./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:09:16,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:09:16,246 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:09:16,251 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:09:16,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:09:16,285 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:09:16,286 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:09:16,286 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:09:16,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:09:16,289 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:09:16,289 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:09:16,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:09:16,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:09:16,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:09:16,291 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:09:16,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:09:16,294 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:09:16,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:09:16,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:09:16,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:09:16,295 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:09:16,295 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:09:16,296 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:09:16,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:09:16,296 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:09:16,297 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:09:16,297 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:09:16,297 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:09:16,297 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:09:16,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:09:16,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:09:16,299 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:09:16,299 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:09:16,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:09:16,300 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:09:16,300 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:09:16,300 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:09:16,301 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:09:16,301 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:09:16,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:09:16,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:09:16,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:09:16,302 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2024-10-11 19:09:16,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:09:16,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:09:16,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:09:16,638 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:09:16,639 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:09:16,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i [2024-10-11 19:09:18,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:09:18,394 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:09:18,395 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i [2024-10-11 19:09:18,422 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/25ae7c550/c666fd68e0a542089ed1156994375699/FLAGe9492a73c [2024-10-11 19:09:18,663 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/25ae7c550/c666fd68e0a542089ed1156994375699 [2024-10-11 19:09:18,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:09:18,667 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:09:18,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:09:18,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:09:18,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:09:18,679 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:09:18" (1/1) ... [2024-10-11 19:09:18,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e0601aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:18, skipping insertion in model container [2024-10-11 19:09:18,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:09:18" (1/1) ... [2024-10-11 19:09:18,734 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:09:19,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:09:19,332 ERROR L321 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) [2024-10-11 19:09:19,333 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@46fbf76c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:19, skipping insertion in model container [2024-10-11 19:09:19,333 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:09:19,334 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-11 19:09:19,336 INFO L158 Benchmark]: Toolchain (without parser) took 667.71ms. Allocated memory is still 159.4MB. Free memory was 114.1MB in the beginning and 91.5MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:09:19,336 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:09:19,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 665.64ms. Allocated memory is still 159.4MB. Free memory was 114.1MB in the beginning and 91.5MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:09:19,339 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 109.1MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 665.64ms. Allocated memory is still 159.4MB. Free memory was 114.1MB in the beginning and 91.5MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 740]: 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: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:09:21,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:09:21,382 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 19:09:21,387 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:09:21,388 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:09:21,420 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:09:21,422 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:09:21,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:09:21,423 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:09:21,423 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:09:21,424 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:09:21,424 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:09:21,424 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:09:21,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:09:21,427 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:09:21,428 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:09:21,428 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:09:21,428 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:09:21,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:09:21,429 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:09:21,429 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:09:21,433 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:09:21,433 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:09:21,434 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:09:21,434 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:09:21,434 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 19:09:21,434 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:09:21,434 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 19:09:21,434 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:09:21,435 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:09:21,435 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:09:21,435 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:09:21,435 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:09:21,436 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:09:21,436 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:09:21,436 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:09:21,437 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:09:21,438 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:09:21,438 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 19:09:21,438 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 19:09:21,439 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:09:21,439 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:09:21,439 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:09:21,439 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:09:21,440 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 19:09:21,440 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2024-10-11 19:09:21,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:09:21,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:09:21,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:09:21,807 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:09:21,808 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:09:21,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i [2024-10-11 19:09:23,318 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:09:23,661 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:09:23,662 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i [2024-10-11 19:09:23,686 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/408afb230/797ad569eb2b4d2eb66db0438b72d61e/FLAG16b9860a7 [2024-10-11 19:09:23,703 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/408afb230/797ad569eb2b4d2eb66db0438b72d61e [2024-10-11 19:09:23,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:09:23,707 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:09:23,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:09:23,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:09:23,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:09:23,715 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:09:23" (1/1) ... [2024-10-11 19:09:23,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b6309ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:23, skipping insertion in model container [2024-10-11 19:09:23,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:09:23" (1/1) ... [2024-10-11 19:09:23,782 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:09:24,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:09:24,346 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-11 19:09:24,357 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:09:24,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:09:24,456 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:09:24,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:09:24,588 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:09:24,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24 WrapperNode [2024-10-11 19:09:24,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:09:24,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:09:24,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:09:24,590 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:09:24,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,690 INFO L138 Inliner]: procedures = 179, calls = 377, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1311 [2024-10-11 19:09:24,690 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:09:24,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:09:24,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:09:24,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:09:24,703 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,716 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,848 INFO L175 MemorySlicer]: Split 357 memory accesses to 2 slices as follows [2, 355]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 90 writes are split as follows [0, 90]. [2024-10-11 19:09:24,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,852 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,903 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,938 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:09:24,940 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:09:24,940 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:09:24,940 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:09:24,941 