./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b 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_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d993ff45e37665d9abd93530677e1201b0648bf8ee13fa84b0c68926f580d988 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:11:23,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:11:23,674 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 23:11:23,680 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:11:23,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:11:23,708 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:11:23,711 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:11:23,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:11:23,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:11:23,713 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:11:23,714 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:11:23,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:11:23,716 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:11:23,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:11:23,719 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:11:23,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:11:23,721 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:11:23,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:11:23,725 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 23:11:23,725 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 23:11:23,727 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 23:11:23,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:11:23,728 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:11:23,728 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:11:23,729 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:11:23,729 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:11:23,730 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:11:23,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:11:23,731 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:11:23,731 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:11:23,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:11:23,733 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:11:23,734 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:11:23,734 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:11:23,734 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:11:23,734 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:11:23,735 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:11:23,735 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:11:23,735 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_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d993ff45e37665d9abd93530677e1201b0648bf8ee13fa84b0c68926f580d988 [2023-11-06 23:11:24,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:11:24,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:11:24,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:11:24,080 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:11:24,081 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:11:24,083 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i [2023-11-06 23:11:27,175 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:11:27,696 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:11:27,696 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i [2023-11-06 23:11:27,732 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/data/f79974f00/a96ef39a963b4568aeb19514e0f4262e/FLAGd7cf3609d [2023-11-06 23:11:27,755 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/data/f79974f00/a96ef39a963b4568aeb19514e0f4262e [2023-11-06 23:11:27,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:11:27,768 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:11:27,774 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:11:27,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:11:27,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:11:27,784 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:11:27" (1/1) ... [2023-11-06 23:11:27,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@679177ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:27, skipping insertion in model container [2023-11-06 23:11:27,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:11:27" (1/1) ... [2023-11-06 23:11:27,887 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:11:28,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:11:28,860 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) [2023-11-06 23:11:28,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@782d4ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:28, skipping insertion in model container [2023-11-06 23:11:28,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:11:28,862 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-06 23:11:28,864 INFO L158 Benchmark]: Toolchain (without parser) took 1095.18ms. Allocated memory is still 151.0MB. Free memory was 116.4MB in the beginning and 82.5MB in the end (delta: 33.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-06 23:11:28,865 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:11:28,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1087.46ms. Allocated memory is still 151.0MB. Free memory was 116.0MB in the beginning and 82.5MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-06 23:11:28,867 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 86.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1087.46ms. Allocated memory is still 151.0MB. Free memory was 116.0MB in the beginning and 82.5MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2221]: 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_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d993ff45e37665d9abd93530677e1201b0648bf8ee13fa84b0c68926f580d988 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:11:31,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:11:31,589 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-06 23:11:31,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:11:31,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:11:31,648 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:11:31,649 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:11:31,649 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:11:31,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:11:31,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:11:31,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:11:31,657 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:11:31,657 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:11:31,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:11:31,659 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:11:31,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:11:31,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:11:31,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:11:31,661 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 23:11:31,662 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 23:11:31,663 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 23:11:31,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:11:31,664 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:11:31,664 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 23:11:31,664 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 23:11:31,665 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:11:31,665 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:11:31,665 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:11:31,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:11:31,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:11:31,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:11:31,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:11:31,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:11:31,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:11:31,669 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 23:11:31,669 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 23:11:31,670 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:11:31,670 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:11:31,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:11:31,671 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 23:11:31,671 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:11:31,672 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_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d993ff45e37665d9abd93530677e1201b0648bf8ee13fa84b0c68926f580d988 [2023-11-06 23:11:32,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:11:32,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:11:32,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:11:32,129 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:11:32,129 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:11:32,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i [2023-11-06 23:11:35,446 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:11:35,966 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:11:35,966 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i [2023-11-06 23:11:36,002 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/data/c9a33fb91/43177b689c9d40cfb01a634fcc87cfdf/FLAG71b67bd69 [2023-11-06 23:11:36,024 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/data/c9a33fb91/43177b689c9d40cfb01a634fcc87cfdf [2023-11-06 23:11:36,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:11:36,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:11:36,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:11:36,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:11:36,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:11:36,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:11:36" (1/1) ... [2023-11-06 23:11:36,042 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4190758d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:36, skipping insertion in model container [2023-11-06 23:11:36,042 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:11:36" (1/1) ... [2023-11-06 23:11:36,140 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:11:37,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:11:37,174 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 23:11:37,221 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:11:37,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:11:37,429 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:11:37,588 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:11:37,679 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:11:37,686 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:11:37,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37 WrapperNode [2023-11-06 23:11:37,687 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:11:37,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:11:37,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:11:37,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:11:37,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (1/1) ... [2023-11-06 23:11:37,760 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (1/1) ... [2023-11-06 23:11:37,862 INFO L138 Inliner]: procedures = 180, calls = 783, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3040 [2023-11-06 23:11:37,862 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:11:37,863 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:11:37,863 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:11:37,863 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:11:37,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (1/1) ... [2023-11-06 23:11:37,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (1/1) ... [2023-11-06 23:11:37,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (1/1) ... [2023-11-06 23:11:37,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (1/1) ... [2023-11-06 23:11:38,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (1/1) ... [2023-11-06 23:11:38,076 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (1/1) ... [2023-11-06 23:11:38,091 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (1/1) ... [2023-11-06 23:11:38,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (1/1) ... [2023-11-06 23:11:38,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:11:38,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:11:38,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:11:38,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:11:38,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (1/1) ... [2023-11-06 23:11:38,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:11:38,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:11:38,178 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:11:38,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:11:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 23:11:38,220 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 23:11:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 23:11:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 23:11:38,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-06 23:11:38,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-06 23:11:38,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 23:11:38,221 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 23:11:38,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:11:38,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:11:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 23:11:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:11:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-06 23:11:38,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 23:11:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:11:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 23:11:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 23:11:38,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:11:38,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:11:38,497 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:11:38,501 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:11:38,547 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 23:11:46,339 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:11:46,366 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:11:46,367 INFO L302 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-06 23:11:46,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:11:46 BoogieIcfgContainer [2023-11-06 23:11:46,373 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:11:46,377 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:11:46,377 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:11:46,380 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:11:46,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:11:36" (1/3) ... [2023-11-06 