./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.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_test3-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 02:47:40,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 02:47:40,811 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-17 02:47:40,815 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 02:47:40,816 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 02:47:40,840 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 02:47:40,841 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 02:47:40,841 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 02:47:40,842 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 02:47:40,842 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 02:47:40,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 02:47:40,843 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 02:47:40,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 02:47:40,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 02:47:40,844 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 02:47:40,844 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 02:47:40,845 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 02:47:40,848 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 02:47:40,848 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 02:47:40,849 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 02:47:40,849 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 02:47:40,849 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 02:47:40,850 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 02:47:40,853 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 02:47:40,853 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 02:47:40,854 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 02:47:40,854 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 02:47:40,854 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 02:47:40,854 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 02:47:40,855 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 02:47:40,855 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 02:47:40,855 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 02:47:40,856 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 02:47:40,856 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:47:40,857 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 02:47:40,857 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 02:47:40,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 02:47:40,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 02:47:40,859 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 02:47:40,860 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 02:47:40,860 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 02:47:40,861 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 02:47:40,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 [2024-11-17 02:47:41,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 02:47:41,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 02:47:41,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 02:47:41,130 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 02:47:41,130 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 02:47:41,132 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2024-11-17 02:47:42,596 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 02:47:42,867 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 02:47:42,867 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2024-11-17 02:47:42,897 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e519cbc6/24cc7e4add9e4f30965c977d8cfabc5e/FLAG477ff769a [2024-11-17 02:47:43,170 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e519cbc6/24cc7e4add9e4f30965c977d8cfabc5e [2024-11-17 02:47:43,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 02:47:43,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 02:47:43,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 02:47:43,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 02:47:43,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 02:47:43,179 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:47:43" (1/1) ... [2024-11-17 02:47:43,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a90289e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:43, skipping insertion in model container [2024-11-17 02:47:43,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:47:43" (1/1) ... [2024-11-17 02:47:43,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:47:43,685 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 02:47:43,729 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 02:47:43,734 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 02:47:43,752 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 02:47:43,763 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 02:47:43,810 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 02:47:43,811 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 02:47:43,813 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 02:47:43,813 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 02:47:43,815 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 02:47:43,817 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 02:47:43,817 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 02:47:43,818 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 02:47:43,822 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 02:47:43,823 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 02:47:43,824 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 02:47:43,825 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 02:47:43,826 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 02:47:43,827 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 02:47:43,830 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 02:47:43,840 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:47:43,858 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 02:47:43,859 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@105192ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:43, skipping insertion in model container [2024-11-17 02:47:43,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 02:47:43,860 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-17 02:47:43,862 INFO L158 Benchmark]: Toolchain (without parser) took 687.19ms. Allocated memory was 142.6MB in the beginning and 205.5MB in the end (delta: 62.9MB). Free memory was 85.5MB in the beginning and 169.6MB in the end (delta: -84.2MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2024-11-17 02:47:43,862 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 142.6MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 02:47:43,863 INFO L158 Benchmark]: CACSL2BoogieTranslator took 684.99ms. Allocated memory was 142.6MB in the beginning and 205.5MB in the end (delta: 62.9MB). Free memory was 85.5MB in the beginning and 169.6MB in the end (delta: -84.2MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2024-11-17 02:47:43,864 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 142.6MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 684.99ms. Allocated memory was 142.6MB in the beginning and 205.5MB in the end (delta: 62.9MB). Free memory was 85.5MB in the beginning and 169.6MB in the end (delta: -84.2MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 747]: 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_test3-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 02:47:45,858 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 02:47:45,948 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-17 02:47:45,954 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 02:47:45,955 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 02:47:45,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 02:47:45,984 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 02:47:45,985 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 02:47:45,986 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 02:47:45,989 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 02:47:45,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 02:47:45,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 02:47:45,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 02:47:45,992 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 02:47:45,992 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 02:47:45,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 02:47:45,992 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 02:47:45,993 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 02:47:45,993 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 02:47:45,993 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 02:47:45,994 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-17 02:47:45,995 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-17 02:47:45,995 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-17 02:47:45,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 02:47:45,995 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-17 02:47:45,996 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-17 02:47:45,996 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 02:47:45,996 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-17 02:47:45,996 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 02:47:45,996 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 02:47:45,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 02:47:45,997 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 02:47:45,998 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 02:47:45,998 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 02:47:45,998 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 02:47:45,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:47:45,999 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 02:47:46,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 02:47:46,000 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-17 02:47:46,000 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-17 02:47:46,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 02:47:46,001 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 02:47:46,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 02:47:46,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 02:47:46,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6560568361eacef24363f4e5a58f5226b4c8bc2851167e042d4f8ce61eb0aa48 [2024-11-17 02:47:46,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 02:47:46,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 02:47:46,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 02:47:46,377 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 02:47:46,377 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 02:47:46,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2024-11-17 02:47:48,085 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 02:47:48,421 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 02:47:48,423 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test3-2.i [2024-11-17 02:47:48,448 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4ec1a993/91720328b62e434898aa7ffab220326b/FLAGf145db585 [2024-11-17 02:47:48,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c4ec1a993/91720328b62e434898aa7ffab220326b [2024-11-17 02:47:48,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 02:47:48,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 02:47:48,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 02:47:48,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 02:47:48,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 02:47:48,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:47:48" (1/1) ... [2024-11-17 02:47:48,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9c6cf2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:48, skipping insertion in model container [2024-11-17 02:47:48,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 02:47:48" (1/1) ... [2024-11-17 02:47:48,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:47:48,958 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 02:47:48,994 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 02:47:49,000 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 02:47:49,011 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 02:47:49,023 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 02:47:49,068 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 02:47:49,072 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 02:47:49,074 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 02:47:49,075 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 02:47:49,077 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 02:47:49,080 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 02:47:49,083 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 02:47:49,088 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 02:47:49,091 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 02:47:49,096 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 02:47:49,098 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 02:47:49,103 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 02:47:49,103 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 02:47:49,104 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 02:47:49,107 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 02:47:49,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:47:49,137 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-17 02:47:49,153 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 02:47:49,188 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 02:47:49,204 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 02:47:49,206 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 02:47:49,208 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 02:47:49,212 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 02:47:49,229 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 02:47:49,229 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 02:47:49,231 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 02:47:49,232 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 02:47:49,234 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 02:47:49,235 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 02:47:49,236 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 02:47:49,236 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 02:47:49,239 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 02:47:49,240 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 02:47:49,241 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 02:47:49,242 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 02:47:49,243 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 02:47:49,244 