./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 527bcce2 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_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx --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 73081b3fa7e8ac6772d35cbb49ddbf2b46d162637b371c81319141218fe98c6a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:07:24,370 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:24,491 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2023-11-21 22:07:24,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:24,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:24,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:24,543 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:24,543 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:24,544 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:07:24,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:07:24,551 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:24,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:24,552 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:24,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:24,554 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:07:24,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:24,555 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:07:24,555 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:07:24,556 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:07:24,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:07:24,557 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:07:24,557 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:07:24,558 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:24,559 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:24,559 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:24,559 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:07:24,560 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:07:24,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:24,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:24,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:07:24,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:07:24,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:07:24,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:07:24,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:07:24,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:07:24,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:07:24,564 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_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73081b3fa7e8ac6772d35cbb49ddbf2b46d162637b371c81319141218fe98c6a [2023-11-21 22:07:24,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:24,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:24,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:24,938 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:24,939 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:24,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i [2023-11-21 22:07:28,055 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:28,513 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:28,514 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i [2023-11-21 22:07:28,546 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/data/c201e3d0b/bdee97066267486ca67847f8a19bfd38/FLAG6f44ef3bb [2023-11-21 22:07:28,561 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/data/c201e3d0b/bdee97066267486ca67847f8a19bfd38 [2023-11-21 22:07:28,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:28,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:28,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:28,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:28,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:28,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:28" (1/1) ... [2023-11-21 22:07:28,576 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25340653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:28, skipping insertion in model container [2023-11-21 22:07:28,576 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:28" (1/1) ... [2023-11-21 22:07:28,641 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:29,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:29,968 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) [2023-11-21 22:07:29,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@77ccc10d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:29, skipping insertion in model container [2023-11-21 22:07:29,969 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:29,970 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-21 22:07:29,972 INFO L158 Benchmark]: Toolchain (without parser) took 1404.80ms. Allocated memory is still 134.2MB. Free memory was 85.5MB in the beginning and 58.0MB in the end (delta: 27.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-21 22:07:29,974 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 134.2MB. Free memory was 80.9MB in the beginning and 80.7MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:07:29,975 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1402.08ms. Allocated memory is still 134.2MB. Free memory was 85.2MB in the beginning and 58.0MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-21 22:07:29,977 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 134.2MB. Free memory was 80.9MB in the beginning and 80.7MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1402.08ms. Allocated memory is still 134.2MB. Free memory was 85.2MB in the beginning and 58.0MB in the end (delta: 27.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2372]: 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_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx --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 73081b3fa7e8ac6772d35cbb49ddbf2b46d162637b371c81319141218fe98c6a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:07:32,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:07:32,596 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Bitvector.epf [2023-11-21 22:07:32,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:07:32,609 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:07:32,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:07:32,659 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:07:32,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:07:32,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:07:32,666 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:07:32,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:07:32,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:07:32,668 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:07:32,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:07:32,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:07:32,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:07:32,671 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-21 22:07:32,671 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-21 22:07:32,672 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-21 22:07:32,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:07:32,673 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:07:32,674 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:07:32,674 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:07:32,675 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:07:32,675 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:07:32,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:07:32,677 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:07:32,677 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:07:32,677 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:07:32,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:32,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:07:32,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:07:32,680 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:07:32,681 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:07:32,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:07:32,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:07:32,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:07:32,682 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:07:32,682 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:07:32,683 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_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73081b3fa7e8ac6772d35cbb49ddbf2b46d162637b371c81319141218fe98c6a [2023-11-21 22:07:33,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:07:33,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:07:33,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:07:33,126 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:07:33,127 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:07:33,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i [2023-11-21 22:07:36,334 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:07:36,802 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:07:36,803 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/sv-benchmarks/c/busybox-1.22.0/whoami-incomplete-2.i [2023-11-21 22:07:36,839 