./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:15:58,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:15:58,443 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:15:58,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:15:58,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:15:58,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:15:58,476 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:15:58,477 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:15:58,477 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:15:58,479 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:15:58,479 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:15:58,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:15:58,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:15:58,480 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:15:58,481 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:15:58,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:15:58,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:15:58,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:15:58,482 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:15:58,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:15:58,483 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:15:58,483 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:15:58,485 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:15:58,486 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:15:58,486 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:15:58,486 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:15:58,486 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:15:58,487 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:15:58,487 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:15:58,487 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:15:58,487 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:15:58,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:15:58,488 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:15:58,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:15:58,488 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:15:58,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:15:58,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:15:58,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:15:58,489 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:15:58,489 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:15:58,489 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:15:58,491 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:15:58,491 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-09 10:15:58,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:15:58,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:15:58,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:15:58,718 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:15:58,719 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:15:58,719 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-2.i [2024-11-09 10:15:59,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:16:00,247 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:16:00,248 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-2.i [2024-11-09 10:16:00,266 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e70ebb500/61c165a52a724f41961fb12391454bd0/FLAGb73e3d31c [2024-11-09 10:16:00,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e70ebb500/61c165a52a724f41961fb12391454bd0 [2024-11-09 10:16:00,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:16:00,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:16:00,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:16:00,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:16:00,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:16:00,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:16:00" (1/1) ... [2024-11-09 10:16:00,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ff55734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:00, skipping insertion in model container [2024-11-09 10:16:00,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:16:00" (1/1) ... [2024-11-09 10:16:00,347 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:16:00,675 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,708 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,714 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,717 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,726 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,751 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,752 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,753 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,754 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,755 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,756 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,757 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,758 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,759 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,761 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:00,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:16:00,776 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) [2024-11-09 10:16:00,777 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7eb316f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:00, skipping insertion in model container [2024-11-09 10:16:00,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:16:00,777 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-09 10:16:00,779 INFO L158 Benchmark]: Toolchain (without parser) took 494.36ms. Allocated memory was 155.2MB in the beginning and 216.0MB in the end (delta: 60.8MB). Free memory was 81.4MB in the beginning and 175.4MB in the end (delta: -94.0MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-11-09 10:16:00,780 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory was 107.4MB in the beginning and 107.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 10:16:00,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.11ms. Allocated memory was 155.2MB in the beginning and 216.0MB in the end (delta: 60.8MB). Free memory was 81.2MB in the beginning and 175.4MB in the end (delta: -94.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2024-11-09 10:16:00,782 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 155.2MB. Free memory was 107.4MB in the beginning and 107.2MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.11ms. Allocated memory was 155.2MB in the beginning and 216.0MB in the end (delta: 60.8MB). Free memory was 81.2MB in the beginning and 175.4MB in the end (delta: -94.1MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 831]: 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/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:16:02,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:16:02,486 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-09 10:16:02,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:16:02,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:16:02,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:16:02,521 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:16:02,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:16:02,522 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:16:02,523 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:16:02,523 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:16:02,523 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:16:02,524 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:16:02,524 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:16:02,526 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:16:02,526 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:16:02,527 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:16:02,527 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:16:02,527 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:16:02,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:16:02,528 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:16:02,531 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:16:02,532 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:16:02,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:16:02,532 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:16:02,532 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 10:16:02,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:16:02,533 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 10:16:02,533 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:16:02,533 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:16:02,534 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:16:02,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:16:02,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:16:02,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:16:02,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:16:02,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:16:02,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:16:02,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:16:02,535 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-09 10:16:02,536 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 10:16:02,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:16:02,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:16:02,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:16:02,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:16:02,537 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-09 10:16:02,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:16:02,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:16:02,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:16:02,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:16:02,837 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:16:02,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-2.i [2024-11-09 10:16:04,104 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:16:04,346 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:16:04,347 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_nondet_test2-2.i [2024-11-09 10:16:04,369 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01a5a2a93/52476a19b66f44bfb15f497ef0b1c8ff/FLAG84610b2bb [2024-11-09 10:16:04,380 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01a5a2a93/52476a19b66f44bfb15f497ef0b1c8ff [2024-11-09 10:16:04,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:16:04,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:16:04,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:16:04,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:16:04,391 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:16:04,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:16:04" (1/1) ... [2024-11-09 10:16:04,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2970d64b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:04, skipping insertion in model container [2024-11-09 10:16:04,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:16:04" (1/1) ... [2024-11-09 10:16:04,427 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:16:04,795 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,838 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,843 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,850 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,856 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,895 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,897 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,901 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,902 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,904 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,907 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,908 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,909 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,910 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,916 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:16:04,939 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-09 10:16:04,949 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:16:04,975 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,983 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,985 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,986 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:04,989 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:05,002 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:05,003 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:05,005 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:05,005 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:05,007 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:05,010 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:05,013 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:05,014 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:05,015 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:05,019 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:16:05,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:16:05,032 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:16:05,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:16:05,136 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:16:05,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05 WrapperNode [2024-11-09 10:16:05,136 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:16:05,137 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:16:05,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:16:05,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:16:05,142 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,231 INFO L138 Inliner]: procedures = 210, calls = 273, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1059 [2024-11-09 10:16:05,234 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:16:05,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:16:05,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:16:05,235 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:16:05,243 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,249 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,300 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 34, 218]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 4, 50]. [2024-11-09 10:16:05,300 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,303 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,341 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,377 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:16:05,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:16:05,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:16:05,378 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:16:05,378 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (1/1) ... [2024-11-09 10:16:05,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:16:05,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:16:05,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 10:16:05,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 10:16:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-09 10:16:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-09 10:16:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-09 10:16:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-09 10:16:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-09 10:16:05,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-09 10:16:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-09 10:16:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-09 10:16:05,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-09 10:16:05,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-09 10:16:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-09 10:16:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 10:16:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:16:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 10:16:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 10:16:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 10:16:05,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:16:05,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:16:05,631 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:16:05,633 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:16:05,635 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-09 10:16:05,669 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-09 10:16:05,680 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-09 10:16:08,254 INFO L? ?]: Removed 1087 outVars from TransFormulas that were not future-live. [2024-11-09 10:16:08,254 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:16:08,283 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:16:08,284 INFO L316 CfgBuilder]: Removed 63 assume(true) statements. [2024-11-09 10:16:08,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:16:08 BoogieIcfgContainer [2024-11-09 10:16:08,287 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:16:08,289 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:16:08,289 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:16:08,291 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:16:08,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:16:04" (1/3) ... [2024-11-09 10:16:08,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0396e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:16:08, skipping insertion in model container [2024-11-09 10:16:08,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:16:05" (2/3) ... [2024-11-09 10:16:08,292 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e0396e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:16:08, skipping insertion in model container [2024-11-09 10:16:08,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:16:08" (3/3) ... [2024-11-09 10:16:08,293 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SFH_nondet_test2-2.i [2024-11-09 10:16:08,305 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:16:08,306 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 525 error locations. [2024-11-09 10:16:08,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:16:08,368 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;@185e6381, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:16:08,369 INFO L334 AbstractCegarLoop]: Starting to check reachability of 525 error locations. [2024-11-09 10:16:08,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 1060 states, 533 states have (on average 2.2157598499061915) internal successors, (1181), 1055 states have internal predecessors, (1181), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:08,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 10:16:08,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:08,384 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 10:16:08,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr524ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:08,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:08,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1758428, now seen corresponding path program 1 times [2024-11-09 10:16:08,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:08,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [504838793] [2024-11-09 10:16:08,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:08,401 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 [2024-11-09 10:16:08,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:08,403 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/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) [2024-11-09 10:16:08,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:08,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:08,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 10:16:08,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:08,592 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_46| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_46|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_46| (_ bv0 1)) |c_#valid|))) is different from true [2024-11-09 10:16:08,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:08,594 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:08,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:08,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [504838793] [2024-11-09 10:16:08,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [504838793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:08,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:08,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:16:08,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140464408] [2024-11-09 10:16:08,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:08,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:08,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:08,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:08,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-09 10:16:08,639 INFO L87 Difference]: Start difference. First operand has 1060 states, 533 states have (on average 2.2157598499061915) internal successors, (1181), 1055 states have internal predecessors, (1181), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-09 10:16:10,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:10,179 INFO L93 Difference]: Finished difference Result 1448 states and 1549 transitions. [2024-11-09 10:16:10,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:16:10,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2024-11-09 10:16:10,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:10,193 INFO L225 Difference]: With dead ends: 1448 [2024-11-09 10:16:10,193 INFO L226 Difference]: Without dead ends: 1445 [2024-11-09 10:16:10,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-09 10:16:10,196 INFO L432 NwaCegarLoop]: 912 mSDtfsCounter, 426 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 2289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1550 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:10,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 1483 Invalid, 2289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 739 Invalid, 0 Unknown, 1550 Unchecked, 1.5s Time] [2024-11-09 10:16:10,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2024-11-09 10:16:10,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1048. [2024-11-09 10:16:10,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 527 states have (on average 2.0853889943074004) internal successors, (1099), 1043 states have internal predecessors, (1099), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1105 transitions. [2024-11-09 10:16:10,271 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1105 transitions. Word has length 4 [2024-11-09 10:16:10,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:10,271 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1105 transitions. [2024-11-09 10:16:10,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2024-11-09 10:16:10,272 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1105 transitions. [2024-11-09 10:16:10,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 10:16:10,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:10,272 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 10:16:10,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:10,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/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 [2024-11-09 10:16:10,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:10,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:10,476 INFO L85 PathProgramCache]: Analyzing trace with hash 1756837, now seen corresponding path program 1 times [2024-11-09 10:16:10,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511695010] [2024-11-09 10:16:10,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:10,477 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 [2024-11-09 10:16:10,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:10,478 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/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) [2024-11-09 10:16:10,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:10,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:10,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 10:16:10,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:10,591 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 [2024-11-09 10:16:10,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:10,599 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:10,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:10,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511695010] [2024-11-09 10:16:10,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511695010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:10,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:10,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:16:10,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106531785] [2024-11-09 10:16:10,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:10,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:16:10,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:10,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:16:10,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:10,601 INFO L87 Difference]: Start difference. First operand 1048 states and 1105 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 10:16:11,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:11,678 INFO L93 Difference]: Finished difference Result 1224 states and 1291 transitions. [2024-11-09 10:16:11,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:16:11,679 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-11-09 10:16:11,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:11,682 INFO L225 Difference]: With dead ends: 1224 [2024-11-09 10:16:11,682 INFO L226 Difference]: Without dead ends: 1224 [2024-11-09 10:16:11,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:11,683 INFO L432 NwaCegarLoop]: 630 mSDtfsCounter, 968 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 971 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:11,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [971 Valid, 778 Invalid, 650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 10:16:11,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1224 states. [2024-11-09 10:16:11,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1224 to 1045. [2024-11-09 10:16:11,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 535 states have (on average 2.0504672897196263) internal successors, (1097), 1040 states have internal predecessors, (1097), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1103 transitions. [2024-11-09 10:16:11,706 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1103 transitions. Word has length 4 [2024-11-09 10:16:11,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:11,707 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1103 transitions. [2024-11-09 10:16:11,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 10:16:11,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1103 transitions. [2024-11-09 10:16:11,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 10:16:11,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:11,707 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 10:16:11,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:11,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/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 [2024-11-09 10:16:11,909 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:11,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:11,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1756838, now seen corresponding path program 1 times [2024-11-09 10:16:11,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:11,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119318946] [2024-11-09 10:16:11,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:11,910 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 [2024-11-09 10:16:11,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:11,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/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) [2024-11-09 10:16:11,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:11,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:11,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 10:16:11,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:12,018 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 [2024-11-09 10:16:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:12,038 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:12,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:12,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119318946] [2024-11-09 10:16:12,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119318946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:12,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:12,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:16:12,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850715521] [2024-11-09 10:16:12,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:12,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:16:12,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:12,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:16:12,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:12,043 INFO L87 Difference]: Start difference. First operand 1045 states and 1103 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 10:16:13,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:13,659 INFO L93 Difference]: Finished difference Result 1457 states and 1547 transitions. [2024-11-09 10:16:13,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:16:13,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2024-11-09 10:16:13,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:13,664 INFO L225 Difference]: With dead ends: 1457 [2024-11-09 10:16:13,664 INFO L226 Difference]: Without dead ends: 1457 [2024-11-09 10:16:13,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:13,668 INFO L432 NwaCegarLoop]: 904 mSDtfsCounter, 444 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 1483 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:13,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 1483 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-09 10:16:13,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-11-09 10:16:13,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1170. [2024-11-09 10:16:13,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1170 states, 661 states have (on average 2.006051437216339) internal successors, (1326), 1165 states have internal predecessors, (1326), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:13,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1170 states to 1170 states and 1332 transitions. [2024-11-09 10:16:13,689 INFO L78 Accepts]: Start accepts. Automaton has 1170 states and 1332 transitions. Word has length 4 [2024-11-09 10:16:13,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:13,689 INFO L471 AbstractCegarLoop]: Abstraction has 1170 states and 1332 transitions. [2024-11-09 10:16:13,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 10:16:13,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1170 states and 1332 transitions. [2024-11-09 10:16:13,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 10:16:13,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:13,689 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:13,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-11-09 10:16:13,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/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 [2024-11-09 10:16:13,892 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:13,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:13,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1021429073, now seen corresponding path program 1 times [2024-11-09 10:16:13,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:13,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1431324011] [2024-11-09 10:16:13,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:13,893 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 [2024-11-09 10:16:13,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:13,896 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/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) [2024-11-09 10:16:13,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:13,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 10:16:13,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:14,002 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 [2024-11-09 10:16:14,009 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 [2024-11-09 10:16:14,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 10:16:14,082 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 [2024-11-09 10:16:14,097 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 10:16:14,098 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 [2024-11-09 10:16:14,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:14,119 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:14,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:14,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1431324011] [2024-11-09 10:16:14,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1431324011] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:14,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:14,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:16:14,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603039825] [2024-11-09 10:16:14,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:14,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:14,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:14,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:14,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:14,121 INFO L87 Difference]: Start difference. First operand 1170 states and 1332 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:15,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:15,881 INFO L93 Difference]: Finished difference Result 1338 states and 1508 transitions. [2024-11-09 10:16:15,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:16:15,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 10:16:15,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:15,885 INFO L225 Difference]: With dead ends: 1338 [2024-11-09 10:16:15,885 INFO L226 Difference]: Without dead ends: 1338 [2024-11-09 10:16:15,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:15,886 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 1252 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1255 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:15,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1255 Valid, 451 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 949 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 10:16:15,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-11-09 10:16:15,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1033. [2024-11-09 10:16:15,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 535 states have (on average 2.0261682242990653) internal successors, (1084), 1028 states have internal predecessors, (1084), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:15,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1090 transitions. [2024-11-09 10:16:15,898 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1090 transitions. Word has length 8 [2024-11-09 10:16:15,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:15,898 INFO L471 AbstractCegarLoop]: Abstraction has 1033 states and 1090 transitions. [2024-11-09 10:16:15,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:15,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1090 transitions. [2024-11-09 