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 02:47:49,246 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 02:47:49,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:47:49,253 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 02:47:49,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 02:47:49,374 INFO L204 MainTranslator]: Completed translation [2024-11-17 02:47:49,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49 WrapperNode [2024-11-17 02:47:49,375 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 02:47:49,376 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 02:47:49,376 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 02:47:49,376 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 02:47:49,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,481 INFO L138 Inliner]: procedures = 180, calls = 330, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1196 [2024-11-17 02:47:49,482 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 02:47:49,482 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 02:47:49,483 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 02:47:49,483 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 02:47:49,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,506 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,609 INFO L175 MemorySlicer]: Split 303 memory accesses to 3 slices as follows [2, 267, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2024-11-17 02:47:49,609 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,610 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,660 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,668 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 02:47:49,693 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 02:47:49,693 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 02:47:49,693 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 02:47:49,694 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (1/1) ... [2024-11-17 02:47:49,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 02:47:49,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 02:47:49,729 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 02:47:49,762 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 02:47:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2024-11-17 02:47:49,799 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2024-11-17 02:47:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-17 02:47:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-17 02:47:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-17 02:47:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-17 02:47:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-17 02:47:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-17 02:47:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-17 02:47:49,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-17 02:47:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-17 02:47:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-17 02:47:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-17 02:47:49,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-17 02:47:49,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-17 02:47:49,801 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-17 02:47:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 02:47:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 02:47:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 02:47:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 02:47:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 02:47:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 02:47:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 02:47:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 02:47:49,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 02:47:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 02:47:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-17 02:47:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-17 02:47:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-17 02:47:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-17 02:47:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-17 02:47:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-17 02:47:49,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 02:47:49,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 02:47:50,016 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 02:47:50,018 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 02:47:53,886 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L733: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2024-11-17 02:47:54,018 INFO L? ?]: Removed 1312 outVars from TransFormulas that were not future-live. [2024-11-17 02:47:54,018 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 02:47:54,056 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 02:47:54,056 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 02:47:54,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 02:47:54 BoogieIcfgContainer [2024-11-17 02:47:54,057 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 02:47:54,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 02:47:54,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 02:47:54,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 02:47:54,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 02:47:48" (1/3) ... [2024-11-17 02:47:54,066 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2b44a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:47:54, skipping insertion in model container [2024-11-17 02:47:54,066 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 02:47:49" (2/3) ... [2024-11-17 02:47:54,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2b44a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 02:47:54, skipping insertion in model container [2024-11-17 02:47:54,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 02:47:54" (3/3) ... [2024-11-17 02:47:54,069 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test3-2.i [2024-11-17 02:47:54,085 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 02:47:54,085 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 632 error locations. [2024-11-17 02:47:54,170 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 02:47:54,177 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;@51dd8d25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 02:47:54,178 INFO L334 AbstractCegarLoop]: Starting to check reachability of 632 error locations. [2024-11-17 02:47:54,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 1308 states, 665 states have (on average 2.169924812030075) internal successors, (1443), 1301 states have internal predecessors, (1443), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-17 02:47:54,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-17 02:47:54,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:47:54,193 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-17 02:47:54,194 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr629REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:47:54,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:47:54,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1492446, now seen corresponding path program 1 times [2024-11-17 02:47:54,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:47:54,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1385926520] [2024-11-17 02:47:54,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:47:54,212 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:47:54,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:47:54,214 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 02:47:54,232 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 02:47:54,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:47:54,395 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:47:54,400 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:47:54,455 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 02:47:54,466 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 02:47:54,466 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:47:54,467 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:47:54,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1385926520] [2024-11-17 02:47:54,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1385926520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:47:54,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:47:54,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:47:54,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602368552] [2024-11-17 02:47:54,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:47:54,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:47:54,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:47:54,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:47:54,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:47:54,523 INFO L87 Difference]: Start difference. First operand has 1308 states, 665 states have (on average 2.169924812030075) internal successors, (1443), 1301 states have internal predecessors, (1443), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:47:56,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:47:56,129 INFO L93 Difference]: Finished difference Result 1488 states and 1574 transitions. [2024-11-17 02:47:56,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:47:56,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-17 02:47:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:47:56,149 INFO L225 Difference]: With dead ends: 1488 [2024-11-17 02:47:56,149 INFO L226 Difference]: Without dead ends: 1485 [2024-11-17 02:47:56,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:47:56,153 INFO L432 NwaCegarLoop]: 805 mSDtfsCounter, 1201 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 976 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-17 02:47:56,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 976 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-17 02:47:56,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1485 states. [2024-11-17 02:47:56,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1485 to 1291. [2024-11-17 02:47:56,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 665 states have (on average 2.030075187969925) internal successors, (1350), 1284 states have internal predecessors, (1350), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:47:56,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1368 transitions. [2024-11-17 02:47:56,240 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1368 transitions. Word has length 3 [2024-11-17 02:47:56,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:47:56,240 INFO L471 AbstractCegarLoop]: Abstraction has 1291 states and 1368 transitions. [2024-11-17 02:47:56,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:47:56,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1368 transitions. [2024-11-17 02:47:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-17 02:47:56,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:47:56,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-17 02:47:56,245 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 02:47:56,442 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 02:47:56,442 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr630REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:47:56,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:47:56,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1492447, now seen corresponding path program 1 times [2024-11-17 02:47:56,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:47:56,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1997433842] [2024-11-17 02:47:56,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:47:56,444 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 02:47:56,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:47:56,445 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 02:47:56,447 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 02:47:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:47:56,574 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:47:56,576 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:47:56,587 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 02:47:56,599 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 02:47:56,600 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:47:56,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:47:56,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1997433842] [2024-11-17 02:47:56,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1997433842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:47:56,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:47:56,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:47:56,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633820950] [2024-11-17 02:47:56,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:47:56,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:47:56,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:47:56,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:47:56,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:47:56,604 INFO L87 Difference]: Start difference. First operand 1291 states and 1368 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:47:59,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:47:59,043 INFO L93 Difference]: Finished difference Result 1931 states and 2061 transitions. [2024-11-17 02:47:59,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:47:59,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-17 02:47:59,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:47:59,051 INFO L225 Difference]: With dead ends: 1931 [2024-11-17 02:47:59,051 INFO L226 Difference]: Without dead ends: 1931 [2024-11-17 02:47:59,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:47:59,052 INFO L432 NwaCegarLoop]: 1073 mSDtfsCounter, 681 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-17 02:47:59,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1813 Invalid, 910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-17 02:47:59,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2024-11-17 02:47:59,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1513. [2024-11-17 02:47:59,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 888 states have (on average 2.0112612612612613) internal successors, (1786), 1506 states have internal predecessors, (1786), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:47:59,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1804 transitions. [2024-11-17 02:47:59,090 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1804 transitions. Word has length 3 [2024-11-17 02:47:59,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:47:59,091 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 1804 transitions. [2024-11-17 