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/data/7c900d989/b776c9e80b2946b8b2bdee41ac6b5740/FLAG1f4973c90 [2023-11-21 22:07:36,858 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/data/7c900d989/b776c9e80b2946b8b2bdee41ac6b5740 [2023-11-21 22:07:36,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:07:36,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:07:36,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:36,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:07:36,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:07:36,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:36" (1/1) ... [2023-11-21 22:07:36,876 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a387ad8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:36, skipping insertion in model container [2023-11-21 22:07:36,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:07:36" (1/1) ... [2023-11-21 22:07:36,964 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:38,421 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:38,449 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-21 22:07:38,467 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:07:38,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:38,644 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:07:38,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:07:39,073 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:39,073 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:07:39,082 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:07:39,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39 WrapperNode [2023-11-21 22:07:39,083 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:07:39,084 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:39,085 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:07:39,085 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:07:39,092 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (1/1) ... [2023-11-21 22:07:39,175 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (1/1) ... [2023-11-21 22:07:39,249 INFO L138 Inliner]: procedures = 627, calls = 174, calls flagged for inlining = 19, calls inlined = 17, statements flattened = 509 [2023-11-21 22:07:39,249 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:07:39,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:07:39,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:07:39,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:07:39,261 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (1/1) ... [2023-11-21 22:07:39,261 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (1/1) ... [2023-11-21 22:07:39,284 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (1/1) ... [2023-11-21 22:07:39,284 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (1/1) ... [2023-11-21 22:07:39,364 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (1/1) ... [2023-11-21 22:07:39,385 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (1/1) ... [2023-11-21 22:07:39,398 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (1/1) ... [2023-11-21 22:07:39,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (1/1) ... [2023-11-21 22:07:39,448 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:07:39,449 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:07:39,452 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:07:39,453 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:07:39,454 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (1/1) ... [2023-11-21 22:07:39,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:07:39,472 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:07:39,488 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:07:39,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:07:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:07:39,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 22:07:39,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-21 22:07:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:07:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-21 22:07:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:07:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:07:39,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-21 22:07:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-21 22:07:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-21 22:07:39,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-21 22:07:39,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:07:39,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:07:39,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-21 22:07:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-21 22:07:39,536 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-21 22:07:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-21 22:07:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:07:39,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:07:39,537 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:07:39,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:07:39,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:07:39,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:07:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2023-11-21 22:07:39,539 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2023-11-21 22:07:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-21 22:07:39,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-21 22:07:39,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:07:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-21 22:07:39,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-21 22:07:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 22:07:39,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-21 22:07:39,543 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-21 22:07:40,007 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:07:40,009 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:07:44,514 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:07:44,709 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:07:44,710 INFO L308 CfgBuilder]: Removed 9 assume(true) statements. [2023-11-21 22:07:44,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:44 BoogieIcfgContainer [2023-11-21 22:07:44,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:07:44,714 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:07:44,715 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:07:44,718 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:07:44,718 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:07:36" (1/3) ... [2023-11-21 22:07:44,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a166c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:44, skipping insertion in model container [2023-11-21 22:07:44,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:07:39" (2/3) ... [2023-11-21 22:07:44,721 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a166c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:44, skipping insertion in model container [2023-11-21 22:07:44,721 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:44" (3/3) ... [2023-11-21 22:07:44,722 INFO L112 eAbstractionObserver]: Analyzing ICFG whoami-incomplete-2.i [2023-11-21 22:07:44,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:07:44,743 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 147 error locations. [2023-11-21 22:07:44,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:07:44,804 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;@789f714a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:07:44,804 INFO L358 AbstractCegarLoop]: Starting to check reachability of 147 error locations. [2023-11-21 22:07:44,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 301 states, 141 states have (on average 2.24822695035461) internal successors, (317), 288 states have internal predecessors, (317), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:07:44,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:07:44,817 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:07:44,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:07:44,818 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 144 more)] === [2023-11-21 22:07:44,824 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:44,824 INFO L85 PathProgramCache]: Analyzing trace with hash 20871, now seen corresponding path program 1 times [2023-11-21 22:07:44,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:07:44,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631451209] [2023-11-21 22:07:44,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:44,850 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 [2023-11-21 22:07:44,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:07:44,853 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:07:44,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:07:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:45,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-21 22:07:45,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:07:45,151 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 [2023-11-21 22:07:45,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:07:45,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:07:45,175 