10:16:15,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 10:16:15,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:15,899 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:15,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:16,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/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 [2024-11-09 10:16:16,099 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:16,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:16,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1599530194, now seen corresponding path program 1 times [2024-11-09 10:16:16,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:16,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1493492208] [2024-11-09 10:16:16,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:16,100 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 [2024-11-09 10:16:16,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:16,103 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/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) [2024-11-09 10:16:16,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:16,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 10:16:16,185 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:16,194 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 [2024-11-09 10:16:16,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:16,205 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:16,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:16,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1493492208] [2024-11-09 10:16:16,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1493492208] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:16,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:16,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:16:16,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831942840] [2024-11-09 10:16:16,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:16,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:16:16,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:16,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:16:16,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:16,207 INFO L87 Difference]: Start difference. First operand 1033 states and 1090 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:17,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:17,217 INFO L93 Difference]: Finished difference Result 1198 states and 1276 transitions. [2024-11-09 10:16:17,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:16:17,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 10:16:17,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:17,221 INFO L225 Difference]: With dead ends: 1198 [2024-11-09 10:16:17,221 INFO L226 Difference]: Without dead ends: 1198 [2024-11-09 10:16:17,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:17,222 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 749 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 752 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:17,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [752 Valid, 1117 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 10:16:17,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1198 states. [2024-11-09 10:16:17,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1198 to 986. [2024-11-09 10:16:17,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 535 states have (on average 1.9383177570093457) internal successors, (1037), 981 states have internal predecessors, (1037), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:17,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1043 transitions. [2024-11-09 10:16:17,233 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1043 transitions. Word has length 9 [2024-11-09 10:16:17,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:17,233 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1043 transitions. [2024-11-09 10:16:17,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:17,234 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1043 transitions. [2024-11-09 10:16:17,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 10:16:17,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:17,234 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:17,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:17,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/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 [2024-11-09 10:16:17,435 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:17,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:17,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1599530193, now seen corresponding path program 1 times [2024-11-09 10:16:17,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:17,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549922895] [2024-11-09 10:16:17,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:17,436 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 [2024-11-09 10:16:17,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:17,438 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/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) [2024-11-09 10:16:17,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:17,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 10:16:17,532 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:17,538 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 [2024-11-09 10:16:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:17,554 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:17,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:17,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549922895] [2024-11-09 10:16:17,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549922895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:17,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:17,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:16:17,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003490761] [2024-11-09 10:16:17,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:17,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:16:17,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:17,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:16:17,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:17,556 INFO L87 Difference]: Start difference. First operand 986 states and 1043 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:18,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:18,766 INFO L93 Difference]: Finished difference Result 1274 states and 1355 transitions. [2024-11-09 10:16:18,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:16:18,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 10:16:18,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:18,769 INFO L225 Difference]: With dead ends: 1274 [2024-11-09 10:16:18,769 INFO L226 Difference]: Without dead ends: 1274 [2024-11-09 10:16:18,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:18,770 INFO L432 NwaCegarLoop]: 1044 mSDtfsCounter, 500 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:18,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 1464 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 10:16:18,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2024-11-09 10:16:18,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1013. [2024-11-09 10:16:18,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1013 states, 572 states have (on average 1.9248251748251748) internal successors, (1101), 1008 states have internal predecessors, (1101), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:18,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1013 states to 1013 states and 1107 transitions. [2024-11-09 10:16:18,781 INFO L78 Accepts]: Start accepts. Automaton has 1013 states and 1107 transitions. Word has length 9 [2024-11-09 10:16:18,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:18,782 INFO L471 AbstractCegarLoop]: Abstraction has 1013 states and 1107 transitions. [2024-11-09 10:16:18,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:18,782 INFO L276 IsEmpty]: Start isEmpty. Operand 1013 states and 1107 transitions. [2024-11-09 10:16:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 10:16:18,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:18,784 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:18,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-11-09 10:16:18,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/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 [2024-11-09 10:16:18,985 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr419REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:18,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:18,986 INFO L85 PathProgramCache]: Analyzing trace with hash -153057981, now seen corresponding path program 1 times [2024-11-09 10:16:18,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:18,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1944028387] [2024-11-09 10:16:18,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:18,986 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 [2024-11-09 10:16:18,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:18,989 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/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) [2024-11-09 10:16:18,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:19,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 10:16:19,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:19,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:19,166 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:19,166 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:19,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1944028387] [2024-11-09 10:16:19,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1944028387] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:19,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:19,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:16:19,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269876183] [2024-11-09 10:16:19,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:19,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:16:19,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:19,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:16:19,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:19,167 INFO L87 Difference]: Start difference. First operand 1013 states and 1107 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-09 10:16:19,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:19,296 INFO L93 Difference]: Finished difference Result 1453 states and 1602 transitions. [2024-11-09 10:16:19,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:16:19,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2024-11-09 10:16:19,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:19,300 INFO L225 Difference]: With dead ends: 1453 [2024-11-09 10:16:19,300 INFO L226 Difference]: Without dead ends: 1453 [2024-11-09 10:16:19,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:19,301 INFO L432 NwaCegarLoop]: 1093 mSDtfsCounter, 466 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 2033 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:19,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 2033 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 10:16:19,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2024-11-09 10:16:19,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1187. [2024-11-09 10:16:19,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1187 states, 746 states have (on average 1.8686327077747988) internal successors, (1394), 1182 states have internal predecessors, (1394), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:19,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1187 states to 1187 states and 1400 transitions. [2024-11-09 10:16:19,316 INFO L78 Accepts]: Start accepts. Automaton has 1187 states and 1400 transitions. Word has length 12 [2024-11-09 10:16:19,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:19,317 INFO L471 AbstractCegarLoop]: Abstraction has 1187 states and 1400 transitions. [2024-11-09 10:16:19,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-09 10:16:19,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1187 states and 1400 transitions. [2024-11-09 10:16:19,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 10:16:19,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:19,318 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:19,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-11-09 10:16:19,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/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 [2024-11-09 10:16:19,519 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr330REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:19,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:19,519 INFO L85 PathProgramCache]: Analyzing trace with hash -1410939272, now seen corresponding path program 1 times [2024-11-09 10:16:19,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:19,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510814390] [2024-11-09 10:16:19,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:19,520 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 [2024-11-09 10:16:19,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:19,521 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/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) [2024-11-09 10:16:19,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:19,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 10:16:19,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:19,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:19,622 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:19,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:19,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510814390] [2024-11-09 10:16:19,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510814390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:19,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:19,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:16:19,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81399920] [2024-11-09 10:16:19,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:19,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:16:19,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:19,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:16:19,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:19,623 INFO L87 Difference]: Start difference. First operand 1187 states and 1400 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:19,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:19,644 INFO L93 Difference]: Finished difference Result 1127 states and 1314 transitions. [2024-11-09 10:16:19,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:16:19,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 10:16:19,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:19,647 INFO L225 Difference]: With dead ends: 1127 [2024-11-09 10:16:19,647 INFO L226 Difference]: Without dead ends: 1127 [2024-11-09 10:16:19,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:19,648 INFO L432 NwaCegarLoop]: 970 mSDtfsCounter, 71 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1877 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:19,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1877 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 10:16:19,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2024-11-09 10:16:19,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2024-11-09 10:16:19,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1127 states, 710 states have (on average 1.8422535211267606) internal successors, (1308), 1122 states have internal predecessors, (1308), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:19,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1314 transitions. [2024-11-09 10:16:19,660 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1314 transitions. Word has length 14 [2024-11-09 10:16:19,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:19,660 INFO L471 AbstractCegarLoop]: Abstraction has 1127 states and 1314 transitions. [2024-11-09 10:16:19,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:19,661 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1314 transitions. [2024-11-09 10:16:19,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 10:16:19,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:19,661 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:19,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:19,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/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 [2024-11-09 10:16:19,862 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr524ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:19,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:19,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1512080444, now seen corresponding path program 1 times [2024-11-09 10:16:19,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:19,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238479450] [2024-11-09 10:16:19,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:19,863 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 [2024-11-09 10:16:19,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:19,864 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/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) [2024-11-09 10:16:19,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:19,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 10:16:19,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:20,049 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_47| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_47| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_47|)))) is different