02:47:59,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:47:59,091 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1804 transitions. [2024-11-17 02:47:59,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-17 02:47:59,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:47:59,092 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:47:59,095 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 (3)] Forceful destruction successful, exit code 0 [2024-11-17 02:47:59,294 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 02:47:59,295 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr626REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:47:59,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:47:59,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1796491749, now seen corresponding path program 1 times [2024-11-17 02:47:59,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:47:59,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401222133] [2024-11-17 02:47:59,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:47:59,296 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 02:47:59,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:47:59,301 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 02:47:59,303 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 02:47:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:47:59,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 02:47:59,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:47:59,450 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 02:47:59,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-17 02:47:59,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 02:47:59,557 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 02:47:59,576 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-17 02:47:59,576 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 02:47:59,601 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 02:47:59,601 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:47:59,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:47:59,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401222133] [2024-11-17 02:47:59,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401222133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:47:59,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:47:59,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:47:59,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320138732] [2024-11-17 02:47:59,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:47:59,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:47:59,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:47:59,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:47:59,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:47:59,606 INFO L87 Difference]: Start difference. First operand 1513 states and 1804 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:02,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:02,486 INFO L93 Difference]: Finished difference Result 1702 states and 2004 transitions. [2024-11-17 02:48:02,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:02,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-17 02:48:02,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:02,492 INFO L225 Difference]: With dead ends: 1702 [2024-11-17 02:48:02,492 INFO L226 Difference]: Without dead ends: 1702 [2024-11-17 02:48:02,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:02,493 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 2693 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2701 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:02,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2701 Valid, 587 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-17 02:48:02,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1702 states. [2024-11-17 02:48:02,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1702 to 1279. [2024-11-17 02:48:02,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 665 states have (on average 2.0105263157894737) internal successors, (1337), 1272 states have internal predecessors, (1337), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:02,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1355 transitions. [2024-11-17 02:48:02,520 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1355 transitions. Word has length 8 [2024-11-17 02:48:02,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:02,521 INFO L471 AbstractCegarLoop]: Abstraction has 1279 states and 1355 transitions. [2024-11-17 02:48:02,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1355 transitions. [2024-11-17 02:48:02,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-17 02:48:02,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:02,522 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:02,528 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 02:48:02,723 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 02:48:02,724 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr623REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:02,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:02,727 INFO L85 PathProgramCache]: Analyzing trace with hash 143332020, now seen corresponding path program 1 times [2024-11-17 02:48:02,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:02,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293053093] [2024-11-17 02:48:02,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:02,728 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 02:48:02,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:02,731 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 02:48:02,733 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 02:48:02,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:02,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:48:02,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:02,880 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 02:48:02,891 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 02:48:02,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:02,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:02,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293053093] [2024-11-17 02:48:02,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293053093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:02,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:02,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:48:02,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728450014] [2024-11-17 02:48:02,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:02,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:02,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:02,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:02,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:02,898 INFO L87 Difference]: Start difference. First operand 1279 states and 1355 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:04,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:04,617 INFO L93 Difference]: Finished difference Result 1625 states and 1731 transitions. [2024-11-17 02:48:04,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:04,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-17 02:48:04,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:04,623 INFO L225 Difference]: With dead ends: 1625 [2024-11-17 02:48:04,624 INFO L226 Difference]: Without dead ends: 1625 [2024-11-17 02:48:04,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:04,627 INFO L432 NwaCegarLoop]: 1222 mSDtfsCounter, 961 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 879 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 879 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:04,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 1589 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 879 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-17 02:48:04,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1625 states. [2024-11-17 02:48:04,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1625 to 1230. [2024-11-17 02:48:04,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 665 states have (on average 1.936842105263158) internal successors, (1288), 1223 states have internal predecessors, (1288), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:04,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1306 transitions. [2024-11-17 02:48:04,655 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1306 transitions. Word has length 9 [2024-11-17 02:48:04,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:04,656 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1306 transitions. [2024-11-17 02:48:04,656 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:04,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1306 transitions. [2024-11-17 02:48:04,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-17 02:48:04,656 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:04,657 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:04,661 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 02:48:04,857 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 02:48:04,857 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr624REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:04,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:04,858 INFO L85 PathProgramCache]: Analyzing trace with hash 143332021, now seen corresponding path program 1 times [2024-11-17 02:48:04,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:04,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2108958950] [2024-11-17 02:48:04,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:04,858 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 02:48:04,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:04,860 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 02:48:04,861 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 02:48:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:04,977 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:48:04,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:04,988 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 02:48:05,013 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 02:48:05,014 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:05,014 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:05,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2108958950] [2024-11-17 02:48:05,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2108958950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:05,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:05,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 02:48:05,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740084932] [2024-11-17 02:48:05,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:05,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:05,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:05,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:05,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:05,015 INFO L87 Difference]: Start difference. First operand 1230 states and 1306 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:06,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:06,813 INFO L93 Difference]: Finished difference Result 1717 states and 1826 transitions. [2024-11-17 02:48:06,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:06,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-17 02:48:06,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:06,818 INFO L225 Difference]: With dead ends: 1717 [2024-11-17 02:48:06,818 INFO L226 Difference]: Without dead ends: 1717 [2024-11-17 02:48:06,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:06,819 INFO L432 NwaCegarLoop]: 1421 mSDtfsCounter, 710 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:06,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 1998 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-17 02:48:06,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1717 states. [2024-11-17 02:48:06,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1717 to 1259. [2024-11-17 02:48:06,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 704 states have (on average 1.9232954545454546) internal successors, (1354), 1252 states have internal predecessors, (1354), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:06,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1372 transitions. [2024-11-17 02:48:06,847 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1372 transitions. Word has length 9 [2024-11-17 02:48:06,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:06,848 INFO L471 AbstractCegarLoop]: Abstraction has 1259 states and 1372 transitions. [2024-11-17 02:48:06,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:06,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1372 transitions. [2024-11-17 02:48:06,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-17 02:48:06,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:06,849 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:06,853 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 02:48:07,049 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 02:48:07,050 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr110REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:07,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:07,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1628973646, now seen corresponding path program 1 times [2024-11-17 02:48:07,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:07,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1024364499] [2024-11-17 02:48:07,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:07,051 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 02:48:07,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:07,053 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 02:48:07,054 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 02:48:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:07,168 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 02:48:07,170 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:07,257 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 02:48:07,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:07,257 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:07,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1024364499] [2024-11-17 02:48:07,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1024364499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:07,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:07,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:07,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444030117] [2024-11-17 