./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 9bd2c7ff 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_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:13:57,676 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:13:57,801 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2023-11-19 04:13:57,808 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:13:57,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:13:57,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:13:57,837 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:13:57,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:13:57,839 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:13:57,840 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:13:57,840 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:13:57,841 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:13:57,842 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:13:57,842 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:13:57,843 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:13:57,844 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:13:57,844 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:13:57,845 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:13:57,845 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:13:57,846 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:13:57,846 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:13:57,847 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:13:57,848 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:13:57,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:13:57,849 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:13:57,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:13:57,850 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:13:57,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:13:57,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:13:57,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:13:57,852 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:13:57,863 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:13:57,863 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:13:57,863 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:13:57,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:13:57,864 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:13:57,864 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:13:57,865 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:13:57,865 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:13:57,865 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:13:57,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:13:57,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:13:57,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:13:57,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:13:57,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:13:57,867 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:13:57,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:13:57,868 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:13:57,868 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:13:57,868 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_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2023-11-19 04:13:58,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:13:58,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:13:58,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:13:58,213 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:13:58,214 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:13:58,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2023-11-19 04:14:01,471 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:14:01,861 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:14:01,862 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2023-11-19 04:14:01,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/data/1169913d1/2ad885d2e069426ab607afd110a9b2e9/FLAG6014142eb [2023-11-19 04:14:01,907 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/data/1169913d1/2ad885d2e069426ab607afd110a9b2e9 [2023-11-19 04:14:01,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:14:01,918 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:14:01,919 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:01,919 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:14:01,925 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:14:01,926 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:01" (1/1) ... [2023-11-19 04:14:01,927 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bbb7225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:01, skipping insertion in model container [2023-11-19 04:14:01,927 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:01" (1/1) ... [2023-11-19 04:14:02,005 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:14:02,514 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 04:14:02,516 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 04:14:02,517 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-19 04:14:02,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:02,571 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-19 04:14:02,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@cd968f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:02, skipping insertion in model container [2023-11-19 04:14:02,572 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:02,573 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-19 04:14:02,575 INFO L158 Benchmark]: Toolchain (without parser) took 655.86ms. Allocated memory is still 176.2MB. Free memory was 127.0MB in the beginning and 111.7MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 04:14:02,576 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 176.2MB. Free memory is still 144.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:14:02,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.24ms. Allocated memory is still 176.2MB. Free memory was 126.4MB in the beginning and 111.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:14:02,578 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 176.2MB. Free memory is still 144.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 653.24ms. Allocated memory is still 176.2MB. Free memory was 126.4MB in the beginning and 111.