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (1/1) ... [2024-10-11 19:09:24,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:09:24,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:09:24,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:09:24,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:09:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-11 19:09:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-11 19:09:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 19:09:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 19:09:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-11 19:09:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-11 19:09:25,026 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-11 19:09:25,026 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-11 19:09:25,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 19:09:25,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:09:25,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 19:09:25,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 19:09:25,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 19:09:25,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 19:09:25,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 19:09:25,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 19:09:25,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 19:09:25,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 19:09:25,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 19:09:25,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:09:25,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:09:25,294 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:09:25,296 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:09:25,300 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:09:25,369 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:09:30,189 INFO L? ?]: Removed 1538 outVars from TransFormulas that were not future-live. [2024-10-11 19:09:30,189 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:09:30,430 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:09:30,431 INFO L314 CfgBuilder]: Removed 69 assume(true) statements. [2024-10-11 19:09:30,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:09:30 BoogieIcfgContainer [2024-10-11 19:09:30,434 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:09:30,436 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:09:30,437 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:09:30,440 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:09:30,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:09:23" (1/3) ... [2024-10-11 19:09:30,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29534def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:09:30, skipping insertion in model container [2024-10-11 19:09:30,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:09:24" (2/3) ... [2024-10-11 19:09:30,442 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29534def and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:09:30, skipping insertion in model container [2024-10-11 19:09:30,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:09:30" (3/3) ... [2024-10-11 19:09:30,444 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test4-2.i [2024-10-11 19:09:30,462 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:09:30,462 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 733 error locations. [2024-10-11 19:09:30,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:09:30,549 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=None, 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;@3e9e7bed, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:09:30,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 733 error locations. [2024-10-11 19:09:30,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 1292 states, 557 states have (on average 2.556552962298025) internal successors, (1424), 1284 states have internal predecessors, (1424), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:09:30,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-11 19:09:30,564 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:30,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-11 19:09:30,565 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr732ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:30,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:30,570 INFO L85 PathProgramCache]: Analyzing trace with hash 2086279, now seen corresponding path program 1 times [2024-10-11 19:09:30,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:30,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [810078525] [2024-10-11 19:09:30,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:30,581 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 [2024-10-11 19:09:30,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:30,585 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:30,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:09:30,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:30,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:09:30,772 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:30,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:30,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:30,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:30,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [810078525] [2024-10-11 19:09:30,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [810078525] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:30,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:30,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:09:30,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534375687] [2024-10-11 19:09:30,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:30,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:09:30,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:30,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:09:30,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:09:30,842 INFO L87 Difference]: Start difference. First operand has 1292 states, 557 states have (on average 2.556552962298025) internal successors, (1424), 1284 states have internal predecessors, (1424), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:32,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:32,889 INFO L93 Difference]: Finished difference Result 1463 states and 1542 transitions. [2024-10-11 19:09:32,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:09:32,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-11 19:09:32,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:32,919 INFO L225 Difference]: With dead ends: 1463 [2024-10-11 19:09:32,920 INFO L226 Difference]: Without dead ends: 1460 [2024-10-11 19:09:32,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:09:32,924 INFO L432 NwaCegarLoop]: 1124 mSDtfsCounter, 200 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:32,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1743 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 19:09:32,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2024-10-11 19:09:33,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1287. [2024-10-11 19:09:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 563 states have (on average 2.403197158081705) internal successors, (1353), 1279 states have internal predecessors, (1353), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:09:33,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1365 transitions. [2024-10-11 19:09:33,054 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1365 transitions. Word has length 3 [2024-10-11 19:09:33,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:33,055 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1365 transitions. [2024-10-11 19:09:33,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:33,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1365 transitions. [2024-10-11 19:09:33,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 19:09:33,059 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:33,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 19:09:33,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-11 19:09:33,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:33,261 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:33,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:33,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2002971235, now seen corresponding path program 1 times [2024-10-11 19:09:33,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:33,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2016145714] [2024-10-11 19:09:33,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:33,262 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 [2024-10-11 19:09:33,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:33,264 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:33,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:09:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:33,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:09:33,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:33,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:09:33,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:33,448 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:33,448 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:33,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2016145714] [2024-10-11 19:09:33,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2016145714] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:33,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:33,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:09:33,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60773305] [2024-10-11 19:09:33,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:33,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:09:33,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:33,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:09:33,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:09:33,452 INFO L87 Difference]: Start difference. First operand 1287 states and 1365 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:35,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:35,633 INFO L93 Difference]: Finished difference Result 1193 states and 1269 transitions. [2024-10-11 19:09:35,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:09:35,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 19:09:35,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:35,638 INFO L225 Difference]: With dead ends: 1193 [2024-10-11 19:09:35,639 INFO L226 Difference]: Without dead ends: 1193 [2024-10-11 19:09:35,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:09:35,642 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 913 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:35,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 704 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 19:09:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-10-11 19:09:35,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1193. [2024-10-11 19:09:35,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 563 states have (on average 2.2326820603907636) internal successors, (1257), 1185 states have internal predecessors, (1257), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:09:35,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1269 transitions. [2024-10-11 19:09:35,678 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1269 transitions. Word has length 5 [2024-10-11 19:09:35,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:35,678 INFO L471 AbstractCegarLoop]: Abstraction has 1193 states and 1269 transitions. [2024-10-11 19:09:35,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:35,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1269 transitions. [2024-10-11 19:09:35,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 19:09:35,680 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:35,680 