02:48:07,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:07,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:07,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:07,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:07,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:07,259 INFO L87 Difference]: Start difference. First operand 1259 states and 1372 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:07,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:07,900 INFO L93 Difference]: Finished difference Result 1877 states and 2074 transitions. [2024-11-17 02:48:07,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:07,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-17 02:48:07,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:07,906 INFO L225 Difference]: With dead ends: 1877 [2024-11-17 02:48:07,906 INFO L226 Difference]: Without dead ends: 1877 [2024-11-17 02:48:07,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 02:48:07,907 INFO L432 NwaCegarLoop]: 1429 mSDtfsCounter, 652 mSDsluCounter, 2485 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 3914 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:07,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 3914 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-17 02:48:07,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2024-11-17 02:48:07,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1518. [2024-11-17 02:48:07,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 963 states have (on average 1.8982346832814123) internal successors, (1828), 1511 states have internal predecessors, (1828), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:07,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1846 transitions. [2024-11-17 02:48:07,938 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1846 transitions. Word has length 14 [2024-11-17 02:48:07,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:07,938 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1846 transitions. [2024-11-17 02:48:07,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1846 transitions. [2024-11-17 02:48:07,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-17 02:48:07,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:07,940 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:07,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-17 02:48:08,141 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 02:48:08,141 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr299REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:08,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:08,141 INFO L85 PathProgramCache]: Analyzing trace with hash -346273135, now seen corresponding path program 1 times [2024-11-17 02:48:08,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:08,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953730223] [2024-11-17 02:48:08,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:08,142 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 02:48:08,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:08,143 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 02:48:08,144 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 02:48:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:08,270 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 02:48:08,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:08,285 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 02:48:08,285 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:08,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:08,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953730223] [2024-11-17 02:48:08,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953730223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:08,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:08,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:08,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687721986] [2024-11-17 02:48:08,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:08,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:08,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:08,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:08,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:08,289 INFO L87 Difference]: Start difference. First operand 1518 states and 1846 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:08,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:08,313 INFO L93 Difference]: Finished difference Result 1458 states and 1760 transitions. [2024-11-17 02:48:08,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:08,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-17 02:48:08,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:08,318 INFO L225 Difference]: With dead ends: 1458 [2024-11-17 02:48:08,319 INFO L226 Difference]: Without dead ends: 1458 [2024-11-17 02:48:08,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 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 02:48:08,320 INFO L432 NwaCegarLoop]: 1233 mSDtfsCounter, 71 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2402 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 02:48:08,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2402 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:48:08,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2024-11-17 02:48:08,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1458. [2024-11-17 02:48:08,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 927 states have (on average 1.8791801510248112) internal successors, (1742), 1451 states have internal predecessors, (1742), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:08,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1760 transitions. [2024-11-17 02:48:08,342 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1760 transitions. Word has length 16 [2024-11-17 02:48:08,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:08,342 INFO L471 AbstractCegarLoop]: Abstraction has 1458 states and 1760 transitions. [2024-11-17 02:48:08,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:08,343 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1760 transitions. [2024-11-17 02:48:08,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-17 02:48:08,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:08,343 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:08,348 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 02:48:08,544 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 02:48:08,545 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr275REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:08,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:08,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2056049403, now seen corresponding path program 1 times [2024-11-17 02:48:08,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:08,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [930618924] [2024-11-17 02:48:08,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:08,546 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 02:48:08,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:08,549 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 02:48:08,550 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 02:48:08,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:08,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:48:08,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:08,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:08,700 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:08,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:08,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [930618924] [2024-11-17 02:48:08,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [930618924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:08,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:08,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:08,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850161742] [2024-11-17 02:48:08,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:08,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:08,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:08,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:08,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:08,702 INFO L87 Difference]: Start difference. First operand 1458 states and 1760 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 02:48:08,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:08,775 INFO L93 Difference]: Finished difference Result 1428 states and 1702 transitions. [2024-11-17 02:48:08,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:48:08,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 18 [2024-11-17 02:48:08,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:08,780 INFO L225 Difference]: With dead ends: 1428 [2024-11-17 02:48:08,781 INFO L226 Difference]: Without dead ends: 1428 [2024-11-17 02:48:08,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 02:48:08,782 INFO L432 NwaCegarLoop]: 1188 mSDtfsCounter, 48 mSDsluCounter, 2349 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3537 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:08,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3537 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:08,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2024-11-17 02:48:08,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2024-11-17 02:48:08,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 911 states have (on average 1.8485181119648737) internal successors, (1684), 1421 states have internal predecessors, (1684), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:08,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1702 transitions. [2024-11-17 02:48:08,826 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1702 transitions. Word has length 18 [2024-11-17 02:48:08,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:08,826 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1702 transitions. [2024-11-17 02:48:08,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 02:48:08,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1702 transitions. [2024-11-17 02:48:08,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-17 02:48:08,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:08,827 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] [2024-11-17 02:48:08,832 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 02:48:09,027 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 02:48:09,028 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr615REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:09,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:09,029 INFO L85 PathProgramCache]: Analyzing trace with hash 49793037, now seen corresponding path program 1 times [2024-11-17 02:48:09,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:09,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368924644] [2024-11-17 02:48:09,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:09,030 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 02:48:09,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:09,031 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 02:48:09,033 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 02:48:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:09,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-17 02:48:09,199 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:09,212 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 02:48:09,213 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:09,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:09,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368924644] [2024-11-17 02:48:09,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1368924644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:09,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:09,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:09,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780928241] [2024-11-17 02:48:09,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:09,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 02:48:09,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:09,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 02:48:09,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 02:48:09,215 INFO L87 Difference]: Start difference. First operand 1428 states and 1702 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 02:48:09,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:09,245 INFO L93 Difference]: Finished difference Result 1368 states and 1616 transitions. [2024-11-17 02:48:09,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 02:48:09,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2024-11-17 02:48:09,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:09,250 INFO L225 Difference]: With dead ends: 1368 [2024-11-17 02:48:09,250 INFO L226 Difference]: Without dead ends: 1368 [2024-11-17 02:48:09,250 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 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 02:48:09,252 INFO L432 NwaCegarLoop]: 1155 mSDtfsCounter, 71 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2246 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 02:48:09,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2246 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:48:09,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2024-11-17 02:48:09,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 1368. [2024-11-17 02:48:09,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1368 states, 875 states have (on average 1.8262857142857143) internal successors, (1598), 1361 states have internal predecessors, (1598), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:09,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1368 states to 1368 states and 1616 transitions. [2024-11-17 02:48:09,275 INFO L78 Accepts]: Start accepts. Automaton has 1368 states and 1616 transitions. Word has length 20 [2024-11-17 02:48:09,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:09,275 INFO L471 AbstractCegarLoop]: Abstraction has 1368 states and 1616 transitions. [2024-11-17 02:48:09,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 02:48:09,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1616 transitions. [2024-11-17 02:48:09,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-17 02:48:09,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:09,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:09,285 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 (10)] Forceful destruction successful, exit code 0 [2024-11-17 02:48:09,483 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 02:48:09,483 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:09,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:09,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1947032309, now seen corresponding path program 1 times [2024-11-17 