from true [2024-11-09 10:16:20,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:20,049 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:20,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:20,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238479450] [2024-11-09 10:16:20,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238479450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:20,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:20,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:16:20,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808730717] [2024-11-09 10:16:20,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:20,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:20,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:20,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:20,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-09 10:16:20,051 INFO L87 Difference]: Start difference. First operand 1127 states and 1314 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-09 10:16:20,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:20,962 INFO L93 Difference]: Finished difference Result 1402 states and 1609 transitions. [2024-11-09 10:16:20,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:16:20,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2024-11-09 10:16:20,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:20,965 INFO L225 Difference]: With dead ends: 1402 [2024-11-09 10:16:20,965 INFO L226 Difference]: Without dead ends: 1400 [2024-11-09 10:16:20,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2024-11-09 10:16:20,966 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 286 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1280 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:20,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 1406 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 564 Invalid, 0 Unknown, 1280 Unchecked, 0.9s Time] [2024-11-09 10:16:20,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1400 states. [2024-11-09 10:16:20,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1400 to 1198. [2024-11-09 10:16:20,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1198 states, 781 states have (on average 1.8104993597951344) internal successors, (1414), 1193 states have internal predecessors, (1414), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:20,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1420 transitions. [2024-11-09 10:16:20,978 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1420 transitions. Word has length 15 [2024-11-09 10:16:20,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:20,979 INFO L471 AbstractCegarLoop]: Abstraction has 1198 states and 1420 transitions. [2024-11-09 10:16:20,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-09 10:16:20,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1420 transitions. [2024-11-09 10:16:20,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 10:16:20,979 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:20,979 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:20,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:21,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/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 [2024-11-09 10:16:21,180 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr421REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:21,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:21,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1512073534, now seen corresponding path program 1 times [2024-11-09 10:16:21,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:21,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453499059] [2024-11-09 10:16:21,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:21,185 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 [2024-11-09 10:16:21,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:21,187 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/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) [2024-11-09 10:16:21,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:21,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:21,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 10:16:21,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:21,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:21,340 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:21,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:21,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453499059] [2024-11-09 10:16:21,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453499059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:21,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:21,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:16:21,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156582828] [2024-11-09 10:16:21,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:21,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:21,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:21,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:21,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:21,342 INFO L87 Difference]: Start difference. First operand 1198 states and 1420 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-09 10:16:21,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:21,730 INFO L93 Difference]: Finished difference Result 1442 states and 1623 transitions. [2024-11-09 10:16:21,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:16:21,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2024-11-09 10:16:21,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:21,733 INFO L225 Difference]: With dead ends: 1442 [2024-11-09 10:16:21,734 INFO L226 Difference]: Without dead ends: 1438 [2024-11-09 10:16:21,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:16:21,734 INFO L432 NwaCegarLoop]: 1050 mSDtfsCounter, 425 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:21,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 2890 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 10:16:21,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-09 10:16:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1196. [2024-11-09 10:16:21,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 779 states have (on average 1.8112965340179719) internal successors, (1411), 1191 states have internal predecessors, (1411), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:21,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1417 transitions. [2024-11-09 10:16:21,748 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1417 transitions. Word has length 15 [2024-11-09 10:16:21,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:21,748 INFO L471 AbstractCegarLoop]: Abstraction has 1196 states and 1417 transitions. [2024-11-09 10:16:21,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2024-11-09 10:16:21,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1417 transitions. [2024-11-09 10:16:21,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 10:16:21,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:21,748 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:21,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:21,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/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 [2024-11-09 10:16:21,949 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr354REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:21,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:21,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1297050578, now seen corresponding path program 1 times [2024-11-09 10:16:21,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:21,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844477180] [2024-11-09 10:16:21,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:21,950 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 [2024-11-09 10:16:21,950 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:21,953 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/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) [2024-11-09 10:16:21,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:22,056 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 10:16:22,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:22,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:22,073 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:22,073 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:22,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844477180] [2024-11-09 10:16:22,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844477180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:22,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:22,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:16:22,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68503230] [2024-11-09 10:16:22,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:22,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:22,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:22,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:22,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:22,075 INFO L87 Difference]: Start difference. First operand 1196 states and 1417 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-09 10:16:22,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:22,117 INFO L93 Difference]: Finished difference Result 1158 states and 1330 transitions. [2024-11-09 10:16:22,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:16:22,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2024-11-09 10:16:22,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:22,120 INFO L225 Difference]: With dead ends: 1158 [2024-11-09 10:16:22,120 INFO L226 Difference]: Without dead ends: 1158 [2024-11-09 10:16:22,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:16:22,120 INFO L432 NwaCegarLoop]: 925 mSDtfsCounter, 48 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2749 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:22,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2749 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 10:16:22,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-09 10:16:22,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1158. [2024-11-09 10:16:22,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 755 states have (on average 1.7536423841059603) internal successors, (1324), 1153 states have internal predecessors, (1324), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:22,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1330 transitions. [2024-11-09 10:16:22,132 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1330 transitions. Word has length 16 [2024-11-09 10:16:22,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:22,133 INFO L471 AbstractCegarLoop]: Abstraction has 1158 states and 1330 transitions. [2024-11-09 10:16:22,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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) [2024-11-09 10:16:22,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1330 transitions. [2024-11-09 10:16:22,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 10:16:22,133 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:22,133 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:22,137 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-11-09 10:16:22,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/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 [2024-11-09 10:16:22,335 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:22,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:22,335 INFO L85 PathProgramCache]: Analyzing trace with hash -179577126, now seen corresponding path program 1 times [2024-11-09 10:16:22,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:22,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1360494749] [2024-11-09 10:16:22,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:22,336 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 [2024-11-09 10:16:22,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:22,338 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/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) [2024-11-09 10:16:22,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:22,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:22,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 10:16:22,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:22,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:22,483 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:22,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:22,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1360494749] [2024-11-09 10:16:22,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1360494749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:22,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:22,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:16:22,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190763037] [2024-11-09 10:16:22,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:22,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:16:22,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:22,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:16:22,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:22,485 INFO L87 Difference]: Start difference. First operand 1158 states and 1330 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:22,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:22,504 INFO L93 Difference]: Finished difference Result 1098 states and 1244 transitions. [2024-11-09 10:16:22,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:16:22,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-09 10:16:22,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:22,507 INFO L225 Difference]: With dead ends: 1098 [2024-11-09 10:16:22,507 INFO L226 Difference]: Without dead ends: 1098 [2024-11-09 10:16:22,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:16:22,507 INFO L432 NwaCegarLoop]: 892 mSDtfsCounter, 71 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:22,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 1721 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 10:16:22,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-09 10:16:22,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1098. [2024-11-09 10:16:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 719 states have (on average 1.721835883171071) internal successors, (1238), 1093 states have internal predecessors, (1238), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:22,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1244 transitions. [2024-11-09 10:16:22,518 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1244 transitions. Word has length 19 [2024-11-09 10:16:22,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:22,518 INFO L471 AbstractCegarLoop]: Abstraction has 1098 states and 1244 transitions. [2024-11-09 10:16:22,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:22,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1244 transitions. [2024-11-09 10:16:22,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 10:16:22,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:22,519 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] [2024-11-09 10:16:22,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-11-09 10:16:22,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/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 [2024-11-09 10:16:22,724 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:22,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash -774929132, now seen corresponding path program 1 times [2024-11-09 10:16:22,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:22,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052735687] [2024-11-09 10:16:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:22,725 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 [2024-11-09 10:16:22,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:22,726 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/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) [2024-11-09 10:16:22,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:22,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:22,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 10:16:22,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:22,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:22,861 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:22,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:22,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052735687] [2024-11-09 10:16:22,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1052735687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:22,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:22,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:16:22,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906242690] [2024-11-09 10:16:22,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:22,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:22,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:22,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:22,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:22,863 INFO L87 Difference]: Start difference. First operand 1098 states and 1244 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:22,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:22,921 INFO L93 Difference]: Finished difference Result 1068 states and 1186 transitions. [2024-11-09 10:16:22,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:16:22,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-09 10:16:22,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:22,923 INFO L225 Difference]: With dead ends: 1068 [2024-11-09 10:16:22,924 INFO L226 Difference]: Without dead ends: 1068 [2024-11-09 