23:11:46,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4246e84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:11:46, skipping insertion in model container [2023-11-06 23:11:46,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:11:37" (2/3) ... [2023-11-06 23:11:46,385 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4246e84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:11:46, skipping insertion in model container [2023-11-06 23:11:46,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:11:46" (3/3) ... [2023-11-06 23:11:46,386 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test9-2.i [2023-11-06 23:11:46,409 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:11:46,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 535 error locations. [2023-11-06 23:11:46,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:11:46,552 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;@5fb1a7b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:11:46,552 INFO L358 AbstractCegarLoop]: Starting to check reachability of 535 error locations. [2023-11-06 23:11:46,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 2082 states, 1041 states have (on average 2.112391930835735) internal successors, (2199), 2075 states have internal predecessors, (2199), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) [2023-11-06 23:11:46,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 23:11:46,570 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:11:46,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 23:11:46,572 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:11:46,577 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:11:46,578 INFO L85 PathProgramCache]: Analyzing trace with hash 47731, now seen corresponding path program 1 times [2023-11-06 23:11:46,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:11:46,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [714290657] [2023-11-06 23:11:46,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:11:46,592 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 [2023-11-06 23:11:46,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:11:46,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:11:46,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:11:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:11:46,774 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:11:46,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:11:46,852 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:11:46,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:11:46,884 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:11:46,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:11:46,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [714290657] [2023-11-06 23:11:46,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [714290657] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:11:46,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:11:46,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:11:46,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789551893] [2023-11-06 23:11:46,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:11:46,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:11:46,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:11:46,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:11:46,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:11:46,932 INFO L87 Difference]: Start difference. First operand has 2082 states, 1041 states have (on average 2.112391930835735) internal successors, (2199), 2075 states have internal predecessors, (2199), 505 states have call successors, (505), 3 states have call predecessors, (505), 3 states have return successors, (505), 6 states have call predecessors, (505), 505 states have call successors, (505) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:11:50,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:11:50,782 INFO L93 Difference]: Finished difference Result 2249 states and 3315 transitions. [2023-11-06 23:11:50,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:11:50,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 23:11:50,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:11:50,828 INFO L225 Difference]: With dead ends: 2249 [2023-11-06 23:11:50,829 INFO L226 Difference]: Without dead ends: 2247 [2023-11-06 23:11:50,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:11:50,835 INFO L413 NwaCegarLoop]: 2646 mSDtfsCounter, 1991 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2494 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:11:50,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2494 Valid, 2802 Invalid, 1152 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-06 23:11:50,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2023-11-06 23:11:51,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 2067. [2023-11-06 23:11:51,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2067 states, 1043 states have (on average 2.0297219558964525) internal successors, (2117), 2060 states have internal predecessors, (2117), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-06 23:11:51,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 3125 transitions. [2023-11-06 23:11:51,336 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 3125 transitions. Word has length 3 [2023-11-06 23:11:51,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:11:51,337 INFO L495 AbstractCegarLoop]: Abstraction has 2067 states and 3125 transitions. [2023-11-06 23:11:51,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:11:51,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 3125 transitions. [2023-11-06 23:11:51,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-06 23:11:51,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:11:51,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-06 23:11:51,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 23:11:51,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:11:51,547 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:11:51,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:11:51,548 INFO L85 PathProgramCache]: Analyzing trace with hash 47732, now seen corresponding path program 1 times [2023-11-06 23:11:51,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:11:51,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186980447] [2023-11-06 23:11:51,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:11:51,549 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 [2023-11-06 23:11:51,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:11:51,557 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:11:51,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:11:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:11:51,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:11:51,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:11:51,709 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:11:51,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:11:51,725 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:11:51,725 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:11:51,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186980447] [2023-11-06 23:11:51,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186980447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:11:51,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:11:51,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:11:51,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618686932] [2023-11-06 23:11:51,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:11:51,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:11:51,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:11:51,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:11:51,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:11:51,738 INFO L87 Difference]: Start difference. First operand 2067 states and 3125 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:11:57,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:11:57,408 INFO L93 Difference]: Finished difference Result 3479 states and 5570 transitions. [2023-11-06 23:11:57,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:11:57,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-06 23:11:57,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:11:57,439 INFO L225 Difference]: With dead ends: 3479 [2023-11-06 23:11:57,440 INFO L226 Difference]: Without dead ends: 3479 [2023-11-06 23:11:57,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:11:57,442 INFO L413 NwaCegarLoop]: 3030 mSDtfsCounter, 1444 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1944 SdHoareTripleChecker+Valid, 5121 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:11:57,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1944 Valid, 5121 Invalid, 1216 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-11-06 23:11:57,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3479 states. [2023-11-06 23:11:57,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3479 to 3192. [2023-11-06 23:11:57,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3192 states, 1669 states have (on average 2.005991611743559) internal successors, (3348), 3185 states have internal predecessors, (3348), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:11:57,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3192 states to 3192 states and 5356 transitions. [2023-11-06 23:11:57,822 INFO L78 Accepts]: Start accepts. Automaton has 3192 states and 5356 transitions. Word has length 3 [2023-11-06 23:11:57,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:11:57,823 INFO L495 AbstractCegarLoop]: Abstraction has 3192 states and 5356 transitions. [2023-11-06 23:11:57,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:11:57,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3192 states and 5356 transitions. [2023-11-06 23:11:57,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 23:11:57,824 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:11:57,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:11:57,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:11:58,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:11:58,035 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:11:58,036 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:11:58,036 INFO L85 PathProgramCache]: Analyzing trace with hash 1130822653, now seen corresponding path program 1 times [2023-11-06 23:11:58,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:11:58,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570601947] [2023-11-06 23:11:58,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:11:58,038 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 [2023-11-06 23:11:58,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:11:58,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:11:58,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:11:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:11:58,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 23:11:58,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:11:58,243 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:11:58,252 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:11:58,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:11:58,376 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-06 23:11:58,403 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 23:11:58,403 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-06 23:11:58,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:11:58,436 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:11:58,436 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:11:58,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570601947] [2023-11-06 23:11:58,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570601947] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:11:58,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:11:58,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:11:58,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657267348] [2023-11-06 23:11:58,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:11:58,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:11:58,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:11:58,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:11:58,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:11:58,444 INFO L87 Difference]: Start difference. First operand 3192 states and 5356 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:05,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:05,579 INFO L93 Difference]: Finished difference Result 3361 states and 5533 transitions. [2023-11-06 23:12:05,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:12:05,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-06 23:12:05,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:05,606 INFO L225 Difference]: With dead ends: 3361 [2023-11-06 23:12:05,606 INFO L226 Difference]: Without dead ends: 3361 [2023-11-06 23:12:05,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:05,610 INFO L413 NwaCegarLoop]: 2373 mSDtfsCounter, 4239 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:05,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4742 Valid, 2461 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-11-06 23:12:05,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3361 states. [2023-11-06 23:12:06,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3361 to 2056. [2023-11-06 23:12:06,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2056 states, 1043 states have (on average 2.0182166826462127) internal successors, (2105), 2049 states have internal predecessors, (2105), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-06 23:12:06,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2056 states to 2056 states and 3113 transitions. [2023-11-06 23:12:06,020 INFO L78 Accepts]: Start accepts. Automaton has 2056 states and 3113 transitions. Word has length 7 [2023-11-06 23:12:06,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:06,021 INFO L495 AbstractCegarLoop]: Abstraction has 2056 states and 3113 transitions. [2023-11-06 23:12:06,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:06,023 INFO L276 IsEmpty]: Start isEmpty. Operand 2056 states and 3113 transitions. [2023-11-06 23:12:06,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 23:12:06,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:06,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:06,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-06 23:12:06,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:06,237 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:06,237 