./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:44:39,294 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:44:39,400 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2023-11-24 21:44:39,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:44:39,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:44:39,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:44:39,458 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:44:39,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:44:39,460 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:44:39,465 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:44:39,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:44:39,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:44:39,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:44:39,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:44:39,469 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:44:39,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:44:39,471 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:44:39,471 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:44:39,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:44:39,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:44:39,473 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:44:39,473 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:44:39,474 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:44:39,474 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:44:39,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:44:39,475 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:44:39,475 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:44:39,476 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:44:39,476 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:44:39,476 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:44:39,478 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:44:39,478 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:44:39,478 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:44:39,479 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:44:39,479 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:44:39,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:44:39,479 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:44:39,480 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:44:39,480 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 21:44:39,480 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 21:44:39,480 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:44:39,481 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:44:39,481 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:44:39,481 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:44:39,482 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2023-11-24 21:44:39,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:44:39,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:44:39,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:44:39,852 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:44:39,853 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:44:39,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2023-11-24 21:44:43,022 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:44:43,519 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:44:43,519 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2023-11-24 21:44:43,566 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/data/459ed5390/b95b7d8238f2407aa7684b27895302b8/FLAG8b0e017e8 [2023-11-24 21:44:43,599 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/data/459ed5390/b95b7d8238f2407aa7684b27895302b8 [2023-11-24 21:44:43,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:44:43,606 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:44:43,610 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:44:43,610 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:44:43,626 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:44:43,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:43" (1/1) ... [2023-11-24 21:44:43,628 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a1517dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:43, skipping insertion in model container [2023-11-24 21:44:43,628 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:43" (1/1) ... [2023-11-24 21:44:43,699 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:44:44,197 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-24 21:44:44,198 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-24 21:44:44,199 WARN L580 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2023-11-24 21:44:44,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:44:44,242 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) [2023-11-24 21:44:44,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@526420c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:44, skipping insertion in model container [2023-11-24 21:44:44,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:44:44,244 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-24 21:44:44,246 INFO L158 Benchmark]: Toolchain (without parser) took 638.79ms. Allocated memory is still 188.7MB. Free memory was 159.5MB in the beginning and 143.3MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 21:44:44,247 INFO L158 Benchmark]: CDTParser took 1.19ms. Allocated memory is still 130.0MB. Free memory was 95.2MB in the beginning and 95.1MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 21:44:44,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 633.98ms. Allocated memory is still 188.7MB. Free memory was 159.0MB in the beginning and 143.3MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 21:44:44,249 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.19ms. Allocated memory is still 130.0MB. Free memory was 95.2MB in the beginning and 95.1MB in the end (delta: 132.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 633.98ms. Allocated memory is still 188.7MB. Free memory was 159.0MB in the beginning and 143.3MB in the end (delta: 15.7MB). 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_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 21:44:46,818 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 21:44:46,950 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2023-11-24 21:44:46,972 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 21:44:46,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 21:44:47,027 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 21:44:47,029 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 21:44:47,029 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 21:44:47,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-24 21:44:47,036 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-24 21:44:47,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 21:44:47,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 21:44:47,039 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 21:44:47,041 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 21:44:47,041 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 21:44:47,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 