./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3289d67d 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_FNV_test5-3.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 a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 02:48:04,996 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 02:48:05,058 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 02:48:05,063 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 02:48:05,064 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 02:48:05,103 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 02:48:05,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 02:48:05,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 02:48:05,106 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 02:48:05,107 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 02:48:05,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 02:48:05,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 02:48:05,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 02:48:05,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 02:48:05,110 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 02:48:05,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 02:48:05,110 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 02:48:05,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 02:48:05,111 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 02:48:05,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 02:48:05,111 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 02:48:05,114 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 02:48:05,114 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 02:48:05,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 02:48:05,115 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 02:48:05,115 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 02:48:05,115 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 02:48:05,115 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 02:48:05,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 02:48:05,116 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 02:48:05,116 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 02:48:05,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 02:48:05,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 02:48:05,116 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:48:05,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 02:48:05,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 02:48:05,117 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 02:48:05,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 02:48:05,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 02:48:05,117 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 02:48:05,119 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 02:48:05,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 02:48:05,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2024-11-17 02:48:05,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 02:48:05,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 02:48:05,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 02:48:05,408 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 02:48:05,409 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 02:48:05,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2024-11-17 02:48:06,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 02:48:06,968 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 02:48:06,970 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2024-11-17 02:48:06,986 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1093d248e/d4a0bc5b19d04ff98a6c7ee1e8aa7a57/FLAGbe40ad365 [2024-11-17 02:48:07,268 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1093d248e/d4a0bc5b19d04ff98a6c7ee1e8aa7a57 [2024-11-17 02:48:07,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 02:48:07,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 02:48:07,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 02:48:07,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 02:48:07,277 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 02:48:07,277 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:48:07" (1/1) ... [2024-11-17 02:48:07,278 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@418a5d99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:07, skipping insertion in model container [2024-11-17 02:48:07,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:48:07" (1/1) ... [2024-11-17 02:48:07,322 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:48:07,673 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,705 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,710 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,714 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,722 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,752 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,756 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,760 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,768 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,793 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,797 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,799 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,799 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,800 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,803 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,804 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,805 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,807 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,810 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,813 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,814 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,814 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,816 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:07,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:48:07,837 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) [2024-11-17 02:48:07,838 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39fb2080 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:07, skipping insertion in model container [2024-11-17 02:48:07,838 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 02:48:07,838 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-17 02:48:07,840 INFO L158 Benchmark]: Toolchain (without parser) took 568.24ms. Allocated memory is still 192.9MB. Free memory was 160.1MB in the beginning and 131.5MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-17 02:48:07,840 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 192.9MB. Free memory is still 159.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 02:48:07,841 INFO L158 Benchmark]: CACSL2BoogieTranslator took 566.58ms. Allocated memory is still 192.9MB. Free memory was 160.1MB in the beginning and 131.5MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-17 02:48:07,842 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 192.9MB. Free memory is still 159.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 566.58ms. Allocated memory is still 192.9MB. Free memory was 160.1MB in the beginning and 131.5MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 760]: 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_FNV_test5-3.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 a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 02:48:09,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 02:48:09,715 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-17 02:48:09,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 02:48:09,723 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 02:48:09,746 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 02:48:09,748 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 02:48:09,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 02:48:09,749 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 02:48:09,750 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 02:48:09,751 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 02:48:09,751 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 02:48:09,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 02:48:09,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 02:48:09,752 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 02:48:09,754 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 02:48:09,755 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 02:48:09,755 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 02:48:09,755 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 02:48:09,755 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 02:48:09,755 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 02:48:09,756 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 02:48:09,756 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 02:48:09,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 02:48:09,757 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 02:48:09,757 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-17 02:48:09,757 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 02:48:09,758 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-17 02:48:09,758 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 02:48:09,758 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 02:48:09,759 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 02:48:09,759 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 02:48:09,759 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 02:48:09,760 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 02:48:09,760 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 02:48:09,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:48:09,761 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 02:48:09,761 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 02:48:09,761 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-17 02:48:09,761 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-17 02:48:09,761 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 02:48:09,762 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 02:48:09,762 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 02:48:09,762 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 02:48:09,762 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a37ff9cc75e7eb9f5325f8fa274b6f05ade1742d661d8f4c826631afb9b4bde2 [2024-11-17 02:48:10,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 02:48:10,047 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 02:48:10,059 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 02:48:10,064 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 02:48:10,065 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 02:48:10,066 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2024-11-17 02:48:11,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 02:48:11,646 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 02:48:11,647 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test5-3.i [2024-11-17 02:48:11,663 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58145a589/df62163a9d8646d8ac7b01d81f7c4dcd/FLAG88fa4d68c [2024-11-17 02:48:11,677 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58145a589/df62163a9d8646d8ac7b01d81f7c4dcd [2024-11-17 02:48:11,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 02:48:11,679 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 02:48:11,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 02:48:11,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 02:48:11,684 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 02:48:11,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:48:11" (1/1) ... [2024-11-17 02:48:11,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ba9a44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:11, skipping insertion in model container [2024-11-17 02:48:11,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:48:11" (1/1) ... [2024-11-17 02:48:11,743 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:48:12,069 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,102 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,108 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,112 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,120 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,152 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,158 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,159 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,165 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,195 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,196 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,199 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,200 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,204 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,206 