02:48:09,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:09,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241072252] [2024-11-17 02:48:09,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:09,484 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 02:48:09,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:09,487 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 02:48:09,488 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 02:48:09,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:09,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:48:09,648 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:09,654 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-17 02:48:09,654 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-17 02:48:09,655 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-17 02:48:09,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-17 02:48:09,719 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 02:48:09,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-17 02:48:09,732 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 02:48:09,732 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:09,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:09,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241072252] [2024-11-17 02:48:09,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241072252] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:09,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:09,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:09,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264279536] [2024-11-17 02:48:09,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:09,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:09,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:09,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:09,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:09,734 INFO L87 Difference]: Start difference. First operand 1368 states and 1616 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:09,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:09,905 INFO L93 Difference]: Finished difference Result 2429 states and 2809 transitions. [2024-11-17 02:48:09,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:09,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2024-11-17 02:48:09,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:09,910 INFO L225 Difference]: With dead ends: 2429 [2024-11-17 02:48:09,910 INFO L226 Difference]: Without dead ends: 2429 [2024-11-17 02:48:09,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:09,911 INFO L432 NwaCegarLoop]: 1149 mSDtfsCounter, 1083 mSDsluCounter, 2283 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 3432 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:09,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 3432 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2024-11-17 02:48:09,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 1367. [2024-11-17 02:48:09,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1367 states, 874 states have (on average 1.826086956521739) internal successors, (1596), 1360 states have internal predecessors, (1596), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:09,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1367 states to 1367 states and 1614 transitions. [2024-11-17 02:48:09,936 INFO L78 Accepts]: Start accepts. Automaton has 1367 states and 1614 transitions. Word has length 21 [2024-11-17 02:48:09,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:09,936 INFO L471 AbstractCegarLoop]: Abstraction has 1367 states and 1614 transitions. [2024-11-17 02:48:09,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 02:48:09,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states and 1614 transitions. [2024-11-17 02:48:09,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-17 02:48:09,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:09,937 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] [2024-11-17 02:48:09,944 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 (11)] Forceful destruction successful, exit code 0 [2024-11-17 02:48:10,138 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 02:48:10,138 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr591REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:10,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:10,139 INFO L85 PathProgramCache]: Analyzing trace with hash 606441473, now seen corresponding path program 1 times [2024-11-17 02:48:10,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:10,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987725929] [2024-11-17 02:48:10,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:10,139 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 02:48:10,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:10,141 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 02:48:10,141 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 02:48:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:10,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:48:10,320 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:10,336 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 02:48:10,336 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:10,337 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:10,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1987725929] [2024-11-17 02:48:10,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1987725929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:10,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:10,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:10,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467929015] [2024-11-17 02:48:10,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:10,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:10,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:10,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:10,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:10,339 INFO L87 Difference]: Start difference. First operand 1367 states and 1614 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 02:48:10,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:10,397 INFO L93 Difference]: Finished difference Result 1337 states and 1556 transitions. [2024-11-17 02:48:10,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:48:10,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 22 [2024-11-17 02:48:10,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:10,402 INFO L225 Difference]: With dead ends: 1337 [2024-11-17 02:48:10,403 INFO L226 Difference]: Without dead ends: 1337 [2024-11-17 02:48:10,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 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 02:48:10,403 INFO L432 NwaCegarLoop]: 1110 mSDtfsCounter, 48 mSDsluCounter, 2193 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3303 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 02:48:10,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3303 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:48:10,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1337 states. [2024-11-17 02:48:10,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1337 to 1337. [2024-11-17 02:48:10,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 858 states have (on average 1.7925407925407926) internal successors, (1538), 1330 states have internal predecessors, (1538), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:10,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1556 transitions. [2024-11-17 02:48:10,426 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1556 transitions. Word has length 22 [2024-11-17 02:48:10,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:10,427 INFO L471 AbstractCegarLoop]: Abstraction has 1337 states and 1556 transitions. [2024-11-17 02:48:10,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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 02:48:10,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1556 transitions. [2024-11-17 02:48:10,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-17 02:48:10,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:10,428 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] [2024-11-17 02:48:10,434 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 02:48:10,629 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 02:48:10,629 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr577REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:10,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:10,629 INFO L85 PathProgramCache]: Analyzing trace with hash 2096241655, now seen corresponding path program 1 times [2024-11-17 02:48:10,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:10,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599343797] [2024-11-17 02:48:10,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:10,630 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 02:48:10,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:10,632 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 02:48:10,632 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 02:48:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:10,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:48:10,796 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:10,800 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 02:48:10,879 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 02:48:10,879 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:10,879 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:10,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599343797] [2024-11-17 02:48:10,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599343797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:10,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:10,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:10,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767195199] [2024-11-17 02:48:10,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:10,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:10,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:10,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:10,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:10,881 INFO L87 Difference]: Start difference. First operand 1337 states and 1556 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 02:48:12,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:12,531 INFO L93 Difference]: Finished difference Result 1748 states and 2080 transitions. [2024-11-17 02:48:12,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:12,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 36 [2024-11-17 02:48:12,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:12,535 INFO L225 Difference]: With dead ends: 1748 [2024-11-17 02:48:12,536 INFO L226 Difference]: Without dead ends: 1748 [2024-11-17 02:48:12,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 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 02:48:12,536 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 816 mSDsluCounter, 873 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 1307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:12,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 1598 Invalid, 1307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-17 02:48:12,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2024-11-17 02:48:12,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1333. [2024-11-17 02:48:12,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1333 states, 858 states have (on average 1.7832167832167831) internal successors, (1530), 1326 states have internal predecessors, (1530), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:12,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1333 states to 1333 states and 1548 transitions. [2024-11-17 02:48:12,554 INFO L78 Accepts]: Start accepts. Automaton has 1333 states and 1548 transitions. Word has length 36 [2024-11-17 02:48:12,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:12,555 INFO L471 AbstractCegarLoop]: Abstraction has 1333 states and 1548 transitions. [2024-11-17 02:48:12,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 02:48:12,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1333 states and 1548 transitions. [2024-11-17 02:48:12,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-17 02:48:12,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:12,556 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] [2024-11-17 02:48:12,562 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 02:48:12,756 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 02:48:12,756 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr578REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:12,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:12,757 INFO L85 PathProgramCache]: Analyzing trace with hash 2096241656, now seen corresponding path program 1 times [2024-11-17 02:48:12,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:12,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535686603] [2024-11-17 02:48:12,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:12,757 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 02:48:12,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:12,761 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 02:48:12,764 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 02:48:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:12,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 02:48:12,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:12,974 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 02:48:13,167 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 02:48:13,168 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:13,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:13,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535686603] [2024-11-17 02:48:13,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535686603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:13,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:13,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:13,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412613289] [2024-11-17 02:48:13,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:13,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:13,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:13,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:13,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:13,171 INFO L87 Difference]: Start difference. First operand 1333 states and 1548 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 02:48:15,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:15,317 INFO L93 Difference]: Finished difference Result 1867 states and 2176 transitions. [2024-11-17 