21:44:47,043 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 21:44:47,044 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 21:44:47,044 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 21:44:47,046 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 21:44:47,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 21:44:47,047 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 21:44:47,048 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-24 21:44:47,048 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-24 21:44:47,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 21:44:47,050 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 21:44:47,050 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 21:44:47,051 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 21:44:47,051 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 21:44:47,052 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 21:44:47,054 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 21:44:47,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 21:44:47,055 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 21:44:47,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 21:44:47,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 21:44:47,056 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 21:44:47,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 21:44:47,058 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:44:47,058 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 21:44:47,059 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 21:44:47,059 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-24 21:44:47,059 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 21:44:47,060 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 21:44:47,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-24 21:44:47,061 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-24 21:44:47,061 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 21:44:47,062 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-24 21:44:47,062 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b13662719be51a1d3330a7f40f7706daa8c7b2d4044bc92f854095c09c7c129 [2023-11-24 21:44:47,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 21:44:47,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 21:44:47,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 21:44:47,581 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 21:44:47,581 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 21:44:47,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/../../sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2023-11-24 21:44:51,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 21:44:51,474 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 21:44:51,475 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/sv-benchmarks/c/heap-manipulation/bubble_sort_linux-2.i [2023-11-24 21:44:51,501 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/data/56e086768/a60327e97d1c42f8aa6b7f15cb002d4c/FLAGca8950661 [2023-11-24 21:44:51,521 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/data/56e086768/a60327e97d1c42f8aa6b7f15cb002d4c [2023-11-24 21:44:51,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 21:44:51,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 21:44:51,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 21:44:51,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 21:44:51,539 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 21:44:51,540 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:51" (1/1) ... [2023-11-24 21:44:51,541 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49253e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:51, skipping insertion in model container [2023-11-24 21:44:51,542 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 09:44:51" (1/1) ... [2023-11-24 21:44:51,626 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:44:52,372 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:44:52,391 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-24 21:44:52,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 21:44:52,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:44:52,504 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 21:44:52,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 21:44:52,683 INFO L206 MainTranslator]: Completed translation [2023-11-24 21:44:52,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52 WrapperNode [2023-11-24 21:44:52,684 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 21:44:52,685 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 21:44:52,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 21:44:52,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 21:44:52,695 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,732 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,763 INFO L138 Inliner]: procedures = 235, calls = 76, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 121 [2023-11-24 21:44:52,764 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 21:44:52,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 21:44:52,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 21:44:52,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 21:44:52,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,792 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,870 INFO L175 MemorySlicer]: Split 37 memory accesses to 2 slices as follows [2, 35]. 95 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2]. The 10 writes are split as follows [0, 10]. [2023-11-24 21:44:52,871 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,897 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,919 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,929 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,941 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,946 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 21:44:52,947 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 21:44:52,947 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 21:44:52,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 21:44:52,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (1/1) ... [2023-11-24 21:44:52,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-24 21:44:52,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/z3 [2023-11-24 21:44:52,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-24 21:44:52,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-24 21:44:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-24 21:44:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-24 21:44:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-24 21:44:53,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-24 21:44:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure inspect [2023-11-24 21:44:53,021 INFO L138 BoogieDeclarations]: Found implementation of procedure inspect [2023-11-24 21:44:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 21:44:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-24 21:44:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-24 21:44:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-24 