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,207 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,209 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,209 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,216 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,216 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,217 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,236 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,240 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:48:12,260 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-17 02:48:12,267 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:48:12,288 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,302 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,303 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,308 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,310 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,320 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,321 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,322 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,323 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,331 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,332 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,333 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,333 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,334 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,335 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,336 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,336 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,336 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,338 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,339 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,339 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,339 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,341 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-17 02:48:12,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:48:12,348 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 02:48:12,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:48:12,468 INFO L204 MainTranslator]: Completed translation [2024-11-17 02:48:12,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12 WrapperNode [2024-11-17 02:48:12,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 02:48:12,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 02:48:12,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 02:48:12,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 02:48:12,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,571 INFO L138 Inliner]: procedures = 180, calls = 474, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1704 [2024-11-17 02:48:12,572 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 02:48:12,572 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 02:48:12,572 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 02:48:12,573 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 02:48:12,582 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,592 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,718 INFO L175 MemorySlicer]: Split 443 memory accesses to 3 slices as follows [2, 417, 24]. 94 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 99 writes are split as follows [0, 98, 1]. [2024-11-17 02:48:12,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,769 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,773 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,789 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 02:48:12,805 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 02:48:12,805 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 02:48:12,805 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 02:48:12,806 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (1/1) ... [2024-11-17 02:48:12,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:48:12,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:48:12,837 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) [2024-11-17 02:48:12,841 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 [2024-11-17 02:48:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-17 02:48:12,880 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-17 02:48:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-17 02:48:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-17 02:48:12,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-17 02:48:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-17 02:48:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-17 02:48:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-17 02:48:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 02:48:12,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 02:48:12,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-17 02:48:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-17 02:48:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-17 02:48:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 02:48:12,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-17 02:48:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-17 02:48:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-17 02:48:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-17 02:48:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-17 02:48:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-17 02:48:12,883 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 02:48:12,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 02:48:13,104 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 02:48:13,105 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 02:48:17,070 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: call ULTIMATE.dealloc(main_~#j~0#1.base, main_~#j~0#1.offset);havoc main_~#j~0#1.base, main_~#j~0#1.offset; [2024-11-17 02:48:17,200 INFO L? ?]: Removed 1906 outVars from TransFormulas that were not future-live. [2024-11-17 02:48:17,200 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 02:48:17,243 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 02:48:17,243 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 02:48:17,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 02:48:17 BoogieIcfgContainer [2024-11-17 02:48:17,244 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 02:48:17,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 02:48:17,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 02:48:17,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 02:48:17,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 02:48:11" (1/3) ... [2024-11-17 02:48:17,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b491aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:48:17, skipping insertion in model container [2024-11-17 02:48:17,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:48:12" (2/3) ... [2024-11-17 02:48:17,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b491aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:48:17, skipping insertion in model container [2024-11-17 02:48:17,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 02:48:17" (3/3) ... [2024-11-17 02:48:17,250 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test5-3.i [2024-11-17 02:48:17,261 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 02:48:17,262 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 915 error locations. [2024-11-17 02:48:17,313 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 02:48:17,318 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;@656d8c0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 02:48:17,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 915 error locations. [2024-11-17 02:48:17,325 INFO L276 IsEmpty]: Start isEmpty. Operand has 1865 states, 939 states have (on average 2.1831735889243875) internal successors, (2050), 1855 states have internal predecessors, (2050), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-17 02:48:17,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 02:48:17,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:17,330 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 02:48:17,330 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr912REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:17,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:17,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1856517027, now seen corresponding path program 1 times [2024-11-17 02:48:17,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:17,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867481479] [2024-11-17 02:48:17,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:17,345 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 [2024-11-17 02:48:17,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:17,351 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) [2024-11-17 02:48:17,364 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 [2024-11-17 02:48:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:17,518 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-17 02:48:17,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:17,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:17,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:17,528 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:17,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867481479] [2024-11-17 02:48:17,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867481479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:17,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:17,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:48:17,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480837177] [2024-11-17 02:48:17,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:17,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-17 02:48:17,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:17,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-17 02:48:17,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 02:48:17,557 INFO L87 Difference]: Start difference. First operand has 1865 states, 939 states have (on average 2.1831735889243875) internal successors, (2050), 1855 states have internal predecessors, (2050), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:17,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:17,614 INFO L93 Difference]: Finished difference Result 1843 states and 1944 transitions. [2024-11-17 02:48:17,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-17 02:48:17,616 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-17 02:48:17,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:17,634 INFO L225 Difference]: With dead ends: 1843 [2024-11-17 02:48:17,635 INFO L226 Difference]: Without dead ends: 1840 [2024-11-17 02:48:17,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-17 02:48:17,638 INFO L432 NwaCegarLoop]: 1944 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:17,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:48:17,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1840 states. [2024-11-17 02:48:17,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1840 to 1840. [2024-11-17 02:48:17,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1840 states, 926 states have (on average 2.070194384449244) internal successors, (1917), 1830 states have internal predecessors, (1917), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:17,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1840 states to 1840 states and 1941 transitions. [2024-11-17 02:48:17,719 INFO L78 Accepts]: Start accepts. Automaton has 1840 states and 1941 transitions. Word has length 6 [2024-11-17 02:48:17,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:17,719 INFO L471 AbstractCegarLoop]: Abstraction has 1840 states and 1941 transitions. [2024-11-17 02:48:17,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:17,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1840 states and 1941 transitions. [2024-11-17 02:48:17,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 02:48:17,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:17,720 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 02:48:17,726 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 [2024-11-17 02:48:17,925 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 [2024-11-17 02:48:17,926 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr912REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:17,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:17,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1856516996, now seen corresponding path program 1 times [2024-11-17 02:48:17,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:17,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281193555] [2024-11-17 02:48:17,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:17,929 