:54:08,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:08,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:54:08,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:08,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:54:08,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:54:08,180 INFO L87 Difference]: Start difference. First operand 238 states and 283 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:09,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:09,074 INFO L93 Difference]: Finished difference Result 240 states and 281 transitions. [2023-11-19 07:54:09,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:54:09,075 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-19 07:54:09,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:09,077 INFO L225 Difference]: With dead ends: 240 [2023-11-19 07:54:09,077 INFO L226 Difference]: Without dead ends: 240 [2023-11-19 07:54:09,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:54:09,078 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 6 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:09,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 452 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:54:09,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-19 07:54:09,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2023-11-19 07:54:09,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 173 states have (on average 1.5895953757225434) internal successors, (275), 233 states have internal predecessors, (275), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 279 transitions. [2023-11-19 07:54:09,086 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 279 transitions. Word has length 18 [2023-11-19 07:54:09,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:09,087 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 279 transitions. [2023-11-19 07:54:09,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:09,087 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 279 transitions. [2023-11-19 07:54:09,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 07:54:09,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:09,088 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:09,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:09,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:09,291 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting create_dataErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:09,292 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1290773501, now seen corresponding path program 1 times [2023-11-19 07:54:09,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:09,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927575404] [2023-11-19 07:54:09,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:09,293 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 [2023-11-19 07:54:09,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:09,294 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:09,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-19 07:54:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:09,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:54:09,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:09,505 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-19 07:54:09,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2023-11-19 07:54:09,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 07:54:09,703 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-19 07:54:09,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-19 07:54:09,771 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-19 07:54:09,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:54:09,818 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:54:09,968 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_167 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (select (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse0) v_ArrVal_167) c_create_data_~data~0.base) .cse0))) (_ bv1 1)))) is different from false [2023-11-19 07:54:09,991 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:54:09,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 27 [2023-11-19 07:54:09,995 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32 [2023-11-19 07:54:10,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-19 07:54:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-11-19 07:54:10,055 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:10,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927575404] [2023-11-19 07:54:10,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927575404] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:54:10,056 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:54:10,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 10 [2023-11-19 07:54:10,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064676336] [2023-11-19 07:54:10,056 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:54:10,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:54:10,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:10,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:54:10,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=4, NotChecked=16, Total=110 [2023-11-19 07:54:10,059 INFO L87 Difference]: Start difference. First operand 238 states and 279 transitions. Second operand has 11 states, 10 states have (on average 3.5) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:11,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:11,578 INFO L93 Difference]: Finished difference Result 245 states and 283 transitions. [2023-11-19 07:54:11,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:54:11,579 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-11-19 07:54:11,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:11,581 INFO L225 Difference]: With dead ends: 245 [2023-11-19 07:54:11,581 INFO L226 Difference]: Without dead ends: 245 [2023-11-19 07:54:11,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=4, NotChecked=18, Total=132 [2023-11-19 07:54:11,582 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 52 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 107 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:11,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 761 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 484 Invalid, 0 Unknown, 107 Unchecked, 1.4s Time] [2023-11-19 07:54:11,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2023-11-19 07:54:11,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 237. [2023-11-19 07:54:11,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 173 states have (on average 1.5780346820809248) internal successors, (273), 232 states have internal predecessors, (273), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:11,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 277 transitions. [2023-11-19 07:54:11,591 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 277 transitions. Word has length 24 [2023-11-19 07:54:11,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:11,592 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 277 transitions. [2023-11-19 07:54:11,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.5) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:11,592 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 277 transitions. [2023-11-19 07:54:11,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 07:54:11,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:11,593 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:11,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:11,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:11,807 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting create_dataErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:11,807 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:11,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1290773500, now seen corresponding path program 1 times [2023-11-19 07:54:11,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:11,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661003127] [2023-11-19 07:54:11,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:11,808 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 [2023-11-19 07:54:11,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:11,810 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:11,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-19 07:54:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:12,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 