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:07:45,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631451209] [2023-11-21 22:07:45,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631451209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:07:45,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:07:45,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:07:45,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382961506] [2023-11-21 22:07:45,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:07:45,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:07:45,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:07:45,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:07:45,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:07:45,215 INFO L87 Difference]: Start difference. First operand has 301 states, 141 states have (on average 2.24822695035461) internal successors, (317), 288 states have internal predecessors, (317), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) 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) [2023-11-21 22:07:46,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:07:46,801 INFO L93 Difference]: Finished difference Result 314 states and 345 transitions. [2023-11-21 22:07:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:07:46,806 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 [2023-11-21 22:07:46,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:07:46,831 INFO L225 Difference]: With dead ends: 314 [2023-11-21 22:07:46,833 INFO L226 Difference]: Without dead ends: 313 [2023-11-21 22:07:46,836 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 [2023-11-21 22:07:46,840 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 155 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:07:46,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 303 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-21 22:07:46,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-11-21 22:07:46,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 297. [2023-11-21 22:07:46,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 141 states have (on average 2.1914893617021276) internal successors, (309), 284 states have internal predecessors, (309), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:07:46,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 327 transitions. [2023-11-21 22:07:46,927 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 327 transitions. Word has length 2 [2023-11-21 22:07:46,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:07:46,927 INFO L495 AbstractCegarLoop]: Abstraction has 297 states and 327 transitions. [2023-11-21 22:07:46,928 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) [2023-11-21 22:07:46,928 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 327 transitions. [2023-11-21 22:07:46,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-21 22:07:46,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:07:46,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1] [2023-11-21 22:07:46,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-21 22:07:47,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:07:47,134 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 144 more)] === [2023-11-21 22:07:47,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:47,135 INFO L85 PathProgramCache]: Analyzing trace with hash 20872, now seen corresponding path program 1 times [2023-11-21 22:07:47,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:07:47,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2111444117] [2023-11-21 22:07:47,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:47,136 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 [2023-11-21 22:07:47,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:07:47,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:07:47,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:07:47,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:47,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:07:47,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:07:47,365 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 [2023-11-21 22:07:47,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:07:47,403 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:07:47,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:07:47,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2111444117] [2023-11-21 22:07:47,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2111444117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:07:47,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:07:47,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:07:47,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341342159] [2023-11-21 22:07:47,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:07:47,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:07:47,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:07:47,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:07:47,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:07:47,407 INFO L87 Difference]: Start difference. First operand 297 states and 327 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) [2023-11-21 22:07:49,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:07:49,628 INFO L93 Difference]: Finished difference Result 296 states and 326 transitions. [2023-11-21 22:07:49,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:07:49,631 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 [2023-11-21 22:07:49,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:07:49,633 INFO L225 Difference]: With dead ends: 296 [2023-11-21 22:07:49,633 INFO L226 Difference]: Without dead ends: 296 [2023-11-21 22:07:49,634 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 [2023-11-21 22:07:49,635 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 8 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:07:49,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 438 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-21 22:07:49,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2023-11-21 22:07:49,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2023-11-21 22:07:49,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 141 states have (on average 2.1843971631205674) internal successors, (308), 283 states have internal predecessors, (308), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:07:49,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 326 transitions. [2023-11-21 22:07:49,657 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 326 transitions. Word has length 2 [2023-11-21 22:07:49,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:07:49,657 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 326 transitions. [2023-11-21 22:07:49,658 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) [2023-11-21 22:07:49,658 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 326 transitions. [2023-11-21 22:07:49,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 22:07:49,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:07:49,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 22:07:49,669 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:07:49,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:07:49,865 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 144 more)] === [2023-11-21 22:07:49,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:49,865 INFO L85 PathProgramCache]: Analyzing trace with hash 20609255, now seen corresponding path program 1 times [2023-11-21 22:07:49,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:07:49,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [88252320] [2023-11-21 22:07:49,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:49,867 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 [2023-11-21 22:07:49,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:07:49,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:07:49,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:07:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:50,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:07:50,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:07:50,123 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 [2023-11-21 22:07:50,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:07:50,240 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:07:50,240 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:07:50,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [88252320] [2023-11-21 22:07:50,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [88252320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:07:50,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:07:50,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:07:50,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168142443] [2023-11-21 22:07:50,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:07:50,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 22:07:50,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:07:50,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 22:07:50,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:07:50,242 INFO L87 Difference]: Start difference. First