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 860]: 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_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:14:05,221 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:14:05,375 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-MemCleanup-32bit-Taipan_Bitvector.epf [2023-11-19 04:14:05,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:14:05,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:14:05,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:14:05,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:14:05,431 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:14:05,431 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:14:05,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:14:05,437 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:14:05,437 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:14:05,438 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:14:05,439 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:14:05,440 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:14:05,440 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:14:05,441 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:14:05,441 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:14:05,442 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:14:05,443 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:14:05,444 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:14:05,444 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:14:05,445 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:14:05,445 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:14:05,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:14:05,446 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:14:05,446 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:14:05,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:14:05,447 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:14:05,447 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:14:05,449 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:14:05,449 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:14:05,449 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:14:05,449 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:14:05,450 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:14:05,450 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:14:05,451 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:14:05,451 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:14:05,451 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:14:05,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:05,452 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:14:05,452 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:14:05,452 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:14:05,452 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:14:05,453 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:14:05,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:14:05,453 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_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2023-11-19 04:14:05,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:14:05,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:14:05,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:14:05,909 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:14:05,910 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:14:05,912 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2023-11-19 04:14:08,872 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:14:09,238 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:14:09,251 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2023-11-19 04:14:09,282 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/data/539d2b8a1/6d69d1db8f5845cca2cdd50c71383bef/FLAGbd532243d [2023-11-19 04:14:09,306 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/data/539d2b8a1/6d69d1db8f5845cca2cdd50c71383bef [2023-11-19 04:14:09,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:14:09,314 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:14:09,317 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:09,318 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:14:09,323 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:14:09,324 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:09" (1/1) ... [2023-11-19 04:14:09,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e89d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:09, skipping insertion in model container [2023-11-19 04:14:09,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:09" (1/1) ... [2023-11-19 04:14:09,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:14:10,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:10,054 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-19 04:14:10,066 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:14:10,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:10,119 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:14:10,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:10,256 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:14:10,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10 WrapperNode [2023-11-19 04:14:10,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:10,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:10,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:14:10,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:14:10,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (1/1) ... [2023-11-19 04:14:10,291 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (1/1) ... [2023-11-19 04:14:10,320 INFO L138 Inliner]: procedures = 235, calls = 76, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 121 [2023-11-19 04:14:10,320 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:10,321 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:14:10,321 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:14:10,321 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:14:10,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (1/1) ... [2023-11-19 04:14:10,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (1/1) ... [2023-11-19 04:14:10,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (1/1) ... [2023-11-19 04:14:10,339 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (1/1) ... [2023-11-19 04:14:10,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (1/1) ... [2023-11-19 04:14:10,361 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (1/1) ... [2023-11-19 04:14:10,365 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (1/1) ... [2023-11-19 04:14:10,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (1/1) ... [2023-11-19 