07:54:12,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:12,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-19 07:54:12,047 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:54:12,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-19 07:54:12,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 07:54:12,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-19 07:54:12,338 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-19 07:54:12,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-19 07:54:12,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-19 07:54:12,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-19 07:54:12,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-19 07:54:12,520 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:12,521 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:54:12,917 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse1 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (and (forall ((v_ArrVal_208 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_209 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) .cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_208) c_create_data_~data~0.base) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_209) c_create_data_~data~0.base) .cse1)))) (forall ((v_ArrVal_208 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_208) c_create_data_~data~0.base) .cse1))) (bvule (bvadd (_ bv4 32) .cse0 .cse2) (bvadd (_ bv8 32) .cse0 .cse2)))))) is different from false [2023-11-19 07:54:13,001 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse2 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (and (forall ((v_ArrVal_208 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_208) c_create_data_~data~0.base) .cse3))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_208 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_209 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_208) c_create_data_~data~0.base) .cse3) .cse1) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_209) c_create_data_~data~0.base) .cse3))))))) is different from false [2023-11-19 07:54:13,066 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse1 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2))) (and (forall ((v_ArrVal_208 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_208) c_create_data_~data~0.base) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd (_ bv8 32) .cse0)))) (forall ((v_ArrVal_208 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_209 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| .cse1 v_ArrVal_208) c_create_data_~data~0.base) .cse2)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse1 v_ArrVal_209) c_create_data_~data~0.base) .cse2))))))) is different from false [2023-11-19 07:54:13,086 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:54:13,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 36 [2023-11-19 07:54:13,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 36 [2023-11-19 07:54:13,117 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:54:13,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2023-11-19 07:54:13,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:54:13,134 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 36 [2023-11-19 07:54:13,147 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:54:13,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21 [2023-11-19 07:54:13,157 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:54:13,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-19 07:54:13,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 4 not checked. [2023-11-19 07:54:13,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:13,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661003127] [2023-11-19 07:54:13,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661003127] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:54:13,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:54:13,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2023-11-19 07:54:13,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781119703] [2023-11-19 07:54:13,258 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:54:13,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 07:54:13,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:13,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 07:54:13,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=102, Unknown=3, NotChecked=66, Total=210 [2023-11-19 07:54:13,260 INFO L87 Difference]: Start difference. First operand 237 states and 277 transitions. Second operand has 15 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 15 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:16,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:16,479 INFO L93 Difference]: Finished difference Result 251 states and 291 transitions. [2023-11-19 07:54:16,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-19 07:54:16,482 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 15 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-11-19 07:54:16,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:16,484 INFO L225 Difference]: With dead ends: 251 [2023-11-19 07:54:16,485 INFO L226 Difference]: Without dead ends: 251 [2023-11-19 07:54:16,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=159, Unknown=3, NotChecked=84, Total=306 [2023-11-19 07:54:16,489 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 12 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 277 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:16,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 995 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 510 Invalid, 0 Unknown, 277 Unchecked, 2.9s Time] [2023-11-19 07:54:16,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-11-19 07:54:16,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 249. [2023-11-19 07:54:16,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 185 states have (on average 1.5405405405405406) internal successors, (285), 244 states have internal predecessors, (285), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:16,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 289 transitions. [2023-11-19 07:54:16,498 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 289 transitions. Word has length 24 [2023-11-19 07:54:16,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:16,499 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 289 transitions. [2023-11-19 07:54:16,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 15 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:16,499 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 289 transitions. [2023-11-19 07:54:16,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:54:16,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:16,501 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:16,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:16,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:16,710 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting create_dataErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:16,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:16,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1857961464, now seen corresponding path program 2 times [2023-11-19 07:54:16,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:16,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165912986] [2023-11-19 07:54:16,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:54:16,711 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 [2023-11-19 07:54:16,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:16,712 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:16,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-19 07:54:16,957 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:54:16,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:54:16,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 07:54:16,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:16,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-11-19 07:54:17,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 5 [2023-11-19 07:54:17,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 07:54:17,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-19 07:54:17,287 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-19 07:54:17,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-19 07:54:17,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-19 07:54:17,531 