operand 296 states and 326 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) [2023-11-21 22:07:52,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:07:52,548 INFO L93 Difference]: Finished difference Result 298 states and 328 transitions. [2023-11-21 22:07:52,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 22:07:52,551 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 [2023-11-21 22:07:52,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:07:52,553 INFO L225 Difference]: With dead ends: 298 [2023-11-21 22:07:52,553 INFO L226 Difference]: Without dead ends: 298 [2023-11-21 22:07:52,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-21 22:07:52,555 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 8 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:07:52,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 438 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-21 22:07:52,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-11-21 22:07:52,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2023-11-21 22:07:52,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 143 states have (on average 2.167832167832168) internal successors, (310), 285 states have internal predecessors, (310), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:07:52,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 328 transitions. [2023-11-21 22:07:52,597 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 328 transitions. Word has length 4 [2023-11-21 22:07:52,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:07:52,598 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 328 transitions. [2023-11-21 22:07:52,598 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) [2023-11-21 22:07:52,598 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 328 transitions. [2023-11-21 22:07:52,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 22:07:52,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:07:52,599 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-21 22:07:52,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:07:52,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:07:52,801 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 144 more)] === [2023-11-21 22:07:52,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:52,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1668800772, now seen corresponding path program 1 times [2023-11-21 22:07:52,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:07:52,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098239022] [2023-11-21 22:07:52,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:52,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:07:52,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:07:52,806 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:07:52,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:07:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:53,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-21 22:07:53,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:07:53,055 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 [2023-11-21 22:07:53,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:07:53,275 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:07:54,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:07:54,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:07:54,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098239022] [2023-11-21 22:07:54,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1098239022] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:07:54,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:07:54,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2023-11-21 22:07:54,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853537832] [2023-11-21 22:07:54,005 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:07:54,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:07:54,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:07:54,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:07:54,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:07:54,006 INFO L87 Difference]: Start difference. First operand 298 states and 328 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) [2023-11-21 22:08:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:02,950 INFO L93 Difference]: Finished difference Result 300 states and 330 transitions. [2023-11-21 22:08:02,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:08:02,953 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 6 [2023-11-21 22:08:02,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:02,955 INFO L225 Difference]: With dead ends: 300 [2023-11-21 22:08:02,956 INFO L226 Difference]: Without dead ends: 300 [2023-11-21 22:08:02,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:08:02,957 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 16 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:02,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 771 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 8.7s Time] [2023-11-21 22:08:02,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2023-11-21 22:08:02,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 300. [2023-11-21 22:08:02,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 146 states have (on average 2.136986301369863) internal successors, (312), 287 states have internal predecessors, (312), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:08:02,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 330 transitions. [2023-11-21 22:08:02,973 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 330 transitions. Word has length 6 [2023-11-21 22:08:02,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:02,973 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 330 transitions. [2023-11-21 22:08:02,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-11-21 22:08:02,974 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 330 transitions. [2023-11-21 22:08:02,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 22:08:02,974 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:02,974 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1] [2023-11-21 22:08:02,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:08:03,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:08:03,181 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 144 more)] === [2023-11-21 22:08:03,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:03,182 INFO L85 PathProgramCache]: Analyzing trace with hash -331910494, now seen corresponding path program 1 times [2023-11-21 22:08:03,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:03,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915176841] [2023-11-21 22:08:03,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:03,183 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 [2023-11-21 22:08:03,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:03,185 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:08:03,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:08:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:03,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:08:03,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:03,529 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:03,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:03,711 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:03,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:08:03,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915176841] [2023-11-21 22:08:03,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915176841] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:03,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:08:03,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-21 22:08:03,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025893743] [2023-11-21 22:08:03,712 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:03,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-21 22:08:03,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:08:03,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-21 22:08:03,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:08:03,713 INFO L87 Difference]: Start difference. First operand 300 states and 330 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2023-11-21 22:08:06,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:06,261 INFO L93 Difference]: Finished difference Result 310 states and 340 transitions. [2023-11-21 22:08:06,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-21 22:08:06,264 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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 10 [2023-11-21 22:08:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:06,266 INFO L225 Difference]: With dead ends: 310 [2023-11-21 22:08:06,266 INFO L226 Difference]: Without dead ends: 310 [2023-11-21 22:08:06,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2023-11-21 22:08:06,268 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 5 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:06,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1638 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-21 