04:14:10,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:14:10,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:14:10,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:14:10,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:14:10,376 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (1/1) ... [2023-11-19 04:14:10,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:10,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:14:10,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:14:10,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:14:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:14:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:14:10,457 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2023-11-19 04:14:10,457 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2023-11-19 04:14:10,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:14:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:14:10,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:14:10,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:14:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2023-11-19 04:14:10,462 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2023-11-19 04:14:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-11-19 04:14:10,462 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-11-19 04:14:10,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:14:10,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:14:10,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:14:10,465 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-19 04:14:10,466 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-19 04:14:10,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:14:10,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:14:10,685 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:14:10,688 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:14:11,399 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:14:11,409 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:14:11,409 INFO L302 CfgBuilder]: Removed 41 assume(true) statements. [2023-11-19 04:14:11,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:11 BoogieIcfgContainer [2023-11-19 04:14:11,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:14:11,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:14:11,418 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:14:11,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:14:11,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:14:09" (1/3) ... [2023-11-19 04:14:11,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf9646e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:11, skipping insertion in model container [2023-11-19 04:14:11,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:10" (2/3) ... [2023-11-19 04:14:11,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf9646e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:11, skipping insertion in model container [2023-11-19 04:14:11,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:11" (3/3) ... [2023-11-19 04:14:11,426 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2023-11-19 04:14:11,449 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:14:11,450 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:14:11,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:14:11,514 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;@63519d97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:14:11,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:14:11,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 92 states have (on average 1.7391304347826086) internal successors, (160), 112 states have internal predecessors, (160), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-19 04:14:11,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:14:11,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:11,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:14:11,532 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:14:11,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:11,538 INFO L85 PathProgramCache]: Analyzing trace with hash 949299624, now seen corresponding path program 1 times [2023-11-19 04:14:11,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:14:11,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1428448695] [2023-11-19 04:14:11,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:11,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:11,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:14:11,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:14:11,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-19 04:14:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:11,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:14:11,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:14:11,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:14:11,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:14:11,733 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:14:11,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1428448695] [2023-11-19 04:14:11,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1428448695] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:11,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:11,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:14:11,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705611854] [2023-11-19 04:14:11,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:11,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:14:11,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:14:11,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:14:11,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:14:11,778 INFO L87 Difference]: Start difference. First operand has 122 states, 92 states have (on average 1.7391304347826086) internal successors, (160), 112 states have internal predecessors, (160), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2023-11-19 04:14:11,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:11,809 INFO L93 Difference]: Finished difference Result 117 states and 139 transitions. [2023-11-19 04:14:11,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:14:11,811 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 11 [2023-11-19 04:14:11,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:11,819 INFO L225 Difference]: With dead ends: 117 [2023-11-19 04:14:11,820 INFO L226 Difference]: Without dead ends: 115 [2023-11-19 04:14:11,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:14:11,826 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:11,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:14:11,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-11-19 