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:06,238 INFO L85 PathProgramCache]: Analyzing trace with hash 695763858, now seen corresponding path program 1 times [2023-11-06 23:12:06,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:06,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234568006] [2023-11-06 23:12:06,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:06,239 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 [2023-11-06 23:12:06,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:06,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:06,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:12:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:06,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:12:06,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:06,404 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:12:06,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:06,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:06,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:06,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234568006] [2023-11-06 23:12:06,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234568006] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:06,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:06,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:12:06,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769325767] [2023-11-06 23:12:06,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:06,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:12:06,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:06,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:12:06,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:06,422 INFO L87 Difference]: Start difference. First operand 2056 states and 3113 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:10,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:10,246 INFO L93 Difference]: Finished difference Result 3224 states and 5303 transitions. [2023-11-06 23:12:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:12:10,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 23:12:10,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:10,271 INFO L225 Difference]: With dead ends: 3224 [2023-11-06 23:12:10,272 INFO L226 Difference]: Without dead ends: 3224 [2023-11-06 23:12:10,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:10,273 INFO L413 NwaCegarLoop]: 4773 mSDtfsCounter, 1808 mSDsluCounter, 2267 mSDsCounter, 0 mSdLazyCounter, 1130 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2311 SdHoareTripleChecker+Valid, 7040 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:10,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2311 Valid, 7040 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1130 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-06 23:12:10,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3224 states. [2023-11-06 23:12:10,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3224 to 2009. [2023-11-06 23:12:10,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2009 states, 1043 states have (on average 1.9731543624161074) internal successors, (2058), 2002 states have internal predecessors, (2058), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-06 23:12:10,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 3066 transitions. [2023-11-06 23:12:10,782 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 3066 transitions. Word has length 8 [2023-11-06 23:12:10,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:10,782 INFO L495 AbstractCegarLoop]: Abstraction has 2009 states and 3066 transitions. [2023-11-06 23:12:10,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:10,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 3066 transitions. [2023-11-06 23:12:10,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 23:12:10,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:10,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:10,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:12:10,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:10,996 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:10,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:10,997 INFO L85 PathProgramCache]: Analyzing trace with hash 695763859, now seen corresponding path program 1 times [2023-11-06 23:12:10,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:10,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654171251] [2023-11-06 23:12:10,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:10,998 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 [2023-11-06 23:12:10,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:11,000 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:11,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:12:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:11,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:12:11,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:11,185 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:12:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:11,225 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:11,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:11,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654171251] [2023-11-06 23:12:11,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654171251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:11,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:11,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:12:11,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771021210] [2023-11-06 23:12:11,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:11,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:12:11,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:11,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:12:11,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:11,236 INFO L87 Difference]: Start difference. First operand 2009 states and 3066 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:15,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:15,958 INFO L93 Difference]: Finished difference Result 3292 states and 5374 transitions. [2023-11-06 23:12:15,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:12:15,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 23:12:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:15,981 INFO L225 Difference]: With dead ends: 3292 [2023-11-06 23:12:15,981 INFO L226 Difference]: Without dead ends: 3292 [2023-11-06 23:12:15,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:15,983 INFO L413 NwaCegarLoop]: 4952 mSDtfsCounter, 1495 mSDsluCounter, 2431 mSDsCounter, 0 mSdLazyCounter, 1147 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1995 SdHoareTripleChecker+Valid, 7383 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:15,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1995 Valid, 7383 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1147 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-06 23:12:15,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3292 states. [2023-11-06 23:12:16,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3292 to 2031. [2023-11-06 23:12:16,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2031 states, 1075 states have (on average 1.9665116279069768) internal successors, (2114), 2024 states have internal predecessors, (2114), 505 states have call successors, (505), 3 states have call predecessors, (505), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2023-11-06 23:12:16,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2031 states to 2031 states and 3122 transitions. [2023-11-06 23:12:16,349 INFO L78 Accepts]: Start accepts. Automaton has 2031 states and 3122 transitions. Word has length 8 [2023-11-06 23:12:16,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:16,349 INFO L495 AbstractCegarLoop]: Abstraction has 2031 states and 3122 transitions. [2023-11-06 23:12:16,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:16,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2031 states and 3122 transitions. [2023-11-06 23:12:16,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-06 23:12:16,350 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:16,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:16,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:12:16,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:16,566 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr428REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:16,567 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:16,567 INFO L85 PathProgramCache]: Analyzing trace with hash -745981022, now seen corresponding path program 1 times [2023-11-06 23:12:16,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:16,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265169240] [2023-11-06 23:12:16,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:16,568 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 [2023-11-06 23:12:16,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:16,569 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:16,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:12:16,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:16,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:12:16,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:16,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:16,809 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:16,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:16,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265169240] [2023-11-06 23:12:16,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265169240] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:16,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:16,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:12:16,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913972475] [2023-11-06 23:12:16,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:16,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:12:16,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:16,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:12:16,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:16,811 INFO L87 Difference]: Start difference. First operand 2031 states and 3122 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:17,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:17,235 INFO L93 Difference]: Finished difference Result 3502 states and 5629 transitions. [2023-11-06 23:12:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:12:17,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-06 23:12:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:17,259 INFO L225 Difference]: With dead ends: 3502 [2023-11-06 23:12:17,260 INFO L226 Difference]: Without dead ends: 3502 [2023-11-06 23:12:17,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:17,261 INFO L413 NwaCegarLoop]: 3116 mSDtfsCounter, 1564 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 6012 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:17,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 6012 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 23:12:17,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2023-11-06 23:12:17,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 3208. [2023-11-06 23:12:17,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 1752 states have (on average 1.9486301369863013) internal successors, (3414), 3201 states have internal predecessors, (3414), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:12:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 5422 transitions. [2023-11-06 23:12:17,624 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 5422 transitions. Word has length 11 [2023-11-06 23:12:17,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:17,624 INFO L495 AbstractCegarLoop]: Abstraction has 3208 states and 5422 transitions. [2023-11-06 23:12:17,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:17,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 5422 transitions. [2023-11-06 23:12:17,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 23:12:17,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:17,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:17,644 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:12:17,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:17,837 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr340REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:17,837 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:17,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1459496966, now seen corresponding path program 1 times [2023-11-06 23:12:17,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:17,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [691643598] [2023-11-06 23:12:17,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:17,838 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 [2023-11-06 23:12:17,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:17,839 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:17,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:12:17,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:17,982 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 23:12:17,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:17,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:17,992 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:17,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:17,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [691643598] [2023-11-06 23:12:17,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [691643598] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:17,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:17,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:12:17,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126500854] [2023-11-06 23:12:17,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:17,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:12:17,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:17,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:12:17,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:17,995 INFO L87 Difference]: Start difference. First operand 3208 states and 5422 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:18,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:18,082 INFO L93 Difference]: Finished difference Result 3148 states and 5336 transitions. [2023-11-06 23:12:18,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:12:18,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-06 23:12:18,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:18,109 INFO L225 Difference]: With dead ends: 3148 [2023-11-06 23:12:18,109 INFO L226 