./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/seq-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/seq-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme --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 64bit --witnessprinter.graph.data.programhash e95467ef6cafcd26f4031a69e00febdc919d3c7174794600f70cac578001ccfd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:50:34,139 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:50:34,255 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-26 11:50:34,261 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:50:34,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:50:34,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:50:34,307 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:50:34,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:50:34,310 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:50:34,317 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:50:34,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:50:34,318 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:50:34,319 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:50:34,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:50:34,321 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:50:34,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:50:34,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:50:34,322 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:50:34,322 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 11:50:34,323 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 11:50:34,323 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 11:50:34,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:50:34,324 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:50:34,324 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:50:34,325 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:50:34,325 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:50:34,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:50:34,326 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:50:34,326 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:50:34,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:34,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:50:34,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:50:34,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:50:34,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:50:34,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:50:34,329 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:50:34,329 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:50:34,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:50:34,329 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_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e95467ef6cafcd26f4031a69e00febdc919d3c7174794600f70cac578001ccfd [2023-11-26 11:50:34,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:50:34,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:50:34,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:50:34,635 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:50:34,636 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:50:34,637 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/seq-1.i [2023-11-26 11:50:37,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:50:38,299 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:50:38,300 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/sv-benchmarks/c/busybox-1.22.0/seq-1.i [2023-11-26 11:50:38,339 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/data/eef84a9fa/e8d5d717c7d84760bf259825757dab4c/FLAG864d19558 [2023-11-26 11:50:38,359 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/data/eef84a9fa/e8d5d717c7d84760bf259825757dab4c [2023-11-26 11:50:38,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:50:38,370 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:50:38,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:38,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:50:38,379 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:50:38,380 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:38" (1/1) ... [2023-11-26 11:50:38,381 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cec7201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:38, skipping insertion in model container [2023-11-26 11:50:38,381 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:38" (1/1) ... [2023-11-26 11:50:38,486 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:50:40,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:40,143 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) [2023-11-26 11:50:40,144 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@70306ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:40, skipping insertion in model container [2023-11-26 11:50:40,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:40,145 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-26 11:50:40,147 INFO L158 Benchmark]: Toolchain (without parser) took 1776.26ms. Allocated memory is still 186.6MB. Free memory was 135.2MB in the beginning and 98.9MB in the end (delta: 36.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-26 11:50:40,148 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 186.6MB. Free memory is still 159.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:50:40,148 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1772.98ms. Allocated memory is still 186.6MB. Free memory was 135.2MB in the beginning and 98.9MB in the end (delta: 36.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-26 11:50:40,150 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 186.6MB. Free memory is still 159.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1772.98ms. Allocated memory is still 186.6MB. Free memory was 135.2MB in the beginning and 98.9MB in the end (delta: 36.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2208]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/seq-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme --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 64bit --witnessprinter.graph.data.programhash e95467ef6cafcd26f4031a69e00febdc919d3c7174794600f70cac578001ccfd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:50:42,577 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:50:42,710 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-26 11:50:42,721 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:50:42,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:50:42,770 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:50:42,773 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:50:42,774 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:50:42,775 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:50:42,780 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:50:42,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:50:42,782 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:50:42,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:50:42,784 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:50:42,785 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:50:42,786 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:50:42,786 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:50:42,786 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:50:42,787 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-26 11:50:42,787 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-26 11:50:42,788 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-26 11:50:42,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:50:42,789 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 11:50:42,789 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 11:50:42,790 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 11:50:42,790 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:50:42,791 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:50:42,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:50:42,792 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:50:42,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:50:42,794 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:50:42,795 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:42,795 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:50:42,795 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:50:42,796 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 11:50:42,796 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 11:50:42,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:50:42,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:50:42,798 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:50:42,798 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:50:42,798 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 11:50:42,799 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_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e95467ef6cafcd26f4031a69e00febdc919d3c7174794600f70cac578001ccfd [2023-11-26 11:50:43,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:50:43,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:50:43,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:50:43,247 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:50:43,248 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:50:43,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/seq-1.i [2023-11-26 11:50:46,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:50:47,162 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:50:47,163 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/sv-benchmarks/c/busybox-1.22.0/seq-1.i [2023-11-26 11:50:47,205 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/data/0e7aac38b/bcd01fa6be1448519fe07c74b572d4e6/FLAG0bd632e5b [2023-11-26 11:50:47,220 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/data/0e7aac38b/bcd01fa6be1448519fe07c74b572d4e6 [2023-11-26 11:50:47,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:50:47,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:50:47,226 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:47,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:50:47,236 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:50:47,237 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:47" (1/1) ... [2023-11-26 11:50:47,238 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45256c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:47, skipping insertion in model container [2023-11-26 11:50:47,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:50:47" (1/1) ... [2023-11-26 11:50:47,339 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:50:48,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:48,741 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-26 11:50:48,772 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:50:49,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:49,022 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:50:49,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:50:49,450 