04:14:11,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-11-19 04:14:11,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 89 states have (on average 1.2359550561797752) internal successors, (110), 104 states have internal predecessors, (110), 21 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 04:14:11,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 137 transitions. [2023-11-19 04:14:11,882 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 137 transitions. Word has length 11 [2023-11-19 04:14:11,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:11,883 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 137 transitions. [2023-11-19 04:14:11,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2023-11-19 04:14:11,883 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 137 transitions. [2023-11-19 04:14:11,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 04:14:11,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:11,886 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] [2023-11-19 04:14:11,898 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:14:12,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:12,089 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:14:12,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:12,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1891587604, now seen corresponding path program 1 times [2023-11-19 04:14:12,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:14:12,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753758443] [2023-11-19 04:14:12,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:12,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:12,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:14:12,095 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:14:12,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-19 04:14:12,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:12,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 04:14:12,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:14:12,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:14:12,380 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:14:12,380 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:14:12,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753758443] [2023-11-19 04:14:12,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753758443] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:12,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:12,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 04:14:12,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079477834] [2023-11-19 04:14:12,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:12,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:14:12,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:14:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:14:12,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:14:12,385 INFO L87 Difference]: Start difference. First operand 115 states and 137 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:14:12,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:12,569 INFO L93 Difference]: Finished difference Result 114 states and 135 transitions. [2023-11-19 04:14:12,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 04:14:12,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-19 04:14:12,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:12,573 INFO L225 Difference]: With dead ends: 114 [2023-11-19 04:14:12,573 INFO L226 Difference]: Without dead ends: 114 [2023-11-19 04:14:12,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 04:14:12,576 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 179 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:12,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 264 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:14:12,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-11-19 04:14:12,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-11-19 04:14:12,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 89 states have (on average 1.2247191011235956) internal successors, (109), 103 states have internal predecessors, (109), 20 states have call successors, (20), 4 states have call predecessors, (20), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-19 04:14:12,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 135 transitions. [2023-11-19 04:14:12,595 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 135 transitions. Word has length 23 [2023-11-19 04:14:12,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:12,596 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 135 transitions. [2023-11-19 04:14:12,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:14:12,597 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 135 transitions. [2023-11-19 04:14:12,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 04:14:12,598 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:12,598 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] [2023-11-19 04:14:12,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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)] Ended with exit code 0 [2023-11-19 04:14:12,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:12,802 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:14:12,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:12,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1913163680, now seen corresponding path program 1 times [2023-11-19 04:14:12,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:14:12,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347928396] [2023-11-19 04:14:12,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:12,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:12,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:14:12,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:14:12,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-19 04:14:13,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:13,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 04:14:13,093 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:14:13,203 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-19 04:14:13,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-19 04:14:13,302 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2023-11-19 04:14:13,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 59 treesize of output 51 [2023-11-19 04:14:13,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 42 [2023-11-19 04:14:13,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 52 [2023-11-19 04:14:19,684 WARN L293 SmtUtils]: Spent 6.26s on a formula