./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:43,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:43,749 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:10:43,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:43,755 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:43,783 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:43,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:43,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:43,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:43,786 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:43,787 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:43,788 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:43,788 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:43,789 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:43,789 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:43,790 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:43,791 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:43,791 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:43,792 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:43,792 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:43,793 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:43,794 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:43,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:10:43,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:10:43,796 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:43,796 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:10:43,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:43,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:10:43,797 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:43,798 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:10:43,798 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:10:43,799 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:10:43,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:43,800 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:10:43,800 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:10:43,800 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:10:43,801 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:43,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:43,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:43,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:43,804 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:43,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:43,805 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:43,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:43,806 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:43,806 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:43,806 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2023-11-12 00:10:44,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:44,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:44,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:44,142 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:44,143 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:44,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2023-11-12 00:10:47,325 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:47,781 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:47,782 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2023-11-12 00:10:47,807 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/data/28733e197/845b2ad80ac84140923564482ff0be2f/FLAG0b7bced18 [2023-11-12 00:10:47,821 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/data/28733e197/845b2ad80ac84140923564482ff0be2f [2023-11-12 00:10:47,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:47,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:47,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:47,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:47,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:47,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:47" (1/1) ... [2023-11-12 00:10:47,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56fa2fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:47, skipping insertion in model container [2023-11-12 00:10:47,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:47" (1/1) ... [2023-11-12 00:10:47,908 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:48,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:48,821 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) [2023-11-12 00:10:48,832 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@492a5281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:48, skipping insertion in model container [2023-11-12 00:10:48,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:48,833 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-12 00:10:48,835 INFO L158 Benchmark]: Toolchain (without parser) took 1009.03ms. Allocated memory is still 155.2MB. Free memory was 107.4MB in the beginning and 85.9MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 00:10:48,836 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 155.2MB. Free memory was 123.5MB in the beginning and 123.5MB in the end (delta: 34.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:48,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1006.36ms. Allocated memory is still 155.2MB. Free memory was 107.4MB in the beginning and 85.9MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-12 00:10:48,839 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 155.2MB. Free memory was 123.5MB in the beginning and 123.5MB in the end (delta: 34.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1006.36ms. Allocated memory is still 155.2MB. Free memory was 107.4MB in the beginning and 85.9MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 990]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:51,438 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:51,564 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2023-11-12 00:10:51,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:51,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:51,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:51,621 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:51,622 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:51,623 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:51,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:51,628 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:51,629 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:51,629 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:51,631 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:51,632 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:51,632 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:51,633 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:10:51,633 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:10:51,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:51,635 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:10:51,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:51,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:10:51,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:51,637 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:10:51,638 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:10:51,638 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:10:51,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:51,639 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:10:51,639 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:10:51,640 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:10:51,641 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:10:51,642 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:10:51,642 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:51,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:51,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:10:51,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:51,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:51,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:51,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:51,645 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:10:51,645 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:10:51,646 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:51,646 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:51,646 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05edfd344a133924af20e7887ded3d695179bf474d7b39ea2b7287f4a108ff8d [2023-11-12 00:10:52,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:52,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:52,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:52,074 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:52,074 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:52,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2023-11-12 00:10:55,345 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:55,778 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:55,779 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-1.i [2023-11-12 00:10:55,806 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/data/6d3cda033/6ac1b99a0df04cebbb841b376299e27f/FLAG9c40ffeab [2023-11-12 00:10:55,821 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/data/6d3cda033/6ac1b99a0df04cebbb841b376299e27f [2023-11-12 00:10:55,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:55,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:55,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:55,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:55,834 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:55,835 