10:16:22,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:16:22,924 INFO L432 NwaCegarLoop]: 847 mSDtfsCounter, 48 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 2515 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:22,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 2515 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 10:16:22,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2024-11-09 10:16:22,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1068. [2024-11-09 10:16:22,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 703 states have (on average 1.678520625889047) internal successors, (1180), 1063 states have internal predecessors, (1180), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:22,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1186 transitions. [2024-11-09 10:16:22,936 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1186 transitions. Word has length 21 [2024-11-09 10:16:22,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:22,937 INFO L471 AbstractCegarLoop]: Abstraction has 1068 states and 1186 transitions. [2024-11-09 10:16:22,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 10:16:22,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1186 transitions. [2024-11-09 10:16:22,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 10:16:22,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:22,940 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] [2024-11-09 10:16:22,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-11-09 10:16:23,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/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 [2024-11-09 10:16:23,142 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr368REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:23,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:23,142 INFO L85 PathProgramCache]: Analyzing trace with hash 727437120, now seen corresponding path program 1 times [2024-11-09 10:16:23,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:23,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315780621] [2024-11-09 10:16:23,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:23,143 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 [2024-11-09 10:16:23,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:23,145 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/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) [2024-11-09 10:16:23,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:23,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:23,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 10:16:23,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:23,257 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 [2024-11-09 10:16:23,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:23,306 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:23,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:23,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315780621] [2024-11-09 10:16:23,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315780621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:23,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:23,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:16:23,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130830136] [2024-11-09 10:16:23,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:23,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:23,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:23,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:23,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:23,307 INFO L87 Difference]: Start difference. First operand 1068 states and 1186 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-09 10:16:24,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:24,380 INFO L93 Difference]: Finished difference Result 1255 states and 1374 transitions. [2024-11-09 10:16:24,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:16:24,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2024-11-09 10:16:24,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:24,383 INFO L225 Difference]: With dead ends: 1255 [2024-11-09 10:16:24,383 INFO L226 Difference]: Without dead ends: 1255 [2024-11-09 10:16:24,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:16:24,384 INFO L432 NwaCegarLoop]: 528 mSDtfsCounter, 774 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:24,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 1122 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 10:16:24,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-11-09 10:16:24,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1064. [2024-11-09 10:16:24,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 703 states have (on average 1.6614509246088194) internal successors, (1168), 1059 states have internal predecessors, (1168), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:24,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1174 transitions. [2024-11-09 10:16:24,394 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1174 transitions. Word has length 30 [2024-11-09 10:16:24,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:24,395 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1174 transitions. [2024-11-09 10:16:24,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-09 10:16:24,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1174 transitions. [2024-11-09 10:16:24,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 10:16:24,395 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:24,395 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] [2024-11-09 10:16:24,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-11-09 10:16:24,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/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 [2024-11-09 10:16:24,596 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr369REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:24,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:24,596 INFO L85 PathProgramCache]: Analyzing trace with hash 727437121, now seen corresponding path program 1 times [2024-11-09 10:16:24,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:24,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [108596663] [2024-11-09 10:16:24,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:24,597 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 [2024-11-09 10:16:24,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:24,598 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/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) [2024-11-09 10:16:24,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:24,703 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 10:16:24,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:24,722 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 [2024-11-09 10:16:24,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:24,860 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:24,861 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:24,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [108596663] [2024-11-09 10:16:24,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [108596663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:24,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:24,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:16:24,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847801848] [2024-11-09 10:16:24,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:24,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:24,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:24,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:24,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:24,862 INFO L87 Difference]: Start difference. First operand 1064 states and 1174 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-09 10:16:26,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:26,037 INFO L93 Difference]: Finished difference Result 1071 states and 1176 transitions. [2024-11-09 10:16:26,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:16:26,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 30 [2024-11-09 10:16:26,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:26,040 INFO L225 Difference]: With dead ends: 1071 [2024-11-09 10:16:26,040 INFO L226 Difference]: Without dead ends: 1071 [2024-11-09 10:16:26,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:16:26,041 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 79 mSDsluCounter, 899 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1752 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:26,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1752 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 10:16:26,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-09 10:16:26,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1064. [2024-11-09 10:16:26,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 703 states have (on average 1.6557610241820768) internal successors, (1164), 1059 states have internal predecessors, (1164), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:26,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1170 transitions. [2024-11-09 10:16:26,049 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1170 transitions. Word has length 30 [2024-11-09 10:16:26,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:26,049 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1170 transitions. [2024-11-09 10:16:26,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-11-09 10:16:26,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1170 transitions. [2024-11-09 10:16:26,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 10:16:26,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:26,050 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] [2024-11-09 10:16:26,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-11-09 10:16:26,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/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 [2024-11-09 10:16:26,251 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:26,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:26,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1929064798, now seen corresponding path program 1 times [2024-11-09 10:16:26,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:26,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45654973] [2024-11-09 10:16:26,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:26,252 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 [2024-11-09 10:16:26,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:26,254 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/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) [2024-11-09 10:16:26,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:26,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 10:16:26,389 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:26,392 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 [2024-11-09 10:16:26,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:26,446 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:26,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:26,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45654973] [2024-11-09 10:16:26,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45654973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:26,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:26,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:16:26,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021402854] [2024-11-09 10:16:26,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:26,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:26,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:26,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:26,450 INFO L87 Difference]: Start difference. First operand 1064 states and 1170 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-09 10:16:27,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:27,455 INFO L93 Difference]: Finished difference Result 1071 states and 1172 transitions. [2024-11-09 10:16:27,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:16:27,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2024-11-09 10:16:27,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:27,458 INFO L225 Difference]: With dead ends: 1071 [2024-11-09 10:16:27,458 INFO L226 Difference]: Without dead ends: 1071 [2024-11-09 10:16:27,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:16:27,458 INFO L432 NwaCegarLoop]: 613 mSDtfsCounter, 600 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 1231 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:27,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [603 Valid, 1231 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 914 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 10:16:27,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-09 10:16:27,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1060. [2024-11-09 10:16:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1060 states, 703 states have (on average 1.6443812233285917) internal successors, (1156), 1055 states have internal predecessors, (1156), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:27,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1162 transitions. [2024-11-09 10:16:27,468 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1162 transitions. Word has length 35 [2024-11-09 10:16:27,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:27,468 INFO L471 AbstractCegarLoop]: Abstraction has 1060 states and 1162 transitions. [2024-11-09 10:16:27,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-09 10:16:27,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1162 transitions. [2024-11-09 10:16:27,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 10:16:27,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:27,469 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] [2024-11-09 10:16:27,474 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Ended with exit code 0 [2024-11-09 10:16:27,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/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 [2024-11-09 10:16:27,669 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:27,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:27,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1929064797, now seen corresponding path program 1 times [2024-11-09 10:16:27,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:27,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [420611807] [2024-11-09 10:16:27,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:27,670 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 [2024-11-09 10:16:27,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:27,671 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/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) [2024-11-09 10:16:27,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:27,805 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 10:16:27,807 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:27,819 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 [2024-11-09 10:16:27,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:27,945 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:27,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:27,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [420611807] [2024-11-09 10:16:27,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [420611807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:27,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:27,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:16:27,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873549009] [2024-11-09 10:16:27,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:27,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:27,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:27,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:27,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:27,947 INFO L87 Difference]: Start difference. First operand 1060 states and 1162 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-09 10:16:29,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:29,423 INFO L93 Difference]: Finished difference Result 1317 states and 1404 transitions. [2024-11-09 10:16:29,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:16:29,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2024-11-09 10:16:29,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:29,427 INFO L225 Difference]: With dead ends: 1317 [2024-11-09 10:16:29,427 INFO L226 Difference]: Without dead ends: 1317 [2024-11-09 10:16:29,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:16:29,428 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 347 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 1020 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 1023 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1020 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:29,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1901 Invalid, 1023 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1020 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 10:16:29,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2024-11-09 10:16:29,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1056. [2024-11-09 10:16:29,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1056 states, 703 states have (on average 1.6330014224751066) internal successors, (1148), 1051 states have internal predecessors, (1148), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:29,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1154 transitions. [2024-11-09 10:16:29,436 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1154 transitions. Word has length 35 [2024-11-09 10:16:29,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:29,437 INFO L471 AbstractCegarLoop]: Abstraction has 1056 