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 19:09:35,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:09:35,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:35,881 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:35,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:35,882 INFO L85 PathProgramCache]: Analyzing trace with hash 2002971236, now seen corresponding path program 1 times [2024-10-11 19:09:35,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:35,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [820326677] [2024-10-11 19:09:35,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:35,883 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 [2024-10-11 19:09:35,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:35,886 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:35,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:09:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:35,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:09:35,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:36,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:09:36,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:36,023 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:36,024 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:36,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [820326677] [2024-10-11 19:09:36,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [820326677] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:36,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:36,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:09:36,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043072966] [2024-10-11 19:09:36,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:36,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:09:36,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:36,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:09:36,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:09:36,026 INFO L87 Difference]: Start difference. First operand 1193 states and 1269 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:38,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:38,396 INFO L93 Difference]: Finished difference Result 1473 states and 1569 transitions. [2024-10-11 19:09:38,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:09:38,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 19:09:38,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:38,401 INFO L225 Difference]: With dead ends: 1473 [2024-10-11 19:09:38,401 INFO L226 Difference]: Without dead ends: 1473 [2024-10-11 19:09:38,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:09:38,402 INFO L432 NwaCegarLoop]: 920 mSDtfsCounter, 464 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:38,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1354 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 19:09:38,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2024-10-11 19:09:38,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1322. [2024-10-11 19:09:38,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 702 states have (on average 2.1923076923076925) internal successors, (1539), 1314 states have internal predecessors, (1539), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:09:38,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1551 transitions. [2024-10-11 19:09:38,429 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1551 transitions. Word has length 5 [2024-10-11 19:09:38,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:38,429 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1551 transitions. [2024-10-11 19:09:38,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:38,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1551 transitions. [2024-10-11 19:09:38,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 19:09:38,430 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:38,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 19:09:38,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:09:38,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:38,633 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:38,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:38,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1964225645, now seen corresponding path program 1 times [2024-10-11 19:09:38,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:38,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354357846] [2024-10-11 19:09:38,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:38,635 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 [2024-10-11 19:09:38,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:38,637 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:38,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:09:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:38,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:09:38,742 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:38,806 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:38,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:38,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354357846] [2024-10-11 19:09:38,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [354357846] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:38,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:38,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:09:38,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311435884] [2024-10-11 19:09:38,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:38,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:09:38,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:38,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:09:38,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:09:38,808 INFO L87 Difference]: Start difference. First operand 1322 states and 1551 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:40,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:40,503 INFO L93 Difference]: Finished difference Result 1999 states and 2354 transitions. [2024-10-11 19:09:40,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:09:40,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 19:09:40,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:40,510 INFO L225 Difference]: With dead ends: 1999 [2024-10-11 19:09:40,510 INFO L226 Difference]: Without dead ends: 1999 [2024-10-11 19:09:40,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:09:40,512 INFO L432 NwaCegarLoop]: 1092 mSDtfsCounter, 620 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:40,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 3057 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 19:09:40,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2024-10-11 19:09:40,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1700. [2024-10-11 19:09:40,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1080 states have (on average 2.162962962962963) internal successors, (2336), 1689 states have internal predecessors, (2336), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:09:40,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2354 transitions. [2024-10-11 19:09:40,550 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2354 transitions. Word has length 6 [2024-10-11 19:09:40,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:40,551 INFO L471 AbstractCegarLoop]: Abstraction has 1700 states and 2354 transitions. [2024-10-11 19:09:40,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:40,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2354 transitions. [2024-10-11 19:09:40,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-11 19:09:40,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:40,552 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:09:40,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-11 19:09:40,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:40,753 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr627REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:40,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:40,753 INFO L85 PathProgramCache]: Analyzing trace with hash 2130237079, now seen corresponding path program 1 times [2024-10-11 19:09:40,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:40,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801814962] [2024-10-11 19:09:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:40,754 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 [2024-10-11 19:09:40,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:40,756 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:40,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:09:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:40,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:09:40,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:40,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:40,941 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:40,941 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:40,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801814962] [2024-10-11 19:09:40,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801814962] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:40,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:40,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:09:40,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354223969] [2024-10-11 19:09:40,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:40,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:09:40,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:40,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:09:40,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:09:40,943 INFO L87 Difference]: Start difference. First operand 1700 states and 2354 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:41,779 INFO L93 Difference]: Finished difference Result 1789 states and 2307 transitions. [2024-10-11 19:09:41,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:09:41,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-11 19:09:41,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:41,784 INFO L225 Difference]: With dead ends: 1789 [2024-10-11 19:09:41,784 INFO L226 Difference]: Without dead ends: 1789 [2024-10-11 19:09:41,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:09:41,785 INFO L432 NwaCegarLoop]: 1144 mSDtfsCounter, 285 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:41,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 2175 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 19:09:41,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2024-10-11 19:09:41,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1589. [2024-10-11 19:09:41,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 969 states have (on average 2.1733746130030958) internal successors, (2106), 1578 states have internal predecessors, (2106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:09:41,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2124 transitions. [2024-10-11 19:09:41,814 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2124 transitions. Word has length 8 [2024-10-11 19:09:41,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:41,815 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 2124 transitions. [2024-10-11 19:09:41,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:41,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2124 transitions. [2024-10-11 19:09:41,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 19:09:41,816 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:41,816 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:09:41,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:09:42,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:42,019 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:42,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:42,019 INFO L85 PathProgramCache]: Analyzing trace with hash -463868595, now