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,837 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34b26df6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:55, skipping insertion in model container [2023-11-12 00:10:55,838 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:55" (1/1) ... [2023-11-12 00:10:55,929 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:56,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:56,893 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-12 00:10:56,930 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:57,027 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:57,047 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:57,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:57,228 WARN L672 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:10:57,237 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:57,237 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57 WrapperNode [2023-11-12 00:10:57,237 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:57,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:57,239 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:57,239 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:57,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,286 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,362 INFO L138 Inliner]: procedures = 285, calls = 298, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1048 [2023-11-12 00:10:57,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:57,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:57,371 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:57,371 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:57,381 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,493 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,515 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,538 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:57,539 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:57,539 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:57,540 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:57,540 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (1/1) ... [2023-11-12 00:10:57,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:57,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:57,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:57,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-12 00:10:57,625 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-12 00:10:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-12 00:10:57,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 00:10:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:10:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-12 00:10:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:10:57,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:10:57,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 00:10:57,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:10:57,629 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2023-11-12 00:10:57,629 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2023-11-12 00:10:57,629 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-12 00:10:57,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-12 00:10:57,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:10:57,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:57,630 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2023-11-12 00:10:57,631 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2023-11-12 00:10:57,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:10:57,631 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2023-11-12 00:10:57,631 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2023-11-12 00:10:57,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:57,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:57,917 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:57,922 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:11:03,344 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:11:03,375 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:11:03,378 INFO L302 CfgBuilder]: Removed 63 assume(true) statements. [2023-11-12 00:11:03,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:03 BoogieIcfgContainer [2023-11-12 00:11:03,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:11:03,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:11:03,387 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:11:03,390 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:11:03,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:55" (1/3) ... [2023-11-12 00:11:03,392 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b34e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:03, skipping insertion in model container [2023-11-12 00:11:03,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:57" (2/3) ... [2023-11-12 00:11:03,394 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b34e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:03, skipping insertion in model container [2023-11-12 00:11:03,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:03" (3/3) ... [2023-11-12 00:11:03,396 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-1.i [2023-11-12 00:11:03,417 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:11:03,418 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 528 error locations. [2023-11-12 00:11:03,504 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:11:03,511 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=FINITE_AUTOMATA, 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;@168d7d9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:11:03,512 INFO L358 AbstractCegarLoop]: Starting to check reachability of 528 error locations. [2023-11-12 00:11:03,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 1092 states, 541 states have (on average 2.2070240295748613) internal successors, (1194), 1072 states have internal predecessors, (1194), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-12 00:11:03,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 00:11:03,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:03,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 00:11:03,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-12 00:11:03,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:03,543 INFO L85 PathProgramCache]: Analyzing trace with hash 85465, now seen corresponding path program 1 times [2023-11-12 00:11:03,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:03,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837002116] [2023-11-12 00:11:03,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:03,557 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 [2023-11-12 00:11:03,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:03,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:11:03,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:03,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:11:03,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:03,905 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 [2023-11-12 00:11:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:03,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:03,927 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:11:03,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837002116] [2023-11-12 00:11:03,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837002116] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:03,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:03,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:11:03,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389583633] [2023-11-12 00:11:03,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:03,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:03,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:11:03,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:03,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:03,978 INFO L87 Difference]: Start difference. First operand has 1092 states, 541 states have (on average 2.2070240295748613) internal successors, (1194), 1072 states have internal predecessors, (1194), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) 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) [2023-11-12 00:11:06,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:06,431 INFO L93 Difference]: Finished difference Result 1173 states and 1242 transitions. [2023-11-12 00:11:06,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:06,434 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 [2023-11-12 00:11:06,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:06,456 INFO L225 Difference]: With dead ends: 1173 [2023-11-12 00:11:06,456 INFO L226 Difference]: Without dead ends: 1171 [2023-11-12 00:11:06,458 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 [2023-11-12 00:11:06,461 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 721 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1055 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:06,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1055 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-12 00:11:06,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2023-11-12 00:11:06,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1113. [2023-11-12 00:11:06,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 577 states have (on average 2.065857885615251) internal successors, (1192), 1095 states have internal predecessors, (1192), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 00:11:06,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 