21:44:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-24 21:44:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-24 21:44:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-24 21:44:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure val_from_node [2023-11-24 21:44:53,023 INFO L138 BoogieDeclarations]: Found implementation of procedure val_from_node [2023-11-24 21:44:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2023-11-24 21:44:53,023 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2023-11-24 21:44:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 21:44:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 21:44:53,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-24 21:44:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-24 21:44:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-24 21:44:53,024 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-24 21:44:53,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 21:44:53,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 21:44:53,276 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 21:44:53,280 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 21:44:54,011 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 21:44:54,077 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 21:44:54,077 INFO L309 CfgBuilder]: Removed 41 assume(true) statements. [2023-11-24 21:44:54,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:44:54 BoogieIcfgContainer [2023-11-24 21:44:54,078 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 21:44:54,097 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 21:44:54,097 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 21:44:54,101 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 21:44:54,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 09:44:51" (1/3) ... [2023-11-24 21:44:54,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5279e2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:44:54, skipping insertion in model container [2023-11-24 21:44:54,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 09:44:52" (2/3) ... [2023-11-24 21:44:54,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5279e2e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 09:44:54, skipping insertion in model container [2023-11-24 21:44:54,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 09:44:54" (3/3) ... [2023-11-24 21:44:54,108 INFO L112 eAbstractionObserver]: Analyzing ICFG bubble_sort_linux-2.i [2023-11-24 21:44:54,134 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 21:44:54,134 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-24 21:44:54,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 21:44:54,220 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48284c1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 21:44:54,220 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-24 21:44:54,225 INFO L276 IsEmpty]: Start isEmpty. Operand has 112 states, 82 states have (on average 1.829268292682927) internal successors, (150), 102 states have internal predecessors, (150), 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) [2023-11-24 21:44:54,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 21:44:54,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:44:54,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:44:54,236 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:44:54,242 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:44:54,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1676225936, now seen corresponding path program 1 times [2023-11-24 21:44:54,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:44:54,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [466004089] [2023-11-24 21:44:54,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:44:54,254 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 [2023-11-24 21:44:54,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:44:54,256 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:44:54,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:44:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:44:54,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 21:44:54,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:44:54,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:44:54,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:44:54,402 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:44:54,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [466004089] [2023-11-24 21:44:54,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [466004089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:44:54,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:44:54,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 21:44:54,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959568697] [2023-11-24 21:44:54,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:44:54,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 21:44:54,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:44:54,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 21:44:54,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:44:54,451 INFO L87 Difference]: Start difference. First operand has 112 states, 82 states have (on average 1.829268292682927) internal successors, (150), 102 states have internal predecessors, (150), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-24 21:44:54,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:44:54,571 INFO L93 Difference]: Finished difference Result 108 states and 130 transitions. [2023-11-24 21:44:54,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 21:44:54,574 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 10 [2023-11-24 21:44:54,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:44:54,584 INFO L225 Difference]: With dead ends: 108 [2023-11-24 21:44:54,584 INFO L226 Difference]: Without dead ends: 107 [2023-11-24 21:44:54,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 21:44:54,590 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 21:44:54,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 21:44:54,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-11-24 21:44:54,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2023-11-24 21:44:54,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 81 states have (on average 1.2592592592592593) internal successors, (102), 96 states have internal predecessors, (102), 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) [2023-11-24 21:44:54,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 129 transitions. [2023-11-24 21:44:54,643 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 129 transitions. Word has length 10 [2023-11-24 21:44:54,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:44:54,643 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 129 transitions. [2023-11-24 21:44:54,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2023-11-24 21:44:54,644 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 129 transitions. [2023-11-24 21:44:54,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-24 21:44:54,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:44:54,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 