Difference]: Without dead ends: 3148 [2023-11-06 23:12:18,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:18,111 INFO L413 NwaCegarLoop]: 2993 mSDtfsCounter, 81 mSDsluCounter, 2921 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 5914 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:18,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 5914 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:12:18,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3148 states. [2023-11-06 23:12:18,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3148 to 3148. [2023-11-06 23:12:18,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 1716 states have (on average 1.9393939393939394) internal successors, (3328), 3141 states have internal predecessors, (3328), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:12:18,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 5336 transitions. [2023-11-06 23:12:18,479 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 5336 transitions. Word has length 13 [2023-11-06 23:12:18,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:18,479 INFO L495 AbstractCegarLoop]: Abstraction has 3148 states and 5336 transitions. [2023-11-06 23:12:18,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:18,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 5336 transitions. [2023-11-06 23:12:18,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 23:12:18,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:18,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:18,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:12:18,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:18,692 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr533ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:18,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:18,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1349738800, now seen corresponding path program 1 times [2023-11-06 23:12:18,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:18,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417341383] [2023-11-06 23:12:18,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:18,694 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 [2023-11-06 23:12:18,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:18,698 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:18,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:12:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:18,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:12:18,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:18,898 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:12:18,899 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:12:18,899 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-06 23:12:18,909 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-11-06 23:12:18,987 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-06 23:12:18,987 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-11-06 23:12:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:19,008 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:19,008 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:19,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417341383] [2023-11-06 23:12:19,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417341383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:19,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:19,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:12:19,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550150078] [2023-11-06 23:12:19,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:19,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:12:19,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:19,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:12:19,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:19,013 INFO L87 Difference]: Start difference. First operand 3148 states and 5336 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:23,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:23,115 INFO L93 Difference]: Finished difference Result 5469 states and 9689 transitions. [2023-11-06 23:12:23,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:12:23,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-06 23:12:23,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:23,143 INFO L225 Difference]: With dead ends: 5469 [2023-11-06 23:12:23,143 INFO L226 Difference]: Without dead ends: 5469 [2023-11-06 23:12:23,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:23,144 INFO L413 NwaCegarLoop]: 3261 mSDtfsCounter, 1336 mSDsluCounter, 5621 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1836 SdHoareTripleChecker+Valid, 8882 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:23,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1836 Valid, 8882 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-06 23:12:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5469 states. [2023-11-06 23:12:23,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5469 to 3147. [2023-11-06 23:12:23,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3147 states, 1715 states have (on average 1.9393586005830903) internal successors, (3326), 3140 states have internal predecessors, (3326), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:12:23,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3147 states to 3147 states and 5334 transitions. [2023-11-06 23:12:23,728 INFO L78 Accepts]: Start accepts. Automaton has 3147 states and 5334 transitions. Word has length 14 [2023-11-06 23:12:23,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:23,728 INFO L495 AbstractCegarLoop]: Abstraction has 3147 states and 5334 transitions. [2023-11-06 23:12:23,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:23,728 INFO L276 IsEmpty]: Start isEmpty. Operand 3147 states and 5334 transitions. [2023-11-06 23:12:23,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-06 23:12:23,729 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:23,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:23,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:23,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:23,942 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:23,942 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:23,942 INFO L85 PathProgramCache]: Analyzing trace with hash -168464001, now seen corresponding path program 1 times [2023-11-06 23:12:23,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:23,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621896296] [2023-11-06 23:12:23,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:23,943 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:23,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:23,944 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:23,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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 [2023-11-06 23:12:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:24,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 23:12:24,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:24,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:24,165 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:24,165 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:24,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621896296] [2023-11-06 23:12:24,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621896296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:24,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:24,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:12:24,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376946684] [2023-11-06 23:12:24,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:24,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:12:24,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:24,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:12:24,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:24,168 INFO L87 Difference]: Start difference. First operand 3147 states and 5334 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:24,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:24,228 INFO L93 Difference]: Finished difference Result 3087 states and 5248 transitions. [2023-11-06 23:12:24,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:12:24,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-11-06 23:12:24,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:24,246 INFO L225 Difference]: With dead ends: 3087 [2023-11-06 23:12:24,246 INFO L226 Difference]: Without dead ends: 3087 [2023-11-06 23:12:24,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:12:24,249 INFO L413 NwaCegarLoop]: 2950 mSDtfsCounter, 81 mSDsluCounter, 2878 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 5828 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:24,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 5828 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:12:24,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3087 states. [2023-11-06 23:12:24,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3087 to 3087. [2023-11-06 23:12:24,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3087 states, 1679 states have (on average 1.9297200714711138) internal successors, (3240), 3080 states have internal predecessors, (3240), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:12:24,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3087 states to 3087 states and 5248 transitions. [2023-11-06 23:12:24,566 INFO L78 Accepts]: Start accepts. Automaton has 3087 states and 5248 transitions. Word has length 18 [2023-11-06 23:12:24,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:24,567 INFO L495 AbstractCegarLoop]: Abstraction has 3087 states and 5248 transitions. [2023-11-06 23:12:24,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:24,567 INFO L276 IsEmpty]: Start isEmpty. Operand 3087 states and 5248 transitions. [2023-11-06 23:12:24,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-06 23:12:24,568 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:24,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:24,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:24,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:24,780 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:24,780 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:24,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1314847992, now seen corresponding path program 1 times [2023-11-06 23:12:24,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:24,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [343117874] [2023-11-06 23:12:24,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:24,781 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 [2023-11-06 23:12:24,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:24,782 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:24,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-06 23:12:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:24,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:12:24,966 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:24,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:24,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:24,983 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:24,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [343117874] [2023-11-06 23:12:24,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [343117874] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:24,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:24,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:12:24,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382371526] [2023-11-06 23:12:24,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:24,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:12:24,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:24,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:12:24,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:24,985 INFO L87 Difference]: Start difference. First operand 3087 states and 5248 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:25,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:25,089 INFO L93 Difference]: Finished difference Result 3059 states and 5192 transitions. [2023-11-06 23:12:25,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:12:25,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-06 23:12:25,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:25,134 INFO L225 Difference]: With dead ends: 3059 [2023-11-06 23:12:25,135 INFO L226 Difference]: Without dead ends: 3059 [2023-11-06 23:12:25,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:25,136 INFO L413 NwaCegarLoop]: 2905 mSDtfsCounter, 62 mSDsluCounter, 5776 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 8681 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:25,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 8681 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:12:25,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3059 states. [2023-11-06 23:12:25,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3059 to 3057. [2023-11-06 23:12:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3057 states, 1663 states have (on average 1.9134095009019845) internal successors, (3182), 3050 states have internal predecessors, (3182), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:12:25,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 5190 transitions. [2023-11-06 23:12:25,483 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 5190 transitions. Word has length 20 [2023-11-06 23:12:25,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:25,483 INFO L495 AbstractCegarLoop]: Abstraction has 3057 states and 5190 transitions. [2023-11-06 23:12:25,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:25,484 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 5190 transitions. [2023-11-06 23:12:25,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 23:12:25,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:25,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:25,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:25,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:25,698 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:25,698 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:25,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1346685766, now seen corresponding path program 1 times [2023-11-06 23:12:25,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:25,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394489256] [2023-11-06 23:12:25,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:25,699 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 [2023-11-06 