1222 transitions. [2023-11-12 00:11:06,604 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 1222 transitions. Word has length 3 [2023-11-12 00:11:06,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:06,605 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 1222 transitions. [2023-11-12 00:11:06,605 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) [2023-11-12 00:11:06,605 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 1222 transitions. [2023-11-12 00:11:06,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-12 00:11:06,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:06,606 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-12 00:11:06,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-12 00:11:06,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:11:06,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-12 00:11:06,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:06,818 INFO L85 PathProgramCache]: Analyzing trace with hash 85466, now seen corresponding path program 1 times [2023-11-12 00:11:06,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:06,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [361100206] [2023-11-12 00:11:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:06,819 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 [2023-11-12 00:11:06,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:06,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:11:06,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:06,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:06,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:11:06,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:06,998 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 [2023-11-12 00:11:07,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:07,013 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:07,013 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:11:07,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [361100206] [2023-11-12 00:11:07,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [361100206] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:07,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:07,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:11:07,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521755471] [2023-11-12 00:11:07,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:07,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:07,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:11:07,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:07,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:07,017 INFO L87 Difference]: Start difference. First operand 1113 states and 1222 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) [2023-11-12 00:11:10,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:10,908 INFO L93 Difference]: Finished difference Result 1510 states and 1655 transitions. [2023-11-12 00:11:10,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:10,909 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 [2023-11-12 00:11:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:10,918 INFO L225 Difference]: With dead ends: 1510 [2023-11-12 00:11:10,918 INFO L226 Difference]: Without dead ends: 1510 [2023-11-12 00:11:10,919 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 [2023-11-12 00:11:10,920 INFO L413 NwaCegarLoop]: 947 mSDtfsCounter, 421 mSDsluCounter, 602 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1549 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:10,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1549 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 717 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2023-11-12 00:11:10,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2023-11-12 00:11:10,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 1322. [2023-11-12 00:11:10,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 785 states have (on average 2.0496815286624206) internal successors, (1609), 1302 states have internal predecessors, (1609), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:11:10,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1643 transitions. [2023-11-12 00:11:10,971 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1643 transitions. Word has length 3 [2023-11-12 00:11:10,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:10,971 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1643 transitions. [2023-11-12 00:11:10,972 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) [2023-11-12 00:11:10,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1643 transitions. [2023-11-12 00:11:10,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:11:10,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:10,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:10,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:11,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:11:11,190 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-12 00:11:11,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:11,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1307350193, now seen corresponding path program 1 times [2023-11-12 00:11:11,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:11,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590013633] [2023-11-12 00:11:11,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:11,192 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 [2023-11-12 00:11:11,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:11,202 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:11:11,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:11,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:11:11,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:11,422 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 [2023-11-12 00:11:11,432 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 [2023-11-12 00:11:11,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 00:11:11,512 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 [2023-11-12 00:11:11,535 INFO L322 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-12 00:11:11,535 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 [2023-11-12 00:11:11,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:11,566 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:11,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:11:11,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1590013633] [2023-11-12 00:11:11,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1590013633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:11,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:11,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:11,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002582031] [2023-11-12 00:11:11,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:11,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:11:11,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:11:11,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:11:11,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:11,569 INFO L87 Difference]: Start difference. First operand 1322 states and 1643 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2023-11-12 00:11:16,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:16,878 INFO L93 Difference]: Finished difference Result 2021 states and 2399 transitions. [2023-11-12 00:11:16,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:11:16,879 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 [2023-11-12 00:11:16,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:16,892 INFO L225 Difference]: With dead ends: 2021 [2023-11-12 00:11:16,892 INFO L226 Difference]: Without dead ends: 2021 [2023-11-12 00:11:16,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:16,901 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 1434 mSDsluCounter, 608 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 1036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:16,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 1265 Invalid, 1036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-12 00:11:16,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2023-11-12 00:11:16,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 1471. [2023-11-12 00:11:16,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 934 states have (on average 2.0299785867237685) internal successors, (1896), 1451 states have internal predecessors, (1896), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:11:16,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1930 transitions. [2023-11-12 00:11:16,971 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1930 transitions. Word has length 8 [2023-11-12 00:11:16,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:16,972 INFO L495 AbstractCegarLoop]: Abstraction has 1471 states and 1930 transitions. [2023-11-12 00:11:16,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2023-11-12 00:11:16,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1930 transitions. [2023-11-12 00:11:16,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:11:16,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:16,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:16,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:11:17,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:11:17,182 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-12 00:11:17,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:17,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1873150296, now seen corresponding path program 1 times [2023-11-12 