21:44:54,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:44:54,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:44:54,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:44:54,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:44:54,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1006543941, now seen corresponding path program 1 times [2023-11-24 21:44:54,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:44:54,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1935449409] [2023-11-24 21:44:54,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:44:54,852 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 [2023-11-24 21:44:54,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:44:54,853 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:44:54,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:44:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:44:55,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 21:44:55,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:44:55,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:44:55,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:44:55,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:44:55,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1935449409] [2023-11-24 21:44:55,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1935449409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:44:55,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:44:55,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-24 21:44:55,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764263283] [2023-11-24 21:44:55,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:44:55,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-24 21:44:55,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:44:55,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-24 21:44:55,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-24 21:44:55,128 INFO L87 Difference]: Start difference. First operand 107 states and 129 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-24 21:44:55,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:44:55,690 INFO L93 Difference]: Finished difference Result 106 states and 127 transitions. [2023-11-24 21:44:55,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-24 21:44:55,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 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 19 [2023-11-24 21:44:55,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:44:55,694 INFO L225 Difference]: With dead ends: 106 [2023-11-24 21:44:55,694 INFO L226 Difference]: Without dead ends: 106 [2023-11-24 21:44:55,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-24 21:44:55,696 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 174 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-24 21:44:55,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 223 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-24 21:44:55,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-11-24 21:44:55,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2023-11-24 21:44:55,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 95 states have internal predecessors, (101), 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) [2023-11-24 21:44:55,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 127 transitions. [2023-11-24 21:44:55,722 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 127 transitions. Word has length 19 [2023-11-24 21:44:55,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:44:55,725 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 127 transitions. [2023-11-24 21:44:55,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2023-11-24 21:44:55,725 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 127 transitions. [2023-11-24 21:44:55,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-24 21:44:55,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:44:55,728 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] [2023-11-24 21:44:55,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:44:55,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:44:55,932 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:44:55,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:44:55,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1444697969, now seen corresponding path program 1 times [2023-11-24 21:44:55,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:44:55,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480695368] [2023-11-24 21:44:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:44:55,936 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 [2023-11-24 21:44:55,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:44:55,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:44:55,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:44:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:44:56,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-24 21:44:56,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:44:56,242 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 21:44:56,247 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 [2023-11-24 21:44:56,894 INFO L349 Elim1Store]: treesize reduction 117, result has 35.4 percent of original size [2023-11-24 21:44:56,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 3 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 258 treesize of output 269 [2023-11-24 21:44:56,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 140 [2023-11-24 21:44:57,040 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 8 treesize of output 7 [2023-11-24 21:44:57,252 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 8 treesize of output 7 [2023-11-24 21:44:57,380 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 8 treesize of output 7 [2023-11-24 21:44:57,592 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:44:57,603 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:44:57,606 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:44:57,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 60 [2023-11-24 21:44:57,642 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 5 treesize of output 3 [2023-11-24 21:44:57,736 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:44:57,746 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-24 21:44:57,787 INFO L349 Elim1Store]: treesize reduction 25, result has 24.2 percent of original size [2023-11-24 21:44:57,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 125 treesize of output 109 [2023-11-24 21:44:57,929 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 5 treesize of output 3 [2023-11-24 21:44:58,092 INFO L349 Elim1Store]: treesize reduction 27, result has 38.6 percent of original size [2023-11-24 21:44:58,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 125 treesize of output 113 [2023-11-24 21:44:58,581 WARN L876 $PredicateComparison]: unable to prove that (and (let ((.cse0 (= |c_list_add_#in~new#1.base| |c_list_add_#in~head#1.base|)) (.cse4 (= |c_list_add_#in~new#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset|)))) (or (and .cse0 (or (exists ((v_DerPreprocessor_11 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_4 (_ BitVec 32)) (v_DerPreprocessor_10 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select |c_#memory_$Pointer$#1.base| v_arrayElimCell_4))) (let ((.cse2 (store (store (store |c_#memory_$Pointer$#1.base| v_arrayElimCell_4 v_DerPreprocessor_10) |c_list_add_#in~new#1.base| v_DerPreprocessor_11) |c_list_add_#in~head#1.base| (store .cse3 |c_list_add_#in~head#1.offset| |c_list_add_#in~new#1.base|)))) (let ((.cse1 (select .cse2 v_arrayElimCell_4))) (and (= .cse1 v_DerPreprocessor_10) (= v_DerPreprocessor_11 (select .cse2 |c_list_add_#in~new#1.base|)) (= .cse1 .cse3)))))) (exists ((v_DerPreprocessor_12 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_11 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= |c_list_add_#in~new#1.base| (select v_DerPreprocessor_12 |c_list_add_#in~head#1.offset|)) (= (select (store (store |c_#memory_$Pointer$#1.base| |c_list_add_#in~new#1.base| v_DerPreprocessor_11) |c_list_add_#in~head#1.base| v_DerPreprocessor_12) |c_list_add_#in~new#1.base|) v_DerPreprocessor_11)))) .cse4) (and (not .cse0) .cse4))) (= (_ bv3 32) |c_~#gl_list~0.base|)) is different from true [2023-11-24 21:44:58,705 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-24 21:44:58,705 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 26 [2023-11-24 21:44:58,845 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 [2023-11-24 21:44:58,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:44:58,880 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:44:58,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:44:58,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480695368] [2023-11-24 21:44:58,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [480695368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:44:58,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:44:58,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-24 21:44:58,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520867150] [2023-11-24 21:44:58,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:44:58,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 21:44:58,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:44:58,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 21:44:58,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=68, Unknown=1, NotChecked=16, Total=110 [2023-11-24 21:44:58,885 INFO L87 Difference]: Start difference. First operand 106 states and 127 transitions. Second operand has 11 states, 10 states have (on average 1.8) internal successors, (18), 7 states have internal predecessors, (18), 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) [2023-11-24 21:44:59,284 WARN L876 $PredicateComparison]: unable to prove that (and (= (bvadd (select |c_#valid| (_ bv3 32)) (_ bv1 1)) (_ bv0 1)) (let ((.cse0 (= |c_list_add_#in~new#1.base| |c_list_add_#in~head#1.base|)) (.cse4 (= |c_list_add_#in~new#1.base| (select (select |c_#memory_$Pointer$#1.base| |c_list_add_#in~head#1.base|) |c_list_add_#in~head#1.offset|)))) (or (and .cse0 (or (exists ((v_DerPreprocessor_11 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_4 (_ BitVec 32)) (v_DerPreprocessor_10 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select |c_#memory_$Pointer$#1.base| v_arrayElimCell_4))) (let ((.cse2 (store (store (store |c_#memory_$Pointer$#1.base| v_arrayElimCell_4 v_DerPreprocessor_10) |c_list_add_#in~new#1.base| v_DerPreprocessor_11) |c_list_add_#in~head#1.base| (store .cse3 |c_list_add_#in~head#1.offset| |c_list_add_#in~new#1.base|)))) (let ((.cse1 (select .cse2 v_arrayElimCell_4))) (and (= .cse1 v_DerPreprocessor_10) (= v_DerPreprocessor_11 (select .cse2 |c_list_add_#in~new#1.base|)) (= .cse1 .cse3)))))) (exists ((v_DerPreprocessor_12 (Array (_ BitVec 32) (_ BitVec 32))) (v_DerPreprocessor_11 (Array (_ BitVec 32) (_ BitVec 32)))) (and (= |c_list_add_#in~new#1.base| (select v_DerPreprocessor_12 |c_list_add_#in~head#1.offset|)) (= (select (store (store |c_#memory_$Pointer$#1.base| |c_list_add_#in~new#1.base| v_DerPreprocessor_11) |c_list_add_#in~head#1.base| v_DerPreprocessor_12) |c_list_add_#in~new#1.base|) v_DerPreprocessor_11)))) .cse4) (and (not .cse0) .cse4))) (= (_ bv3 32) |c_~#gl_list~0.base|)) is different from true [2023-11-24 21:45:00,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:00,504 INFO L93 Difference]: Finished difference Result 211 states and 251 transitions. [2023-11-24 21:45:00,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 21:45:00,505 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 7 states have internal predecessors, (18), 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 22 [2023-11-24 21:45:00,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:00,508 INFO L225 Difference]: With dead ends: 211 [2023-11-24 21:45:00,508 INFO L226 Difference]: Without dead ends: 211 [2023-11-24 21:45:00,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=135, Unknown=2, NotChecked=50, Total=240 [2023-11-24 21:45:00,510 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 388 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 273 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:00,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 490 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 400 Invalid, 0 Unknown, 273 Unchecked, 1.4s Time] [2023-11-24 21:45:00,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-11-24 21:45:00,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 185. [2023-11-24 21:45:00,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 152 states have (on average 1.25) internal successors, (190), 167 states have internal predecessors, (190), 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) [2023-11-24 21:45:00,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 226 transitions. [2023-11-24 21:45:00,550 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 226 transitions. Word has length 22 [2023-11-24 21:45:00,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:00,551 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 226 transitions. [2023-11-24 21:45:00,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.8) internal successors, (18), 7 states have internal predecessors, (18), 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) [2023-11-24 21:45:00,551 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 226 transitions. [2023-11-24 21:45:00,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 21:45:00,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:00,553 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] [2023-11-24 21:45:00,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:45:00,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:45:00,754 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:00,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:00,754 INFO L85 PathProgramCache]: Analyzing trace with hash -6386776, now seen corresponding path program 1 times [2023-11-24 21:45:00,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:00,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973175812] [2023-11-24 21:45:00,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:00,755 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 [2023-11-24 21:45:00,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:00,757 