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 [2024-11-17 02:48:17,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:17,934 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) [2024-11-17 02:48:17,935 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 [2024-11-17 02:48:18,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:18,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:48:18,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:18,186 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 [2024-11-17 02:48:18,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:18,203 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:18,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:18,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1281193555] [2024-11-17 02:48:18,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1281193555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:18,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:18,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:48:18,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220639012] [2024-11-17 02:48:18,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:18,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:18,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:18,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:18,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:18,206 INFO L87 Difference]: Start difference. First operand 1840 states and 1941 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:20,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:20,386 INFO L93 Difference]: Finished difference Result 1984 states and 2117 transitions. [2024-11-17 02:48:20,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:20,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-17 02:48:20,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:20,398 INFO L225 Difference]: With dead ends: 1984 [2024-11-17 02:48:20,398 INFO L226 Difference]: Without dead ends: 1984 [2024-11-17 02:48:20,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:20,403 INFO L432 NwaCegarLoop]: 1412 mSDtfsCounter, 1290 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1301 SdHoareTripleChecker+Valid, 1802 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:20,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1301 Valid, 1802 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-17 02:48:20,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1984 states. [2024-11-17 02:48:20,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1984 to 1748. [2024-11-17 02:48:20,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 926 states have (on average 1.970842332613391) internal successors, (1825), 1738 states have internal predecessors, (1825), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:20,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 1849 transitions. [2024-11-17 02:48:20,450 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 1849 transitions. Word has length 6 [2024-11-17 02:48:20,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:20,454 INFO L471 AbstractCegarLoop]: Abstraction has 1748 states and 1849 transitions. [2024-11-17 02:48:20,454 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:20,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 1849 transitions. [2024-11-17 02:48:20,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-17 02:48:20,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:20,455 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 02:48:20,461 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 [2024-11-17 02:48:20,655 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 [2024-11-17 02:48:20,655 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr913REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:20,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:20,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1856516995, now seen corresponding path program 1 times [2024-11-17 02:48:20,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:20,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818585377] [2024-11-17 02:48:20,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:20,657 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 [2024-11-17 02:48:20,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:20,664 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) [2024-11-17 02:48:20,665 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 [2024-11-17 02:48:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:20,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:48:20,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:20,804 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 [2024-11-17 02:48:20,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:20,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:20,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:20,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818585377] [2024-11-17 02:48:20,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818585377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:20,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:20,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:48:20,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735280182] [2024-11-17 02:48:20,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:20,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:20,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:20,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:20,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:20,828 INFO L87 Difference]: Start difference. First operand 1748 states and 1849 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:23,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:23,360 INFO L93 Difference]: Finished difference Result 2309 states and 2461 transitions. [2024-11-17 02:48:23,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:23,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-17 02:48:23,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:23,366 INFO L225 Difference]: With dead ends: 2309 [2024-11-17 02:48:23,366 INFO L226 Difference]: Without dead ends: 2309 [2024-11-17 02:48:23,366 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:23,367 INFO L432 NwaCegarLoop]: 1777 mSDtfsCounter, 786 mSDsluCounter, 842 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 2619 SdHoareTripleChecker+Invalid, 1175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:23,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 2619 Invalid, 1175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1150 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-17 02:48:23,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2024-11-17 02:48:23,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 1922. [2024-11-17 02:48:23,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1922 states, 1110 states have (on average 1.9387387387387387) internal successors, (2152), 1912 states have internal predecessors, (2152), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:23,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 2176 transitions. [2024-11-17 02:48:23,406 INFO L78 Accepts]: Start accepts. Automaton has 1922 states and 2176 transitions. Word has length 6 [2024-11-17 02:48:23,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:23,406 INFO L471 AbstractCegarLoop]: Abstraction has 1922 states and 2176 transitions. [2024-11-17 02:48:23,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:23,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states and 2176 transitions. [2024-11-17 02:48:23,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 02:48:23,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:23,407 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:23,419 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 (4)] Forceful destruction successful, exit code 0 [2024-11-17 02:48:23,607 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 [2024-11-17 02:48:23,608 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr292REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:23,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:23,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1743973832, now seen corresponding path program 1 times [2024-11-17 02:48:23,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:23,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [147385266] [2024-11-17 02:48:23,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:23,610 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 [2024-11-17 02:48:23,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:23,613 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) [2024-11-17 02:48:23,617 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 [2024-11-17 02:48:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:23,720 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 02:48:23,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:23,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:23,730 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:23,730 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:23,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [147385266] [2024-11-17 02:48:23,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [147385266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:23,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:23,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:23,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224400969] [2024-11-17 02:48:23,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:23,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:23,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:23,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:23,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:23,732 INFO L87 Difference]: Start difference. First operand 1922 states and 2176 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2024-11-17 02:48:23,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:23,817 INFO L93 Difference]: Finished difference Result 3432 states and 3921 transitions. [2024-11-17 02:48:23,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:23,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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 [2024-11-17 02:48:23,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:23,827 INFO L225 Difference]: With dead ends: 3432 [2024-11-17 02:48:23,827 INFO L226 Difference]: Without dead ends: 3432 [2024-11-17 02:48:23,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:23,828 INFO L432 NwaCegarLoop]: 2110 mSDtfsCounter, 1382 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 3939 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:23,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 3939 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:23,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2024-11-17 02:48:23,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 1926. [2024-11-17 02:48:23,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1926 states, 1114 states have (on average 1.9353680430879712) internal successors, (2156), 1916 states have internal predecessors, (2156), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2180 transitions. [2024-11-17 02:48:23,881 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2180 transitions. Word has length 8 [2024-11-17 02:48:23,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:23,881 INFO L471 AbstractCegarLoop]: Abstraction has 1926 states and 2180 transitions. [2024-11-17 02:48:23,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 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) [2024-11-17 02:48:23,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2180 transitions. [2024-11-17 02:48:23,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-17 02:48:23,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:23,882 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:23,890 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 [2024-11-17 02:48:24,082 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 [2024-11-17 02:48:24,083 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr908REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:24,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:24,083 INFO L85 PathProgramCache]: Analyzing trace with hash -473468332, now seen corresponding path program 1 times [2024-11-17 02:48:24,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:24,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728337012] [2024-11-17 02:48:24,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:24,084 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 [2024-11-17 02:48:24,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:24,086 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) [2024-11-17 