seen corresponding path program 1 times [2024-10-11 19:09:42,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:42,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113564562] [2024-10-11 19:09:42,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:42,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:42,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:42,023 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:42,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-10-11 19:09:42,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:42,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:09:42,181 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:42,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:42,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:42,195 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:42,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113564562] [2024-10-11 19:09:42,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113564562] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:42,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:42,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:09:42,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590284061] [2024-10-11 19:09:42,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:42,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:09:42,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:42,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:09:42,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:09:42,198 INFO L87 Difference]: Start difference. First operand 1589 states and 2124 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:43,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:43,001 INFO L93 Difference]: Finished difference Result 1535 states and 2044 transitions. [2024-10-11 19:09:43,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:09:43,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-11 19:09:43,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:43,007 INFO L225 Difference]: With dead ends: 1535 [2024-10-11 19:09:43,007 INFO L226 Difference]: Without dead ends: 1535 [2024-10-11 19:09:43,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:09:43,008 INFO L432 NwaCegarLoop]: 1046 mSDtfsCounter, 61 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:43,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2050 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 19:09:43,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-10-11 19:09:43,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1535. [2024-10-11 19:09:43,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 939 states have (on average 2.1576144834930777) internal successors, (2026), 1524 states have internal predecessors, (2026), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:09:43,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2044 transitions. [2024-10-11 19:09:43,041 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2044 transitions. Word has length 11 [2024-10-11 19:09:43,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:43,042 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 2044 transitions. [2024-10-11 19:09:43,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:43,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2044 transitions. [2024-10-11 19:09:43,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 19:09:43,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:43,043 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:09:43,048 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-10-11 19:09:43,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:43,247 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr629REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:43,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:43,247 INFO L85 PathProgramCache]: Analyzing trace with hash -536402057, now seen corresponding path program 1 times [2024-10-11 19:09:43,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:43,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042425225] [2024-10-11 19:09:43,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:43,248 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 [2024-10-11 19:09:43,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:43,249 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:43,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-11 19:09:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:43,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:09:43,372 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:43,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:43,452 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:43,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:43,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042425225] [2024-10-11 19:09:43,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042425225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:43,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:43,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:09:43,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723763334] [2024-10-11 19:09:43,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:43,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:09:43,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:43,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:09:43,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:09:43,456 INFO L87 Difference]: Start difference. First operand 1535 states and 2044 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:44,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:44,976 INFO L93 Difference]: Finished difference Result 1711 states and 2226 transitions. [2024-10-11 19:09:44,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:09:44,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-11 19:09:44,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:44,980 INFO L225 Difference]: With dead ends: 1711 [2024-10-11 19:09:44,980 INFO L226 Difference]: Without dead ends: 1705 [2024-10-11 19:09:44,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:09:44,981 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 247 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:44,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 3016 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 19:09:44,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-10-11 19:09:45,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1529. [2024-10-11 19:09:45,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 933 states have (on average 2.1639871382636655) internal successors, (2019), 1518 states have internal predecessors, (2019), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:09:45,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 2037 transitions. [2024-10-11 19:09:45,025 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 2037 transitions. Word has length 11 [2024-10-11 19:09:45,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:45,025 INFO L471 AbstractCegarLoop]: Abstraction has 1529 states and 2037 transitions. [2024-10-11 19:09:45,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:45,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 2037 transitions. [2024-10-11 19:09:45,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 19:09:45,029 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:45,029 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:09:45,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-10-11 19:09:45,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:45,230 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:45,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:45,232 INFO L85 PathProgramCache]: Analyzing trace with hash 898875271, now seen corresponding path program 1 times [2024-10-11 19:09:45,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:45,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440821964] [2024-10-11 19:09:45,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:45,233 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:45,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:45,236 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:45,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-11 19:09:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:45,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:09:45,388 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:45,412 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:45,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:45,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440821964] [2024-10-11 19:09:45,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440821964] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:45,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:45,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:09:45,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175785792] [2024-10-11 19:09:45,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:45,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:09:45,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:45,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:09:45,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:09:45,413 INFO L87 Difference]: Start difference. First operand 1529 states and 2037 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:46,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:46,237 INFO L93 Difference]: Finished difference Result 1513 states and 1993 transitions. [2024-10-11 19:09:46,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:09:46,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-11 19:09:46,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:46,241 INFO L225 Difference]: With dead ends: 1513 [2024-10-11 19:09:46,241 INFO L226 Difference]: Without dead ends: 1513 [2024-10-11 19:09:46,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:09:46,242 INFO L432 NwaCegarLoop]: 1015 mSDtfsCounter, 45 mSDsluCounter, 2012 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:46,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3027 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-11 19:09:46,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-10-11 19:09:46,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-10-11 19:09:46,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 931 states have (on average 2.121374865735768) internal successors, (1975), 1502 states have internal predecessors, (1975), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:09:46,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1993 transitions. [2024-10-11 19:09:46,266 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1993 transitions. Word has length 13 [2024-10-11 19:09:46,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:46,267 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 1993 transitions. [2024-10-11 19:09:46,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:46,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1993 transitions. [2024-10-11 19:09:46,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-11 19:09:46,268 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:46,268 INFO L215 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] [2024-10-11 19:09:46,273 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-11 19:09:46,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:46,469 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:46,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash 332414229, now seen corresponding path program 1 times [2024-10-11 19:09:46,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:46,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899449728] [2024-10-11 19:09:46,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:46,470 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 [2024-10-11 19:09:46,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:46,472 