00:11:17,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:17,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876637223] [2023-11-12 00:11:17,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:17,183 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:11:17,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:17,187 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:11:17,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:17,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 00:11:17,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:17,376 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 [2023-11-12 00:11:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:17,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:17,408 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:11:17,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876637223] [2023-11-12 00:11:17,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [876637223] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:17,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:17,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:17,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072650074] [2023-11-12 00:11:17,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:17,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:11:17,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:11:17,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:11:17,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:17,412 INFO L87 Difference]: Start difference. First operand 1471 states and 1930 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-12 00:11:22,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:22,069 INFO L93 Difference]: Finished difference Result 2464 states and 3146 transitions. [2023-11-12 00:11:22,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:11:22,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2023-11-12 00:11:22,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:22,084 INFO L225 Difference]: With dead ends: 2464 [2023-11-12 00:11:22,084 INFO L226 Difference]: Without dead ends: 2464 [2023-11-12 00:11:22,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:11:22,085 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 2161 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 1369 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2167 SdHoareTripleChecker+Valid, 2004 SdHoareTripleChecker+Invalid, 1426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:22,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2167 Valid, 2004 Invalid, 1426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1369 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-12 00:11:22,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2464 states. [2023-11-12 00:11:22,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2464 to 1426. [2023-11-12 00:11:22,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 934 states have (on average 1.9668094218415417) internal successors, (1837), 1406 states have internal predecessors, (1837), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:11:22,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1871 transitions. [2023-11-12 00:11:22,131 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1871 transitions. Word has length 9 [2023-11-12 00:11:22,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:22,132 INFO L495 AbstractCegarLoop]: Abstraction has 1426 states and 1871 transitions. [2023-11-12 00:11:22,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-12 00:11:22,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1871 transitions. [2023-11-12 00:11:22,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:11:22,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:22,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:22,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:22,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:11:22,345 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-12 00:11:22,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:22,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1873150295, now seen corresponding path program 1 times [2023-11-12 00:11:22,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:22,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052708862] [2023-11-12 00:11:22,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:22,346 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 [2023-11-12 00:11:22,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:22,347 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:11:22,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:22,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:22,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 00:11:22,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:22,524 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 [2023-11-12 00:11:22,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:22,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:22,581 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:11:22,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052708862] [2023-11-12 00:11:22,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052708862] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:22,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:22,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:22,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35965617] [2023-11-12 00:11:22,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:22,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:11:22,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:11:22,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:11:22,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:22,584 INFO L87 Difference]: Start difference. First operand 1426 states and 1871 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-12 00:11:27,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:27,761 INFO L93 Difference]: Finished difference Result 2073 states and 2716 transitions. [2023-11-12 00:11:27,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:11:27,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2023-11-12 00:11:27,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:27,774 INFO L225 Difference]: With dead ends: 2073 [2023-11-12 00:11:27,774 INFO L226 Difference]: Without dead ends: 2073 [2023-11-12 00:11:27,775 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:11:27,776 INFO L413 NwaCegarLoop]: 1207 mSDtfsCounter, 1390 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:27,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 2125 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1202 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-12 00:11:27,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2023-11-12 00:11:27,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 1416. [2023-11-12 00:11:27,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 934 states have (on average 1.9411134903640257) internal successors, (1813), 1396 states have internal predecessors, (1813), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:11:27,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1847 transitions. [2023-11-12 00:11:27,830 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1847 transitions. Word has length 9 [2023-11-12 00:11:27,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:27,831 INFO L495 AbstractCegarLoop]: Abstraction has 1416 states and 1847 transitions. [2023-11-12 00:11:27,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-12 00:11:27,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1847 transitions. [2023-11-12 00:11:27,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:11:27,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:27,832 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:27,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:28,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:11:28,053 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-12 00:11:28,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:28,053 INFO L85 PathProgramCache]: Analyzing trace with hash 910543524, now seen corresponding path program 1 times [2023-11-12 00:11:28,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:28,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257275763] [2023-11-12 00:11:28,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:28,054 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 [2023-11-12 00:11:28,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:28,055 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:11:28,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:28,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:28,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-12 00:11:28,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:28,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:28,349 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:28,349 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:11:28,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257275763] [2023-11-12 00:11:28,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257275763] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:28,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:28,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:11:28,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605089480] [2023-11-12 00:11:28,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:28,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:11:28,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:11:28,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:11:28,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:28,353 