02:48:24,087 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 [2024-11-17 02:48:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:24,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 02:48:24,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:24,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:24,246 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:24,246 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:24,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728337012] [2024-11-17 02:48:24,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728337012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:24,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:24,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:24,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158655504] [2024-11-17 02:48:24,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:24,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:24,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:24,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:24,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:24,248 INFO L87 Difference]: Start difference. First operand 1926 states and 2180 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:24,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:24,279 INFO L93 Difference]: Finished difference Result 1884 states and 2137 transitions. [2024-11-17 02:48:24,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:24,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-17 02:48:24,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:24,284 INFO L225 Difference]: With dead ends: 1884 [2024-11-17 02:48:24,284 INFO L226 Difference]: Without dead ends: 1884 [2024-11-17 02:48:24,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:24,285 INFO L432 NwaCegarLoop]: 1784 mSDtfsCounter, 71 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 3504 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 [2024-11-17 02:48:24,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 3504 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:48:24,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2024-11-17 02:48:24,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1884. [2024-11-17 02:48:24,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1884 states, 1096 states have (on average 1.927919708029197) internal successors, (2113), 1874 states have internal predecessors, (2113), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:24,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2137 transitions. [2024-11-17 02:48:24,313 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2137 transitions. Word has length 13 [2024-11-17 02:48:24,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:24,313 INFO L471 AbstractCegarLoop]: Abstraction has 1884 states and 2137 transitions. [2024-11-17 02:48:24,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:24,314 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2137 transitions. [2024-11-17 02:48:24,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-17 02:48:24,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:24,314 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:24,318 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 (6)] Ended with exit code 0 [2024-11-17 02:48:24,514 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 [2024-11-17 02:48:24,515 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr884REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:24,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:24,515 INFO L85 PathProgramCache]: Analyzing trace with hash 263459624, now seen corresponding path program 1 times [2024-11-17 02:48:24,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:24,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218280533] [2024-11-17 02:48:24,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:24,516 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 [2024-11-17 02:48:24,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:24,519 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) [2024-11-17 02:48:24,520 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 [2024-11-17 02:48:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:24,657 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:48:24,659 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:24,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:24,675 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:24,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:24,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218280533] [2024-11-17 02:48:24,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218280533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:24,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:24,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:24,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377290570] [2024-11-17 02:48:24,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:24,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:24,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:24,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:24,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:24,677 INFO L87 Difference]: Start difference. First operand 1884 states and 2137 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) [2024-11-17 02:48:24,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:24,746 INFO L93 Difference]: Finished difference Result 1862 states and 2108 transitions. [2024-11-17 02:48:24,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:48:24,747 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 [2024-11-17 02:48:24,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:24,751 INFO L225 Difference]: With dead ends: 1862 [2024-11-17 02:48:24,751 INFO L226 Difference]: Without dead ends: 1862 [2024-11-17 02:48:24,752 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 [2024-11-17 02:48:24,752 INFO L432 NwaCegarLoop]: 1739 mSDtfsCounter, 48 mSDsluCounter, 3451 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5190 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 [2024-11-17 02:48:24,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 5190 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:48:24,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2024-11-17 02:48:24,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1862. [2024-11-17 02:48:24,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1088 states have (on average 1.9154411764705883) internal successors, (2084), 1852 states have internal predecessors, (2084), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:24,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2108 transitions. [2024-11-17 02:48:24,804 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2108 transitions. Word has length 15 [2024-11-17 02:48:24,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:24,804 INFO L471 AbstractCegarLoop]: Abstraction has 1862 states and 2108 transitions. [2024-11-17 02:48:24,805 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) [2024-11-17 02:48:24,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2108 transitions. [2024-11-17 02:48:24,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-17 02:48:24,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:24,805 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] [2024-11-17 02:48:24,813 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 (7)] Forceful destruction successful, exit code 0 [2024-11-17 02:48:25,006 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 [2024-11-17 02:48:25,007 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr870REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:25,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:25,007 INFO L85 PathProgramCache]: Analyzing trace with hash -625185474, now seen corresponding path program 1 times [2024-11-17 02:48:25,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:25,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162909485] [2024-11-17 02:48:25,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:25,008 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 [2024-11-17 02:48:25,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:25,013 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) [2024-11-17 02:48:25,016 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 [2024-11-17 02:48:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:25,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:48:25,169 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:25,177 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 [2024-11-17 02:48:25,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:25,237 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:25,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:25,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162909485] [2024-11-17 02:48:25,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162909485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:25,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:25,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:25,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530185633] [2024-11-17 02:48:25,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:25,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:25,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:25,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:25,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:25,240 INFO L87 Difference]: Start difference. First operand 1862 states and 2108 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-17 02:48:27,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:27,681 INFO L93 Difference]: Finished difference Result 1862 states and 2108 transitions. [2024-11-17 02:48:27,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:27,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2024-11-17 02:48:27,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:27,686 INFO L225 Difference]: With dead ends: 1862 [2024-11-17 02:48:27,686 INFO L226 Difference]: Without dead ends: 1862 [2024-11-17 02:48:27,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:27,687 INFO L432 NwaCegarLoop]: 1105 mSDtfsCounter, 1227 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 1855 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:27,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 2157 Invalid, 1866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1855 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-17 02:48:27,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1862 states. [2024-11-17 02:48:27,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1862 to 1858. [2024-11-17 02:48:27,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1858 states, 1088 states have (on average 1.911764705882353) internal successors, (2080), 1848 states have internal predecessors, (2080), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:27,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1858 states to 1858 states and 2104 transitions. [2024-11-17 02:48:27,707 INFO L78 Accepts]: Start accepts. Automaton has 1858 states and 2104 transitions. Word has length 29 [2024-11-17 02:48:27,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:27,707 INFO L471 AbstractCegarLoop]: Abstraction has 1858 states and 2104 transitions. [2024-11-17 02:48:27,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-17 02:48:27,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1858 states and 2104 transitions. [2024-11-17 02:48:27,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-17 02:48:27,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:27,709 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] [2024-11-17 02:48:27,714 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 [2024-11-17 02:48:27,909 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 [2024-11-17 02:48:27,909 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr871REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:27,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:27,910 INFO L85 PathProgramCache]: Analyzing trace with hash -625185473, now seen corresponding path program 1 times [2024-11-17 02:48:27,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:27,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [527135637] [2024-11-17 02:48:27,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:27,910 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 [2024-11-17 02:48:27,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:27,912 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) [2024-11-17 02:48:27,913 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 [2024-11-17 02:48:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:28,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 