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:45:00,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:45:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:01,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-24 21:45:01,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:01,109 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 21:45:01,109 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 [2023-11-24 21:45:01,183 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 [2023-11-24 21:45:01,192 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 [2023-11-24 21:45:01,441 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 [2023-11-24 21:45:01,453 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 45 treesize of output 47 [2023-11-24 21:45:01,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 21:45:01,783 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 25 treesize of output 14 [2023-11-24 21:45:01,789 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 24 treesize of output 15 [2023-11-24 21:45:02,085 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 [2023-11-24 21:45:02,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:02,134 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:02,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:02,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973175812] [2023-11-24 21:45:02,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973175812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:02,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:02,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-24 21:45:02,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081323482] [2023-11-24 21:45:02,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:02,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 21:45:02,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:02,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 21:45:02,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=87, Unknown=3, NotChecked=0, Total=110 [2023-11-24 21:45:02,137 INFO L87 Difference]: Start difference. First operand 185 states and 226 transitions. Second operand has 11 states, 10 states have (on average 2.1) internal successors, (21), 7 states have internal predecessors, (21), 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) [2023-11-24 21:45:07,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 21:45:12,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 21:45:17,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-24 21:45:18,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:18,546 INFO L93 Difference]: Finished difference Result 210 states and 249 transitions. [2023-11-24 21:45:18,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 21:45:18,547 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 7 states have internal predecessors, (21), 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 25 [2023-11-24 21:45:18,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:18,551 INFO L225 Difference]: With dead ends: 210 [2023-11-24 21:45:18,551 INFO L226 Difference]: Without dead ends: 210 [2023-11-24 21:45:18,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=56, Invalid=208, Unknown=8, NotChecked=0, Total=272 [2023-11-24 21:45:18,553 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 227 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 34 mSolverCounterUnsat, 116 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 116 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:18,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 352 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 936 Invalid, 116 Unknown, 0 Unchecked, 15.9s Time] [2023-11-24 21:45:18,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2023-11-24 21:45:18,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 185. [2023-11-24 21:45:18,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 152 states have (on average 1.243421052631579) internal successors, (189), 167 states have internal predecessors, (189), 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) [2023-11-24 21:45:18,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 225 transitions. [2023-11-24 21:45:18,574 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 225 transitions. Word has length 25 [2023-11-24 21:45:18,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:18,575 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 225 transitions. [2023-11-24 21:45:18,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.1) internal successors, (21), 7 states have internal predecessors, (21), 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) [2023-11-24 21:45:18,575 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 225 transitions. [2023-11-24 21:45:18,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 21:45:18,576 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:18,577 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] [2023-11-24 21:45:18,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-24 21:45:18,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:45:18,782 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:18,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:18,783 INFO L85 PathProgramCache]: Analyzing trace with hash 447582721, now seen corresponding path program 1 times [2023-11-24 21:45:18,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:18,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [736281481] [2023-11-24 21:45:18,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:18,784 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 [2023-11-24 21:45:18,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:18,785 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:45:18,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:45:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:19,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-24 21:45:19,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:19,154 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 21:45:19,155 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 [2023-11-24 21:45:19,340 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 [2023-11-24 21:45:19,372 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 [2023-11-24 21:45:19,668 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 [2023-11-24 21:45:19,682 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 0 case distinctions, treesize of input 45 treesize of output 47 [2023-11-24 21:45:19,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 21:45:19,841 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 21 treesize of output 14 [2023-11-24 21:45:19,851 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 23 treesize of output 14 [2023-11-24 21:45:20,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:20,407 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:20,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:20,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [736281481] [2023-11-24 