23:12:25,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:25,700 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:25,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-06 23:12:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:25,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:12:25,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:25,944 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:12:26,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:26,018 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:26,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:26,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394489256] [2023-11-06 23:12:26,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394489256] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:26,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:26,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:12:26,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477514403] [2023-11-06 23:12:26,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:26,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:12:26,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:26,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:12:26,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:26,020 INFO L87 Difference]: Start difference. First operand 3057 states and 5190 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:31,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:31,217 INFO L93 Difference]: Finished difference Result 5297 states and 9486 transitions. [2023-11-06 23:12:31,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:12:31,219 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-06 23:12:31,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:31,235 INFO L225 Difference]: With dead ends: 5297 [2023-11-06 23:12:31,236 INFO L226 Difference]: Without dead ends: 5297 [2023-11-06 23:12:31,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:31,237 INFO L413 NwaCegarLoop]: 2583 mSDtfsCounter, 1690 mSDsluCounter, 3175 mSDsCounter, 0 mSdLazyCounter, 2487 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2193 SdHoareTripleChecker+Valid, 5758 SdHoareTripleChecker+Invalid, 2495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:31,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2193 Valid, 5758 Invalid, 2495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 2487 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-11-06 23:12:31,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5297 states. [2023-11-06 23:12:31,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5297 to 3053. [2023-11-06 23:12:31,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3053 states, 1663 states have (on average 1.9085989176187612) internal successors, (3174), 3046 states have internal predecessors, (3174), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:12:31,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3053 states to 3053 states and 5182 transitions. [2023-11-06 23:12:31,808 INFO L78 Accepts]: Start accepts. Automaton has 3053 states and 5182 transitions. Word has length 34 [2023-11-06 23:12:31,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:31,809 INFO L495 AbstractCegarLoop]: Abstraction has 3053 states and 5182 transitions. [2023-11-06 23:12:31,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:31,809 INFO L276 IsEmpty]: Start isEmpty. Operand 3053 states and 5182 transitions. [2023-11-06 23:12:31,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-06 23:12:31,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:31,811 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:31,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:32,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:32,023 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:32,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:32,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1346685767, now seen corresponding path program 1 times [2023-11-06 23:12:32,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:32,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108230253] [2023-11-06 23:12:32,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:32,024 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 [2023-11-06 23:12:32,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:32,025 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:32,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-06 23:12:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:32,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 23:12:32,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:32,235 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:12:32,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:32,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:32,439 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:32,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108230253] [2023-11-06 23:12:32,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108230253] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:32,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:32,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:12:32,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897093374] [2023-11-06 23:12:32,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:32,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:12:32,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:32,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:12:32,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:32,441 INFO L87 Difference]: Start difference. First operand 3053 states and 5182 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:39,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:39,127 INFO L93 Difference]: Finished difference Result 5339 states and 9493 transitions. [2023-11-06 23:12:39,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:12:39,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-06 23:12:39,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:39,145 INFO L225 Difference]: With dead ends: 5339 [2023-11-06 23:12:39,145 INFO L226 Difference]: Without dead ends: 5339 [2023-11-06 23:12:39,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:39,146 INFO L413 NwaCegarLoop]: 4943 mSDtfsCounter, 1379 mSDsluCounter, 5923 mSDsCounter, 0 mSdLazyCounter, 2597 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 10866 SdHoareTripleChecker+Invalid, 2600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:39,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 10866 Invalid, 2600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2597 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-06 23:12:39,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2023-11-06 23:12:39,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 3049. [2023-11-06 23:12:39,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3049 states, 1663 states have (on average 1.9037883343355382) internal successors, (3166), 3042 states have internal predecessors, (3166), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:12:39,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3049 states to 3049 states and 5174 transitions. [2023-11-06 23:12:39,795 INFO L78 Accepts]: Start accepts. Automaton has 3049 states and 5174 transitions. Word has length 34 [2023-11-06 23:12:39,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:39,795 INFO L495 AbstractCegarLoop]: Abstraction has 3049 states and 5174 transitions. [2023-11-06 23:12:39,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 23:12:39,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3049 states and 5174 transitions. [2023-11-06 23:12:39,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-06 23:12:39,797 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:39,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:39,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:40,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:40,017 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:40,018 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:40,019 INFO L85 PathProgramCache]: Analyzing trace with hash -585509776, now seen corresponding path program 1 times [2023-11-06 23:12:40,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:40,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012444920] [2023-11-06 23:12:40,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:40,020 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 [2023-11-06 23:12:40,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:40,021 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:40,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-06 23:12:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:40,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:12:40,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:40,358 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:40,358 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:40,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012444920] [2023-11-06 23:12:40,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012444920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:40,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:40,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:12:40,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231842947] [2023-11-06 23:12:40,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:40,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:12:40,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:40,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:12:40,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:40,361 INFO L87 Difference]: Start difference. First operand 3049 states and 5174 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-11-06 23:12:40,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:40,450 INFO L93 Difference]: Finished difference Result 3037 states and 5154 transitions. [2023-11-06 23:12:40,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:12:40,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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 53 [2023-11-06 23:12:40,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:40,465 INFO L225 Difference]: With dead ends: 3037 [2023-11-06 23:12:40,465 INFO L226 Difference]: Without dead ends: 3037 [2023-11-06 23:12:40,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:40,467 INFO L413 NwaCegarLoop]: 2899 mSDtfsCounter, 31 mSDsluCounter, 5760 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 8659 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:40,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 8659 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:12:40,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3037 states. [2023-11-06 23:12:40,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3037 to 3037. [2023-11-06 23:12:40,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3037 states, 1651 states have (on average 1.905511811023622) internal successors, (3146), 3030 states have internal predecessors, (3146), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:12:40,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 5154 transitions. [2023-11-06 23:12:40,810 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 5154 transitions. Word has length 53 [2023-11-06 23:12:40,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:40,812 INFO L495 AbstractCegarLoop]: Abstraction has 3037 states and 5154 transitions. [2023-11-06 23:12:40,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2023-11-06 23:12:40,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 5154 transitions. [2023-11-06 23:12:40,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-06 23:12:40,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:40,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:40,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:41,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:41,030 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:41,030 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:41,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1514336476, now seen corresponding path program 1 times [2023-11-06 23:12:41,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:41,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810540642] [2023-11-06 23:12:41,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:41,032 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 [2023-11-06 23:12:41,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:41,033 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:41,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-06 23:12:41,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:41,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 23:12:41,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:41,420 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:12:41,425 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:12:42,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 23:12:42,055 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-06 23:12:42,068 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 23:12:42,068 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-06 23:12:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:42,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:42,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:42,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810540642] [2023-11-06 23:12:42,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810540642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:42,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:42,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 23:12:42,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592215581] [2023-11-06 23:12:42,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:42,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:12:42,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:42,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:12:42,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:42,084 INFO L87 Difference]: Start difference. First operand 3037 states and 5154 transitions. Second operand has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-06 23:12:47,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:47,980 INFO L93 Difference]: Finished difference Result 5243 states and 9420 transitions. [2023-11-06 23:12:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:12:47,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2023-11-06 23:12:47,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:48,005 INFO L225 Difference]: With dead ends: 5243 [2023-11-06 