02:48:28,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:28,052 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 [2024-11-17 02:48:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:28,239 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:28,239 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:28,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [527135637] [2024-11-17 02:48:28,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [527135637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:28,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:28,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:28,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853753711] [2024-11-17 02:48:28,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:28,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:28,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:28,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:28,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:28,241 INFO L87 Difference]: Start difference. First operand 1858 states and 2104 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-17 02:48:31,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:31,049 INFO L93 Difference]: Finished difference Result 2247 states and 2391 transitions. [2024-11-17 02:48:31,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:31,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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 29 [2024-11-17 02:48:31,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:31,054 INFO L225 Difference]: With dead ends: 2247 [2024-11-17 02:48:31,054 INFO L226 Difference]: Without dead ends: 2247 [2024-11-17 02:48:31,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:31,055 INFO L432 NwaCegarLoop]: 1469 mSDtfsCounter, 719 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 1953 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 3179 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:31,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 3179 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1953 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-17 02:48:31,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2247 states. [2024-11-17 02:48:31,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2247 to 1854. [2024-11-17 02:48:31,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1854 states, 1088 states have (on average 1.9080882352941178) internal successors, (2076), 1844 states have internal predecessors, (2076), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:31,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2100 transitions. [2024-11-17 02:48:31,073 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2100 transitions. Word has length 29 [2024-11-17 02:48:31,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:31,073 INFO L471 AbstractCegarLoop]: Abstraction has 1854 states and 2100 transitions. [2024-11-17 02:48:31,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 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) [2024-11-17 02:48:31,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2100 transitions. [2024-11-17 02:48:31,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-17 02:48:31,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:31,074 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:31,080 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 [2024-11-17 02:48:31,277 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 [2024-11-17 02:48:31,278 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr856REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:31,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:31,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1694067996, now seen corresponding path program 1 times [2024-11-17 02:48:31,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:31,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1746295735] [2024-11-17 02:48:31,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:31,279 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 [2024-11-17 02:48:31,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:31,282 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) [2024-11-17 02:48:31,283 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 [2024-11-17 02:48:31,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:31,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:48:31,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:31,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:31,483 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:31,483 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:31,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1746295735] [2024-11-17 02:48:31,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1746295735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:31,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:31,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:31,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858632165] [2024-11-17 02:48:31,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:31,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:31,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:31,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:31,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:31,485 INFO L87 Difference]: Start difference. First operand 1854 states and 2100 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:31,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:31,528 INFO L93 Difference]: Finished difference Result 1848 states and 2090 transitions. [2024-11-17 02:48:31,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:48:31,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-11-17 02:48:31,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:31,532 INFO L225 Difference]: With dead ends: 1848 [2024-11-17 02:48:31,532 INFO L226 Difference]: Without dead ends: 1848 [2024-11-17 02:48:31,532 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:31,533 INFO L432 NwaCegarLoop]: 1733 mSDtfsCounter, 21 mSDsluCounter, 3434 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 5167 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 [2024-11-17 02:48:31,533 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 5167 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:48:31,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2024-11-17 02:48:31,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1848. [2024-11-17 02:48:31,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1848 states, 1082 states have (on average 1.9094269870609981) internal successors, (2066), 1838 states have internal predecessors, (2066), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:31,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2090 transitions. [2024-11-17 02:48:31,549 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2090 transitions. Word has length 46 [2024-11-17 02:48:31,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:31,550 INFO L471 AbstractCegarLoop]: Abstraction has 1848 states and 2090 transitions. [2024-11-17 02:48:31,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:31,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2090 transitions. [2024-11-17 02:48:31,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-17 02:48:31,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:31,551 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] [2024-11-17 02:48:31,559 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 [2024-11-17 02:48:31,754 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 [2024-11-17 02:48:31,758 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr856REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:31,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:31,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1413309484, now seen corresponding path program 1 times [2024-11-17 02:48:31,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:31,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682109628] [2024-11-17 02:48:31,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:31,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:48:31,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:31,765 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) [2024-11-17 02:48:31,766 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 [2024-11-17 02:48:31,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:31,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:48:31,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:32,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:32,298 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:32,298 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:32,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682109628] [2024-11-17 02:48:32,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682109628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:32,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:32,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:32,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85783626] [2024-11-17 02:48:32,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:32,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:32,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:32,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:32,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:32,299 INFO L87 Difference]: Start difference. First operand 1848 states and 2090 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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) [2024-11-17 02:48:32,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:32,435 INFO L93 Difference]: Finished difference Result 2259 states and 2538 transitions. [2024-11-17 02:48:32,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:32,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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 [2024-11-17 02:48:32,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:32,440 INFO L225 Difference]: With dead ends: 2259 [2024-11-17 02:48:32,441 INFO L226 Difference]: Without dead ends: 2259 [2024-11-17 02:48:32,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:32,441 INFO L432 NwaCegarLoop]: 1821 mSDtfsCounter, 377 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 3503 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:32,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 3503 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:32,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2024-11-17 02:48:32,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 1897. [2024-11-17 02:48:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1897 states, 1131 states have (on average 1.870026525198939) internal successors, (2115), 1887 states have internal predecessors, (2115), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:32,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1897 states to 1897 states and 2139 transitions. [2024-11-17 02:48:32,468 INFO L78 Accepts]: Start accepts. Automaton has 1897 states and 2139 transitions. Word has length 54 [2024-11-17 02:48:32,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:32,470 INFO L471 AbstractCegarLoop]: Abstraction has 1897 states and 2139 transitions. [2024-11-17 02:48:32,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 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) [2024-11-17 02:48:32,470 INFO L276 IsEmpty]: Start isEmpty. Operand 1897 states and 2139 transitions. [2024-11-17 02:48:32,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-17 02:48:32,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:32,471 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] [2024-11-17 02:48:32,482 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 [2024-11-17 02:48:32,675 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 [2024-11-17 02:48:32,676 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr827REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:32,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:32,676 INFO L85 PathProgramCache]: Analyzing trace with hash -338938751, now seen corresponding path program 1 times [2024-11-17 02:48:32,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:32,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155020966] [2024-11-17 02:48:32,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:32,677 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 [2024-11-17 02:48:32,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:32,678 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) [2024-11-17 02:48:32,679 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 [2024-11-17 02:48:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:32,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 