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:46,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-11 19:09:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:46,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:09:46,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:46,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:09:46,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:46,691 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:46,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:46,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899449728] [2024-10-11 19:09:46,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899449728] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:46,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:46,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:09:46,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267329341] [2024-10-11 19:09:46,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:46,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:09:46,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:46,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:09:46,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:09:46,693 INFO L87 Difference]: Start difference. First operand 1513 states and 1993 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:48,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:48,866 INFO L93 Difference]: Finished difference Result 1517 states and 1993 transitions. [2024-10-11 19:09:48,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:09:48,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-10-11 19:09:48,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:48,870 INFO L225 Difference]: With dead ends: 1517 [2024-10-11 19:09:48,870 INFO L226 Difference]: Without dead ends: 1517 [2024-10-11 19:09:48,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:09:48,871 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 857 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:48,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1114 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 19:09:48,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2024-10-11 19:09:48,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1509. [2024-10-11 19:09:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 931 states have (on average 2.112781954887218) internal successors, (1967), 1498 states have internal predecessors, (1967), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:09:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1985 transitions. [2024-10-11 19:09:48,891 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1985 transitions. Word has length 27 [2024-10-11 19:09:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:48,892 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 1985 transitions. [2024-10-11 19:09:48,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:48,892 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1985 transitions. [2024-10-11 19:09:48,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-11 19:09:48,893 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:48,893 INFO L215 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] [2024-10-11 19:09:48,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-10-11 19:09:49,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:49,094 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:49,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:49,094 INFO L85 PathProgramCache]: Analyzing trace with hash 332414230, now seen corresponding path program 1 times [2024-10-11 19:09:49,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:49,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1886766289] [2024-10-11 19:09:49,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:49,095 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 [2024-10-11 19:09:49,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:49,097 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:49,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-11 19:09:49,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:49,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:09:49,234 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:49,243 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:09:49,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:49,403 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:49,403 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:49,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1886766289] [2024-10-11 19:09:49,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1886766289] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:49,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:49,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:09:49,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436548652] [2024-10-11 19:09:49,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:49,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:09:49,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:09:49,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:09:49,404 INFO L87 Difference]: Start difference. First operand 1509 states and 1985 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:52,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:52,140 INFO L93 Difference]: Finished difference Result 1664 states and 2003 transitions. [2024-10-11 19:09:52,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:09:52,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-10-11 19:09:52,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:52,145 INFO L225 Difference]: With dead ends: 1664 [2024-10-11 19:09:52,145 INFO L226 Difference]: Without dead ends: 1664 [2024-10-11 19:09:52,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:09:52,146 INFO L432 NwaCegarLoop]: 1122 mSDtfsCounter, 404 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:52,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 2169 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-11 19:09:52,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2024-10-11 19:09:52,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1505. [2024-10-11 19:09:52,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 931 states have (on average 2.104189044038668) internal successors, (1959), 1494 states have internal predecessors, (1959), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:09:52,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1977 transitions. [2024-10-11 19:09:52,167 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1977 transitions. Word has length 27 [2024-10-11 19:09:52,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:52,167 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 1977 transitions. [2024-10-11 19:09:52,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:52,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1977 transitions. [2024-10-11 19:09:52,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-11 19:09:52,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:52,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:09:52,174 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-10-11 19:09:52,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:52,369 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:52,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:52,369 INFO L85 PathProgramCache]: Analyzing trace with hash -24905803, now seen corresponding path program 1 times [2024-10-11 19:09:52,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:52,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775855080] [2024-10-11 19:09:52,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:52,370 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 [2024-10-11 19:09:52,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:52,371 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:52,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-10-11 19:09:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:52,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:09:52,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:52,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:52,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:52,617 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:52,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775855080] [2024-10-11 19:09:52,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775855080] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:52,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:52,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:09:52,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072320559] [2024-10-11 19:09:52,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:52,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:09:52,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:52,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:09:52,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:09:52,618 INFO L87 Difference]: Start difference. First operand 1505 states and 1977 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:53,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:53,381 INFO L93 Difference]: Finished difference Result 1493 states and 1957 transitions. [2024-10-11 19:09:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:09:53,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-10-11 19:09:53,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:53,387 INFO L225 Difference]: With dead ends: 1493 [2024-10-11 19:09:53,387 INFO L226 Difference]: Without dead ends: 1493 [2024-10-11 19:09:53,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:09:53,388 INFO L432 NwaCegarLoop]: 1009 mSDtfsCounter, 15 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:53,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3010 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:09:53,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2024-10-11 19:09:53,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1493. [2024-10-11 19:09:53,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 919 states have (on average 2.1099020674646356) internal successors, (1939), 1482 states have internal predecessors, (1939), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:09:53,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1957 transitions. [2024-10-11 19:09:53,407 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1957 transitions. Word has length 46 [2024-10-11 19:09:53,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:53,408 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 1957 transitions. [2024-10-11 19:09:53,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:53,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1957 transitions. [2024-10-11 19:09:53,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-11 19:09:53,409 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:53,409 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:09:53,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-10-11 19:09:53,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:53,610 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:53,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:53,611 INFO L85 PathProgramCache]: Analyzing trace with hash 28068373, now seen corresponding path program 1 times [2024-10-11 19:09:53,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:53,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519088464] [2024-10-11 19:09:53,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:53,611 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 [2024-10-11 19:09:53,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:53,614 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:53,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-11 19:09:53,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:53,881 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 