states and 1154 transitions. [2024-11-09 10:16:29,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 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) [2024-11-09 10:16:29,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1154 transitions. [2024-11-09 10:16:29,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 10:16:29,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:29,438 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] [2024-11-09 10:16:29,443 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-11-09 10:16:29,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/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 [2024-11-09 10:16:29,639 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr414ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:29,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:29,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1556225793, now seen corresponding path program 1 times [2024-11-09 10:16:29,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:29,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1757086587] [2024-11-09 10:16:29,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:29,640 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 [2024-11-09 10:16:29,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:29,643 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/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) [2024-11-09 10:16:29,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:29,774 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 10:16:29,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:29,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:29,804 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:29,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:29,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1757086587] [2024-11-09 10:16:29,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1757086587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:29,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:29,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:16:29,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750891965] [2024-11-09 10:16:29,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:29,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:29,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:29,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:29,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:29,805 INFO L87 Difference]: Start difference. First operand 1056 states and 1154 transitions. Second operand has 4 states, 4 states have (on average 12.5) 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) [2024-11-09 10:16:29,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:29,842 INFO L93 Difference]: Finished difference Result 1038 states and 1124 transitions. [2024-11-09 10:16:29,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:16:29,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) 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 [2024-11-09 10:16:29,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:29,845 INFO L225 Difference]: With dead ends: 1038 [2024-11-09 10:16:29,845 INFO L226 Difference]: Without dead ends: 1038 [2024-11-09 10:16:29,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:16:29,845 INFO L432 NwaCegarLoop]: 837 mSDtfsCounter, 27 mSDsluCounter, 1637 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 2474 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:29,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 2474 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 10:16:29,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2024-11-09 10:16:29,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1038. [2024-11-09 10:16:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 685 states have (on average 1.6321167883211678) internal successors, (1118), 1033 states have internal predecessors, (1118), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:29,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1124 transitions. [2024-11-09 10:16:29,854 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1124 transitions. Word has length 50 [2024-11-09 10:16:29,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:29,855 INFO L471 AbstractCegarLoop]: Abstraction has 1038 states and 1124 transitions. [2024-11-09 10:16:29,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) 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) [2024-11-09 10:16:29,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1124 transitions. [2024-11-09 10:16:29,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-09 10:16:29,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:29,856 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] [2024-11-09 10:16:29,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:30,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/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 [2024-11-09 10:16:30,056 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:30,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:30,057 INFO L85 PathProgramCache]: Analyzing trace with hash -848059422, now seen corresponding path program 1 times [2024-11-09 10:16:30,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:30,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [422561115] [2024-11-09 10:16:30,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:30,057 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 [2024-11-09 10:16:30,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:30,058 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/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) [2024-11-09 10:16:30,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:30,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 10:16:30,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:30,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:30,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:30,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:30,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [422561115] [2024-11-09 10:16:30,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [422561115] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:30,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:30,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:16:30,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477088251] [2024-11-09 10:16:30,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:30,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:30,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:30,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:30,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:30,244 INFO L87 Difference]: Start difference. First operand 1038 states and 1124 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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) [2024-11-09 10:16:30,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:30,286 INFO L93 Difference]: Finished difference Result 1026 states and 1104 transitions. [2024-11-09 10:16:30,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 10:16:30,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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 [2024-11-09 10:16:30,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:30,289 INFO L225 Difference]: With dead ends: 1026 [2024-11-09 10:16:30,289 INFO L226 Difference]: Without dead ends: 1026 [2024-11-09 10:16:30,289 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:16:30,290 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 21 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 2468 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:30,290 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 2468 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 10:16:30,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1026 states. [2024-11-09 10:16:30,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1026 to 1026. [2024-11-09 10:16:30,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 673 states have (on average 1.6315007429420505) internal successors, (1098), 1021 states have internal predecessors, (1098), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:30,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1104 transitions. [2024-11-09 10:16:30,298 INFO L78 Accepts]: Start accepts. Automaton has 1026 states and 1104 transitions. Word has length 54 [2024-11-09 10:16:30,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:30,298 INFO L471 AbstractCegarLoop]: Abstraction has 1026 states and 1104 transitions. [2024-11-09 10:16:30,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 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) [2024-11-09 10:16:30,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1026 states and 1104 transitions. [2024-11-09 10:16:30,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 10:16:30,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:30,299 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] [2024-11-09 10:16:30,305 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-11-09 10:16:30,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/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 [2024-11-09 10:16:30,500 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr414ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:30,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:30,500 INFO L85 PathProgramCache]: Analyzing trace with hash 619385421, now seen corresponding path program 1 times [2024-11-09 10:16:30,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:30,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [449092467] [2024-11-09 10:16:30,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:30,501 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 [2024-11-09 10:16:30,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:30,502 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/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) [2024-11-09 10:16:30,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2024-11-09 10:16:30,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:30,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 10:16:30,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:30,671 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 10:16:30,672 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 10:16:30,672 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-09 10:16:30,674 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 30 treesize of output 39 [2024-11-09 10:16:30,732 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-09 10:16:30,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-09 10:16:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:30,755 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:30,756 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:30,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [449092467] [2024-11-09 10:16:30,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [449092467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:30,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:30,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 10:16:30,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038037851] [2024-11-09 10:16:30,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:30,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 10:16:30,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 10:16:30,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:16:30,757 INFO L87 Difference]: Start difference. First operand 1026 states and 1104 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2024-11-09 10:16:30,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:30,989 INFO L93 Difference]: Finished difference Result 1498 states and 1597 transitions. [2024-11-09 10:16:30,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:16:30,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 58 [2024-11-09 10:16:30,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:30,993 INFO L225 Difference]: With dead ends: 1498 [2024-11-09 10:16:30,993 INFO L226 Difference]: Without dead ends: 1495 [2024-11-09 10:16:30,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 10:16:30,994 INFO L432 NwaCegarLoop]: 827 mSDtfsCounter, 1769 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1775 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:30,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1775 Valid, 2847 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 10:16:30,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2024-11-09 10:16:31,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 972. [2024-11-09 10:16:31,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 619 states have (on average 1.6833602584814216) internal successors, (1042), 967 states have internal predecessors, (1042), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:31,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1048 transitions. [2024-11-09 10:16:31,005 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1048 transitions. Word has length 58 [2024-11-09 10:16:31,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:31,005 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1048 transitions. [2024-11-09 10:16:31,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2024-11-09 10:16:31,006 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1048 transitions. [2024-11-09 10:16:31,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 10:16:31,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:31,006 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, 1] [2024-11-09 10:16:31,012 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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)] Forceful destruction successful, exit code 0 [2024-11-09 10:16:31,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/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 [2024-11-09 10:16:31,211 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:31,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:31,211 INFO L85 PathProgramCache]: Analyzing trace with hash 887665558, now seen corresponding path program 1 times [2024-11-09 10:16:31,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:31,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1249515090] [2024-11-09 10:16:31,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:31,212 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 [2024-11-09 10:16:31,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:31,213 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/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) [2024-11-09 10:16:31,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (22)] Waiting until timeout for monitored process [2024-11-09 10:16:31,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:31,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 10:16:31,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:31,457 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 [2024-11-09 10:16:31,461 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 [2024-11-09 10:16:31,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 10:16:31,791 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 [2024-11-09 10:16:31,799 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-09 10:16:31,799 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 [2024-11-09 10:16:31,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:31,807 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:31,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:31,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1249515090] [2024-11-09 10:16:31,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1249515090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:31,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:31,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 10:16:31,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962497475] [2024-11-09 10:16:31,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:31,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:31,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:31,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:31,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:31,808 INFO L87 Difference]: Start difference. First operand 972 states and 1048 transitions. Second operand has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-11-09 10:16:32,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:32,685 INFO L93 Difference]: Finished difference Result 934 states and 1010 transitions. [2024-11-09 10:16:32,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:16:32,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2024-11-09 10:16:32,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:32,688 INFO L225 Difference]: With dead ends: 934 [2024-11-09 10:16:32,688 INFO L226 Difference]: Without dead ends: 934 [2024-11-09 10:16:32,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:32,688 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 1044 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1047 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:32,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1047 Valid, 547 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 10:16:32,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-11-09 10:16:32,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 897. [2024-11-09 10:16:32,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 582 states have (on average 1.597938144329897) internal successors, (930), 892 states have internal predecessors, (930), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:32,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 936 transitions. [2024-11-09 10:16:32,696 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 936 transitions. Word