INFO L87 Difference]: Start difference. First operand 1416 states and 1847 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:11:29,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:29,505 INFO L93 Difference]: Finished difference Result 1896 states and 2419 transitions. [2023-11-12 00:11:29,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:11:29,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-11-12 00:11:29,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:29,520 INFO L225 Difference]: With dead ends: 1896 [2023-11-12 00:11:29,520 INFO L226 Difference]: Without dead ends: 1896 [2023-11-12 00:11:29,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:11:29,522 INFO L413 NwaCegarLoop]: 1162 mSDtfsCounter, 550 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 3146 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:29,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 3146 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-12 00:11:29,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2023-11-12 00:11:29,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1672. [2023-11-12 00:11:29,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1190 states have (on average 1.9546218487394957) internal successors, (2326), 1652 states have internal predecessors, (2326), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:11:29,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2360 transitions. [2023-11-12 00:11:29,580 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2360 transitions. Word has length 13 [2023-11-12 00:11:29,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:29,584 INFO L495 AbstractCegarLoop]: Abstraction has 1672 states and 2360 transitions. [2023-11-12 00:11:29,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:11:29,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2360 transitions. [2023-11-12 00:11:29,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:11:29,586 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:29,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:29,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:29,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:11:29,800 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr332REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-12 00:11:29,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:29,800 INFO L85 PathProgramCache]: Analyzing trace with hash 321620140, now seen corresponding path program 1 times [2023-11-12 00:11:29,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:29,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781564952] [2023-11-12 00:11:29,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:29,802 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 [2023-11-12 00:11:29,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:29,803 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:11:29,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:29,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 00:11:29,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:29,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:30,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:30,001 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:11:30,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781564952] [2023-11-12 00:11:30,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781564952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:30,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:30,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:30,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64725376] [2023-11-12 00:11:30,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:30,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:30,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:11:30,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:30,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:30,004 INFO L87 Difference]: Start difference. First operand 1672 states and 2360 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) [2023-11-12 00:11:30,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:30,046 INFO L93 Difference]: Finished difference Result 1576 states and 2188 transitions. [2023-11-12 00:11:30,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:30,047 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 [2023-11-12 00:11:30,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:30,058 INFO L225 Difference]: With dead ends: 1576 [2023-11-12 00:11:30,058 INFO L226 Difference]: Without dead ends: 1576 [2023-11-12 00:11:30,058 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 [2023-11-12 00:11:30,059 INFO L413 NwaCegarLoop]: 1024 mSDtfsCounter, 81 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1976 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 [2023-11-12 00:11:30,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1976 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:11:30,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1576 states. [2023-11-12 00:11:30,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1576 to 1576. [2023-11-12 00:11:30,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1576 states, 1118 states have (on average 1.926654740608229) internal successors, (2154), 1556 states have internal predecessors, (2154), 19 states have call successors, (19), 5 states have call predecessors, (19), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-12 00:11:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1576 states to 1576 states and 2188 transitions. [2023-11-12 00:11:30,116 INFO L78 Accepts]: Start accepts. Automaton has 1576 states and 2188 transitions. Word has length 13 [2023-11-12 00:11:30,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:30,116 INFO L495 AbstractCegarLoop]: Abstraction has 1576 states and 2188 transitions. [2023-11-12 00:11:30,116 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) [2023-11-12 00:11:30,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1576 states and 2188 transitions. [2023-11-12 00:11:30,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-12 00:11:30,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:30,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:30,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:30,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:11:30,334 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-12 00:11:30,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:30,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1113378045, now seen corresponding path program 1 times [2023-11-12 00:11:30,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:30,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355695622] [2023-11-12 00:11:30,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:30,335 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 [2023-11-12 00:11:30,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:30,336 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:11:30,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:30,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 00:11:30,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:30,562 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 00:11:30,563 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 00:11:30,564 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-12 00:11:30,570 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 [2023-11-12 00:11:30,650 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 00:11:30,651 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 [2023-11-12 00:11:30,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:30,669 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:30,669 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:11:30,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355695622] [2023-11-12 00:11:30,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355695622] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:30,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:30,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:11:30,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753164799] [2023-11-12 00:11:30,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:30,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:11:30,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:11:30,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:11:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:30,672 INFO L87 Difference]: Start difference. First operand 1576 states and 2188 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:11:32,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:32,863 INFO L93 Difference]: Finished difference Result 1570 states and 1930 transitions. [2023-11-12 00:11:32,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:11:32,866 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-11-12 00:11:32,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:32,875 INFO L225 Difference]: With dead ends: 1570 [2023-11-12 00:11:32,875 INFO L226 Difference]: Without dead ends: 1570 [2023-11-12 00:11:32,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:11:32,876 INFO L413 NwaCegarLoop]: 1017 mSDtfsCounter, 317 mSDsluCounter, 1890 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 2907 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:11:32,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 2907 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-12 00:11:32,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1570 states. [2023-11-12 