19:09:53,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:53,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:09:53,901 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:09:54,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:09:54,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-11 19:09:54,316 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:09:54,317 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 [2024-10-11 19:09:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:54,326 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:54,326 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:54,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519088464] [2024-10-11 19:09:54,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519088464] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:54,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:54,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:09:54,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599001694] [2024-10-11 19:09:54,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:54,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:09:54,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:54,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:09:54,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:09:54,328 INFO L87 Difference]: Start difference. First operand 1493 states and 1957 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:55,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:55,996 INFO L93 Difference]: Finished difference Result 1409 states and 1832 transitions. [2024-10-11 19:09:55,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:09:55,996 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-10-11 19:09:55,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:56,000 INFO L225 Difference]: With dead ends: 1409 [2024-10-11 19:09:56,000 INFO L226 Difference]: Without dead ends: 1409 [2024-10-11 19:09:56,000 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:09:56,000 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1564 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:56,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 485 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-11 19:09:56,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2024-10-11 19:09:56,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1270. [2024-10-11 19:09:56,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 780 states have (on average 1.9512820512820512) internal successors, (1522), 1259 states have internal predecessors, (1522), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:09:56,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1540 transitions. [2024-10-11 19:09:56,015 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1540 transitions. Word has length 50 [2024-10-11 19:09:56,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:56,015 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1540 transitions. [2024-10-11 19:09:56,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:56,016 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1540 transitions. [2024-10-11 19:09:56,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 19:09:56,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:56,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:09:56,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-10-11 19:09:56,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:56,217 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:56,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:56,218 INFO L85 PathProgramCache]: Analyzing trace with hash -957272213, now seen corresponding path program 1 times [2024-10-11 19:09:56,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:56,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146989067] [2024-10-11 19:09:56,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:56,219 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 [2024-10-11 19:09:56,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:56,222 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:56,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-10-11 19:09:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:56,466 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:09:56,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:56,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:09:56,488 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:09:56,508 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 23 treesize of output 11 [2024-10-11 19:09:56,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:56,515 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:56,515 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:56,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146989067] [2024-10-11 19:09:56,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146989067] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:56,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:56,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:09:56,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448720262] [2024-10-11 19:09:56,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:56,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:09:56,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:56,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:09:56,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:09:56,516 INFO L87 Difference]: Start difference. First operand 1270 states and 1540 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:58,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:09:58,609 INFO L93 Difference]: Finished difference Result 1269 states and 1538 transitions. [2024-10-11 19:09:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:09:58,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-11 19:09:58,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:09:58,614 INFO L225 Difference]: With dead ends: 1269 [2024-10-11 19:09:58,614 INFO L226 Difference]: Without dead ends: 1269 [2024-10-11 19:09:58,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:09:58,614 INFO L432 NwaCegarLoop]: 937 mSDtfsCounter, 2 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-11 19:09:58,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2370 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-11 19:09:58,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-10-11 19:09:58,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1269. [2024-10-11 19:09:58,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 780 states have (on average 1.9487179487179487) internal successors, (1520), 1258 states have internal predecessors, (1520), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:09:58,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1538 transitions. [2024-10-11 19:09:58,627 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1538 transitions. Word has length 54 [2024-10-11 19:09:58,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:09:58,627 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 1538 transitions. [2024-10-11 19:09:58,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:09:58,627 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1538 transitions. [2024-10-11 19:09:58,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 19:09:58,630 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:09:58,630 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:09:58,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-10-11 19:09:58,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:09:58,831 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:09:58,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:09:58,831 INFO L85 PathProgramCache]: Analyzing trace with hash -957272212, now seen corresponding path program 1 times [2024-10-11 19:09:58,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:09:58,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [673629190] [2024-10-11 19:09:58,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:09:58,832 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 [2024-10-11 19:09:58,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:09:58,834 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:09:58,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-10-11 19:09:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:09:59,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 19:09:59,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:09:59,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:09:59,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 19:09:59,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:09:59,126 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 21 treesize of output 9 [2024-10-11 19:09:59,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:09:59,143 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:09:59,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:09:59,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [673629190] [2024-10-11 19:09:59,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [673629190] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:09:59,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:09:59,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:09:59,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141518715] [2024-10-11 19:09:59,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:09:59,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:09:59,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:09:59,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:09:59,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:09:59,145 INFO L87 Difference]: Start difference. First operand 1269 states and 1538 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:10:01,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:10:01,943 INFO L93 Difference]: Finished difference Result 1268 states and 1536 transitions. [2024-10-11 19:10:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:10:01,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-11 19:10:01,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:10:01,946 INFO L225 Difference]: With dead ends: 1268 [2024-10-11 19:10:01,947 INFO L226 Difference]: Without dead ends: 1268 [2024-10-11 19:10:01,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:10:01,947 INFO L432 NwaCegarLoop]: 937 mSDtfsCounter, 1 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:10:01,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2399 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1862 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-11 19:10:01,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-10-11 19:10:01,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1268. [2024-10-11 19:10:01,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 778 states have (on average 1.9511568123393317) internal successors, (1518), 1257 states have internal predecessors, (1518), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:10:01,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1536 transitions. [2024-10-11 19:10:01,962 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1536 transitions. Word has length 54 [2024-10-11 19:10:01,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:10:01,962 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1536 transitions. [2024-10-11 19:10:01,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:10:01,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1536 transitions. [2024-10-11 19:10:01,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 19:10:01,963 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:10:01,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:10:01,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-10-11 19:10:02,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:10:02,164 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:10:02,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:10:02,164 