02:48:32,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:32,961 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 [2024-11-17 02:48:32,971 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 [2024-11-17 02:48:33,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 02:48:33,430 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 [2024-11-17 02:48:33,444 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-17 02:48:33,445 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 [2024-11-17 02:48:33,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:33,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:33,458 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:33,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155020966] [2024-11-17 02:48:33,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155020966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:33,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:33,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:33,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440206887] [2024-11-17 02:48:33,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:33,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:33,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:33,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:33,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:33,459 INFO L87 Difference]: Start difference. First operand 1897 states and 2139 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-11-17 02:48:35,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:35,685 INFO L93 Difference]: Finished difference Result 1813 states and 2055 transitions. [2024-11-17 02:48:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:35,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2024-11-17 02:48:35,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:35,690 INFO L225 Difference]: With dead ends: 1813 [2024-11-17 02:48:35,690 INFO L226 Difference]: Without dead ends: 1813 [2024-11-17 02:48:35,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:35,691 INFO L432 NwaCegarLoop]: 863 mSDtfsCounter, 1152 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 1346 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 1209 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:35,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 1209 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1346 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-17 02:48:35,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1813 states. [2024-11-17 02:48:35,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1813 to 1629. [2024-11-17 02:48:35,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 947 states have (on average 1.7888067581837381) internal successors, (1694), 1619 states have internal predecessors, (1694), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:35,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 1718 transitions. [2024-11-17 02:48:35,706 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 1718 transitions. Word has length 57 [2024-11-17 02:48:35,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:35,706 INFO L471 AbstractCegarLoop]: Abstraction has 1629 states and 1718 transitions. [2024-11-17 02:48:35,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-11-17 02:48:35,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 1718 transitions. [2024-11-17 02:48:35,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-17 02:48:35,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:35,707 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] [2024-11-17 02:48:35,718 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 [2024-11-17 02:48:35,907 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 [2024-11-17 02:48:35,907 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr820REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:35,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:35,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1844765473, now seen corresponding path program 1 times [2024-11-17 02:48:35,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:35,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [562395216] [2024-11-17 02:48:35,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:35,909 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 [2024-11-17 02:48:35,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:35,911 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) [2024-11-17 02:48:35,912 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 [2024-11-17 02:48:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:36,120 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 02:48:36,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:36,128 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 [2024-11-17 02:48:36,136 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 [2024-11-17 02:48:36,169 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 [2024-11-17 02:48:36,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:36,176 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:36,176 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:36,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [562395216] [2024-11-17 02:48:36,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [562395216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:36,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:36,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:36,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313781109] [2024-11-17 02:48:36,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:36,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 02:48:36,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:36,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 02:48:36,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:36,178 INFO L87 Difference]: Start difference. First operand 1629 states and 1718 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 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) [2024-11-17 02:48:38,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:38,694 INFO L93 Difference]: Finished difference Result 1628 states and 1717 transitions. [2024-11-17 02:48:38,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 02:48:38,695 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 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 [2024-11-17 02:48:38,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:38,699 INFO L225 Difference]: With dead ends: 1628 [2024-11-17 02:48:38,699 INFO L226 Difference]: Without dead ends: 1628 [2024-11-17 02:48:38,699 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 02:48:38,699 INFO L432 NwaCegarLoop]: 1660 mSDtfsCounter, 2 mSDsluCounter, 2643 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4303 SdHoareTripleChecker+Invalid, 2345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:38,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4303 Invalid, 2345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-17 02:48:38,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2024-11-17 02:48:38,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1628. [2024-11-17 02:48:38,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 947 states have (on average 1.787750791974657) internal successors, (1693), 1618 states have internal predecessors, (1693), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:38,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 1717 transitions. [2024-11-17 02:48:38,713 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 1717 transitions. Word has length 62 [2024-11-17 02:48:38,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:38,713 INFO L471 AbstractCegarLoop]: Abstraction has 1628 states and 1717 transitions. [2024-11-17 02:48:38,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 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) [2024-11-17 02:48:38,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 1717 transitions. [2024-11-17 02:48:38,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-17 02:48:38,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:38,714 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] [2024-11-17 02:48:38,724 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 [2024-11-17 02:48:38,917 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 [2024-11-17 02:48:38,918 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr821REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:38,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:38,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1844765472, now seen corresponding path program 1 times [2024-11-17 02:48:38,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:38,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864118034] [2024-11-17 02:48:38,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:38,920 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 [2024-11-17 02:48:38,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:38,922 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) [2024-11-17 02:48:38,923 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 [2024-11-17 02:48:39,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:39,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-17 02:48:39,128 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:39,136 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 [2024-11-17 02:48:39,148 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 [2024-11-17 02:48:39,155 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 [2024-11-17 02:48:39,181 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 [2024-11-17 02:48:39,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:39,193 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:39,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:39,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864118034] [2024-11-17 02:48:39,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864118034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:39,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:39,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:39,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767494783] [2024-11-17 02:48:39,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:39,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 02:48:39,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:39,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 02:48:39,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:39,195 INFO L87 Difference]: Start difference. First operand 1628 states and 1717 transitions. Second operand has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 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) [2024-11-17 02:48:41,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:41,915 INFO L93 Difference]: Finished difference Result 1627 states and 1716 transitions. [2024-11-17 02:48:41,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 02:48:41,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 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 [2024-11-17 02:48:41,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:41,922 INFO L225 Difference]: With dead ends: 1627 [2024-11-17 02:48:41,923 INFO L226 Difference]: Without dead ends: 1627 [2024-11-17 02:48:41,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-17 02:48:41,923 INFO L432 NwaCegarLoop]: 1660 mSDtfsCounter, 1 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 2271 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4373 SdHoareTripleChecker+Invalid, 2272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:41,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4373 Invalid, 2272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2271 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-17 02:48:41,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1627 states. [2024-11-17 02:48:41,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1627 to 1627. [2024-11-17 02:48:41,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 946 states have (on average 1.7885835095137421) internal successors, (1692), 1617 states have internal predecessors, (1692), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-17 02:48:41,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 1716 transitions. [2024-11-17 02:48:41,942 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 1716 transitions. Word has length 62 [2024-11-17 02:48:41,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:41,943 INFO L471 AbstractCegarLoop]: Abstraction has 1627 states and 1716 transitions. [2024-11-17 02:48:41,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.5) internal successors, (62), 5 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) [2024-11-17 02:48:41,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 