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-19 07:54:17,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-19 07:54:17,542 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-19 07:54:17,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-19 07:54:17,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-19 07:54:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:17,722 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:54:18,136 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse2 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (and (forall ((v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_268) c_create_data_~data~0.base) .cse2))) (bvule (bvadd (_ bv4 32) .cse0 .cse1) (bvadd (_ bv8 32) .cse0 .cse1)))) (forall ((v_ArrVal_267 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_268) c_create_data_~data~0.base) .cse2) .cse1) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_267) c_create_data_~data~0.base) .cse2)))))) is different from false [2023-11-19 07:54:18,221 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse2 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse1))) (and (forall ((v_ArrVal_267 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_268) c_create_data_~data~0.base) .cse1) (_ bv8 32) .cse2) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_267) c_create_data_~data~0.base) .cse1)))) (forall ((v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_268) c_create_data_~data~0.base) .cse1))) (bvule (bvadd .cse3 (_ bv4 32) .cse2) (bvadd .cse3 (_ bv8 32) .cse2))))))) is different from false [2023-11-19 07:54:18,299 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse1 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse2 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse3))) (and (forall ((v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_268) c_create_data_~data~0.base) .cse3))) (bvule (bvadd .cse0 (_ bv8 32) .cse1) (bvadd .cse0 .cse1 (_ bv12 32))))) (forall ((v_ArrVal_267 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_268) c_create_data_~data~0.base) .cse3) .cse1 (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_267) c_create_data_~data~0.base) .cse3))))))) is different from false [2023-11-19 07:54:18,379 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse1 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (and (forall ((v_ArrVal_266 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_267 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_265 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_266))) (let ((.cse0 (select (select .cse3 c_create_data_~data~0.base) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_265) .cse0 v_ArrVal_268) c_create_data_~data~0.base) .cse1) .cse2 (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse0 v_ArrVal_267) c_create_data_~data~0.base) .cse1)))))) (forall ((v_ArrVal_266 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_265 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$.offset| |c_create_data_#t~mem9.base| v_ArrVal_265) (select (select (store |c_#memory_$Pointer$.base| |c_create_data_#t~mem9.base| v_ArrVal_266) c_create_data_~data~0.base) .cse1) v_ArrVal_268) c_create_data_~data~0.base) .cse1))) (bvule (bvadd (_ bv8 32) .cse4 .cse2) (bvadd .cse4 .cse2 (_ bv12 32))))))) is different from false [2023-11-19 07:54:18,467 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse3 (bvmul c_create_data_~counter~0 (_ bv4 32))) (.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2))) (and (forall ((v_ArrVal_266 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_267 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_265 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_266))) (let ((.cse1 (select (select .cse4 c_create_data_~data~0.base) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_265) .cse1 v_ArrVal_268) c_create_data_~data~0.base) .cse2) .cse3 (_ bv12 32)) (select |c_#length| (select (select (store .cse4 .cse1 v_ArrVal_267) c_create_data_~data~0.base) .cse2)))))) (forall ((v_ArrVal_266 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_265 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_265) (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_266) c_create_data_~data~0.base) .cse2) v_ArrVal_268) c_create_data_~data~0.base) .cse2))) (bvule (bvadd .cse5 (_ bv8 32) .cse3) (bvadd .cse5 .cse3 (_ bv12 32)))))))) is different from false [2023-11-19 07:54:18,548 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv4 32) c_create_data_~data~0.offset))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| c_create_data_~data~0.base) .cse2))) (and (forall ((v_ArrVal_266 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_267 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_265 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_266))) (let ((.cse1 (select (select .cse3 c_create_data_~data~0.base) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_265) .cse1 v_ArrVal_268) c_create_data_~data~0.base) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_267) c_create_data_~data~0.base) .cse2)))))) (forall ((v_ArrVal_266 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_268 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_265 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (select (select (store (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_265) (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_266) c_create_data_~data~0.base) .cse2) v_ArrVal_268) c_create_data_~data~0.base) .cse2))) (bvule (bvadd .cse4 (_ bv8 32)) (bvadd .cse4 (_ bv12 32)))))))) is different from false [2023-11-19 07:54:18,571 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:54:18,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 90 [2023-11-19 07:54:18,587 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:54:18,587 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 60 [2023-11-19 07:54:18,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 400 treesize of output 334 [2023-11-19 07:54:18,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 288 treesize of output 264 [2023-11-19 07:54:18,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 19 [2023-11-19 07:54:18,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2023-11-19 07:54:18,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2023-11-19 07:54:18,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-19 07:54:18,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:54:18,722 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 89 treesize of output 80 [2023-11-19 07:54:18,740 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:54:18,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 60 [2023-11-19 07:54:18,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 84 [2023-11-19 07:54:18,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 144 [2023-11-19 07:54:18,776 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 40 [2023-11-19 07:54:18,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2023-11-19 07:54:18,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2023-11-19 07:54:18,904 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 14 not checked. [2023-11-19 07:54:18,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:18,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165912986] [2023-11-19 07:54:18,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165912986] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:54:18,905 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:54:18,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2023-11-19 07:54:18,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697540736] [2023-11-19 07:54:18,906 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:54:18,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-19 07:54:18,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:18,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-19 07:54:18,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=144, Unknown=6, NotChecked=174, Total=380 [2023-11-19 07:54:18,913 INFO L87 Difference]: Start difference. First operand 249 states and 289 transitions. Second operand has 20 states, 19 states have (on average 2.526315789473684) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:22,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:22,325 INFO L93 Difference]: Finished difference Result 263 states and 303 transitions. [2023-11-19 07:54:22,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:54:22,326 