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:49,451 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:49,451 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 11:50:49,459 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:50:49,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49 WrapperNode [2023-11-26 11:50:49,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:50:49,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:49,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:50:49,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:50:49,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,655 INFO L138 Inliner]: procedures = 583, calls = 363, calls flagged for inlining = 23, calls inlined = 22, statements flattened = 1452 [2023-11-26 11:50:49,655 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:50:49,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:50:49,657 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:50:49,657 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:50:49,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,688 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,736 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-26 11:50:49,737 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,737 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,802 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,847 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,919 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:50:49,920 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:50:49,920 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:50:49,920 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:50:49,923 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (1/1) ... [2023-11-26 11:50:49,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:50:49,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:50:49,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:50:49,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:50:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-26 11:50:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:50:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-26 11:50:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-26 11:50:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:50:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-26 11:50:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:50:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 11:50:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-26 11:50:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-26 11:50:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-26 11:50:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-26 11:50:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:50:50,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:50:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-26 11:50:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-26 11:50:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-26 11:50:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-26 11:50:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-26 11:50:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-26 11:50:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-26 11:50:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-26 11:50:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-26 11:50:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-26 11:50:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:50:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:50:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:50:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 11:50:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2023-11-26 11:50:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2023-11-26 11:50:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-26 11:50:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-26 11:50:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-26 11:50:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-26 11:50:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-26 11:50:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-26 11:50:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-26 11:50:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-26 11:50:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-26 11:50:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-26 11:50:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-26 11:50:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-26 11:50:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-26 11:50:50,590 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:50:50,592 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:50:56,390 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-26 11:51:03,954 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:51:04,139 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:51:04,140 INFO L309 CfgBuilder]: Removed 28 assume(true) statements. [2023-11-26 11:51:04,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:04 BoogieIcfgContainer [2023-11-26 11:51:04,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:51:04,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:51:04,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:51:04,147 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:51:04,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:50:47" (1/3) ... [2023-11-26 11:51:04,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da68bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:04, skipping insertion in model container [2023-11-26 11:51:04,148 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:50:49" (2/3) ... [2023-11-26 11:51:04,148 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5da68bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:51:04, skipping insertion in model container [2023-11-26 11:51:04,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:51:04" (3/3) ... [2023-11-26 11:51:04,150 INFO L112 eAbstractionObserver]: Analyzing ICFG seq-1.i [2023-11-26 11:51:04,170 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:51:04,170 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 452 error locations. [2023-11-26 11:51:04,236 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:51:04,243 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;@6bafbe0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:51:04,243 INFO L358 AbstractCegarLoop]: Starting to check reachability of 452 error locations. [2023-11-26 11:51:04,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 974 states, 495 states have (on average 2.2626262626262625) internal successors, (1120), 946 states have internal predecessors, (1120), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-11-26 11:51:04,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-26 11:51:04,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:04,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-26 11:51:04,260 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 449 more)] === [2023-11-26 11:51:04,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:04,266 INFO L85 PathProgramCache]: Analyzing trace with hash 65758, now seen corresponding path program 1 times [2023-11-26 11:51:04,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:51:04,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826364864] [2023-11-26 11:51:04,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:04,282 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 [2023-11-26 11:51:04,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:51:04,288 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 11:51:04,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 11:51:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:04,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 11:51:04,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:04,711 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 [2023-11-26 11:51:04,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:04,750 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:04,751 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:51:04,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826364864] [2023-11-26 11:51:04,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826364864] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:04,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:04,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:51:04,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684669246] [2023-11-26 11:51:04,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:04,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:04,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:51:04,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:04,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:04,817 INFO L87 Difference]: Start difference. First operand has 974 states, 495 states have (on average 2.2626262626262625) internal successors, (1120), 946 states have internal predecessors, (1120), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:09,332 INFO L93 Difference]: Finished difference Result 1120 states and 1302 transitions. [2023-11-26 11:51:09,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:09,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-26 11:51:09,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:09,355 INFO L225 Difference]: With dead ends: 1120 [2023-11-26 11:51:09,356 INFO L226 Difference]: Without dead ends: 1119 [2023-11-26 11:51:09,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:09,361 INFO L413 NwaCegarLoop]: 876 mSDtfsCounter, 369 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 372 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:09,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [372 Valid, 1399 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-26 11:51:09,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2023-11-26 11:51:09,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 964. [2023-11-26 11:51:09,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 491 states have (on average 2.1894093686354377) internal successors, (1075), 940 states have internal predecessors, (1075), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 11:51:09,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1115 transitions. [2023-11-26 11:51:09,464 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1115 transitions. Word has length 2 [2023-11-26 11:51:09,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:09,464 INFO L495 AbstractCegarLoop]: Abstraction has 964 states and 1115 transitions. [2023-11-26 11:51:09,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:09,465 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1115 transitions. [2023-11-26 11:51:09,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-26 