23:12:48,005 INFO L226 Difference]: Without dead ends: 5243 [2023-11-06 23:12:48,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:48,006 INFO L413 NwaCegarLoop]: 2460 mSDtfsCounter, 4357 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 1636 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5360 SdHoareTripleChecker+Valid, 3681 SdHoareTripleChecker+Invalid, 2184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:48,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5360 Valid, 3681 Invalid, 2184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1636 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-06 23:12:48,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5243 states. [2023-11-06 23:12:48,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5243 to 2967. [2023-11-06 23:12:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2967 states, 1619 states have (on average 1.8789376158122297) internal successors, (3042), 2960 states have internal predecessors, (3042), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:12:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2967 states to 2967 states and 5050 transitions. [2023-11-06 23:12:48,680 INFO L78 Accepts]: Start accepts. Automaton has 2967 states and 5050 transitions. Word has length 61 [2023-11-06 23:12:48,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:48,681 INFO L495 AbstractCegarLoop]: Abstraction has 2967 states and 5050 transitions. [2023-11-06 23:12:48,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.333333333333332) internal successors, (61), 4 states have internal predecessors, (61), 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) [2023-11-06 23:12:48,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2967 states and 5050 transitions. [2023-11-06 23:12:48,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 23:12:48,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:48,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:48,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:48,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:48,909 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:48,910 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:48,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1287372127, now seen corresponding path program 1 times [2023-11-06 23:12:48,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:48,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003295071] [2023-11-06 23:12:48,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:48,911 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 [2023-11-06 23:12:48,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:48,913 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:48,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-06 23:12:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:49,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 23:12:49,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:49,282 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:12:49,298 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:12:49,330 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-06 23:12:49,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:49,342 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:49,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:49,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003295071] [2023-11-06 23:12:49,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003295071] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:49,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:49,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:12:49,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430711879] [2023-11-06 23:12:49,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:49,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:12:49,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:49,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:12:49,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:49,344 INFO L87 Difference]: Start difference. First operand 2967 states and 5050 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-06 23:12:52,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:52,029 INFO L93 Difference]: Finished difference Result 2966 states and 5049 transitions. [2023-11-06 23:12:52,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:12:52,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2023-11-06 23:12:52,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:52,038 INFO L225 Difference]: With dead ends: 2966 [2023-11-06 23:12:52,038 INFO L226 Difference]: Without dead ends: 2966 [2023-11-06 23:12:52,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:12:52,039 INFO L413 NwaCegarLoop]: 2872 mSDtfsCounter, 4 mSDsluCounter, 7378 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 10250 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:52,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 10250 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-06 23:12:52,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2023-11-06 23:12:52,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2966. [2023-11-06 23:12:52,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2966 states, 1619 states have (on average 1.878319950586782) internal successors, (3041), 2959 states have internal predecessors, (3041), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:12:52,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 5049 transitions. [2023-11-06 23:12:52,393 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 5049 transitions. Word has length 66 [2023-11-06 23:12:52,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:52,395 INFO L495 AbstractCegarLoop]: Abstraction has 2966 states and 5049 transitions. [2023-11-06 23:12:52,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-06 23:12:52,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 5049 transitions. [2023-11-06 23:12:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 23:12:52,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:52,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:52,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:52,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:52,612 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:52,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:52,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1287372128, now seen corresponding path program 1 times [2023-11-06 23:12:52,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:52,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442631010] [2023-11-06 23:12:52,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:52,617 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 [2023-11-06 23:12:52,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:52,618 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:52,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-06 23:12:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:52,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-06 23:12:52,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:52,998 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:12:53,018 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:12:53,025 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-06 23:12:53,085 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-06 23:12:53,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:53,107 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:53,107 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:53,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442631010] [2023-11-06 23:12:53,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442631010] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:53,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:53,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:12:53,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056083259] [2023-11-06 23:12:53,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:53,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 23:12:53,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:53,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 23:12:53,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:53,109 INFO L87 Difference]: Start difference. First operand 2966 states and 5049 transitions. Second operand has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-06 23:12:56,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:56,605 INFO L93 Difference]: Finished difference Result 2965 states and 5048 transitions. [2023-11-06 23:12:56,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 23:12:56,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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 66 [2023-11-06 23:12:56,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:56,614 INFO L225 Difference]: With dead ends: 2965 [2023-11-06 23:12:56,614 INFO L226 Difference]: Without dead ends: 2965 [2023-11-06 23:12:56,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 23:12:56,616 INFO L413 NwaCegarLoop]: 2872 mSDtfsCounter, 2 mSDsluCounter, 7414 mSDsCounter, 0 mSdLazyCounter, 1205 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10286 SdHoareTripleChecker+Invalid, 1206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:56,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10286 Invalid, 1206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1205 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2023-11-06 23:12:56,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2965 states. [2023-11-06 23:12:56,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2965 to 2965. [2023-11-06 23:12:56,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2965 states, 1618 states have (on average 1.8788627935723115) internal successors, (3040), 2958 states have internal predecessors, (3040), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2023-11-06 23:12:56,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2965 states to 2965 states and 5048 transitions. [2023-11-06 23:12:56,946 INFO L78 Accepts]: Start accepts. Automaton has 2965 states and 5048 transitions. Word has length 66 [2023-11-06 23:12:56,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:56,947 INFO L495 AbstractCegarLoop]: Abstraction has 2965 states and 5048 transitions. [2023-11-06 23:12:56,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.5) internal successors, (66), 5 states have internal predecessors, (66), 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) [2023-11-06 23:12:56,947 INFO L276 IsEmpty]: Start isEmpty. Operand 2965 states and 5048 transitions. [2023-11-06 23:12:56,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 23:12:56,948 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:56,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:56,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-11-06 23:12:57,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:57,164 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:57,164 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:57,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2123507750, now seen corresponding path program 1 times [2023-11-06 23:12:57,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:57,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487890429] [2023-11-06 23:12:57,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:57,165 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 [2023-11-06 23:12:57,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:57,166 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:57,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-06 23:12:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:57,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 23:12:57,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:57,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:57,523 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 23:12:57,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:57,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487890429] [2023-11-06 23:12:57,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [487890429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:12:57,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:12:57,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:12:57,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383215631] [2023-11-06 23:12:57,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:12:57,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:12:57,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:57,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:12:57,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:12:57,526 INFO L87 Difference]: Start difference. First operand 2965 states and 5048 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2023-11-06 23:12:57,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:57,612 INFO L93 Difference]: Finished difference Result 2968 states and 5052 transitions. [2023-11-06 23:12:57,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 23:12:57,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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 74 [2023-11-06 23:12:57,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:57,626 INFO L225 Difference]: With dead ends: 2968 [2023-11-06 23:12:57,626 INFO L226 Difference]: Without dead ends: 2968 [2023-11-06 23:12:57,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:12:57,627 INFO L413 NwaCegarLoop]: 2872 mSDtfsCounter, 2 mSDsluCounter, 5739 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8611 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:57,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8611 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 23:12:57,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2023-11-06 23:12:58,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2968. [2023-11-06 23:12:58,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2968 states, 1620 states have (on average 1.878395061728395) internal successors, (3043), 2961 states have internal predecessors, (3043), 1005 states have call successors, (1005), 3 states have call predecessors, (1005), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-06 23:12:58,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2968 states to 2968 states and 5052 transitions. [2023-11-06 23:12:58,015 INFO L78 Accepts]: Start accepts. Automaton has 2968 states and 5052 transitions. Word has length 74 [2023-11-06 23:12:58,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:58,015 INFO L495 AbstractCegarLoop]: Abstraction has 2968 states and 5052 transitions. [2023-11-06 23:12:58,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 