simplification. DAG size of input: 19 DAG size of output: 8 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-19 04:14:19,685 INFO L349 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2023-11-19 04:14:19,685 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 26 [2023-11-19 04:14:19,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 42 [2023-11-19 04:14:24,265 INFO L349 Elim1Store]: treesize reduction 43, result has 17.3 percent of original size [2023-11-19 04:14:24,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 26 [2023-11-19 04:14:24,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 42 [2023-11-19 04:14:29,373 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 19 DAG size of output: 11 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-11-19 04:14:29,374 INFO L349 Elim1Store]: treesize reduction 39, result has 25.0 percent of original size [2023-11-19 04:14:29,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 30 [2023-11-19 04:14:29,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 52 [2023-11-19 04:14:29,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 74 [2023-11-19 04:14:29,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 47 [2023-11-19 04:14:29,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 62 treesize of output 54 [2023-11-19 04:14:31,784 WARN L876 $PredicateComparison]: unable to prove that (and (= (_ bv3 32) |c_~#gl_list~0.base|) (let ((.cse0 (select |c_#memory_$Pointer$.base| (_ bv3 32)))) (or (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32)) (v_DerPreprocessor_8 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_7 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= (_ bv3 32) (select v_DerPreprocessor_8 (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|))) (= (select v_DerPreprocessor_8 |list_add___list_add_~new#1.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (= (store (select (store (store |c_#memory_$Pointer$.base| (_ bv3 32) v_DerPreprocessor_7) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_8) (_ bv3 32)) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) .cse0))) (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32)) (v_DerPreprocessor_9 (Array (_ BitVec 32) (_ BitVec 32))) (|list_add___list_add_~next#1.offset| (_ BitVec 32)) (|list_add___list_add_~next#1.base| (_ BitVec 32)) (v_DerPreprocessor_10 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_8 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= .cse0 (store (select (store (store (store |c_#memory_$Pointer$.base| (_ bv3 32) v_DerPreprocessor_10) |list_add___list_add_~next#1.base| v_arrayElimArr_8) |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_9) (_ bv3 32) v_DerPreprocessor_10) |list_add___list_add_~next#1.base| v_arrayElimArr_8) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |list_add___list_add_~new#1.offset| |list_add___list_add_~next#1.base|) (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|) (_ bv3 32))) (_ bv3 32)) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|)) (= (select v_arrayElimArr_8 (bvadd |list_add___list_add_~next#1.offset| (_ bv4 32))) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (not (= |c_ULTIMATE.start_gl_insert_~node~1#1.base| |list_add___list_add_~next#1.base|)) (not (= (_ bv3 32) |list_add___list_add_~next#1.base|)))) (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32)) (|list_add___list_add_~next#1.offset| (_ BitVec 32)) (v_arrayElimArr_2 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_1 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= .cse0 (store (select (store (store |c_#memory_$Pointer$.base| (_ bv3 32) v_arrayElimArr_2) |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_1) (_ bv3 32) v_arrayElimArr_2) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |list_add___list_add_~new#1.offset| (_ bv3 32)) (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|) (_ bv3 32))) (_ bv3 32)) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|)) (= (select v_arrayElimArr_2 (bvadd |list_add___list_add_~next#1.offset| (_ bv4 32))) |c_ULTIMATE.start_gl_insert_~node~1#1.base|))))) (not (= (_ bv3 32) |c_ULTIMATE.start_gl_insert_~node~1#1.base|))) is different from true [2023-11-19 04:14:31,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:31,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 78 [2023-11-19 04:14:31,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 62 treesize of output 65 [2023-11-19 04:14:31,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 67 [2023-11-19 04:14:31,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 67 treesize of output 70 [2023-11-19 04:14:31,890 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:14:31,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 56 [2023-11-19 04:14:31,931 INFO L349 Elim1Store]: treesize reduction 17, result has 43.3 percent of original size [2023-11-19 04:14:31,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 68 [2023-11-19 04:14:32,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-11-19 04:14:32,037 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-11-19 04:14:32,057 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-11-19 04:14:32,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-19 04:14:32,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2023-11-19 04:14:32,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:14:32,560 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:14:32,561 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:14:32,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347928396] [2023-11-19 04:14:32,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347928396] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:32,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:32,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 04:14:32,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265694027] [2023-11-19 04:14:32,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:32,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 04:14:32,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:14:32,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 04:14:32,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=5, NotChecked=16, Total=110 [2023-11-19 04:14:32,564 INFO L87 Difference]: Start difference. First operand 114 states and 135 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:14:33,272 WARN L876 $PredicateComparison]: unable to prove that (and (= (bvadd (select |c_#valid| (_ bv3 32)) (_ bv1 1)) (_ bv0 1)) (= (_ bv3 32) |c_~#gl_list~0.base|) (let ((.cse0 (= |c_list_add_#in~new#1.base| |c_list_add_#in~head#1.base|))) (let ((.cse2 (not .cse0)) (.cse3 (select |c_#memory_$Pointer$.base| |c_list_add_#in~head#1.base|))) (or (and .cse0 (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32)) (|list_add___list_add_~next#1.offset| (_ BitVec 32)) (v_DerPreprocessor_5 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_6 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (store (store |c_#memory_$Pointer$.base| |c_list_add_#in~head#1.base| v_DerPreprocessor_5) |c_list_add_#in~new#1.base| v_DerPreprocessor_6) |c_list_add_#in~head#1.base|))) (and (= (select v_DerPreprocessor_6 |list_add___list_add_~new#1.offset|) |c_list_add_#in~new#1.base|) (= .cse1 v_DerPreprocessor_5) (= (select v_DerPreprocessor_6 (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|)) |c_list_add_#in~head#1.base|) (= (select |c_#memory_$Pointer$.base| |c_list_add_#in~new#1.base|) (store .cse1 |c_list_add_#in~head#1.offset| |c_list_add_#in~new#1.base|)) (= |c_list_add_#in~new#1.base| (select v_DerPreprocessor_6 (bvadd |list_add___list_add_~next#1.offset| (_ bv4 32)))))))) (and .cse2 (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32)) (|list_add___list_add_~next#1.offset| (_ BitVec 32)) (v_arrayElimArr_2 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_1 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= .cse3 (store (select (store (store |c_#memory_$Pointer$.base| |c_list_add_#in~head#1.base| v_arrayElimArr_2) |c_list_add_#in~new#1.base| (store (store (select (store (store |c_#memory_$Pointer$.base| |c_list_add_#in~new#1.base| v_DerPreprocessor_1) |c_list_add_#in~head#1.base| v_arrayElimArr_2) |c_list_add_#in~new#1.base|) |list_add___list_add_~new#1.offset| |c_list_add_#in~head#1.base|) (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|) |c_list_add_#in~head#1.base|)) |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset| |c_list_add_#in~new#1.base|)) (= |c_list_add_#in~new#1.base| (select v_arrayElimArr_2 (bvadd |list_add___list_add_~next#1.offset| (_ bv4 32))))))) (and (exists ((v_DerPreprocessor_12 (Array (_ BitVec 32) (_ BitVec 32))) (|list_add___list_add_~new#1.offset| (_ BitVec 32)) (|list_add___list_add_~next#1.offset| (_ BitVec 32)) (|list_add___list_add_~next#1.base| (_ BitVec 32)) (v_arrayElimArr_10 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= .cse3 (store (select (let ((.cse4 (store (store |c_#memory_$Pointer$.base| |c_list_add_#in~head#1.base| v_DerPreprocessor_12) |list_add___list_add_~next#1.base| v_arrayElimArr_10))) (store .cse4 |c_list_add_#in~new#1.base| (store (store (select .cse4 |c_list_add_#in~new#1.base|) |list_add___list_add_~new#1.offset| |list_add___list_add_~next#1.base|) (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|) |c_list_add_#in~head#1.base|))) |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset| |c_list_add_#in~new#1.base|)) (= (select v_arrayElimArr_10 (bvadd |list_add___list_add_~next#1.offset| (_ bv4 32))) |c_list_add_#in~new#1.base|) (not (= |c_list_add_#in~new#1.base| |list_add___list_add_~next#1.base|)))) .cse0) (and (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32)) (|list_add___list_add_~next#1.offset| (_ BitVec 32)) (v_DerPreprocessor_4 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_3 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (store (store |c_#memory_$Pointer$.base| |c_list_add_#in~head#1.base| v_DerPreprocessor_3) |c_list_add_#in~new#1.base| v_DerPreprocessor_4) |c_list_add_#in~head#1.base|))) (and (= (select v_DerPreprocessor_4 (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|)) |c_list_add_#in~head#1.base|) (= |c_list_add_#in~new#1.base| (select v_DerPreprocessor_4 (bvadd |list_add___list_add_~next#1.offset| (_ bv4 32)))) (= (select v_DerPreprocessor_4 |list_add___list_add_~new#1.offset|) |c_list_add_#in~head#1.base|) (= .cse5 v_DerPreprocessor_3) (= (store .cse5 |c_list_add_#in~head#1.offset| |c_list_add_#in~new#1.base|) .cse3)))) .cse0) (and (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32)) (v_DerPreprocessor_8 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_7 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= .cse3 (store (select (store (store |c_#memory_$Pointer$.base| |c_list_add_#in~head#1.base| v_DerPreprocessor_7) |c_list_add_#in~new#1.base| v_DerPreprocessor_8) |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset| |c_list_add_#in~new#1.base|)) (= |c_list_add_#in~new#1.base| (select v_DerPreprocessor_8 |list_add___list_add_~new#1.offset|)) (= (select v_DerPreprocessor_8 (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|)) |c_list_add_#in~head#1.base|))) .cse2) (and .cse2 (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32)) (v_DerPreprocessor_9 (Array (_ BitVec 32) (_ BitVec 32))) (|list_add___list_add_~next#1.offset| (_ BitVec 32)) (|list_add___list_add_~next#1.base| (_ BitVec 32)) (v_DerPreprocessor_10 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_8 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= |c_list_add_#in~new#1.base| (select v_arrayElimArr_8 (bvadd |list_add___list_add_~next#1.offset| (_ bv4 32)))) (not (= |list_add___list_add_~next#1.base| |c_list_add_#in~head#1.base|)) (not (= |c_list_add_#in~new#1.base| |list_add___list_add_~next#1.base|)) (= .cse3 (store (select (store (store (store |c_#memory_$Pointer$.base| |c_list_add_#in~head#1.base| v_DerPreprocessor_10) |list_add___list_add_~next#1.base| v_arrayElimArr_8) |c_list_add_#in~new#1.base| (store (store (select (store (store (store |c_#memory_$Pointer$.base| |c_list_add_#in~new#1.base| v_DerPreprocessor_9) |c_list_add_#in~head#1.base| v_DerPreprocessor_10) |list_add___list_add_~next#1.base| v_arrayElimArr_8) |c_list_add_#in~new#1.base|) |list_add___list_add_~new#1.offset| |list_add___list_add_~next#1.base|) (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|) |c_list_add_#in~head#1.base|)) |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset| |c_list_add_#in~new#1.base|))))))))) is different from true [2023-11-19 04:14:34,042 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.base| (_ bv3 32)))) (and (= (bvadd (select |c_#valid| (_ bv3 32)) (_ bv1 1)) (_ bv0 1)) (= (_ bv3 32) |c_~#gl_list~0.base|) (not (= (select .cse0 |c_~#gl_list~0.offset|) (_ bv3 32))) (or (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32)) (v_DerPreprocessor_8 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_7 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= (_ bv3 32) (select v_DerPreprocessor_8 (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|))) (= (select v_DerPreprocessor_8 |list_add___list_add_~new#1.offset|) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (= (store (select (store (store |c_#memory_$Pointer$.base| (_ bv3 