22:08:06,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-11-21 22:08:06,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2023-11-21 22:08:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 156 states have (on average 2.0641025641025643) internal successors, (322), 297 states have internal predecessors, (322), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:08:06,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 340 transitions. [2023-11-21 22:08:06,281 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 340 transitions. Word has length 10 [2023-11-21 22:08:06,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:06,282 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 340 transitions. [2023-11-21 22:08:06,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 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) [2023-11-21 22:08:06,282 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 340 transitions. [2023-11-21 22:08:06,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 22:08:06,283 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:06,283 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1] [2023-11-21 22:08:06,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:08:06,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:08:06,490 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 144 more)] === [2023-11-21 22:08:06,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:06,490 INFO L85 PathProgramCache]: Analyzing trace with hash -236449333, now seen corresponding path program 2 times [2023-11-21 22:08:06,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:06,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740325266] [2023-11-21 22:08:06,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:08:06,492 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 [2023-11-21 22:08:06,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:06,494 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:08:06,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:08:06,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 22:08:06,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:08:06,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:08:06,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:06,847 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-21 22:08:06,848 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2023-11-21 22:08:07,458 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2023-11-21 22:08:07,458 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:07,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:08:07,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740325266] [2023-11-21 22:08:07,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [740325266] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:07,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:07,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:08:07,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231469371] [2023-11-21 22:08:07,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:07,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:07,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:08:07,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:07,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:07,460 INFO L87 Difference]: Start difference. First operand 310 states and 340 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:09,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:09,912 INFO L93 Difference]: Finished difference Result 344 states and 373 transitions. [2023-11-21 22:08:09,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:09,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-21 22:08:09,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:09,916 INFO L225 Difference]: With dead ends: 344 [2023-11-21 22:08:09,917 INFO L226 Difference]: Without dead ends: 344 [2023-11-21 22:08:09,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:09,918 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 173 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:09,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 299 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-11-21 22:08:09,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-11-21 22:08:09,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 322. [2023-11-21 22:08:09,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 166 states have (on average 2.036144578313253) internal successors, (338), 306 states have internal predecessors, (338), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:08:09,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 356 transitions. [2023-11-21 22:08:09,947 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 356 transitions. Word has length 20 [2023-11-21 22:08:09,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:09,947 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 356 transitions. [2023-11-21 22:08:09,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:09,948 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 356 transitions. [2023-11-21 22:08:09,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 22:08:09,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:09,949 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1] [2023-11-21 22:08:09,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-21 22:08:10,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:08:10,151 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 144 more)] === [2023-11-21 22:08:10,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:10,152 INFO L85 PathProgramCache]: Analyzing trace with hash -236449332, now seen corresponding path program 1 times [2023-11-21 22:08:10,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:10,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1470403159] [2023-11-21 22:08:10,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:10,153 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 [2023-11-21 22:08:10,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:10,155 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:08:10,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:08:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:10,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 22:08:10,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:10,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-21 22:08:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:08:11,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:08:11,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1470403159] [2023-11-21 22:08:11,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1470403159] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-21 22:08:11,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-21 22:08:11,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-11-21 22:08:11,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898483016] [2023-11-21 22:08:11,641 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-21 22:08:11,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-21 22:08:11,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:08:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-21 22:08:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-21 22:08:11,643 INFO L87 Difference]: Start difference. First operand 322 states and 356 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 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) [2023-11-21 22:08:16,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:16,245 INFO L93 Difference]: Finished difference Result 326 states and 360 transitions. [2023-11-21 22:08:16,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-21 22:08:16,249 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 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 [2023-11-21 22:08:16,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:16,251 INFO L225 Difference]: With dead ends: 326 [2023-11-21 22:08:16,251 INFO L226 Difference]: Without dead ends: 326 [2023-11-21 22:08:16,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2023-11-21 22:08:16,253 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 2 mSDsluCounter, 2992 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3264 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:16,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3264 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-21 22:08:16,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2023-11-21 22:08:16,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 326. [2023-11-21 22:08:16,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 170 states have (on average 2.011764705882353) internal successors, (342), 310 states have internal predecessors, (342), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:08:16,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 360 transitions. [2023-11-21 22:08:16,270 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 360 transitions. Word has length 20 [2023-11-21 22:08:16,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:16,270 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 360 transitions. [2023-11-21 22:08:16,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 