./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.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_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:49,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:49,397 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-19 07:42:49,405 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:49,406 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:49,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:49,445 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:49,445 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:49,446 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:49,451 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:49,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:49,453 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:49,453 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:49,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:49,455 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:49,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:49,456 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:49,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:49,457 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:42:49,457 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:42:49,457 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:42:49,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:49,460 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:42:49,460 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:42:49,460 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:49,461 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:49,462 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:49,462 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:49,462 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:49,463 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:49,464 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:49,464 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:49,465 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:42:49,465 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:42:49,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:49,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:49,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:49,466 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:49,466 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_61af7667-fba2-4f85-a35f-a4d2e95c1929/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd [2023-11-19 07:42:49,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:49,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:49,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:49,835 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:49,836 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:49,837 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2023-11-19 07:42:52,899 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:42:53,374 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:42:53,374 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2023-11-19 07:42:53,392 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/data/60e15f2ad/646d8b73a3614b27b81e7b3b1a87a8ee/FLAGc4f05c5d2 [2023-11-19 07:42:53,406 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/data/60e15f2ad/646d8b73a3614b27b81e7b3b1a87a8ee [2023-11-19 07:42:53,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:42:53,410 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:42:53,411 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:53,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:42:53,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:42:53,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:53" (1/1) ... [2023-11-19 07:42:53,418 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5019b8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:53, skipping insertion in model container [2023-11-19 07:42:53,419 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:42:53" (1/1) ... [2023-11-19 07:42:53,508 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:42:54,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:42:54,120 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 07:42:54,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7fdc817c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:42:54, skipping insertion in model container [2023-11-19 07:42:54,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:42:54,121 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 07:42:54,123 INFO L158 Benchmark]: Toolchain (without parser) took 711.94ms. Allocated memory is still 153.1MB. Free memory was 120.6MB in the beginning and 99.8MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:42:54,123 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:42:54,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 709.63ms. Allocated memory is still 153.1MB. Free memory was 120.6MB in the beginning and 99.8MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 07:42:54,126 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 709.63ms. Allocated memory is still 153.1MB. Free memory was 120.6MB in the beginning and 99.8MB in the end (delta: 20.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:42:56,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:42:56,779 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-19 07:42:56,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:42:56,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:42:56,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:42:56,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:42:56,820 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:42:56,821 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:42:56,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:42:56,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:42:56,824 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:42:56,824 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:42:56,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:42:56,826 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:42:56,826 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:42:56,827 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:42:56,827 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:42:56,828 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 07:42:56,828 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 07:42:56,829 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 07:42:56,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:42:56,830 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 07:42:56,831 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 07:42:56,831 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 07:42:56,831 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:42:56,832 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:42:56,832 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:42:56,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:42:56,833 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:42:56,834 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:42:56,834 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:42:56,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:42:56,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:42:56,835 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-19 07:42:56,836 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 07:42:56,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:42:56,836 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:42:56,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:42:56,837 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-19 07:42:56,837 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:42:56,837 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_61af7667-fba2-4f85-a35f-a4d2e95c1929/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd [2023-11-19 07:42:57,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:42:57,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:42:57,299 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:42:57,301 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:42:57,301 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:42:57,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2023-11-19 07:43:00,626 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:43:01,067 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:43:01,067 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2023-11-19 07:43:01,106 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/data/9e6ad80b7/c78647ef909b4949a8f57ad2e561a3e6/FLAG80c9675d8 [2023-11-19 07:43:01,128 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/data/9e6ad80b7/c78647ef909b4949a8f57ad2e561a3e6 [2023-11-19 07:43:01,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:43:01,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:43:01,142 