11:51:09,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:09,466 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-26 11:51:09,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 11:51:09,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:51:09,672 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 449 more)] === [2023-11-26 11:51:09,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:09,673 INFO L85 PathProgramCache]: Analyzing trace with hash 65759, now seen corresponding path program 1 times [2023-11-26 11:51:09,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:51:09,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2082486128] [2023-11-26 11:51:09,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:09,675 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 [2023-11-26 11:51:09,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:51:09,677 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 11:51:09,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 11:51:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:10,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 11:51:10,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:10,024 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 [2023-11-26 11:51:10,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:10,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:10,059 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:51:10,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2082486128] [2023-11-26 11:51:10,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2082486128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:10,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:10,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:51:10,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590392727] [2023-11-26 11:51:10,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:10,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:51:10,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:51:10,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:51:10,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:10,063 INFO L87 Difference]: Start difference. First operand 964 states and 1115 transitions. Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:16,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:16,692 INFO L93 Difference]: Finished difference Result 963 states and 1114 transitions. [2023-11-26 11:51:16,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:51:16,695 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 2 [2023-11-26 11:51:16,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:16,701 INFO L225 Difference]: With dead ends: 963 [2023-11-26 11:51:16,702 INFO L226 Difference]: Without dead ends: 963 [2023-11-26 11:51:16,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:51:16,704 INFO L413 NwaCegarLoop]: 1007 mSDtfsCounter, 9 mSDsluCounter, 636 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1643 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:16,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1643 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-11-26 11:51:16,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2023-11-26 11:51:16,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2023-11-26 11:51:16,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 491 states have (on average 2.1873727087576373) internal successors, (1074), 939 states have internal predecessors, (1074), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 11:51:16,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1114 transitions. [2023-11-26 11:51:16,744 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1114 transitions. Word has length 2 [2023-11-26 11:51:16,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:16,744 INFO L495 AbstractCegarLoop]: Abstraction has 963 states and 1114 transitions. [2023-11-26 11:51:16,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:16,745 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1114 transitions. [2023-11-26 11:51:16,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-26 11:51:16,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:16,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-26 11:51:16,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 11:51:16,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:51:16,951 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 449 more)] === [2023-11-26 11:51:16,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:16,951 INFO L85 PathProgramCache]: Analyzing trace with hash 64841542, now seen corresponding path program 1 times [2023-11-26 11:51:16,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:51:16,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208960973] [2023-11-26 11:51:16,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:16,953 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 [2023-11-26 11:51:16,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:51:16,956 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 11:51:16,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 11:51:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:17,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-26 11:51:17,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:17,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-26 11:51:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:17,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 11:51:17,426 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:51:17,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208960973] [2023-11-26 11:51:17,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208960973] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:51:17,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:51:17,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:51:17,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530934643] [2023-11-26 11:51:17,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:51:17,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:51:17,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:51:17,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:51:17,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:51:17,428 INFO L87 Difference]: Start difference. First operand 963 states and 1114 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:26,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:51:26,364 INFO L93 Difference]: Finished difference Result 965 states and 1116 transitions. [2023-11-26 11:51:26,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:51:26,366 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-26 11:51:26,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:51:26,372 INFO L225 Difference]: With dead ends: 965 [2023-11-26 11:51:26,372 INFO L226 Difference]: Without dead ends: 965 [2023-11-26 11:51:26,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:51:26,374 INFO L413 NwaCegarLoop]: 1006 mSDtfsCounter, 9 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2279 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-26 11:51:26,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2279 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-11-26 11:51:26,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 965 states. [2023-11-26 11:51:26,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 965 to 965. [2023-11-26 11:51:26,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 493 states have (on average 2.182555780933063) internal successors, (1076), 941 states have internal predecessors, (1076), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-26 11:51:26,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1116 transitions. [2023-11-26 11:51:26,421 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1116 transitions. Word has length 4 [2023-11-26 11:51:26,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:51:26,421 INFO L495 AbstractCegarLoop]: Abstraction has 965 states and 1116 transitions. [2023-11-26 11:51:26,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 11:51:26,422 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1116 transitions. [2023-11-26 11:51:26,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 11:51:26,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:51:26,422 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-26 11:51:26,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 11:51:26,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-26 11:51:26,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 449 more)] === [2023-11-26 11:51:26,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:51:26,629 INFO L85 PathProgramCache]: Analyzing trace with hash -2110227886, now seen corresponding path program 1 times [2023-11-26 11:51:26,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 11:51:26,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50964568] [2023-11-26 11:51:26,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:51:26,631 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 [2023-11-26 11:51:26,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 11:51:26,632 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -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) [2023-11-26 11:51:26,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d36fb6a-911b-45a5-9b4c-64fa46d358bc/bin/uautomizer-verify-VRDe98Ueme/mathsat -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 [2023-11-26 11:51:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:51:26,907 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 11:51:26,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 11:51:26,925 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 [2023-11-26 11:51:27,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:27,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 11:51:27,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:51:27,731 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 11:51:27,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50964568] [2023-11-26 11:51:27,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50964568] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 11:51:27,732 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 11:51:27,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2023-11-26 11:51:27,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469628285] [2023-11-26 11:51:27,732 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 11:51:27,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 11:51:27,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 11:51:27,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 11:51:27,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-26 11:51:27,734 INFO L87 Difference]: Start difference. First operand 965 states and 1116 transitions. Second operand has 8 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 7 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)