02:48:15,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:15,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 36 [2024-11-17 02:48:15,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:15,322 INFO L225 Difference]: With dead ends: 1867 [2024-11-17 02:48:15,322 INFO L226 Difference]: Without dead ends: 1867 [2024-11-17 02:48:15,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 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 02:48:15,323 INFO L432 NwaCegarLoop]: 1350 mSDtfsCounter, 561 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 2736 SdHoareTripleChecker+Invalid, 1410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:15,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 2736 Invalid, 1410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1407 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-17 02:48:15,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1867 states. [2024-11-17 02:48:15,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1867 to 1329. [2024-11-17 02:48:15,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1329 states, 858 states have (on average 1.7738927738927739) internal successors, (1522), 1322 states have internal predecessors, (1522), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:15,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 1540 transitions. [2024-11-17 02:48:15,340 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 1540 transitions. Word has length 36 [2024-11-17 02:48:15,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:15,342 INFO L471 AbstractCegarLoop]: Abstraction has 1329 states and 1540 transitions. [2024-11-17 02:48:15,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 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 02:48:15,342 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 1540 transitions. [2024-11-17 02:48:15,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-17 02:48:15,345 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:15,345 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] [2024-11-17 02:48:15,352 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 02:48:15,550 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 02:48:15,551 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr534REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:15,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:15,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1769108430, now seen corresponding path program 1 times [2024-11-17 02:48:15,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:15,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510558923] [2024-11-17 02:48:15,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:15,552 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 02:48:15,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:15,556 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 02:48:15,558 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 02:48:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:15,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:48:15,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:15,833 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 02:48:15,834 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:15,837 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:15,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510558923] [2024-11-17 02:48:15,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510558923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:15,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:15,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:15,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768974990] [2024-11-17 02:48:15,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:15,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:15,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:15,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:15,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:15,839 INFO L87 Difference]: Start difference. First operand 1329 states and 1540 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 02:48:15,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:15,899 INFO L93 Difference]: Finished difference Result 1317 states and 1520 transitions. [2024-11-17 02:48:15,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 02:48:15,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 56 [2024-11-17 02:48:15,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:15,904 INFO L225 Difference]: With dead ends: 1317 [2024-11-17 02:48:15,905 INFO L226 Difference]: Without dead ends: 1317 [2024-11-17 02:48:15,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 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 02:48:15,905 INFO L432 NwaCegarLoop]: 1104 mSDtfsCounter, 21 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3280 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 02:48:15,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3280 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:48:15,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2024-11-17 02:48:15,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1317. [2024-11-17 02:48:15,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1317 states, 846 states have (on average 1.7754137115839244) internal successors, (1502), 1310 states have internal predecessors, (1502), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:15,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1317 states to 1317 states and 1520 transitions. [2024-11-17 02:48:15,924 INFO L78 Accepts]: Start accepts. Automaton has 1317 states and 1520 transitions. Word has length 56 [2024-11-17 02:48:15,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:15,924 INFO L471 AbstractCegarLoop]: Abstraction has 1317 states and 1520 transitions. [2024-11-17 02:48:15,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 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 02:48:15,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1317 states and 1520 transitions. [2024-11-17 02:48:15,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-17 02:48:15,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:15,926 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] [2024-11-17 02:48:15,934 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 02:48:16,126 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 02:48:16,126 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr534REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:16,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:16,127 INFO L85 PathProgramCache]: Analyzing trace with hash -998117638, now seen corresponding path program 1 times [2024-11-17 02:48:16,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:16,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84763132] [2024-11-17 02:48:16,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:16,128 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 02:48:16,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:16,131 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 02:48:16,132 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 02:48:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:16,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 02:48:16,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:16,485 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 02:48:16,493 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 02:48:17,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-17 02:48:17,010 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 02:48:17,024 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-17 02:48:17,024 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 02:48:17,034 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 02:48:17,035 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:17,035 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:17,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84763132] [2024-11-17 02:48:17,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84763132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:17,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:17,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 02:48:17,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138860059] [2024-11-17 02:48:17,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:17,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:17,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:17,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:17,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:17,037 INFO L87 Difference]: Start difference. First operand 1317 states and 1520 transitions. Second operand has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 02:48:18,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:18,688 INFO L93 Difference]: Finished difference Result 1686 states and 2006 transitions. [2024-11-17 02:48:18,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:18,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2024-11-17 02:48:18,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:18,693 INFO L225 Difference]: With dead ends: 1686 [2024-11-17 02:48:18,693 INFO L226 Difference]: Without dead ends: 1686 [2024-11-17 02:48:18,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 61 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 02:48:18,694 INFO L432 NwaCegarLoop]: 568 mSDtfsCounter, 1799 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1802 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:18,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1802 Valid, 852 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 876 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-17 02:48:18,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2024-11-17 02:48:18,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1240. [2024-11-17 02:48:18,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1240 states, 807 states have (on average 1.7199504337050806) internal successors, (1388), 1233 states have internal predecessors, (1388), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:18,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1240 states to 1240 states and 1406 transitions. [2024-11-17 02:48:18,709 INFO L78 Accepts]: Start accepts. Automaton has 1240 states and 1406 transitions. Word has length 64 [2024-11-17 02:48:18,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:18,710 INFO L471 AbstractCegarLoop]: Abstraction has 1240 states and 1406 transitions. [2024-11-17 02:48:18,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.333333333333332) internal successors, (64), 4 states have internal predecessors, (64), 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 02:48:18,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1240 states and 1406 transitions. [2024-11-17 02:48:18,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-17 02:48:18,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:18,711 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] [2024-11-17 02:48:18,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2024-11-17 02:48:18,915 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 02:48:18,916 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr527REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:18,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:18,916 INFO L85 PathProgramCache]: Analyzing trace with hash -225652527, now seen corresponding path program 1 times [2024-11-17 02:48:18,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:18,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [338850206] [2024-11-17 02:48:18,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:18,917 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 02:48:18,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:18,918 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 02:48:18,919 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 02:48:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:19,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 02:48:19,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:19,182 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 02:48:19,196 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 02:48:19,217 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 02:48:19,226 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 02:48:19,226 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:19,226 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:19,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [338850206] [2024-11-17 02:48:19,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [338850206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:19,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:19,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:19,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475705657] [2024-11-17 02:48:19,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:19,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 02:48:19,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:19,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 02:48:19,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:19,228 INFO L87 Difference]: Start difference. First operand 1240 states and 1406 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 02:48:20,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:20,800 INFO L93 Difference]: Finished difference Result 1239 states and 1405 transitions. [2024-11-17 02:48:20,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 02:48:20,800 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 69 [2024-11-17 02:48:20,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:20,804 INFO L225 Difference]: With dead ends: 1239 [2024-11-17 02:48:20,804 INFO L226 Difference]: Without dead ends: 1239 [2024-11-17 02:48:20,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 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 02:48:20,805 INFO L432 NwaCegarLoop]: 1077 mSDtfsCounter, 2 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:20,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2815 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-17 02:48:20,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1239 states. [2024-11-17 02:48:20,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1239 to 1239. [2024-11-17 02:48:20,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1239 states, 807 states have (on average 1.7187112763320942) internal successors, (1387), 1232 states have internal predecessors, (1387), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:20,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1405 transitions. [2024-11-17 02:48:20,820 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1405 transitions. Word has length 69 [2024-11-17 