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:01,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:43:01,148 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:43:01,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:01" (1/1) ... [2023-11-19 07:43:01,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76cb8a67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:01, skipping insertion in model container [2023-11-19 07:43:01,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:43:01" (1/1) ... [2023-11-19 07:43:01,235 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:01,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:02,000 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 07:43:02,028 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:43:02,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:02,174 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:43:02,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:43:02,380 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:43:02,388 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:43:02,388 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02 WrapperNode [2023-11-19 07:43:02,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:43:02,390 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:02,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:43:02,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:43:02,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,550 INFO L138 Inliner]: procedures = 180, calls = 350, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1184 [2023-11-19 07:43:02,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:43:02,551 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:43:02,551 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:43:02,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:43:02,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,572 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,683 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,761 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:43:02,763 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:43:02,763 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:43:02,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:43:02,765 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (1/1) ... [2023-11-19 07:43:02,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:43:02,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:43:02,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:43:02,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:43:02,856 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:43:02,856 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:43:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-19 07:43:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 07:43:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 07:43:02,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 07:43:02,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:43:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:43:02,858 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2023-11-19 07:43:02,858 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2023-11-19 07:43:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:43:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:43:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:43:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:43:02,860 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:43:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:43:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:43:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 07:43:02,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 07:43:02,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:43:02,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:43:03,155 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:43:03,160 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:43:03,212 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 07:43:09,936 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:43:09,963 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:43:09,964 INFO L302 CfgBuilder]: Removed 71 assume(true) statements. [2023-11-19 07:43:09,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:09 BoogieIcfgContainer [2023-11-19 07:43:09,979 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:43:09,982 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:43:09,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:43:09,987 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:43:09,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:43:01" (1/3) ... [2023-11-19 07:43:09,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b1e535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:09, skipping insertion in model container [2023-11-19 07:43:09,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:43:02" (2/3) ... [2023-11-19 07:43:09,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b1e535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:43:09, skipping insertion in model container [2023-11-19 07:43:09,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:43:09" (3/3) ... [2023-11-19 07:43:09,992 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test8-2.i [2023-11-19 07:43:10,014 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:43:10,014 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 640 error locations. [2023-11-19 07:43:10,142 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:43:10,150 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;@157f46db, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:43:10,150 INFO L358 AbstractCegarLoop]: Starting to check reachability of 640 error locations. [2023-11-19 07:43:10,163 INFO L276 IsEmpty]: Start isEmpty. Operand has 1309 states, 645 states have (on average 2.2310077519379843) internal successors, (1439), 1299 states have internal predecessors, (1439), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 07:43:10,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 07:43:10,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:10,171 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 07:43:10,172 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:10,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:10,180 INFO L85 PathProgramCache]: Analyzing trace with hash 141073, now seen corresponding path program 1 times [2023-11-19 07:43:10,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:10,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268241930] [2023-11-19 07:43:10,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:10,195 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 07:43:10,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:10,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:10,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:10,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:10,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:10,499 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 07:43:10,530 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 07:43:10,531 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:10,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:10,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268241930] [2023-11-19 07:43:10,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268241930] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:10,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:10,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:10,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528621854] [2023-11-19 07:43:10,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:10,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:10,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:10,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:10,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:10,595 INFO L87 Difference]: Start difference. First operand has 1309 states, 645 states have (on average 2.2310077519379843) internal successors, (1439), 1299 states have internal predecessors, (1439), 22 states have call successors, (22), 4 states have call predecessors, (22), 4 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 07:43:13,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:13,669 INFO L93 Difference]: Finished difference Result 1493 states and 1599 transitions. [2023-11-19 07:43:13,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:13,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-11-19 07:43:13,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:13,698 INFO L225 Difference]: With dead ends: 1493 [2023-11-19 07:43:13,699 INFO L226 Difference]: Without dead ends: 1491 [2023-11-19 07:43:13,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:43:13,704 INFO L413 NwaCegarLoop]: 829 mSDtfsCounter, 1170 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 1068 