INFO L85 PathProgramCache]: Analyzing trace with hash 634687919, now seen corresponding path program 1 times [2024-10-11 19:10:02,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:10:02,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [330801565] [2024-10-11 19:10:02,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:10:02,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:10:02,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:10:02,167 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:10:02,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-10-11 19:10:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:10:02,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:10:02,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:10:02,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:10:02,396 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:10:02,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:10:02,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [330801565] [2024-10-11 19:10:02,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [330801565] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:10:02,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:10:02,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:10:02,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921165010] [2024-10-11 19:10:02,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:10:02,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:10:02,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:10:02,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:10:02,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:10:02,397 INFO L87 Difference]: Start difference. First operand 1268 states and 1536 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 19:10:03,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:10:03,140 INFO L93 Difference]: Finished difference Result 1270 states and 1541 transitions. [2024-10-11 19:10:03,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:10:03,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2024-10-11 19:10:03,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:10:03,146 INFO L225 Difference]: With dead ends: 1270 [2024-10-11 19:10:03,146 INFO L226 Difference]: Without dead ends: 1270 [2024-10-11 19:10:03,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:10:03,147 INFO L432 NwaCegarLoop]: 936 mSDtfsCounter, 0 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:10:03,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2802 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:10:03,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-10-11 19:10:03,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1270. [2024-10-11 19:10:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 779 states have (on average 1.951219512195122) internal successors, (1520), 1259 states have internal predecessors, (1520), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:10:03,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1541 transitions. [2024-10-11 19:10:03,166 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1541 transitions. Word has length 60 [2024-10-11 19:10:03,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:10:03,167 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1541 transitions. [2024-10-11 19:10:03,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 19:10:03,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1541 transitions. [2024-10-11 19:10:03,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-11 19:10:03,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:10:03,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:10:03,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-10-11 19:10:03,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:10:03,368 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:10:03,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:10:03,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1766215004, now seen corresponding path program 1 times [2024-10-11 19:10:03,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:10:03,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [713677971] [2024-10-11 19:10:03,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:10:03,369 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 [2024-10-11 19:10:03,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:10:03,371 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:10:03,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-11 19:10:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:10:03,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:10:03,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:10:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:10:03,621 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:10:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:10:03,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:10:03,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [713677971] [2024-10-11 19:10:03,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [713677971] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:10:03,684 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:10:03,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-11 19:10:03,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159567970] [2024-10-11 19:10:03,685 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:10:03,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 19:10:03,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:10:03,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 19:10:03,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 19:10:03,687 INFO L87 Difference]: Start difference. First operand 1270 states and 1541 transitions. Second operand has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:10:04,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:10:04,707 INFO L93 Difference]: Finished difference Result 1279 states and 1557 transitions. [2024-10-11 19:10:04,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:10:04,708 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 61 [2024-10-11 19:10:04,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:10:04,712 INFO L225 Difference]: With dead ends: 1279 [2024-10-11 19:10:04,712 INFO L226 Difference]: Without dead ends: 1279 [2024-10-11 19:10:04,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-11 19:10:04,713 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 5 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:10:04,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3726 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 19:10:04,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2024-10-11 19:10:04,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1278. [2024-10-11 19:10:04,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 786 states have (on average 1.950381679389313) internal successors, (1533), 1266 states have internal predecessors, (1533), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:10:04,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1554 transitions. [2024-10-11 19:10:04,732 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1554 transitions. Word has length 61 [2024-10-11 19:10:04,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:10:04,732 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1554 transitions. [2024-10-11 19:10:04,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:10:04,732 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1554 transitions. [2024-10-11 19:10:04,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 19:10:04,733 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:10:04,733 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:10:04,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2024-10-11 19:10:04,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:10:04,934 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:10:04,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:10:04,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1379701999, now seen corresponding path program 2 times [2024-10-11 19:10:04,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:10:04,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044821156] [2024-10-11 19:10:04,935 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:10:04,935 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 [2024-10-11 19:10:04,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:10:04,937 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:10:04,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-10-11 19:10:05,300 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:10:05,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:10:05,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 19:10:05,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:10:05,349 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:10:05,349 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:10:05,476 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:10:05,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:10:05,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044821156] [2024-10-11 19:10:05,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044821156] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:10:05,477 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:10:05,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-11 19:10:05,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715285412] [2024-10-11 19:10:05,477 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:10:05,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 19:10:05,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:10:05,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 19:10:05,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-11 19:10:05,479 INFO L87 Difference]: Start difference. First operand 1278 states and 1554 transitions. Second operand has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:10:07,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:10:07,036 INFO L93 Difference]: Finished difference Result 1290 states and 1575 transitions. [2024-10-11 19:10:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 19:10:07,037 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2024-10-11 19:10:07,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:10:07,042 INFO L225 Difference]: With dead ends: 1290 [2024-10-11 19:10:07,042 INFO L226 Difference]: Without dead ends: 1288 [2024-10-11 19:10:07,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-11 19:10:07,043 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 7 mSDsluCounter, 4660 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5594 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:10:07,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5594 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 19:10:07,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2024-10-11 19:10:07,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1287. [2024-10-11 19:10:07,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 795 states have (on average 1.9433962264150944) internal successors, (1545), 1275 states have internal predecessors, (1545), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:10:07,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1566 transitions. [2024-10-11 19:10:07,058 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1566 transitions. Word has length 64 [2024-10-11 19:10:07,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:10:07,058 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1566 transitions. [2024-10-11 19:10:07,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:10:07,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1566 transitions. [2024-10-11 19:10:07,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 19:10:07,059 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:10:07,060 