00:11:32,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1570 to 1245. [2023-11-12 00:11:32,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 789 states have (on average 1.9125475285171103) internal successors, (1509), 1227 states have internal predecessors, (1509), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 00:11:32,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1539 transitions. [2023-11-12 00:11:32,910 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1539 transitions. Word has length 16 [2023-11-12 00:11:32,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:32,911 INFO L495 AbstractCegarLoop]: Abstraction has 1245 states and 1539 transitions. [2023-11-12 00:11:32,911 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:11:32,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1539 transitions. [2023-11-12 00:11:32,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:11:32,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:32,912 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:11:32,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:33,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:11:33,126 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-12 00:11:33,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:33,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1057218028, now seen corresponding path program 1 times [2023-11-12 00:11:33,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:33,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1977292309] [2023-11-12 00:11:33,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:33,128 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 [2023-11-12 00:11:33,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:33,130 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:11:33,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:33,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:33,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 00:11:33,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:33,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:33,419 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:11:33,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1977292309] [2023-11-12 00:11:33,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1977292309] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:33,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:33,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:11:33,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41799560] [2023-11-12 00:11:33,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:33,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:11:33,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:11:33,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:11:33,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:33,423 INFO L87 Difference]: Start difference. First operand 1245 states and 1539 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-12 00:11:33,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:33,471 INFO L93 Difference]: Finished difference Result 1185 states and 1453 transitions. [2023-11-12 00:11:33,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:11:33,472 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2023-11-12 00:11:33,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:33,479 INFO L225 Difference]: With dead ends: 1185 [2023-11-12 00:11:33,480 INFO L226 Difference]: Without dead ends: 1185 [2023-11-12 00:11:33,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:11:33,481 INFO L413 NwaCegarLoop]: 981 mSDtfsCounter, 81 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1890 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 [2023-11-12 00:11:33,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 1890 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:11:33,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2023-11-12 00:11:33,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1185. [2023-11-12 00:11:33,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1185 states, 753 states have (on average 1.8897742363877823) internal successors, (1423), 1167 states have internal predecessors, (1423), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 00:11:33,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1185 states to 1185 states and 1453 transitions. [2023-11-12 00:11:33,539 INFO L78 Accepts]: Start accepts. Automaton has 1185 states and 1453 transitions. Word has length 19 [2023-11-12 00:11:33,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:33,540 INFO L495 AbstractCegarLoop]: Abstraction has 1185 states and 1453 transitions. [2023-11-12 00:11:33,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-12 00:11:33,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1185 states and 1453 transitions. [2023-11-12 00:11:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 00:11:33,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:33,541 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] [2023-11-12 00:11:33,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:33,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:11:33,757 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, alt_mallocErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, alt_mallocErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 525 more)] === [2023-11-12 00:11:33,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:11:33,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1920722190, now seen corresponding path program 1 times [2023-11-12 00:11:33,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:11:33,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1659711702] [2023-11-12 00:11:33,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:11:33,759 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 [2023-11-12 00:11:33,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:11:33,760 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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) [2023-11-12 00:11:33,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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 [2023-11-12 00:11:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:11:34,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 00:11:34,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:11:34,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:11:34,054 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:11:34,055 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:11:34,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1659711702] [2023-11-12 00:11:34,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1659711702] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:11:34,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:11:34,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:11:34,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736257052] [2023-11-12 00:11:34,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:11:34,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:11:34,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:11:34,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:11:34,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:11:34,058 INFO L87 Difference]: Start difference. First operand 1185 states and 1453 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-11-12 00:11:34,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:11:34,166 INFO L93 Difference]: Finished difference Result 1157 states and 1397 transitions. [2023-11-12 00:11:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:11:34,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 21 [2023-11-12 00:11:34,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:11:34,175 INFO L225 Difference]: With dead ends: 1157 [2023-11-12 00:11:34,175 INFO L226 Difference]: Without dead ends: 1157 [2023-11-12 00:11:34,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:11:34,177 INFO L413 NwaCegarLoop]: 936 mSDtfsCounter, 62 mSDsluCounter, 1838 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 2774 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 [2023-11-12 00:11:34,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 2774 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:11:34,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2023-11-12 00:11:34,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1155. [2023-11-12 00:11:34,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 737 states have (on average 1.852103120759837) internal successors, (1365), 1137 states have internal predecessors, (1365), 17 states have call successors, (17), 5 states have call predecessors, (17), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 00:11:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1395 transitions. [2023-11-12 00:11:34,208 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1395 transitions. Word has length 21 [2023-11-12 00:11:34,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:11:34,208 INFO L495 AbstractCegarLoop]: Abstraction has 1155 states and 1395 transitions. [2023-11-12 00:11:34,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2023-11-12 00:11:34,209 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1395 transitions. [2023-11-12 00:11:34,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 00:11:34,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:11:34,211 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] [2023-11-12 00:11:34,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3196f4e-fc3e-47e1-8af4-9858aa15b4bb/bin/utaipan-verify-NcY6lQBIFX/mathsat -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