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.526315789473684) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2023-11-19 07:54:22,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:22,327 INFO L225 Difference]: With dead ends: 263 [2023-11-19 07:54:22,328 INFO L226 Difference]: Without dead ends: 263 [2023-11-19 07:54:22,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 40 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=85, Invalid=239, Unknown=6, NotChecked=222, Total=552 [2023-11-19 07:54:22,329 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 13 mSDsluCounter, 1192 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1364 SdHoareTripleChecker+Invalid, 1234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 592 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:22,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1364 Invalid, 1234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 638 Invalid, 0 Unknown, 592 Unchecked, 2.8s Time] [2023-11-19 07:54:22,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-11-19 07:54:22,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 261. [2023-11-19 07:54:22,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 197 states have (on average 1.5076142131979695) internal successors, (297), 256 states have internal predecessors, (297), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:22,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 301 transitions. [2023-11-19 07:54:22,338 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 301 transitions. Word has length 30 [2023-11-19 07:54:22,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:22,338 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 301 transitions. [2023-11-19 07:54:22,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.526315789473684) internal successors, (48), 20 states have internal predecessors, (48), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:22,339 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 301 transitions. [2023-11-19 07:54:22,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 07:54:22,340 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:22,340 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:22,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:22,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:22,544 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting create_dataErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:22,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:22,545 INFO L85 PathProgramCache]: Analyzing trace with hash -706243316, now seen corresponding path program 3 times [2023-11-19 07:54:22,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:22,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440212388] [2023-11-19 07:54:22,546 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-19 07:54:22,546 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 [2023-11-19 07:54:22,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:22,547 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:22,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-19 07:54:23,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-19 07:54:23,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:54:23,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 07:54:23,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:23,091 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:23,091 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:54:23,206 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:54:23,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:23,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440212388] [2023-11-19 07:54:23,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440212388] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:54:23,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-19 07:54:23,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-19 07:54:23,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31784846] [2023-11-19 07:54:23,207 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-19 07:54:23,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-19 07:54:23,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:23,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-19 07:54:23,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:54:23,209 INFO L87 Difference]: Start difference. First operand 261 states and 301 transitions. Second operand has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:23,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:23,361 INFO L93 Difference]: Finished difference Result 256 states and 293 transitions. [2023-11-19 07:54:23,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:54:23,362 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2023-11-19 07:54:23,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:23,364 INFO L225 Difference]: With dead ends: 256 [2023-11-19 07:54:23,364 INFO L226 Difference]: Without dead ends: 256 [2023-11-19 07:54:23,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:54:23,365 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 196 mSDsluCounter, 883 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:23,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 1058 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:54:23,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-19 07:54:23,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 254. [2023-11-19 07:54:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 191 states have (on average 1.5026178010471205) internal successors, (287), 249 states have internal predecessors, (287), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:23,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 291 transitions. [2023-11-19 07:54:23,374 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 291 transitions. Word has length 36 [2023-11-19 07:54:23,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:23,374 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 291 transitions. [2023-11-19 07:54:23,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.5) internal successors, (55), 10 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 291 transitions. [2023-11-19 07:54:23,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:54:23,376 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:23,376 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:23,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:23,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:23,585 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting create_dataErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:23,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:23,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1015747616, now seen corresponding path program 1 times [2023-11-19 07:54:23,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:23,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821476446] [2023-11-19 07:54:23,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:23,586 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 [2023-11-19 07:54:23,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:23,587 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:23,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-19 07:54:23,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:23,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:54:23,812 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:23,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:54:23,823 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 07:54:23,824 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:23,824 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:23,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [821476446] [2023-11-19 07:54:23,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [821476446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:23,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:23,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:54:23,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672675672] [2023-11-19 07:54:23,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:23,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:23,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:23,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:23,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:23,826 INFO L87 Difference]: Start difference. First operand 254 states and 291 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:24,115 