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:10:07,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-10-11 19:10:07,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:10:07,261 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:10:07,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:10:07,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1898499535, now seen corresponding path program 3 times [2024-10-11 19:10:07,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:10:07,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273524160] [2024-10-11 19:10:07,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 19:10:07,262 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 [2024-10-11 19:10:07,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:10:07,263 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:10:07,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-10-11 19:10:07,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-11 19:10:07,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:10:07,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:10:07,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:10:07,987 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:10:07,988 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:10:08,409 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:10:08,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:10:08,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273524160] [2024-10-11 19:10:08,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273524160] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:10:08,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:10:08,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-11 19:10:08,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510949281] [2024-10-11 19:10:08,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:10:08,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 19:10:08,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:10:08,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 19:10:08,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-11 19:10:08,411 INFO L87 Difference]: Start difference. First operand 1287 states and 1566 transitions. Second operand has 26 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 26 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:10:12,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:10:12,237 INFO L93 Difference]: Finished difference Result 1308 states and 1602 transitions. [2024-10-11 19:10:12,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-11 19:10:12,238 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 26 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 70 [2024-10-11 19:10:12,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:10:12,245 INFO L225 Difference]: With dead ends: 1308 [2024-10-11 19:10:12,247 INFO L226 Difference]: Without dead ends: 1305 [2024-10-11 19:10:12,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-11 19:10:12,249 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 13 mSDsluCounter, 10248 mSDsCounter, 0 mSdLazyCounter, 2108 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11182 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:10:12,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11182 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2108 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-11 19:10:12,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2024-10-11 19:10:12,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2024-10-11 19:10:12,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 813 states have (on average 1.928659286592866) internal successors, (1568), 1293 states have internal predecessors, (1568), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:10:12,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1589 transitions. [2024-10-11 19:10:12,268 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1589 transitions. Word has length 70 [2024-10-11 19:10:12,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:10:12,268 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1589 transitions. [2024-10-11 19:10:12,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 26 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:10:12,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1589 transitions. [2024-10-11 19:10:12,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 19:10:12,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:10:12,272 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:10:12,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-10-11 19:10:12,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:10:12,472 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:10:12,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:10:12,473 INFO L85 PathProgramCache]: Analyzing trace with hash -830683249, now seen corresponding path program 4 times [2024-10-11 19:10:12,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:10:12,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1805335464] [2024-10-11 19:10:12,473 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 19:10:12,473 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 [2024-10-11 19:10:12,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:10:12,475 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:10:12,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-10-11 19:10:12,869 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 19:10:12,869 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:10:12,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-11 19:10:12,885 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:10:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:10:13,194 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:10:14,350 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:10:14,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:10:14,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1805335464] [2024-10-11 19:10:14,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1805335464] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:10:14,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:10:14,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-11 19:10:14,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097871616] [2024-10-11 19:10:14,350 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:10:14,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-11 19:10:14,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:10:14,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-11 19:10:14,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-11 19:10:14,353 INFO L87 Difference]: Start difference. First operand 1305 states and 1589 transitions. Second operand has 50 states, 48 states have (on average 2.1666666666666665) internal successors, (104), 50 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:10:24,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:10:24,389 INFO L93 Difference]: Finished difference Result 1342 states and 1660 transitions. [2024-10-11 19:10:24,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-11 19:10:24,391 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.1666666666666665) internal successors, (104), 50 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2024-10-11 19:10:24,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:10:24,395 INFO L225 Difference]: With dead ends: 1342 [2024-10-11 19:10:24,396 INFO L226 Difference]: Without dead ends: 1340 [2024-10-11 19:10:24,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-11 19:10:24,398 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 25 mSDsluCounter, 26086 mSDsCounter, 0 mSdLazyCounter, 5646 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27020 SdHoareTripleChecker+Invalid, 5683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 5646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-10-11 19:10:24,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27020 Invalid, 5683 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 5646 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-10-11 19:10:24,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-10-11 19:10:24,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1339. [2024-10-11 19:10:24,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 847 states have (on average 1.9055489964580874) internal successors, (1614), 1327 states have internal predecessors, (1614), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:10:24,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1635 transitions. [2024-10-11 19:10:24,417 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1635 transitions. Word has length 82 [2024-10-11 19:10:24,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:10:24,417 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 1635 transitions. [2024-10-11 19:10:24,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.1666666666666665) internal successors, (104), 50 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:10:24,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1635 transitions. [2024-10-11 19:10:24,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-11 19:10:24,418 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:10:24,418 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:10:24,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-10-11 19:10:24,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:10:24,619 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:10:24,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:10:24,620 INFO L85 PathProgramCache]: Analyzing trace with hash 960845167, now seen corresponding path program 5 times [2024-10-11 19:10:24,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:10:24,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1611576974] [2024-10-11 19:10:24,620 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:10:24,620 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 [2024-10-11 19:10:24,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:10:24,622 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-10-11 19:10:24,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-10-11 19:10:25,724 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-11 19:10:25,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:10:25,745 INFO L255 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-11 19:10:25,752 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:10:25,769 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-10-11 19:10:25,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 22 [2024-10-11 19:10:26,070 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-10-11 19:10:26,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2024-10-11 19:10:26,116 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:10:26,231 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 42 treesize of output 24 [2024-10-11 19:10:28,406 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-11 19:10:28,407 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 62 treesize of output 59 [2024-10-11 19:10:28,508 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 51 treesize of output 27 [2024-10-11 19:10:28,567 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-10-11 19:10:28,567 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:10:28,880 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:10:28,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1611576974] [2024-10-11 19:10:28,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1611576974] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:10:28,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [126933417] [2024-10-11 19:10:28,880 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:10:28,880 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-11 19:10:28,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-11 19:10:28,881 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-11 19:10:28,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process