1716 transitions. [2024-11-17 02:48:41,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-17 02:48:41,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:41,945 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] [2024-11-17 02:48:41,957 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 [2024-11-17 02:48:42,149 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 [2024-11-17 02:48:42,150 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:42,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:42,150 INFO L85 PathProgramCache]: Analyzing trace with hash -908757284, now seen corresponding path program 1 times [2024-11-17 02:48:42,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:42,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179297087] [2024-11-17 02:48:42,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:42,151 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 [2024-11-17 02:48:42,151 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:42,153 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) [2024-11-17 02:48:42,154 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 [2024-11-17 02:48:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:42,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:48:42,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:42,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:42,388 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:42,388 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:42,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179297087] [2024-11-17 02:48:42,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179297087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:42,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:42,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:42,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528105772] [2024-11-17 02:48:42,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:42,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:42,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:42,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:42,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:42,390 INFO L87 Difference]: Start difference. First operand 1627 states and 1716 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-11-17 02:48:42,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:42,427 INFO L93 Difference]: Finished difference Result 1630 states and 1721 transitions. [2024-11-17 02:48:42,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:42,427 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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 70 [2024-11-17 02:48:42,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:42,438 INFO L225 Difference]: With dead ends: 1630 [2024-11-17 02:48:42,438 INFO L226 Difference]: Without dead ends: 1630 [2024-11-17 02:48:42,438 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:42,439 INFO L432 NwaCegarLoop]: 1659 mSDtfsCounter, 0 mSDsluCounter, 3310 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4969 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:42,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4969 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:48:42,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2024-11-17 02:48:42,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1630. [2024-11-17 02:48:42,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 948 states have (on average 1.7879746835443038) internal successors, (1695), 1620 states have internal predecessors, (1695), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-17 02:48:42,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 1721 transitions. [2024-11-17 02:48:42,460 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 1721 transitions. Word has length 70 [2024-11-17 02:48:42,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:42,463 INFO L471 AbstractCegarLoop]: Abstraction has 1630 states and 1721 transitions. [2024-11-17 02:48:42,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 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) [2024-11-17 02:48:42,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 1721 transitions. [2024-11-17 02:48:42,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-17 02:48:42,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:42,463 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] [2024-11-17 02:48:42,473 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 [2024-11-17 02:48:42,664 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 [2024-11-17 02:48:42,664 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:42,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:42,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1017012527, now seen corresponding path program 1 times [2024-11-17 02:48:42,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:42,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924969809] [2024-11-17 02:48:42,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:42,665 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 [2024-11-17 02:48:42,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:42,668 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) [2024-11-17 02:48:42,669 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 [2024-11-17 02:48:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:42,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:48:42,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:42,902 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:42,903 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:42,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:42,982 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:42,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924969809] [2024-11-17 02:48:42,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924969809] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:48:42,982 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:42,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-17 02:48:42,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119454140] [2024-11-17 02:48:42,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:42,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 02:48:42,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:42,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 02:48:42,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-17 02:48:42,983 INFO L87 Difference]: Start difference. First operand 1630 states and 1721 transitions. Second operand has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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) [2024-11-17 02:48:43,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:43,092 INFO L93 Difference]: Finished difference Result 1642 states and 1739 transitions. [2024-11-17 02:48:43,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 02:48:43,092 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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 71 [2024-11-17 02:48:43,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:43,095 INFO L225 Difference]: With dead ends: 1642 [2024-11-17 02:48:43,095 INFO L226 Difference]: Without dead ends: 1642 [2024-11-17 02:48:43,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-17 02:48:43,096 INFO L432 NwaCegarLoop]: 1658 mSDtfsCounter, 6 mSDsluCounter, 3311 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4969 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:43,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4969 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:43,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2024-11-17 02:48:43,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1640. [2024-11-17 02:48:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1640 states, 957 states have (on average 1.786833855799373) internal successors, (1710), 1629 states have internal predecessors, (1710), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-17 02:48:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 1736 transitions. [2024-11-17 02:48:43,115 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 1736 transitions. Word has length 71 [2024-11-17 02:48:43,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:43,116 INFO L471 AbstractCegarLoop]: Abstraction has 1640 states and 1736 transitions. [2024-11-17 02:48:43,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.125) internal successors, (73), 8 states have internal predecessors, (73), 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) [2024-11-17 02:48:43,116 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 1736 transitions. [2024-11-17 02:48:43,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-17 02:48:43,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:43,117 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] [2024-11-17 02:48:43,126 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 (16)] Ended with exit code 0 [2024-11-17 02:48:43,321 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 [2024-11-17 02:48:43,321 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:43,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:43,322 INFO L85 PathProgramCache]: Analyzing trace with hash -543536100, now seen corresponding path program 2 times [2024-11-17 02:48:43,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:43,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283726178] [2024-11-17 02:48:43,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 02:48:43,322 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 [2024-11-17 02:48:43,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:43,324 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) [2024-11-17 02:48:43,326 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 [2024-11-17 02:48:43,667 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 02:48:43,668 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:48:43,678 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 02:48:43,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:43,716 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:43,716 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:43,818 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:43,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:43,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [283726178] [2024-11-17 02:48:43,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [283726178] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:48:43,819 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:43,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-17 02:48:43,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253306535] [2024-11-17 02:48:43,819 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:43,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 02:48:43,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:43,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 02:48:43,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-17 02:48:43,820 INFO L87 Difference]: Start difference. First operand 1640 states and 1736 transitions. Second operand has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 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) [2024-11-17 02:48:44,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:44,151 INFO L93 Difference]: Finished difference Result 1655 states and 1759 transitions. [2024-11-17 02:48:44,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-17 02:48:44,152 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 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 74 [2024-11-17 02:48:44,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:44,155 INFO L225 Difference]: With dead ends: 1655 [2024-11-17 02:48:44,155 INFO L226 Difference]: Without dead ends: 1651 [2024-11-17 02:48:44,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-17 02:48:44,156 INFO L432 NwaCegarLoop]: 1658 mSDtfsCounter, 13 mSDsluCounter, 8274 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 9932 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:44,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 9932 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 02:48:44,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2024-11-17 02:48:44,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1649. [2024-11-17 02:48:44,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 966 states have (on average 1.7826086956521738) internal successors, (1722), 1638 states have internal predecessors, (1722), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-17 02:48:44,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 1748 transitions. [2024-11-17 02:48:44,172 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 1748 transitions. Word has length 74 [2024-11-17 