02:48:20,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:20,820 INFO L471 AbstractCegarLoop]: Abstraction has 1239 states and 1405 transitions. [2024-11-17 02:48:20,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 02:48:20,821 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1405 transitions. [2024-11-17 02:48:20,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-17 02:48:20,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:20,821 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] [2024-11-17 02:48:20,830 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 02:48:21,022 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 02:48:21,022 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr528REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:21,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:21,022 INFO L85 PathProgramCache]: Analyzing trace with hash -225652526, now seen corresponding path program 1 times [2024-11-17 02:48:21,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:21,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606196585] [2024-11-17 02:48:21,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:21,023 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 02:48:21,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:21,026 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 02:48:21,027 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 02:48:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:21,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-17 02:48:21,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:21,332 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 02:48:21,352 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 02:48:21,357 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 02:48:21,399 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 02:48:21,410 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 02:48:21,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:21,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:21,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606196585] [2024-11-17 02:48:21,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606196585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:21,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:21,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:21,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996309818] [2024-11-17 02:48:21,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:21,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 02:48:21,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:21,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 02:48:21,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 02:48:21,412 INFO L87 Difference]: Start difference. First operand 1239 states and 1405 transitions. Second operand has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 02:48:23,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:23,287 INFO L93 Difference]: Finished difference Result 1238 states and 1404 transitions. [2024-11-17 02:48:23,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 02:48:23,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 69 [2024-11-17 02:48:23,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:23,291 INFO L225 Difference]: With dead ends: 1238 [2024-11-17 02:48:23,291 INFO L226 Difference]: Without dead ends: 1238 [2024-11-17 02:48:23,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 65 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 02:48:23,292 INFO L432 NwaCegarLoop]: 1077 mSDtfsCounter, 1 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:23,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2885 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-17 02:48:23,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1238 states. [2024-11-17 02:48:23,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1238 to 1238. [2024-11-17 02:48:23,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1238 states, 806 states have (on average 1.7196029776674937) internal successors, (1386), 1231 states have internal predecessors, (1386), 10 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-17 02:48:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1238 states to 1238 states and 1404 transitions. [2024-11-17 02:48:23,303 INFO L78 Accepts]: Start accepts. Automaton has 1238 states and 1404 transitions. Word has length 69 [2024-11-17 02:48:23,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:23,304 INFO L471 AbstractCegarLoop]: Abstraction has 1238 states and 1404 transitions. [2024-11-17 02:48:23,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.25) internal successors, (69), 5 states have internal predecessors, (69), 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 02:48:23,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1238 states and 1404 transitions. [2024-11-17 02:48:23,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-17 02:48:23,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:23,304 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:23,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2024-11-17 02:48:23,505 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 02:48:23,505 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:23,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:23,506 INFO L85 PathProgramCache]: Analyzing trace with hash 2037606574, now seen corresponding path program 1 times [2024-11-17 02:48:23,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:23,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1502275899] [2024-11-17 02:48:23,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:23,506 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 02:48:23,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:23,508 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 02:48:23,509 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 02:48:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:23,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 02:48:23,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:23,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 02:48:23,795 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 02:48:23,795 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:23,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1502275899] [2024-11-17 02:48:23,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1502275899] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 02:48:23,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 02:48:23,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 02:48:23,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634661352] [2024-11-17 02:48:23,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 02:48:23,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 02:48:23,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:23,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 02:48:23,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 02:48:23,797 INFO L87 Difference]: Start difference. First operand 1238 states and 1404 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 02:48:23,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:23,831 INFO L93 Difference]: Finished difference Result 1241 states and 1408 transitions. [2024-11-17 02:48:23,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 02:48:23,832 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 77 [2024-11-17 02:48:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:23,837 INFO L225 Difference]: With dead ends: 1241 [2024-11-17 02:48:23,837 INFO L226 Difference]: Without dead ends: 1241 [2024-11-17 02:48:23,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 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 02:48:23,837 INFO L432 NwaCegarLoop]: 1077 mSDtfsCounter, 0 mSDsluCounter, 2149 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:23,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3226 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-17 02:48:23,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1241 states. [2024-11-17 02:48:23,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1241 to 1241. [2024-11-17 02:48:23,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1241 states, 808 states have (on average 1.7190594059405941) internal successors, (1389), 1234 states have internal predecessors, (1389), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-17 02:48:23,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1241 states to 1241 states and 1408 transitions. [2024-11-17 02:48:23,857 INFO L78 Accepts]: Start accepts. Automaton has 1241 states and 1408 transitions. Word has length 77 [2024-11-17 02:48:23,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:23,858 INFO L471 AbstractCegarLoop]: Abstraction has 1241 states and 1408 transitions. [2024-11-17 02:48:23,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 02:48:23,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1241 states and 1408 transitions. [2024-11-17 02:48:23,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-17 02:48:23,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:23,860 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:23,870 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 (19)] Forceful destruction successful, exit code 0 [2024-11-17 02:48:24,062 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 02:48:24,062 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:24,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:24,062 INFO L85 PathProgramCache]: Analyzing trace with hash 697016905, now seen corresponding path program 1 times [2024-11-17 02:48:24,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:24,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711607452] [2024-11-17 02:48:24,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 02:48:24,063 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 02:48:24,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:24,064 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 02:48:24,065 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 02:48:24,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 02:48:24,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 02:48:24,363 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:24,379 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 02:48:24,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:24,432 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 02:48:24,432 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:24,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711607452] [2024-11-17 02:48:24,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711607452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:48:24,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:24,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-17 02:48:24,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902241553] [2024-11-17 02:48:24,433 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:24,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-17 02:48:24,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:24,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-17 02:48:24,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-17 02:48:24,435 INFO L87 Difference]: Start difference. First operand 1241 states and 1408 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:48:24,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:24,553 INFO L93 Difference]: Finished difference Result 1253 states and 1425 transitions. [2024-11-17 02:48:24,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 02:48:24,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2024-11-17 02:48:24,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:24,558 INFO L225 Difference]: With dead ends: 1253 [2024-11-17 02:48:24,558 INFO L226 Difference]: Without dead ends: 1253 [2024-11-17 02:48:24,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 148 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 02:48:24,559 INFO L432 NwaCegarLoop]: 1077 mSDtfsCounter, 6 mSDsluCounter, 2151 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:24,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3228 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-17 02:48:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2024-11-17 02:48:24,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1251. [2024-11-17 02:48:24,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 817 states have (on average 1.718482252141983) internal successors, (1404), 1243 states have internal predecessors, (1404), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-17 02:48:24,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1423 transitions. [2024-11-17 02:48:24,576 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1423 transitions. Word has length 78 [2024-11-17 02:48:24,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:24,576 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1423 transitions. [2024-11-17 02:48:24,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-17 02:48:24,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1423 transitions. [2024-11-17 02:48:24,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-17 02:48:24,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:24,577 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:24,586 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 (20)] Ended with exit code 0 [2024-11-17 02:48:24,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:48:24,778 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:24,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:24,779 INFO L85 PathProgramCache]: Analyzing trace with hash -628983954, now seen corresponding path program 2 times [2024-11-17 02:48:24,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:24,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [423129376] [2024-11-17 02:48:24,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 02:48:24,780 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 02:48:24,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:24,783 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:48:24,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-17 02:48:25,298 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 02:48:25,298 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:48:25,314 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 02:48:25,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:25,360 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 02:48:25,360 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:25,477 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 02:48:25,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:25,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [423129376] [2024-11-17 