INFO L93 Difference]: Finished difference Result 250 states and 279 transitions. [2023-11-19 07:54:24,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:24,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-11-19 07:54:24,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:24,117 INFO L225 Difference]: With dead ends: 250 [2023-11-19 07:54:24,117 INFO L226 Difference]: Without dead ends: 250 [2023-11-19 07:54:24,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:24,118 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 18 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:24,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 242 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:54:24,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-11-19 07:54:24,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2023-11-19 07:54:24,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 191 states have (on average 1.4397905759162304) internal successors, (275), 245 states have internal predecessors, (275), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:24,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 279 transitions. [2023-11-19 07:54:24,126 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 279 transitions. Word has length 45 [2023-11-19 07:54:24,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:24,126 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 279 transitions. [2023-11-19 07:54:24,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:24,127 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 279 transitions. [2023-11-19 07:54:24,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:54:24,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:24,128 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:24,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:24,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:24,332 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting create_dataErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:24,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:24,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1015747615, now seen corresponding path program 1 times [2023-11-19 07:54:24,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:24,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493011635] [2023-11-19 07:54:24,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:24,333 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 [2023-11-19 07:54:24,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:24,334 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:24,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-19 07:54:24,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:24,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:54:24,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:24,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:54:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 07:54:24,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:24,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:24,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493011635] [2023-11-19 07:54:24,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493011635] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:24,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:54:24,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:54:24,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377414799] [2023-11-19 07:54:24,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:24,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:54:24,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:24,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:54:24,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:24,567 INFO L87 Difference]: Start difference. First operand 250 states and 279 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:24,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:24,909 INFO L93 Difference]: Finished difference Result 246 states and 267 transitions. [2023-11-19 07:54:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:54:24,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2023-11-19 07:54:24,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:24,910 INFO L225 Difference]: With dead ends: 246 [2023-11-19 07:54:24,911 INFO L226 Difference]: Without dead ends: 246 [2023-11-19 07:54:24,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:54:24,911 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 14 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:24,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 241 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:54:24,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-11-19 07:54:24,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2023-11-19 07:54:24,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 191 states have (on average 1.3769633507853403) internal successors, (263), 241 states have internal predecessors, (263), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:54:24,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 267 transitions. [2023-11-19 07:54:24,918 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 267 transitions. Word has length 45 [2023-11-19 07:54:24,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:24,918 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 267 transitions. [2023-11-19 07:54:24,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:54:24,919 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 267 transitions. [2023-11-19 07:54:24,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 07:54:24,919 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:24,920 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:24,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:25,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:25,124 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:25,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:25,125 INFO L85 PathProgramCache]: Analyzing trace with hash -2093501139, now seen corresponding path program 1 times [2023-11-19 07:54:25,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:25,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [236619978] [2023-11-19 07:54:25,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:25,126 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 [2023-11-19 07:54:25,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:25,127 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:25,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-19 07:54:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:25,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 07:54:25,450 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:25,456 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:54:25,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:54:25,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 07:54:25,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2023-11-19 07:54:25,679 WARN L876 $PredicateComparison]: unable to prove that (exists ((v_arrayElimCell_43 (_ BitVec 32)) (create_data_~data~0.base (_ BitVec 32))) (and (= (select |c_old(#valid)| create_data_~data~0.base) (_ bv0 1)) (= |c_#length| (store (store |c_old(#length)| create_data_~data~0.base (select |c_#length| create_data_~data~0.base)) v_arrayElimCell_43 (_ bv80 32))))) is different from true [2023-11-19 07:54:25,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:54:26,002 INFO L349 Elim1Store]: treesize reduction 21, result has 30.0 percent of original size [2023-11-19 07:54:26,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 18 [2023-11-19 07:54:26,014 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-19 07:54:26,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-19 07:54:26,067 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 5 not checked. [2023-11-19 07:54:26,068 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:54:28,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:28,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [236619978] [2023-11-19 07:54:28,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [236619978] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:54:28,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [618357878] [2023-11-19 07:54:28,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:28,425 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 07:54:28,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/cvc4 [2023-11-19 07:54:28,427 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 07:54:28,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-11-19 07:54:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:29,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 07:54:29,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:29,276 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-19 07:54:29,282 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:54:30,515 INFO L349 Elim1Store]: treesize reduction 48, result has 38.5 percent of original size [2023-11-19 07:54:30,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 84 [2023-11-19 07:54:30,597 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:54:30,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 55 [2023-11-19 07:54:31,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:54:31,439 INFO L349 Elim1Store]: treesize reduction 46, result has 8.0 percent of original size [2023-11-19 07:54:31,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 16 [2023-11-19 07:54:31,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:54:31,515 INFO L349 Elim1Store]: treesize reduction 86, result has 13.1 percent of original size [2023-11-19 07:54:31,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 8 case distinctions, treesize of input 34 treesize of output 29 [2023-11-19 07:54:31,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:54:31,590 INFO L349 Elim1Store]: treesize reduction 70, result has 15.7 percent of original size [2023-11-19 07:54:31,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 34 treesize of output 29 [2023-11-19 07:54:31,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:54:31,636 INFO L349 Elim1Store]: treesize reduction 36, result has 10.0 percent of original size [2023-11-19 07:54:31,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 16 [2023-11-19 07:54:31,667 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:54:31,677 INFO L349 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2023-11-19 07:54:31,678 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 14 [2023-11-19 07:54:31,695 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:54:31,714 INFO L349 Elim1Store]: treesize reduction 19, result has 17.4 percent of original size [2023-11-19 07:54:31,715 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 18 [2023-11-19 07:54:31,746 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:54:31,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 9 [2023-11-19 07:54:31,813 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 07:54:31,813 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:54:31,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [618357878] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:54:31,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:54:31,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2023-11-19 07:54:31,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020476348] [2023-11-19 07:54:31,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:54:31,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:54:31,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:54:31,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:54:31,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=68, Unknown=2, NotChecked=16, Total=110 [2023-11-19 07:54:31,815 INFO L87 Difference]: Start difference. First operand 246 states and 267 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:54:33,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:54:33,382 INFO L93 Difference]: Finished difference Result 270 states and 291 transitions. [2023-11-19 07:54:33,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:54:33,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2023-11-19 07:54:33,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:54:33,384 INFO L225 Difference]: With dead ends: 270 [2023-11-19 07:54:33,385 INFO L226 Difference]: Without dead ends: 270 [2023-11-19 07:54:33,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 86 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=24, Invalid=68, Unknown=2, NotChecked=16, Total=110 [2023-11-19 07:54:33,386 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 43 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:54:33,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 407 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 383 Invalid, 4 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 07:54:33,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2023-11-19 07:54:33,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 257. [2023-11-19 07:54:33,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 199 states have (on average 1.3718592964824121) internal successors, (273), 249 states have internal predecessors, (273), 2 states have call successors, (2), 2 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-19 07:54:33,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 280 transitions. [2023-11-19 07:54:33,395 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 280 transitions. Word has length 48 [2023-11-19 07:54:33,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:54:33,396 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 280 transitions. [2023-11-19 07:54:33,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:54:33,396 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 280 transitions. [2023-11-19 07:54:33,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-19 07:54:33,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:54:33,397 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:54:33,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-11-19 07:54:33,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-11-19 07:54:33,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:33,803 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [create_dataErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, create_dataErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 89 more)] === [2023-11-19 07:54:33,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:54:33,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2093501140, now seen corresponding path program 1 times [2023-11-19 07:54:33,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:54:33,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082395281] [2023-11-19 07:54:33,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:33,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:54:33,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:54:33,805 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -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) [2023-11-19 07:54:33,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-11-19 07:54:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:34,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 07:54:34,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:34,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-19 07:54:34,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-19 07:54:34,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2023-11-19 07:54:34,583 INFO L349 Elim1Store]: treesize reduction 54, result has 18.2 percent of original size [2023-11-19 07:54:34,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 27 [2023-11-19 07:54:34,619 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-19 07:54:34,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:54:36,714 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:54:36,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082395281] [2023-11-19 07:54:36,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082395281] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:54:36,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [830321665] [2023-11-19 07:54:36,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:54:36,715 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 07:54:36,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/cvc4 [2023-11-19 07:54:36,716 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 07:54:36,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7156ce5-f85f-4849-ae34-5e349f0f9cfc/bin/uautomizer-verify-uCwYo4JHxu/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-11-19 07:54:37,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:54:37,212 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:54:37,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:54:37,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7