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) [2023-11-06 23:12:58,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2968 states and 5052 transitions. [2023-11-06 23:12:58,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 23:12:58,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:58,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:58,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-11-06 23:12:58,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:58,231 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:58,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:58,232 INFO L85 PathProgramCache]: Analyzing trace with hash -296271190, now seen corresponding path program 1 times [2023-11-06 23:12:58,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:58,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17406358] [2023-11-06 23:12:58,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:12:58,233 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 [2023-11-06 23:12:58,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:58,234 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:58,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-06 23:12:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:12:58,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 23:12:58,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:12:58,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:58,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:12:58,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:12:58,694 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:12:58,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17406358] [2023-11-06 23:12:58,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17406358] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:12:58,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:12:58,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 23:12:58,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627338888] [2023-11-06 23:12:58,695 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:12:58,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 23:12:58,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:12:58,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 23:12:58,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 23:12:58,699 INFO L87 Difference]: Start difference. First operand 2968 states and 5052 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:12:58,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:12:58,919 INFO L93 Difference]: Finished difference Result 2980 states and 5069 transitions. [2023-11-06 23:12:58,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:12:58,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2023-11-06 23:12:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:12:58,932 INFO L225 Difference]: With dead ends: 2980 [2023-11-06 23:12:58,932 INFO L226 Difference]: Without dead ends: 2980 [2023-11-06 23:12:58,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-06 23:12:58,933 INFO L413 NwaCegarLoop]: 2873 mSDtfsCounter, 9 mSDsluCounter, 8607 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 11480 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:12:58,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 11480 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 23:12:58,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2980 states. [2023-11-06 23:12:59,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2980 to 2978. [2023-11-06 23:12:59,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2978 states, 1629 states have (on average 1.8772252915899326) internal successors, (3058), 2970 states have internal predecessors, (3058), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-06 23:12:59,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2978 states to 2978 states and 5067 transitions. [2023-11-06 23:12:59,440 INFO L78 Accepts]: Start accepts. Automaton has 2978 states and 5067 transitions. Word has length 75 [2023-11-06 23:12:59,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:12:59,441 INFO L495 AbstractCegarLoop]: Abstraction has 2978 states and 5067 transitions. [2023-11-06 23:12:59,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:12:59,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2978 states and 5067 transitions. [2023-11-06 23:12:59,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-06 23:12:59,442 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:12:59,442 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:12:59,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-11-06 23:12:59,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:59,657 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:12:59,658 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:12:59,658 INFO L85 PathProgramCache]: Analyzing trace with hash -733566682, now seen corresponding path program 2 times [2023-11-06 23:12:59,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:12:59,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960990324] [2023-11-06 23:12:59,659 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 23:12:59,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:12:59,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:12:59,660 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:12:59,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-06 23:13:00,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 23:13:00,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:13:00,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 23:13:00,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:13:00,379 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:13:00,379 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:13:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:13:00,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:13:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960990324] [2023-11-06 23:13:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960990324] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:13:00,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:13:00,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-06 23:13:00,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688211450] [2023-11-06 23:13:00,550 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:13:00,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 23:13:00,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:13:00,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 23:13:00,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-06 23:13:00,552 INFO L87 Difference]: Start difference. First operand 2978 states and 5067 transitions. Second operand has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:13:01,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:13:01,251 INFO L93 Difference]: Finished difference Result 2999 states and 5095 transitions. [2023-11-06 23:13:01,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-06 23:13:01,252 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2023-11-06 23:13:01,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:13:01,263 INFO L225 Difference]: With dead ends: 2999 [2023-11-06 23:13:01,263 INFO L226 Difference]: Without dead ends: 2995 [2023-11-06 23:13:01,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-06 23:13:01,264 INFO L413 NwaCegarLoop]: 2876 mSDtfsCounter, 20 mSDsluCounter, 14363 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 17239 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 23:13:01,265 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 17239 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 23:13:01,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2023-11-06 23:13:01,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2987. [2023-11-06 23:13:01,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2987 states, 1638 states have (on average 1.8742368742368742) internal successors, (3070), 2979 states have internal predecessors, (3070), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-06 23:13:01,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2987 states to 2987 states and 5079 transitions. [2023-11-06 23:13:01,728 INFO L78 Accepts]: Start accepts. Automaton has 2987 states and 5079 transitions. Word has length 78 [2023-11-06 23:13:01,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:13:01,729 INFO L495 AbstractCegarLoop]: Abstraction has 2987 states and 5079 transitions. [2023-11-06 23:13:01,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.928571428571429) internal successors, (83), 14 states have internal predecessors, (83), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:13:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2987 states and 5079 transitions. [2023-11-06 23:13:01,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-06 23:13:01,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:13:01,730 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:13:01,746 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-11-06 23:13:01,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:13:01,945 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:13:01,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:13:01,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1952283302, now seen corresponding path program 3 times [2023-11-06 23:13:01,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:13:01,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013706641] [2023-11-06 23:13:01,947 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-06 23:13:01,947 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 [2023-11-06 23:13:01,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:13:01,948 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:13:01,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-11-06 23:13:02,655 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-06 23:13:02,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:13:02,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-06 23:13:02,675 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:13:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:13:02,845 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:13:03,545 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:13:03,545 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:13:03,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013706641] [2023-11-06 23:13:03,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013706641] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:13:03,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:13:03,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-06 23:13:03,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886769270] [2023-11-06 23:13:03,547 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:13:03,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-06 23:13:03,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:13:03,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-06 23:13:03,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-06 23:13:03,549 INFO L87 Difference]: Start difference. First operand 2987 states and 5079 transitions. Second operand has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:13:06,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:13:06,372 INFO L93 Difference]: Finished difference Result 3029 states and 5141 transitions. [2023-11-06 23:13:06,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-06 23:13:06,373 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2023-11-06 23:13:06,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:13:06,385 INFO L225 Difference]: With dead ends: 3029 [2023-11-06 23:13:06,385 INFO L226 Difference]: Without dead ends: 3023 [2023-11-06 23:13:06,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=793, Invalid=1559, Unknown=0, NotChecked=0, Total=2352 [2023-11-06 23:13:06,387 INFO L413 NwaCegarLoop]: 2881 mSDtfsCounter, 58 mSDsluCounter, 31648 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 34529 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-06 23:13:06,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 34529 Invalid, 767 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-06 23:13:06,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3023 states. [2023-11-06 23:13:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3023 to 3005. [2023-11-06 23:13:06,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3005 states, 1656 states have (on average 1.8677536231884058) internal successors, (3093), 2997 states have internal predecessors, (3093), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-06 23:13:06,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 5102 transitions. [2023-11-06 23:13:06,814 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 5102 transitions. Word has length 84 [2023-11-06 23:13:06,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:13:06,815 INFO L495 AbstractCegarLoop]: Abstraction has 3005 states and 5102 transitions. [2023-11-06 23:13:06,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6538461538461537) internal successors, (95), 26 states have internal predecessors, (95), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:13:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 5102 transitions. [2023-11-06 23:13:06,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-06 23:13:06,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:13:06,816 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:13:06,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-11-06 23:13:07,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:13:07,033 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:13:07,034 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:13:07,034 INFO L85 PathProgramCache]: Analyzing trace with hash -27673178, now seen corresponding path program 4 times [2023-11-06 23:13:07,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:13:07,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2140593411] [2023-11-06 23:13:07,035 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-06 23:13:07,035 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 [2023-11-06 23:13:07,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:13:07,036 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:13:07,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-11-06 23:13:07,547 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-06 23:13:07,548 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:13:07,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-06 23:13:07,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:13:08,058 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:13:08,058 