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:13,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 1068 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-19 07:43:13,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1491 states. [2023-11-19 07:43:13,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1491 to 1299. [2023-11-19 07:43:13,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1299 states, 650 states have (on average 2.0876923076923077) internal successors, (1357), 1288 states have internal predecessors, (1357), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 07:43:13,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1299 states to 1299 states and 1401 transitions. [2023-11-19 07:43:13,860 INFO L78 Accepts]: Start accepts. Automaton has 1299 states and 1401 transitions. Word has length 3 [2023-11-19 07:43:13,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:13,860 INFO L495 AbstractCegarLoop]: Abstraction has 1299 states and 1401 transitions. [2023-11-19 07:43:13,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 07:43:13,861 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1401 transitions. [2023-11-19 07:43:13,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 07:43:13,861 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:13,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 07:43:13,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:14,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:14,071 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:14,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:14,072 INFO L85 PathProgramCache]: Analyzing trace with hash 141074, now seen corresponding path program 1 times [2023-11-19 07:43:14,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:14,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467947941] [2023-11-19 07:43:14,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:14,074 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 07:43:14,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:14,075 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:14,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:14,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:43:14,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:14,224 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 07:43:14,238 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 07:43:14,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:14,238 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:14,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467947941] [2023-11-19 07:43:14,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467947941] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:14,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:14,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:14,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927343634] [2023-11-19 07:43:14,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:14,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:14,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:14,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:14,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:14,243 INFO L87 Difference]: Start difference. First operand 1299 states and 1401 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 07:43:18,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:18,969 INFO L93 Difference]: Finished difference Result 1897 states and 2041 transitions. [2023-11-19 07:43:18,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:18,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2023-11-19 07:43:18,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:18,981 INFO L225 Difference]: With dead ends: 1897 [2023-11-19 07:43:18,981 INFO L226 Difference]: Without dead ends: 1897 [2023-11-19 07:43:18,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 07:43:18,983 INFO L413 NwaCegarLoop]: 1100 mSDtfsCounter, 637 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 902 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:18,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1860 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 902 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-19 07:43:18,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1897 states. [2023-11-19 07:43:19,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1897 to 1508. [2023-11-19 07:43:19,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1508 states, 859 states have (on average 2.0733410942956927) internal successors, (1781), 1496 states have internal predecessors, (1781), 24 states have call successors, (24), 4 states have call predecessors, (24), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-19 07:43:19,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 1827 transitions. [2023-11-19 07:43:19,039 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 1827 transitions. Word has length 3 [2023-11-19 07:43:19,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:19,039 INFO L495 AbstractCegarLoop]: Abstraction has 1508 states and 1827 transitions. [2023-11-19 07:43:19,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 07:43:19,040 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 1827 transitions. [2023-11-19 07:43:19,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:43:19,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:19,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:19,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:19,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:19,244 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:19,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:19,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1437667611, now seen corresponding path program 1 times [2023-11-19 07:43:19,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:19,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [190740731] [2023-11-19 07:43:19,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:19,246 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 07:43:19,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:19,248 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:19,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:19,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 07:43:19,413 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:19,432 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 07:43:19,441 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 07:43:19,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 07:43:19,540 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 07:43:19,567 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-19 07:43:19,568 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 07:43:19,595 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 07:43:19,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:19,596 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:19,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [190740731] [2023-11-19 07:43:19,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [190740731] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:19,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:19,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:19,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743207500] [2023-11-19 07:43:19,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:19,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:19,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:19,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:19,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:19,601 INFO L87 Difference]: Start difference. First operand 1508 states and 1827 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 07:43:24,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:24,126 INFO L93 Difference]: Finished difference Result 1694 states and 2020 transitions. [2023-11-19 07:43:24,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:24,127 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2023-11-19 07:43:24,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:24,138 INFO L225 Difference]: With dead ends: 1694 [2023-11-19 07:43:24,139 INFO L226 Difference]: Without dead ends: 1694 [2023-11-19 07:43:24,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:24,140 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 1481 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 1143 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1487 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:24,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1487 Valid, 739 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1143 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-19 07:43:24,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2023-11-19 07:43:24,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1288. [2023-11-19 07:43:24,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 650 states have (on