32) v_DerPreprocessor_7) |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_8) (_ bv3 32)) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|) .cse0))) (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32)) (v_DerPreprocessor_9 (Array (_ BitVec 32) (_ BitVec 32))) (|list_add___list_add_~next#1.offset| (_ BitVec 32)) (|list_add___list_add_~next#1.base| (_ BitVec 32)) (v_DerPreprocessor_10 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimArr_8 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= .cse0 (store (select (store (store (store |c_#memory_$Pointer$.base| (_ bv3 32) v_DerPreprocessor_10) |list_add___list_add_~next#1.base| v_arrayElimArr_8) |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select (store (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_9) (_ bv3 32) v_DerPreprocessor_10) |list_add___list_add_~next#1.base| v_arrayElimArr_8) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |list_add___list_add_~new#1.offset| |list_add___list_add_~next#1.base|) (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|) (_ bv3 32))) (_ bv3 32)) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|)) (= (select v_arrayElimArr_8 (bvadd |list_add___list_add_~next#1.offset| (_ bv4 32))) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) (not (= |c_ULTIMATE.start_gl_insert_~node~1#1.base| |list_add___list_add_~next#1.base|)) (not (= (_ bv3 32) |list_add___list_add_~next#1.base|)))) (exists ((|list_add___list_add_~new#1.offset| (_ BitVec 32)) (|list_add___list_add_~next#1.offset| (_ BitVec 32)) (v_arrayElimArr_2 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_1 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= .cse0 (store (select (store (store |c_#memory_$Pointer$.base| (_ bv3 32) v_arrayElimArr_2) |c_ULTIMATE.start_gl_insert_~node~1#1.base| (store (store (select (store (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_gl_insert_~node~1#1.base| v_DerPreprocessor_1) (_ bv3 32) v_arrayElimArr_2) |c_ULTIMATE.start_gl_insert_~node~1#1.base|) |list_add___list_add_~new#1.offset| (_ bv3 32)) (bvadd (_ bv4 32) |list_add___list_add_~new#1.offset|) (_ bv3 32))) (_ bv3 32)) |c_~#gl_list~0.offset| |c_ULTIMATE.start_gl_insert_~node~1#1.base|)) (= (select v_arrayElimArr_2 (bvadd |list_add___list_add_~next#1.offset| (_ bv4 32))) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) (not (= (_ bv3 32) |c_ULTIMATE.start_gl_insert_~node~1#1.base|)))) is different from true [2023-11-19 04:14:42,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:42,240 INFO L93 Difference]: Finished difference Result 223 states and 264 transitions. [2023-11-19 04:14:42,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 04:14:42,241 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-11-19 04:14:42,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:42,244 INFO L225 Difference]: With dead ends: 223 [2023-11-19 04:14:42,244 INFO L226 Difference]: Without dead ends: 223 [2023-11-19 04:14:42,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=53, Invalid=130, Unknown=11, NotChecked=78, Total=272 [2023-11-19 04:14:42,246 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 304 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 19 mSolverCounterUnsat, 205 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 205 IncrementalHoareTripleChecker+Unknown, 278 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:42,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 567 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 421 Invalid, 205 Unknown, 278 Unchecked, 9.3s Time] [2023-11-19 04:14:42,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-19 04:14:42,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 195. [2023-11-19 04:14:42,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 163 states have (on average 1.2331288343558282) internal successors, (201), 178 states have internal predecessors, (201), 25 states have call successors, (25), 6 states have call predecessors, (25), 5 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 04:14:42,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 237 transitions. [2023-11-19 04:14:42,266 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 237 transitions. Word has length 26 [2023-11-19 04:14:42,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:42,267 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 237 transitions. [2023-11-19 04:14:42,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:14:42,268 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 237 transitions. [2023-11-19 04:14:42,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 04:14:42,269 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:42,269 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] [2023-11-19 04:14:42,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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 [2023-11-19 04:14:42,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:42,473 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:14:42,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:42,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1706864921, now seen corresponding path program 1 times [2023-11-19 04:14:42,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:14:42,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572022638] [2023-11-19 04:14:42,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:42,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:42,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:14:42,476 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:14:42,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-19 04:14:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:42,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-19 04:14:42,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:14:42,779 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-19 04:14:42,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-19 04:14:42,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 04:14:42,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 04:14:43,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 65 [2023-11-19 04:14:43,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 61 [2023-11-19 04:14:43,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 24 [2023-11-19 04:14:43,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2023-11-19 04:14:43,871 INFO L349 Elim1Store]: treesize reduction 27, result has 15.6 percent of original size [2023-11-19 04:14:43,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 173 treesize of output 120 [2023-11-19 04:14:43,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 