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:13:09,867 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:13:09,867 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:13:09,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2140593411] [2023-11-06 23:13:09,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2140593411] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 23:13:09,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:13:09,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-06 23:13:09,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182923939] [2023-11-06 23:13:09,868 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:13:09,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-06 23:13:09,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:13:09,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-06 23:13:09,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-06 23:13:09,873 INFO L87 Difference]: Start difference. First operand 3005 states and 5102 transitions. Second operand has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:13:19,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:13:19,234 INFO L93 Difference]: Finished difference Result 3085 states and 5214 transitions. [2023-11-06 23:13:19,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-11-06 23:13:19,234 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 96 [2023-11-06 23:13:19,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:13:19,252 INFO L225 Difference]: With dead ends: 3085 [2023-11-06 23:13:19,253 INFO L226 Difference]: Without dead ends: 3081 [2023-11-06 23:13:19,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1385 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=3791, Invalid=9319, Unknown=0, NotChecked=0, Total=13110 [2023-11-06 23:13:19,259 INFO L413 NwaCegarLoop]: 2893 mSDtfsCounter, 73 mSDsluCounter, 66451 mSDsCounter, 0 mSdLazyCounter, 2423 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 69344 SdHoareTripleChecker+Invalid, 2469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-06 23:13:19,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 69344 Invalid, 2469 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [46 Valid, 2423 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-06 23:13:19,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3081 states. [2023-11-06 23:13:19,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3081 to 3039. [2023-11-06 23:13:19,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 1690 states have (on average 1.857396449704142) internal successors, (3139), 3031 states have internal predecessors, (3139), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-06 23:13:19,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 5148 transitions. [2023-11-06 23:13:19,771 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 5148 transitions. Word has length 96 [2023-11-06 23:13:19,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:13:19,772 INFO L495 AbstractCegarLoop]: Abstraction has 3039 states and 5148 transitions. [2023-11-06 23:13:19,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.38) internal successors, (119), 50 states have internal predecessors, (119), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 23:13:19,772 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 5148 transitions. [2023-11-06 23:13:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-06 23:13:19,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:13:19,773 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:13:19,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-11-06 23:13:19,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:13:19,990 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:13:19,990 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:13:19,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1440756518, now seen corresponding path program 5 times [2023-11-06 23:13:19,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:13:19,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [532720083] [2023-11-06 23:13:19,991 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 23:13:19,991 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 [2023-11-06 23:13:19,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:13:19,993 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:13:20,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-11-06 23:13:21,484 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 23:13:21,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:13:21,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 57 conjunts are in the unsatisfiable core [2023-11-06 23:13:21,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:13:21,555 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:13:21,687 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 23:13:21,687 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-06 23:13:21,726 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:13:21,824 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-06 23:13:22,870 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 23:13:22,870 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-06 23:13:22,914 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-06 23:13:22,952 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 23:13:22,952 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:13:23,417 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1990 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_1990) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2023-11-06 23:13:23,419 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:13:23,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [532720083] [2023-11-06 23:13:23,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [532720083] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:13:23,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1301652669] [2023-11-06 23:13:23,420 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-06 23:13:23,420 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 23:13:23,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 23:13:23,422 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 23:13:23,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-11-06 23:14:32,087 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-06 23:14:32,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 23:14:32,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-06 23:14:32,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:14:32,334 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:14:32,473 INFO L322 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-06 23:14:32,473 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-06 23:14:32,499 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:14:32,568 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-06 23:14:33,470 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 23:14:33,470 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-06 23:14:33,506 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-06 23:14:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 23:14:33,515 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:14:35,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1301652669] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:14:35,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 23:14:35,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-11-06 23:14:35,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605060356] [2023-11-06 23:14:35,987 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 23:14:35,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-06 23:14:35,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 23:14:35,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-06 23:14:35,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=101, Unknown=3, NotChecked=20, Total=156 [2023-11-06 23:14:35,989 INFO L87 Difference]: Start difference. First operand 3039 states and 5148 transitions. Second operand has 9 states, 7 states have (on average 10.571428571428571) internal successors, (74), 9 states have internal predecessors, (74), 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) [2023-11-06 23:14:58,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:14:58,412 INFO L93 Difference]: Finished difference Result 5286 states and 9453 transitions. [2023-11-06 23:14:58,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-06 23:14:58,414 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 10.571428571428571) internal successors, (74), 9 states have internal predecessors, (74), 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 118 [2023-11-06 23:14:58,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:14:58,428 INFO L225 Difference]: With dead ends: 5286 [2023-11-06 23:14:58,428 INFO L226 Difference]: Without dead ends: 5282 [2023-11-06 23:14:58,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 228 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=51, Invalid=160, Unknown=3, NotChecked=26, Total=240 [2023-11-06 23:14:58,429 INFO L413 NwaCegarLoop]: 2573 mSDtfsCounter, 1574 mSDsluCounter, 8760 mSDsCounter, 0 mSdLazyCounter, 6873 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2076 SdHoareTripleChecker+Valid, 11333 SdHoareTripleChecker+Invalid, 6878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 6873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:14:58,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2076 Valid, 11333 Invalid, 6878 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 6873 Invalid, 0 Unknown, 0 Unchecked, 22.1s Time] [2023-11-06 23:14:58,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5282 states. [2023-11-06 23:14:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5282 to 3038. [2023-11-06 23:14:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3038 states, 1690 states have (on average 1.8544378698224853) internal successors, (3134), 3030 states have internal predecessors, (3134), 1005 states have call successors, (1005), 4 states have call predecessors, (1005), 4 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2023-11-06 23:14:59,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3038 states to 3038 states and 5143 transitions. [2023-11-06 23:14:59,184 INFO L78 Accepts]: Start accepts. Automaton has 3038 states and 5143 transitions. Word has length 118 [2023-11-06 23:14:59,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:14:59,184 INFO L495 AbstractCegarLoop]: Abstraction has 3038 states and 5143 transitions. [2023-11-06 23:14:59,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 10.571428571428571) internal successors, (74), 9 states have internal predecessors, (74), 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) [2023-11-06 23:14:59,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3038 states and 5143 transitions. [2023-11-06 23:14:59,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-06 23:14:59,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:14:59,186 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:14:59,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-11-06 23:14:59,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-11-06 23:14:59,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 23:14:59,614 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr81REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 532 more)] === [2023-11-06 23:14:59,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:14:59,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1440756519, now seen corresponding path program 1 times [2023-11-06 23:14:59,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 23:14:59,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1374612575] [2023-11-06 23:14:59,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:14:59,616 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 [2023-11-06 23:14:59,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 23:14:59,617 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -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) [2023-11-06 23:14:59,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-11-06 23:15:00,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:15:00,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 109 conjunts are in the unsatisfiable core [2023-11-06 23:15:00,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 23:15:00,478 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-06 23:15:00,625 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-06 23:15:00,640 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-06 23:15:00,641 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-06 23:15:00,670 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-06 23:15:00,688 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-06 23:15:00,812 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-06 23:15:00,818 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-06 23:15:01,630 INFO L322 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-06 23:15:01,630 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-06 23:15:01,643 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-06 23:15:01,688 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-06 23:15:01,694 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-06 23:15:01,727 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-06 23:15:01,727 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 23:15:03,417 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3006 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3006) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd (_ bv20 32) .cse0)))) (forall ((v_ArrVal_3006 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3005 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3006) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_#t~mem38#1.base| v_ArrVal_3005) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2023-11-06 23:15:03,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 23:15:03,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1374612575] [2023-11-06 23:15:03,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1374612575] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 23:15:03,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [592258658] [2023-11-06 23:15:03,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:15:03,425 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 23:15:03,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 23:15:03,429 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 23:15:03,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f032bc1-6493-4bf7-b712-ce0bce8e110d/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process