average 2.0692307692307694) internal successors, (1345), 1277 states have internal predecessors, (1345), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 07:43:24,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 1389 transitions. [2023-11-19 07:43:24,189 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 1389 transitions. Word has length 7 [2023-11-19 07:43:24,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:24,189 INFO L495 AbstractCegarLoop]: Abstraction has 1288 states and 1389 transitions. [2023-11-19 07:43:24,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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 07:43:24,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 1389 transitions. [2023-11-19 07:43:24,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:43:24,190 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:24,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:24,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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)] Ended with exit code 0 [2023-11-19 07:43:24,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:24,394 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:24,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:24,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1618023058, now seen corresponding path program 1 times [2023-11-19 07:43:24,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:24,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891146369] [2023-11-19 07:43:24,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:24,403 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 07:43:24,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:24,404 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:24,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:24,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:24,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:24,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:24,587 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 07:43:24,608 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 07:43:24,608 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:24,608 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:24,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891146369] [2023-11-19 07:43:24,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891146369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:24,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:24,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:24,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724460633] [2023-11-19 07:43:24,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:24,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:24,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:24,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:24,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:24,612 INFO L87 Difference]: Start difference. First operand 1288 states and 1389 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 07:43:27,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:27,583 INFO L93 Difference]: Finished difference Result 1619 states and 1748 transitions. [2023-11-19 07:43:27,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:27,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-19 07:43:27,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:27,594 INFO L225 Difference]: With dead ends: 1619 [2023-11-19 07:43:27,595 INFO L226 Difference]: Without dead ends: 1619 [2023-11-19 07:43:27,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 07:43:27,596 INFO L413 NwaCegarLoop]: 1220 mSDtfsCounter, 994 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 999 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:27,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [999 Valid, 1638 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-19 07:43:27,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2023-11-19 07:43:27,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1241. [2023-11-19 07:43:27,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 650 states have (on average 1.9953846153846153) internal successors, (1297), 1230 states have internal predecessors, (1297), 23 states have call successors, (23), 4 states have call predecessors, (23), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-19 07:43:27,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1341 transitions. [2023-11-19 07:43:27,634 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1341 transitions. Word has length 8 [2023-11-19 07:43:27,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:27,635 INFO L495 AbstractCegarLoop]: Abstraction has 1241 states and 1341 transitions. [2023-11-19 07:43:27,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 07:43:27,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1341 transitions. [2023-11-19 07:43:27,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:43:27,636 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:27,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:27,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:27,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:27,839 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:27,840 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:27,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1618023059, now seen corresponding path program 1 times [2023-11-19 07:43:27,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:27,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478615384] [2023-11-19 07:43:27,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:27,841 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 07:43:27,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:27,843 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:27,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:28,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:43:28,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:28,032 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 07:43:28,067 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 07:43:28,068 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:28,068 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:28,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478615384] [2023-11-19 07:43:28,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478615384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:28,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:28,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:43:28,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885587652] [2023-11-19 07:43:28,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:28,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:28,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:28,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:28,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:28,076 INFO L87 Difference]: Start difference. First operand 1241 states and 1341 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 07:43:31,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:31,804 INFO L93 Difference]: Finished difference Result 1715 states and 1850 transitions. [2023-11-19 07:43:31,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:31,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-19 07:43:31,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:31,816 INFO L225 Difference]: With dead ends: 1715 [2023-11-19 07:43:31,816 INFO L226 Difference]: Without dead ends: 1715 [2023-11-19 07:43:31,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 07:43:31,818 INFO L413 NwaCegarLoop]: 1436 mSDtfsCounter, 692 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:31,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 2035 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2023-11-19 07:43:31,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-11-19 07:43:31,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1491. [2023-11-19 07:43:31,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1491 states, 908 states have (on average 1.9812775330396475) internal successors, (1799), 1478 states have internal predecessors, (1799), 25 states have call successors, (25), 4 states have call predecessors, (25), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 07:43:31,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1491 states to 1491 states and 1847 transitions. [2023-11-19 07:43:31,866 INFO L78 Accepts]: Start accepts. Automaton has 1491 states and 1847 transitions. Word has length 8 [2023-11-19 07:43:31,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:31,867 INFO L495 AbstractCegarLoop]: Abstraction has 1491 states and 1847 transitions. [2023-11-19 07:43:31,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 07:43:31,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1491 states and 1847 transitions. [2023-11-19 07:43:31,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 07:43:31,868 