has length 62 [2024-11-09 10:16:32,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:32,696 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 936 transitions. [2024-11-09 10:16:32,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.666666666666668) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-11-09 10:16:32,697 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 936 transitions. [2024-11-09 10:16:32,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 10:16:32,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:32,697 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, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:32,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 (22)] Ended with exit code 0 [2024-11-09 10:16:32,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/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 [2024-11-09 10:16:32,898 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:32,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:32,898 INFO L85 PathProgramCache]: Analyzing trace with hash 512421051, now seen corresponding path program 1 times [2024-11-09 10:16:32,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:32,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863848367] [2024-11-09 10:16:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:32,898 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 [2024-11-09 10:16:32,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:32,900 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/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) [2024-11-09 10:16:32,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (23)] Waiting until timeout for monitored process [2024-11-09 10:16:33,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:33,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 10:16:33,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:33,098 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 [2024-11-09 10:16:33,107 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 [2024-11-09 10:16:33,122 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 [2024-11-09 10:16:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:33,128 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:33,128 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:33,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863848367] [2024-11-09 10:16:33,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863848367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:33,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:33,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:16:33,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398422375] [2024-11-09 10:16:33,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:33,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:16:33,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:33,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:16:33,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:16:33,130 INFO L87 Difference]: Start difference. First operand 897 states and 936 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-09 10:16:34,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:34,315 INFO L93 Difference]: Finished difference Result 896 states and 935 transitions. [2024-11-09 10:16:34,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:16:34,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-09 10:16:34,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:34,319 INFO L225 Difference]: With dead ends: 896 [2024-11-09 10:16:34,319 INFO L226 Difference]: Without dead ends: 896 [2024-11-09 10:16:34,320 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:16:34,320 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 2 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:34,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2079 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 10:16:34,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2024-11-09 10:16:34,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2024-11-09 10:16:34,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 582 states have (on average 1.5962199312714778) internal successors, (929), 891 states have internal predecessors, (929), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:34,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 935 transitions. [2024-11-09 10:16:34,330 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 935 transitions. Word has length 67 [2024-11-09 10:16:34,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:34,330 INFO L471 AbstractCegarLoop]: Abstraction has 896 states and 935 transitions. [2024-11-09 10:16:34,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-09 10:16:34,330 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 935 transitions. [2024-11-09 10:16:34,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 10:16:34,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:34,331 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, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:34,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (23)] Forceful destruction successful, exit code 0 [2024-11-09 10:16:34,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/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 [2024-11-09 10:16:34,531 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:34,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:34,532 INFO L85 PathProgramCache]: Analyzing trace with hash 512421052, now seen corresponding path program 1 times [2024-11-09 10:16:34,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:34,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87757875] [2024-11-09 10:16:34,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:34,532 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 [2024-11-09 10:16:34,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:34,533 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/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) [2024-11-09 10:16:34,534 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (24)] Waiting until timeout for monitored process [2024-11-09 10:16:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:34,730 INFO L255 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 10:16:34,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:34,739 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 [2024-11-09 10:16:34,750 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 [2024-11-09 10:16:34,754 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 [2024-11-09 10:16:34,782 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 [2024-11-09 10:16:34,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:34,795 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:34,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:34,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87757875] [2024-11-09 10:16:34,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [87757875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:34,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:34,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:16:34,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065212805] [2024-11-09 10:16:34,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:34,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 10:16:34,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:34,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 10:16:34,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 10:16:34,796 INFO L87 Difference]: Start difference. First operand 896 states and 935 transitions. Second operand has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-09 10:16:36,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:36,258 INFO L93 Difference]: Finished difference Result 895 states and 934 transitions. [2024-11-09 10:16:36,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 10:16:36,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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 67 [2024-11-09 10:16:36,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:36,260 INFO L225 Difference]: With dead ends: 895 [2024-11-09 10:16:36,260 INFO L226 Difference]: Without dead ends: 895 [2024-11-09 10:16:36,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 10:16:36,261 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 1 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 1128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2100 SdHoareTripleChecker+Invalid, 1129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:36,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2100 Invalid, 1129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1128 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 10:16:36,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2024-11-09 10:16:36,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2024-11-09 10:16:36,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 581 states have (on average 1.5972461273666092) internal successors, (928), 890 states have internal predecessors, (928), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 10:16:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 934 transitions. [2024-11-09 10:16:36,269 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 934 transitions. Word has length 67 [2024-11-09 10:16:36,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:36,269 INFO L471 AbstractCegarLoop]: Abstraction has 895 states and 934 transitions. [2024-11-09 10:16:36,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.75) internal successors, (67), 5 states have internal predecessors, (67), 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) [2024-11-09 10:16:36,269 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 934 transitions. [2024-11-09 10:16:36,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 10:16:36,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:36,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:36,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (24)] Forceful destruction successful, exit code 0 [2024-11-09 10:16:36,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/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 [2024-11-09 10:16:36,471 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:36,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:36,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1994563710, now seen corresponding path program 1 times [2024-11-09 10:16:36,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:36,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060745397] [2024-11-09 10:16:36,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:36,472 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 [2024-11-09 10:16:36,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:36,473 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/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) [2024-11-09 10:16:36,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (25)] Waiting until timeout for monitored process [2024-11-09 10:16:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:36,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 10:16:36,687 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:36,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:36,700 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 10:16:36,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:36,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060745397] [2024-11-09 10:16:36,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060745397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:16:36,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:16:36,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 10:16:36,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95869351] [2024-11-09 10:16:36,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:16:36,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:16:36,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:36,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:16:36,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:36,702 INFO L87 Difference]: Start difference. First operand 895 states and 934 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-11-09 10:16:36,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:36,726 INFO L93 Difference]: Finished difference Result 898 states and 938 transitions. [2024-11-09 10:16:36,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:16:36,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 75 [2024-11-09 10:16:36,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:36,729 INFO L225 Difference]: With dead ends: 898 [2024-11-09 10:16:36,730 INFO L226 Difference]: Without dead ends: 898 [2024-11-09 10:16:36,730 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:16:36,730 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 0 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:36,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2413 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 10:16:36,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2024-11-09 10:16:36,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2024-11-09 10:16:36,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 583 states have (on average 1.5969125214408233) internal successors, (931), 893 states have internal predecessors, (931), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 10:16:36,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 938 transitions. [2024-11-09 10:16:36,748 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 938 transitions. Word has length 75 [2024-11-09 10:16:36,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:36,749 INFO L471 AbstractCegarLoop]: Abstraction has 898 states and 938 transitions. [2024-11-09 10:16:36,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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) [2024-11-09 10:16:36,749 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 938 transitions. [2024-11-09 10:16:36,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 10:16:36,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:36,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:36,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 (25)] Ended with exit code 0 [2024-11-09 10:16:36,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/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 [2024-11-09 10:16:36,950 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:36,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:36,951 INFO L85 PathProgramCache]: Analyzing trace with hash -709775317, now seen corresponding path program 1 times [2024-11-09 10:16:36,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:36,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419661370] [2024-11-09 10:16:36,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:16:36,951 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 [2024-11-09 10:16:36,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:36,954 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/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) [2024-11-09 10:16:36,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (26)] Waiting until timeout for monitored process [2024-11-09 10:16:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:16:37,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 10:16:37,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:37,172 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:37,172 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:16:37,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:37,216 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:37,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419661370] [2024-11-09 10:16:37,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419661370] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:16:37,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 10:16:37,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-09 10:16:37,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45928472] [2024-11-09 10:16:37,216 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 10:16:37,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 10:16:37,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:37,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 10:16:37,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 10:16:37,217 INFO L87 Difference]: Start difference. First operand 898 states and 938 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2024-11-09 10:16:37,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:37,300 INFO L93 Difference]: Finished difference Result 910 states and 955 transitions. [2024-11-09 10:16:37,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 10:16:37,305 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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 76 [2024-11-09 10:16:37,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:37,309 INFO L225 Difference]: With dead ends: 910 [2024-11-09 10:16:37,309 INFO L226 Difference]: Without dead ends: 910 [2024-11-09 10:16:37,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-09 10:16:37,310 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 8 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:37,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2416 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 10:16:37,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 910 states. [2024-11-09 10:16:37,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 908. [2024-11-09 10:16:37,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 908 states, 592 states have (on average 1.597972972972973) internal successors, (946), 902 states have internal predecessors, (946), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 10:16:37,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 