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) [2023-11-21 22:08:16,271 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 360 transitions. [2023-11-21 22:08:16,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-21 22:08:16,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:16,272 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1] [2023-11-21 22:08:16,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:08:16,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:08:16,482 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 144 more)] === [2023-11-21 22:08:16,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:16,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1283254090, now seen corresponding path program 2 times [2023-11-21 22:08:16,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:16,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751243413] [2023-11-21 22:08:16,483 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-21 22:08:16,483 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 [2023-11-21 22:08:16,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:16,485 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:08:16,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:08:16,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-21 22:08:16,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-21 22:08:16,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:08:16,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:16,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-21 22:08:16,779 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 [2023-11-21 22:08:17,427 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-21 22:08:17,428 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:17,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:08:17,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751243413] [2023-11-21 22:08:17,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751243413] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:17,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:17,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:08:17,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231187602] [2023-11-21 22:08:17,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:17,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:08:17,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:17,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:17,430 INFO L87 Difference]: Start difference. First operand 326 states and 360 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:19,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:19,678 INFO L93 Difference]: Finished difference Result 327 states and 360 transitions. [2023-11-21 22:08:19,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:19,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2023-11-21 22:08:19,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:19,682 INFO L225 Difference]: With dead ends: 327 [2023-11-21 22:08:19,682 INFO L226 Difference]: Without dead ends: 327 [2023-11-21 22:08:19,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:19,684 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 4 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:19,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 443 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-21 22:08:19,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2023-11-21 22:08:19,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 327. [2023-11-21 22:08:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 171 states have (on average 2.0) internal successors, (342), 310 states have internal predecessors, (342), 9 states have call successors, (9), 7 states have call predecessors, (9), 7 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:08:19,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 360 transitions. [2023-11-21 22:08:19,695 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 360 transitions. Word has length 24 [2023-11-21 22:08:19,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:19,696 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 360 transitions. [2023-11-21 22:08:19,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:08:19,696 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 360 transitions. [2023-11-21 22:08:19,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:08:19,697 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:19,698 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:19,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-21 22:08:19,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:08:19,903 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [#Ultimate.C_strcpyErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, #Ultimate.C_strcpyErr2ASSERT_VIOLATIONMEMORY_DEREFERENCE (and 144 more)] === [2023-11-21 22:08:19,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:08:19,904 INFO L85 PathProgramCache]: Analyzing trace with hash 64773363, now seen corresponding path program 1 times [2023-11-21 22:08:19,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:08:19,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512076983] [2023-11-21 22:08:19,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:08:19,904 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 [2023-11-21 22:08:19,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:08:19,906 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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) [2023-11-21 22:08:19,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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 [2023-11-21 22:08:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:08:20,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:08:20,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:08:20,493 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-21 22:08:20,493 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2023-11-21 22:08:20,543 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2023-11-21 22:08:20,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:08:20,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:08:20,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [512076983] [2023-11-21 22:08:20,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [512076983] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:08:20,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:08:20,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:08:20,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560607594] [2023-11-21 22:08:20,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:08:20,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:08:20,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:08:20,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:08:20,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:20,546 INFO L87 Difference]: Start difference. First operand 327 states and 360 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:08:23,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:08:23,087 INFO L93 Difference]: Finished difference Result 338 states and 372 transitions. [2023-11-21 22:08:23,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:08:23,089 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-21 22:08:23,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:08:23,091 INFO L225 Difference]: With dead ends: 338 [2023-11-21 22:08:23,092 INFO L226 Difference]: Without dead ends: 338 [2023-11-21 22:08:23,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:08:23,093 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 141 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:08:23,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 301 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-11-21 22:08:23,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2023-11-21 22:08:23,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 322. [2023-11-21 22:08:23,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 171 states have (on average 1.9707602339181287) internal successors, (337), 305 states have internal predecessors, (337), 9 states have call successors, (9), 7 states have call predecessors, (9), 7 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:08:23,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 355 transitions. [2023-11-21 22:08:23,105 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 355 transitions. Word has length 29 [2023-11-21 22:08:23,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:08:23,105 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 355 transitions. [2023-11-21 22:08:23,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-21 22:08:23,106 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 355 transitions. [2023-11-21 22:08:23,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-21 22:08:23,107 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:08:23,107 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:08:23,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ccd57b46-f208-4d40-9b54-2c5209c7e0db/bin/uautomizer-verify-bycVGegfSx/mathsat -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