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:31,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:31,877 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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)] Forceful destruction successful, exit code 0 [2023-11-19 07:43:32,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:32,072 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr533REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:32,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:32,073 INFO L85 PathProgramCache]: Analyzing trace with hash -364322708, now seen corresponding path program 1 times [2023-11-19 07:43:32,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:32,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1509997337] [2023-11-19 07:43:32,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:32,074 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 07:43:32,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:32,075 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:32,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:32,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:32,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:32,332 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 07:43:32,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:32,333 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:32,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1509997337] [2023-11-19 07:43:32,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1509997337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:32,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:32,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:32,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105253516] [2023-11-19 07:43:32,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:32,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:32,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:32,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:32,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:32,335 INFO L87 Difference]: Start difference. First operand 1491 states and 1847 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:32,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:32,820 INFO L93 Difference]: Finished difference Result 2318 states and 2893 transitions. [2023-11-19 07:43:32,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:32,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-19 07:43:32,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:32,832 INFO L225 Difference]: With dead ends: 2318 [2023-11-19 07:43:32,833 INFO L226 Difference]: Without dead ends: 2318 [2023-11-19 07:43:32,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:32,834 INFO L413 NwaCegarLoop]: 1455 mSDtfsCounter, 754 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:32,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 2586 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-19 07:43:32,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2318 states. [2023-11-19 07:43:32,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2318 to 1900. [2023-11-19 07:43:32,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1315 states have (on average 1.9650190114068442) internal successors, (2584), 1885 states have internal predecessors, (2584), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:43:32,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 2636 transitions. [2023-11-19 07:43:32,886 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 2636 transitions. Word has length 11 [2023-11-19 07:43:32,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:32,887 INFO L495 AbstractCegarLoop]: Abstraction has 1900 states and 2636 transitions. [2023-11-19 07:43:32,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:32,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 2636 transitions. [2023-11-19 07:43:32,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 07:43:32,888 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:32,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:32,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:33,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:33,091 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr344REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:33,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:33,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1480660580, now seen corresponding path program 1 times [2023-11-19 07:43:33,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:33,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1806088423] [2023-11-19 07:43:33,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:33,092 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 07:43:33,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:33,093 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:33,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:33,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:43:33,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:33,311 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 07:43:33,311 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:33,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:33,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1806088423] [2023-11-19 07:43:33,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1806088423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:33,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:33,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:33,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615602434] [2023-11-19 07:43:33,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:33,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:33,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:33,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:33,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:33,314 INFO L87 Difference]: Start difference. First operand 1900 states and 2636 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:33,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:33,379 INFO L93 Difference]: Finished difference Result 1804 states and 2464 transitions. [2023-11-19 07:43:33,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:33,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-19 07:43:33,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:33,389 INFO L225 Difference]: With dead ends: 1804 [2023-11-19 07:43:33,389 INFO L226 Difference]: Without dead ends: 1804 [2023-11-19 07:43:33,389 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 07:43:33,390 INFO L413 NwaCegarLoop]: 1260 mSDtfsCounter, 81 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:33,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 2448 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:33,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1804 states. [2023-11-19 07:43:33,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1804 to 1804. [2023-11-19 07:43:33,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1804 states, 1243 states have (on average 1.9404666130329846) internal successors, (2412), 1789 states have internal predecessors, (2412), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:43:33,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1804 states to 1804 states and 2464 transitions. [2023-11-19 07:43:33,435 INFO L78 Accepts]: Start accepts. Automaton has 1804 states and 2464 transitions. Word has length 13 [2023-11-19 07:43:33,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:33,436 INFO L495 AbstractCegarLoop]: Abstraction has 1804 states and 2464 transitions. [2023-11-19 07:43:33,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:33,436 INFO L276 IsEmpty]: Start isEmpty. Operand 1804 states and 2464 transitions. [2023-11-19 07:43:33,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 07:43:33,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:33,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:33,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:33,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:33,641 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr638ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:33,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:33,641 INFO L85 PathProgramCache]: Analyzing trace with hash -147957479, now seen corresponding path program 1 times [2023-11-19 07:43:33,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:33,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [61295780] [2023-11-19 07:43:33,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:33,642 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 07:43:33,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:33,644 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:33,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:33,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:33,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:43:33,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:33,884 