953 transitions. [2024-11-09 10:16:37,328 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 953 transitions. Word has length 76 [2024-11-09 10:16:37,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:37,329 INFO L471 AbstractCegarLoop]: Abstraction has 908 states and 953 transitions. [2024-11-09 10:16:37,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2024-11-09 10:16:37,329 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 953 transitions. [2024-11-09 10:16:37,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 10:16:37,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:37,329 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:37,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 (26)] Ended with exit code 0 [2024-11-09 10:16:37,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/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 [2024-11-09 10:16:37,530 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:37,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:37,530 INFO L85 PathProgramCache]: Analyzing trace with hash 872464834, now seen corresponding path program 2 times [2024-11-09 10:16:37,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:37,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1998958141] [2024-11-09 10:16:37,531 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 10:16:37,531 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 [2024-11-09 10:16:37,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:37,532 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/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) [2024-11-09 10:16:37,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (27)] Waiting until timeout for monitored process [2024-11-09 10:16:37,875 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 10:16:37,875 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:16:37,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 10:16:37,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:37,923 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:37,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:16:38,034 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:38,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:38,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1998958141] [2024-11-09 10:16:38,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1998958141] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:16:38,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 10:16:38,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-09 10:16:38,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127447303] [2024-11-09 10:16:38,035 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 10:16:38,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 10:16:38,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:38,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 10:16:38,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-09 10:16:38,037 INFO L87 Difference]: Start difference. First operand 908 states and 953 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 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) [2024-11-09 10:16:38,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:38,351 INFO L93 Difference]: Finished difference Result 923 states and 975 transitions. [2024-11-09 10:16:38,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 10:16:38,352 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 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 79 [2024-11-09 10:16:38,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:38,354 INFO L225 Difference]: With dead ends: 923 [2024-11-09 10:16:38,354 INFO L226 Difference]: Without dead ends: 919 [2024-11-09 10:16:38,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-09 10:16:38,355 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 14 mSDsluCounter, 5621 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6427 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:38,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6427 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 10:16:38,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-09 10:16:38,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 917. [2024-11-09 10:16:38,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 601 states have (on average 1.5940099833610648) internal successors, (958), 911 states have internal predecessors, (958), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 10:16:38,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 965 transitions. [2024-11-09 10:16:38,374 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 965 transitions. Word has length 79 [2024-11-09 10:16:38,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:38,374 INFO L471 AbstractCegarLoop]: Abstraction has 917 states and 965 transitions. [2024-11-09 10:16:38,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 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) [2024-11-09 10:16:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 965 transitions. [2024-11-09 10:16:38,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 10:16:38,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:38,375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:38,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 (27)] Ended with exit code 0 [2024-11-09 10:16:38,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/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 [2024-11-09 10:16:38,576 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:38,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:38,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1407452894, now seen corresponding path program 3 times [2024-11-09 10:16:38,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:38,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1504977858] [2024-11-09 10:16:38,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 10:16:38,577 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 [2024-11-09 10:16:38,577 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:38,578 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/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) [2024-11-09 10:16:38,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (28)] Waiting until timeout for monitored process [2024-11-09 10:16:39,213 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-09 10:16:39,213 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:16:39,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 10:16:39,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:39,330 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:16:39,705 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:39,705 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:39,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1504977858] [2024-11-09 10:16:39,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1504977858] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:16:39,705 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 10:16:39,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-09 10:16:39,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39414677] [2024-11-09 10:16:39,705 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 10:16:39,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 10:16:39,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:39,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 10:16:39,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-09 10:16:39,707 INFO L87 Difference]: Start difference. First operand 917 states and 965 transitions. Second operand has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 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) [2024-11-09 10:16:40,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:40,803 INFO L93 Difference]: Finished difference Result 941 states and 1004 transitions. [2024-11-09 10:16:40,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-09 10:16:40,804 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 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 85 [2024-11-09 10:16:40,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:40,807 INFO L225 Difference]: With dead ends: 941 [2024-11-09 10:16:40,807 INFO L226 Difference]: Without dead ends: 935 [2024-11-09 10:16:40,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 10:16:40,808 INFO L432 NwaCegarLoop]: 807 mSDtfsCounter, 18 mSDsluCounter, 8845 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 9652 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:40,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 9652 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 10:16:40,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states. [2024-11-09 10:16:40,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 935. [2024-11-09 10:16:40,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 935 states, 619 states have (on average 1.5848142164781907) internal successors, (981), 929 states have internal predecessors, (981), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 10:16:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 988 transitions. [2024-11-09 10:16:40,825 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 988 transitions. Word has length 85 [2024-11-09 10:16:40,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:40,826 INFO L471 AbstractCegarLoop]: Abstraction has 935 states and 988 transitions. [2024-11-09 10:16:40,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 26 states have internal predecessors, (96), 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) [2024-11-09 10:16:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 988 transitions. [2024-11-09 10:16:40,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 10:16:40,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:40,826 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:40,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (28)] Forceful destruction successful, exit code 0 [2024-11-09 10:16:41,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/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 [2024-11-09 10:16:41,027 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:41,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:41,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1881886690, now seen corresponding path program 4 times [2024-11-09 10:16:41,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:41,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1273619401] [2024-11-09 10:16:41,028 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 10:16:41,028 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 [2024-11-09 10:16:41,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:41,031 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/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) [2024-11-09 10:16:41,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (29)] Waiting until timeout for monitored process [2024-11-09 10:16:41,421 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 10:16:41,422 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:16:41,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 10:16:41,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:41,736 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:41,736 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:16:42,649 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:16:42,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:42,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1273619401] [2024-11-09 10:16:42,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1273619401] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 10:16:42,650 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 10:16:42,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-09 10:16:42,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99568120] [2024-11-09 10:16:42,650 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 10:16:42,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-09 10:16:42,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-09 10:16:42,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-09 10:16:42,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-09 10:16:42,652 INFO L87 Difference]: Start difference. First operand 935 states and 988 transitions. Second operand has 50 states, 50 states have (on average 2.4) internal successors, (120), 50 states have internal predecessors, (120), 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) [2024-11-09 10:16:46,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 10:16:46,520 INFO L93 Difference]: Finished difference Result 975 states and 1060 transitions. [2024-11-09 10:16:46,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-09 10:16:46,520 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.4) internal successors, (120), 50 states have internal predecessors, (120), 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 97 [2024-11-09 10:16:46,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 10:16:46,522 INFO L225 Difference]: With dead ends: 975 [2024-11-09 10:16:46,522 INFO L226 Difference]: Without dead ends: 971 [2024-11-09 10:16:46,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-09 10:16:46,524 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 49 mSDsluCounter, 20074 mSDsCounter, 0 mSdLazyCounter, 1939 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 10:16:46,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 20880 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1939 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 10:16:46,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2024-11-09 10:16:46,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 969. [2024-11-09 10:16:46,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 969 states, 653 states have (on average 1.5727411944869831) internal successors, (1027), 963 states have internal predecessors, (1027), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 10:16:46,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1034 transitions. [2024-11-09 10:16:46,533 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1034 transitions. Word has length 97 [2024-11-09 10:16:46,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 10:16:46,533 INFO L471 AbstractCegarLoop]: Abstraction has 969 states and 1034 transitions. [2024-11-09 10:16:46,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.4) internal successors, (120), 50 states have internal predecessors, (120), 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) [2024-11-09 10:16:46,534 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1034 transitions. [2024-11-09 10:16:46,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-09 10:16:46,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 10:16:46,535 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:16:46,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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 (29)] Forceful destruction successful, exit code 0 [2024-11-09 10:16:46,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/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 [2024-11-09 10:16:46,735 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 522 more)] === [2024-11-09 10:16:46,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:16:46,736 INFO L85 PathProgramCache]: Analyzing trace with hash 834582594, now seen corresponding path program 5 times [2024-11-09 10:16:46,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-09 10:16:46,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892821784] [2024-11-09 10:16:46,737 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 10:16:46,737 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 [2024-11-09 10:16:46,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-09 10:16:46,738 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/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) [2024-11-09 10:16:46,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 (30)] Waiting until timeout for monitored process [2024-11-09 10:16:47,853 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-09 10:16:47,854 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 10:16:47,876 INFO L255 TraceCheckSpWp]: Trace formula consists of 816 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-09 10:16:47,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 10:16:47,887 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 [2024-11-09 10:16:47,972 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-09 10:16:47,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-09 10:16:47,991 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 [2024-11-09 10:16:48,074 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 24 treesize of output 12 [2024-11-09 10:16:48,687 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-09 10:16:48,687 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 44 treesize of output 43 [2024-11-09 10:16:48,721 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 33 treesize of output 15 [2024-11-09 10:16:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-09 10:16:48,747 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 10:16:49,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-09 10:16:49,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892821784] [2024-11-09 10:16:49,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892821784] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 10:16:49,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [799967707] [2024-11-09 10:16:49,006 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 10:16:49,006 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 10:16:49,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-09 10:16:49,008 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 10:16:49,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process