02:48:44,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:44,172 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 1748 transitions. [2024-11-17 02:48:44,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.642857142857143) internal successors, (79), 14 states have internal predecessors, (79), 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) [2024-11-17 02:48:44,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 1748 transitions. [2024-11-17 02:48:44,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-17 02:48:44,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:44,173 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] [2024-11-17 02:48:44,183 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 [2024-11-17 02:48:44,377 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 [2024-11-17 02:48:44,378 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:44,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:44,378 INFO L85 PathProgramCache]: Analyzing trace with hash 786358268, now seen corresponding path program 3 times [2024-11-17 02:48:44,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:44,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487326345] [2024-11-17 02:48:44,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 02:48:44,379 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 [2024-11-17 02:48:44,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:44,380 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) [2024-11-17 02:48:44,380 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 [2024-11-17 02:48:44,915 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-17 02:48:44,916 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:48:44,927 INFO L255 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-17 02:48:44,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:45,034 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:45,034 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:45,447 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:45,447 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:45,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487326345] [2024-11-17 02:48:45,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487326345] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:48:45,448 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:45,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-17 02:48:45,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357374909] [2024-11-17 02:48:45,448 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:45,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-17 02:48:45,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:45,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-17 02:48:45,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-17 02:48:45,449 INFO L87 Difference]: Start difference. First operand 1649 states and 1748 transitions. Second operand has 26 states, 26 states have (on average 3.5) internal successors, (91), 26 states have internal predecessors, (91), 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) [2024-11-17 02:48:46,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:46,711 INFO L93 Difference]: Finished difference Result 1673 states and 1787 transitions. [2024-11-17 02:48:46,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-17 02:48:46,712 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.5) internal successors, (91), 26 states have internal predecessors, (91), 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 80 [2024-11-17 02:48:46,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:46,717 INFO L225 Difference]: With dead ends: 1673 [2024-11-17 02:48:46,721 INFO L226 Difference]: Without dead ends: 1667 [2024-11-17 02:48:46,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-17 02:48:46,722 INFO L432 NwaCegarLoop]: 1659 mSDtfsCounter, 17 mSDsluCounter, 19856 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 21515 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:46,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 21515 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-17 02:48:46,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2024-11-17 02:48:46,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1667. [2024-11-17 02:48:46,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1667 states, 984 states have (on average 1.7733739837398375) internal successors, (1745), 1656 states have internal predecessors, (1745), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-17 02:48:46,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 1771 transitions. [2024-11-17 02:48:46,752 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 1771 transitions. Word has length 80 [2024-11-17 02:48:46,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:46,752 INFO L471 AbstractCegarLoop]: Abstraction has 1667 states and 1771 transitions. [2024-11-17 02:48:46,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.5) internal successors, (91), 26 states have internal predecessors, (91), 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) [2024-11-17 02:48:46,752 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 1771 transitions. [2024-11-17 02:48:46,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-17 02:48:46,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:46,753 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] [2024-11-17 02:48:46,775 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 (18)] Ended with exit code 0 [2024-11-17 02:48:46,959 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 [2024-11-17 02:48:46,960 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:46,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:46,960 INFO L85 PathProgramCache]: Analyzing trace with hash -247279684, now seen corresponding path program 4 times [2024-11-17 02:48:46,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:46,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356223535] [2024-11-17 02:48:46,962 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-17 02:48:46,962 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 [2024-11-17 02:48:46,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:46,964 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) [2024-11-17 02:48:46,965 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 [2024-11-17 02:48:47,360 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-17 02:48:47,360 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:48:47,374 INFO L255 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-17 02:48:47,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:47,688 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:47,688 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:48,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:48,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356223535] [2024-11-17 02:48:48,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356223535] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:48:48,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:48,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-17 02:48:48,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811578347] [2024-11-17 02:48:48,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:48,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-17 02:48:48,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:48,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-17 02:48:48,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-17 02:48:48,812 INFO L87 Difference]: Start difference. First operand 1667 states and 1771 transitions. Second operand has 50 states, 50 states have (on average 2.3) internal successors, (115), 50 states have internal predecessors, (115), 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) [2024-11-17 02:48:53,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:53,161 INFO L93 Difference]: Finished difference Result 1707 states and 1844 transitions. [2024-11-17 02:48:53,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-17 02:48:53,162 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.3) internal successors, (115), 50 states have internal predecessors, (115), 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 92 [2024-11-17 02:48:53,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:53,164 INFO L225 Difference]: With dead ends: 1707 [2024-11-17 02:48:53,164 INFO L226 Difference]: Without dead ends: 1703 [2024-11-17 02:48:53,166 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-17 02:48:53,166 INFO L432 NwaCegarLoop]: 1658 mSDtfsCounter, 44 mSDsluCounter, 39697 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 41355 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:53,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 41355 Invalid, 2163 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [101 Valid, 2062 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-17 02:48:53,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2024-11-17 02:48:53,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1701. [2024-11-17 02:48:53,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1018 states have (on average 1.7593320235756384) internal successors, (1791), 1690 states have internal predecessors, (1791), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2024-11-17 02:48:53,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 1817 transitions. [2024-11-17 02:48:53,180 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 1817 transitions. Word has length 92 [2024-11-17 02:48:53,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:53,180 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 1817 transitions. [2024-11-17 02:48:53,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.3) internal successors, (115), 50 states have internal predecessors, (115), 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) [2024-11-17 02:48:53,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 1817 transitions. [2024-11-17 02:48:53,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-17 02:48:53,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:53,181 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] [2024-11-17 02:48:53,192 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 [2024-11-17 02:48:53,381 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 [2024-11-17 02:48:53,382 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr816REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 912 more)] === [2024-11-17 02:48:53,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:53,383 INFO L85 PathProgramCache]: Analyzing trace with hash 285491356, now seen corresponding path program 5 times [2024-11-17 02:48:53,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:53,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [618217712] [2024-11-17 02:48:53,383 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-17 02:48:53,383 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 [2024-11-17 02:48:53,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:53,386 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) [2024-11-17 02:48:53,387 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 [2024-11-17 02:48:54,466 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-17 02:48:54,467 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:48:54,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-17 02:48:54,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:54,499 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 [2024-11-17 02:48:54,579 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-17 02:48:54,580 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 [2024-11-17 02:48:54,600 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 [2024-11-17 02:48:54,662 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 [2024-11-17 02:48:55,588 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:55,588 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 [2024-11-17 02:48:55,641 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 [2024-11-17 02:48:55,663 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-17 02:48:55,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:55,989 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:55,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [618217712] [2024-11-17 02:48:55,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [618217712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:55,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [589364340] [2024-11-17 02:48:55,990 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-17 02:48:55,990 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-17 02:48:55,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-17 02:48:55,991 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-17 02:48:55,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process