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:43:33,885 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:43:33,886 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-19 07:43:33,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-19 07:43:33,957 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 07:43:33,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-19 07:43:33,978 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 07:43:33,978 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:33,978 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:33,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [61295780] [2023-11-19 07:43:33,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [61295780] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:33,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:33,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:33,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239794714] [2023-11-19 07:43:33,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:33,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:33,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:33,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:33,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:33,982 INFO L87 Difference]: Start difference. First operand 1804 states and 2464 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:35,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:35,839 INFO L93 Difference]: Finished difference Result 2456 states and 3378 transitions. [2023-11-19 07:43:35,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:35,840 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-19 07:43:35,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:35,849 INFO L225 Difference]: With dead ends: 2456 [2023-11-19 07:43:35,849 INFO L226 Difference]: Without dead ends: 2456 [2023-11-19 07:43:35,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:43:35,850 INFO L413 NwaCegarLoop]: 1230 mSDtfsCounter, 466 mSDsluCounter, 2340 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 3570 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:35,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 3570 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 07:43:35,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2456 states. [2023-11-19 07:43:35,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2456 to 1803. [2023-11-19 07:43:35,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1803 states, 1242 states have (on average 1.9404186795491143) internal successors, (2410), 1788 states have internal predecessors, (2410), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:43:35,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1803 states to 1803 states and 2462 transitions. [2023-11-19 07:43:35,897 INFO L78 Accepts]: Start accepts. Automaton has 1803 states and 2462 transitions. Word has length 14 [2023-11-19 07:43:35,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:35,898 INFO L495 AbstractCegarLoop]: Abstraction has 1803 states and 2462 transitions. [2023-11-19 07:43:35,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:43:35,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1803 states and 2462 transitions. [2023-11-19 07:43:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 07:43:35,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:35,899 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 07:43:35,912 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:36,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:36,104 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:36,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:36,104 INFO L85 PathProgramCache]: Analyzing trace with hash -237495490, now seen corresponding path program 1 times [2023-11-19 07:43:36,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:36,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655675613] [2023-11-19 07:43:36,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:36,105 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 07:43:36,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:36,106 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:36,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:36,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:43:36,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:36,332 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 07:43:36,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:36,332 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:36,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655675613] [2023-11-19 07:43:36,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655675613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:36,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:36,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:36,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800795028] [2023-11-19 07:43:36,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:36,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:43:36,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:36,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:43:36,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:43:36,335 INFO L87 Difference]: Start difference. First operand 1803 states and 2462 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 07:43:36,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:36,378 INFO L93 Difference]: Finished difference Result 1743 states and 2376 transitions. [2023-11-19 07:43:36,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:43:36,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2023-11-19 07:43:36,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:36,390 INFO L225 Difference]: With dead ends: 1743 [2023-11-19 07:43:36,391 INFO L226 Difference]: Without dead ends: 1743 [2023-11-19 07:43:36,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 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 07:43:36,392 INFO L413 NwaCegarLoop]: 1217 mSDtfsCounter, 81 mSDsluCounter, 1145 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:36,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 2362 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:43:36,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2023-11-19 07:43:36,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1743. [2023-11-19 07:43:36,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1743 states, 1206 states have (on average 1.9270315091210615) internal successors, (2324), 1728 states have internal predecessors, (2324), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:43:36,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1743 states to 1743 states and 2376 transitions. [2023-11-19 07:43:36,433 INFO L78 Accepts]: Start accepts. Automaton has 1743 states and 2376 transitions. Word has length 18 [2023-11-19 07:43:36,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:36,434 INFO L495 AbstractCegarLoop]: Abstraction has 1743 states and 2376 transitions. [2023-11-19 07:43:36,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 07:43:36,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1743 states and 2376 transitions. [2023-11-19 07:43:36,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 07:43:36,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:36,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:36,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:36,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:36,639 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:36,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:36,639 INFO L85 PathProgramCache]: Analyzing trace with hash -599899528, now seen corresponding path program 1 times [2023-11-19 07:43:36,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:36,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162935936] [2023-11-19 07:43:36,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:36,640 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 07:43:36,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:36,642 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:36,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:36,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:43:36,847 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:36,876 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 07:43:36,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:36,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:36,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162935936] [2023-11-19 07:43:36,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162935936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:36,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:36,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:43:36,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679291751] [2023-11-19 