21:45:20,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [736281481] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:20,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:20,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-24 21:45:20,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862866273] [2023-11-24 21:45:20,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:20,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-24 21:45:20,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:20,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-24 21:45:20,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=88, Unknown=2, NotChecked=0, Total=110 [2023-11-24 21:45:20,411 INFO L87 Difference]: Start difference. First operand 185 states and 225 transitions. Second operand has 11 states, 10 states have (on average 2.4) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-11-24 21:45:29,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 21:45:29,696 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2023-11-24 21:45:29,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-24 21:45:29,696 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 7 states have internal predecessors, (24), 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 28 [2023-11-24 21:45:29,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 21:45:29,698 INFO L225 Difference]: With dead ends: 209 [2023-11-24 21:45:29,698 INFO L226 Difference]: Without dead ends: 209 [2023-11-24 21:45:29,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=54, Invalid=211, Unknown=7, NotChecked=0, Total=272 [2023-11-24 21:45:29,701 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 266 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 32 mSolverCounterUnsat, 127 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 127 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2023-11-24 21:45:29,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 381 Invalid, 1002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 843 Invalid, 127 Unknown, 0 Unchecked, 8.7s Time] [2023-11-24 21:45:29,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-24 21:45:29,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 185. [2023-11-24 21:45:29,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 152 states have (on average 1.236842105263158) internal successors, (188), 167 states have internal predecessors, (188), 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) [2023-11-24 21:45:29,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 224 transitions. [2023-11-24 21:45:29,733 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 224 transitions. Word has length 28 [2023-11-24 21:45:29,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 21:45:29,733 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 224 transitions. [2023-11-24 21:45:29,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.4) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-11-24 21:45:29,734 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 224 transitions. [2023-11-24 21:45:29,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 21:45:29,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 21:45:29,735 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] [2023-11-24 21:45:29,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-24 21:45:29,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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 [2023-11-24 21:45:29,943 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2023-11-24 21:45:29,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 21:45:29,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1704352211, now seen corresponding path program 1 times [2023-11-24 21:45:29,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-24 21:45:29,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91191007] [2023-11-24 21:45:29,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 21:45:29,944 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 [2023-11-24 21:45:29,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/mathsat [2023-11-24 21:45:29,945 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/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) [2023-11-24 21:45:29,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7cc2ace-de93-4fab-87a1-b360398a0e67/bin/uautomizer-verify-NlZe1sFDwI/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-24 21:45:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 21:45:30,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 40 conjunts are in the unsatisfiable core [2023-11-24 21:45:30,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 21:45:30,237 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-24 21:45:30,238 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 [2023-11-24 21:45:30,389 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 [2023-11-24 21:45:30,419 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 [2023-11-24 21:45:34,750 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 37 treesize of output 42 [2023-11-24 21:45:34,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 21:45:34,766 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 [2023-11-24 21:45:34,776 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 [2023-11-24 21:45:34,805 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 [2023-11-24 21:45:34,839 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 82 treesize of output 78 [2023-11-24 21:45:35,205 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 [2023-11-24 21:45:35,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-24 21:45:35,224 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 43 treesize of output 35 [2023-11-24 21:45:35,269 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 30 [2023-11-24 21:45:35,279 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 53 treesize of output 36 [2023-11-24 21:45:37,323 INFO L349 Elim1Store]: treesize reduction 22, result has 12.0 percent of original size [2023-11-24 21:45:37,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 26 [2023-11-24 21:45:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 21:45:37,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 21:45:37,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-24 21:45:37,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91191007] [2023-11-24 21:45:37,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91191007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 21:45:37,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 21:45:37,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-24 21:45:37,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241030753] [2023-11-24 21:45:37,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 21:45:37,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 21:45:37,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-24 21:45:37,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 21:45:37,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-24 21:45:37,560 INFO L87 Difference]: Start difference. First operand 185 states and 224 transitions. Second operand has 12 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 8 states have internal predecessors, (27), 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)