18 [2023-11-19 04:14:44,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-19 04:14:44,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:14:44,329 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:14:44,330 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:14:44,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572022638] [2023-11-19 04:14:44,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572022638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:44,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:44,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 04:14:44,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362895662] [2023-11-19 04:14:44,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:44,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 04:14:44,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:14:44,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 04:14:44,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:14:44,332 INFO L87 Difference]: Start difference. First operand 195 states and 237 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:14:52,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:52,766 INFO L93 Difference]: Finished difference Result 224 states and 263 transitions. [2023-11-19 04:14:52,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 04:14:52,767 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-19 04:14:52,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:52,769 INFO L225 Difference]: With dead ends: 224 [2023-11-19 04:14:52,769 INFO L226 Difference]: Without dead ends: 224 [2023-11-19 04:14:52,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2023-11-19 04:14:52,771 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 232 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 32 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:52,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 437 Invalid, 982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 932 Invalid, 18 Unknown, 0 Unchecked, 8.0s Time] [2023-11-19 04:14:52,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2023-11-19 04:14:52,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 199. [2023-11-19 04:14:52,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 166 states have (on average 1.2228915662650603) internal successors, (203), 181 states have internal predecessors, (203), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-19 04:14:52,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 239 transitions. [2023-11-19 04:14:52,793 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 239 transitions. Word has length 29 [2023-11-19 04:14:52,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:52,793 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 239 transitions. [2023-11-19 04:14:52,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:14:52,794 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 239 transitions. [2023-11-19 04:14:52,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 04:14:52,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:52,795 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] [2023-11-19 04:14:52,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -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)] Ended with exit code 0 [2023-11-19 04:14:52,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:53,000 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-19 04:14:53,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:53,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1462457616, now seen corresponding path program 1 times [2023-11-19 04:14:53,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:14:53,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1308346421] [2023-11-19 04:14:53,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:53,001 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 04:14:53,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:14:53,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-19 04:14:53,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6939c425-4239-4e0d-a780-fbf1ea6102c9/bin/utaipan-verify-t7M7D8N6sZ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-19 04:14:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:53,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-19 04:14:53,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:14:53,273 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-19 04:14:53,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-19 04:14:53,373 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 04:14:53,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-19 04:14:54,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2023-11-19 04:14:54,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:54,641 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 19 [2023-11-19 04:14:54,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2023-11-19 04:14:54,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2023-11-19 04:14:54,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 74 [2023-11-19 04:14:54,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 11 [2023-11-19 04:14:55,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-19 04:14:55,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2023-11-19 04:14:55,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2023-11-19 04:14:55,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2023-11-19 04:14:55,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:14:55,848 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 04:14:55,849 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-19 04:14:55,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1308346421] [2023-11-19 04:14:55,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1308346421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:55,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:55,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-19 04:14:55,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744761028] [2023-11-19 04:14:55,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:55,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 04:14:55,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-19 04:14:55,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 04:14:55,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-19 04:14:55,851 INFO L87 Difference]: Start difference. First operand 199 states and 239 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 7 states have internal predecessors, (28), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)