07:43:36,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:36,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:36,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:36,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:36,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:36,879 INFO L87 Difference]: Start difference. First operand 1743 states and 2376 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 07:43:36,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:36,988 INFO L93 Difference]: Finished difference Result 1715 states and 2320 transitions. [2023-11-19 07:43:36,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:36,989 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 20 [2023-11-19 07:43:36,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:36,998 INFO L225 Difference]: With dead ends: 1715 [2023-11-19 07:43:36,999 INFO L226 Difference]: Without dead ends: 1715 [2023-11-19 07:43:36,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 07:43:37,000 INFO L413 NwaCegarLoop]: 1172 mSDtfsCounter, 62 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:37,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 3482 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:43:37,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-11-19 07:43:37,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1713. [2023-11-19 07:43:37,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1190 states have (on average 1.9042016806722688) internal successors, (2266), 1698 states have internal predecessors, (2266), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:43:37,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2318 transitions. [2023-11-19 07:43:37,037 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2318 transitions. Word has length 20 [2023-11-19 07:43:37,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:37,037 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 2318 transitions. [2023-11-19 07:43:37,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 07:43:37,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2318 transitions. [2023-11-19 07:43:37,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 07:43:37,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:37,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:37,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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)] Ended with exit code 0 [2023-11-19 07:43:37,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:37,242 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:37,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:37,243 INFO L85 PathProgramCache]: Analyzing trace with hash 453907206, now seen corresponding path program 1 times [2023-11-19 07:43:37,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:37,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722353744] [2023-11-19 07:43:37,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:37,245 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 07:43:37,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:37,246 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:37,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:37,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:43:37,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:37,507 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 07:43:37,624 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 07:43:37,625 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:37,625 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:37,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722353744] [2023-11-19 07:43:37,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722353744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:37,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:37,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:37,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362759513] [2023-11-19 07:43:37,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:37,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:37,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:37,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:37,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:37,627 INFO L87 Difference]: Start difference. First operand 1713 states and 2318 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 07:43:40,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:43:40,505 INFO L93 Difference]: Finished difference Result 1723 states and 2326 transitions. [2023-11-19 07:43:40,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:43:40,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2023-11-19 07:43:40,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:43:40,515 INFO L225 Difference]: With dead ends: 1723 [2023-11-19 07:43:40,515 INFO L226 Difference]: Without dead ends: 1723 [2023-11-19 07:43:40,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 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 07:43:40,516 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 876 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:43:40,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1549 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1142 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-19 07:43:40,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2023-11-19 07:43:40,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1709. [2023-11-19 07:43:40,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1709 states, 1190 states have (on average 1.8974789915966386) internal successors, (2258), 1694 states have internal predecessors, (2258), 27 states have call successors, (27), 4 states have call predecessors, (27), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-19 07:43:40,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1709 states to 1709 states and 2310 transitions. [2023-11-19 07:43:40,559 INFO L78 Accepts]: Start accepts. Automaton has 1709 states and 2310 transitions. Word has length 34 [2023-11-19 07:43:40,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:43:40,559 INFO L495 AbstractCegarLoop]: Abstraction has 1709 states and 2310 transitions. [2023-11-19 07:43:40,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 07:43:40,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1709 states and 2310 transitions. [2023-11-19 07:43:40,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 07:43:40,561 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:43:40,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:43:40,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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)] Ended with exit code 0 [2023-11-19 07:43:40,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:40,765 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 637 more)] === [2023-11-19 07:43:40,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:43:40,765 INFO L85 PathProgramCache]: Analyzing trace with hash 453907207, now seen corresponding path program 1 times [2023-11-19 07:43:40,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-19 07:43:40,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428583805] [2023-11-19 07:43:40,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:43:40,767 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 07:43:40,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/bin/uautomizer-verify-uCwYo4JHxu/mathsat [2023-11-19 07:43:40,768 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:40,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61af7667-fba2-4f85-a35f-a4d2e95c1929/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 07:43:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:43:41,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:43:41,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:43:41,043 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 07:43:41,276 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 07:43:41,276 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:43:41,277 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-19 07:43:41,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428583805] [2023-11-19 07:43:41,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428583805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:43:41,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:43:41,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:43:41,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550680166] [2023-11-19 07:43:41,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:43:41,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:43:41,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-19 07:43:41,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:43:41,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:43:41,279 INFO L87 Difference]: Start difference. First operand 1709 states and 2310 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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)