02:48:25,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [423129376] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:48:25,478 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:25,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-17 02:48:25,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067640606] [2024-11-17 02:48:25,478 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:25,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 02:48:25,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:25,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 02:48:25,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-17 02:48:25,479 INFO L87 Difference]: Start difference. First operand 1251 states and 1423 transitions. Second operand has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 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 02:48:25,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:25,810 INFO L93 Difference]: Finished difference Result 1266 states and 1445 transitions. [2024-11-17 02:48:25,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-17 02:48:25,811 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 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 81 [2024-11-17 02:48:25,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:25,814 INFO L225 Difference]: With dead ends: 1266 [2024-11-17 02:48:25,814 INFO L226 Difference]: Without dead ends: 1262 [2024-11-17 02:48:25,814 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 148 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 02:48:25,815 INFO L432 NwaCegarLoop]: 1077 mSDtfsCounter, 14 mSDsluCounter, 5373 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 6450 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:25,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 6450 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-17 02:48:25,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1262 states. [2024-11-17 02:48:25,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1262 to 1260. [2024-11-17 02:48:25,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1260 states, 826 states have (on average 1.7142857142857142) internal successors, (1416), 1252 states have internal predecessors, (1416), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-17 02:48:25,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1435 transitions. [2024-11-17 02:48:25,844 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1435 transitions. Word has length 81 [2024-11-17 02:48:25,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:25,844 INFO L471 AbstractCegarLoop]: Abstraction has 1260 states and 1435 transitions. [2024-11-17 02:48:25,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.142857142857143) internal successors, (86), 14 states have internal predecessors, (86), 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 02:48:25,845 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1435 transitions. [2024-11-17 02:48:25,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-17 02:48:25,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:25,845 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:25,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2024-11-17 02:48:26,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:48:26,046 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:26,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:26,047 INFO L85 PathProgramCache]: Analyzing trace with hash 867826062, now seen corresponding path program 3 times [2024-11-17 02:48:26,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:26,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [579873973] [2024-11-17 02:48:26,047 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 02:48:26,048 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 02:48:26,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:26,049 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:48:26,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-17 02:48:26,652 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-17 02:48:26,652 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:48:26,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-17 02:48:26,666 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:26,781 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 02:48:26,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:27,205 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 02:48:27,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:27,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [579873973] [2024-11-17 02:48:27,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [579873973] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:48:27,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:27,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-17 02:48:27,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546233812] [2024-11-17 02:48:27,205 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:27,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-17 02:48:27,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:27,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-17 02:48:27,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-17 02:48:27,208 INFO L87 Difference]: Start difference. First operand 1260 states and 1435 transitions. Second operand has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 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 02:48:28,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:28,509 INFO L93 Difference]: Finished difference Result 1284 states and 1474 transitions. [2024-11-17 02:48:28,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-17 02:48:28,510 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 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 87 [2024-11-17 02:48:28,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:28,513 INFO L225 Difference]: With dead ends: 1284 [2024-11-17 02:48:28,513 INFO L226 Difference]: Without dead ends: 1278 [2024-11-17 02:48:28,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-17 02:48:28,517 INFO L432 NwaCegarLoop]: 1078 mSDtfsCounter, 19 mSDsluCounter, 13969 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 15047 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:28,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 15047 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-17 02:48:28,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1278 states. [2024-11-17 02:48:28,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1278 to 1278. [2024-11-17 02:48:28,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 844 states have (on average 1.7049763033175356) internal successors, (1439), 1270 states have internal predecessors, (1439), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-17 02:48:28,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1458 transitions. [2024-11-17 02:48:28,539 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1458 transitions. Word has length 87 [2024-11-17 02:48:28,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:28,539 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1458 transitions. [2024-11-17 02:48:28,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 26 states have internal predecessors, (98), 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 02:48:28,539 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1458 transitions. [2024-11-17 02:48:28,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-17 02:48:28,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:28,540 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:28,550 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 (22)] Forceful destruction successful, exit code 0 [2024-11-17 02:48:28,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:48:28,741 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:28,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:28,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1493912114, now seen corresponding path program 4 times [2024-11-17 02:48:28,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:28,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494890704] [2024-11-17 02:48:28,742 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-17 02:48:28,742 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 02:48:28,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:28,743 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:48:28,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-17 02:48:29,188 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-17 02:48:29,189 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:48:29,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-17 02:48:29,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:29,554 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 02:48:29,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:30,686 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 02:48:30,686 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:30,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1494890704] [2024-11-17 02:48:30,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1494890704] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 02:48:30,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-17 02:48:30,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-17 02:48:30,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050399033] [2024-11-17 02:48:30,687 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-17 02:48:30,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-17 02:48:30,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-17 02:48:30,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-17 02:48:30,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-17 02:48:30,690 INFO L87 Difference]: Start difference. First operand 1278 states and 1458 transitions. Second operand has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 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 02:48:35,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-17 02:48:35,293 INFO L93 Difference]: Finished difference Result 1318 states and 1530 transitions. [2024-11-17 02:48:35,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-17 02:48:35,294 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 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 99 [2024-11-17 02:48:35,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-17 02:48:35,297 INFO L225 Difference]: With dead ends: 1318 [2024-11-17 02:48:35,297 INFO L226 Difference]: Without dead ends: 1314 [2024-11-17 02:48:35,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-17 02:48:35,300 INFO L432 NwaCegarLoop]: 1077 mSDtfsCounter, 31 mSDsluCounter, 25778 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 26855 SdHoareTripleChecker+Invalid, 2002 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-17 02:48:35,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 26855 Invalid, 2002 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-17 02:48:35,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1314 states. [2024-11-17 02:48:35,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1314 to 1312. [2024-11-17 02:48:35,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 878 states have (on average 1.6913439635535308) internal successors, (1485), 1304 states have internal predecessors, (1485), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2024-11-17 02:48:35,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1504 transitions. [2024-11-17 02:48:35,316 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1504 transitions. Word has length 99 [2024-11-17 02:48:35,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-17 02:48:35,316 INFO L471 AbstractCegarLoop]: Abstraction has 1312 states and 1504 transitions. [2024-11-17 02:48:35,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 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 02:48:35,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1504 transitions. [2024-11-17 02:48:35,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-17 02:48:35,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-17 02:48:35,317 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 02:48:35,331 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 (23)] Ended with exit code 0 [2024-11-17 02:48:35,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:48:35,518 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr523REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 629 more)] === [2024-11-17 02:48:35,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 02:48:35,519 INFO L85 PathProgramCache]: Analyzing trace with hash 2130799342, now seen corresponding path program 5 times [2024-11-17 02:48:35,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-17 02:48:35,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [567057577] [2024-11-17 02:48:35,519 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-17 02:48:35,520 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-17 02:48:35,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-17 02:48:35,521 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-17 02:48:35,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-17 02:48:36,609 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-17 02:48:36,609 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 02:48:36,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-17 02:48:36,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 02:48:36,641 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 02:48:36,771 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-17 02:48:36,771 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 02:48:36,808 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 02:48:36,900 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 02:48:37,773 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-17 02:48:37,773 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 02:48:37,821 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 02:48:37,850 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 02:48:37,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 02:48:38,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-17 02:48:38,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [567057577] [2024-11-17 02:48:38,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [567057577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 02:48:38,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1099646605] [2024-11-17 02:48:38,231 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-17 02:48:38,231 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-17 02:48:38,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-17 02:48:38,232 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-17 02:48:38,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process