./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.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 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 16:59:23,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 16:59:23,940 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 16:59:23,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 16:59:23,946 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 16:59:23,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 16:59:23,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 16:59:23,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 16:59:23,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 16:59:23,978 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 16:59:23,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 16:59:23,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 16:59:23,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 16:59:23,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 16:59:23,981 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 16:59:23,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 16:59:23,982 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 16:59:23,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 16:59:23,982 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 16:59:23,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 16:59:23,983 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 16:59:23,987 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 16:59:23,987 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 16:59:23,987 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 16:59:23,987 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 16:59:23,988 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 16:59:23,988 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 16:59:23,988 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 16:59:23,988 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 16:59:23,989 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 16:59:23,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 16:59:23,989 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 16:59:23,989 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 16:59:23,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 16:59:23,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 16:59:23,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 16:59:23,990 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 16:59:23,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 16:59:23,991 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 16:59:23,991 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 16:59:23,991 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 16:59:23,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 16:59:23,992 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2024-11-20 16:59:24,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 16:59:24,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 16:59:24,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 16:59:24,299 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 16:59:24,300 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 16:59:24,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i [2024-11-20 16:59:25,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 16:59:26,070 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 16:59:26,071 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i [2024-11-20 16:59:26,098 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a3423e6d/8409c4df43b3497e9a14389a3df77410/FLAG6016b986c [2024-11-20 16:59:26,115 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2a3423e6d/8409c4df43b3497e9a14389a3df77410 [2024-11-20 16:59:26,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 16:59:26,120 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 16:59:26,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 16:59:26,123 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 16:59:26,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 16:59:26,129 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:59:26" (1/1) ... [2024-11-20 16:59:26,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18c736d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:26, skipping insertion in model container [2024-11-20 16:59:26,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:59:26" (1/1) ... [2024-11-20 16:59:26,195 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 16:59:26,612 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,659 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,667 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,671 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,683 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,723 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,729 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,731 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,738 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,752 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,757 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,759 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,763 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,764 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,765 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,771 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:26,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:59:26,802 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) [2024-11-20 16:59:26,803 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2458b2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:26, skipping insertion in model container [2024-11-20 16:59:26,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 16:59:26,804 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-20 16:59:26,805 INFO L158 Benchmark]: Toolchain (without parser) took 684.63ms. Allocated memory is still 144.7MB. Free memory was 108.7MB in the beginning and 83.7MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-20 16:59:26,806 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 16:59:26,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.97ms. Allocated memory is still 144.7MB. Free memory was 108.1MB in the beginning and 83.7MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-20 16:59:26,808 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.97ms. Allocated memory is still 144.7MB. Free memory was 108.1MB in the beginning and 83.7MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 754]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.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 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 16:59:28,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 16:59:28,985 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-20 16:59:28,991 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 16:59:28,992 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 16:59:29,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 16:59:29,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 16:59:29,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 16:59:29,028 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 16:59:29,028 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 16:59:29,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 16:59:29,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 16:59:29,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 16:59:29,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 16:59:29,031 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 16:59:29,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 16:59:29,032 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 16:59:29,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 16:59:29,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 16:59:29,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 16:59:29,033 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 16:59:29,034 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 16:59:29,034 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 16:59:29,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 16:59:29,035 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 16:59:29,035 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 16:59:29,035 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 16:59:29,036 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 16:59:29,036 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 16:59:29,036 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 16:59:29,036 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 16:59:29,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 16:59:29,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 16:59:29,037 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 16:59:29,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 16:59:29,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 16:59:29,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 16:59:29,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 16:59:29,043 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 16:59:29,043 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 16:59:29,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 16:59:29,044 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 16:59:29,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 16:59:29,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 16:59:29,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2024-11-20 16:59:29,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 16:59:29,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 16:59:29,394 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 16:59:29,396 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 16:59:29,396 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 16:59:29,397 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i [2024-11-20 16:59:30,842 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 16:59:31,175 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 16:59:31,178 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test4-2.i [2024-11-20 16:59:31,199 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77f6346b6/7fd3aa2b56814b30a02e22e946bf2aa2/FLAG6f4b520ec [2024-11-20 16:59:31,424 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77f6346b6/7fd3aa2b56814b30a02e22e946bf2aa2 [2024-11-20 16:59:31,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 16:59:31,429 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 16:59:31,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 16:59:31,430 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 16:59:31,436 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 16:59:31,436 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:59:31" (1/1) ... [2024-11-20 16:59:31,437 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3151722e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:31, skipping insertion in model container [2024-11-20 16:59:31,438 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:59:31" (1/1) ... [2024-11-20 16:59:31,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 16:59:31,972 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,012 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,016 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,020 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,033 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,075 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,079 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,085 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,093 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,105 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,111 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,113 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,114 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,115 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,115 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,118 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:59:32,136 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-20 16:59:32,150 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 16:59:32,171 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,182 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,184 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,185 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,189 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,213 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,215 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,217 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,219 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,224 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,225 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,226 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,226 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,227 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,228 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,230 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:59:32,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:59:32,238 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 16:59:32,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:59:32,350 INFO L204 MainTranslator]: Completed translation [2024-11-20 16:59:32,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32 WrapperNode [2024-11-20 16:59:32,351 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 16:59:32,353 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 16:59:32,353 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 16:59:32,353 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 16:59:32,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,407 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,499 INFO L138 Inliner]: procedures = 179, calls = 377, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1311 [2024-11-20 16:59:32,499 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 16:59:32,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 16:59:32,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 16:59:32,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 16:59:32,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,512 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,528 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,655 INFO L175 MemorySlicer]: Split 357 memory accesses to 2 slices as follows [355, 2]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2]. The 90 writes are split as follows [90, 0]. [2024-11-20 16:59:32,655 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,656 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,712 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,739 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,749 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,768 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 16:59:32,769 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 16:59:32,769 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 16:59:32,770 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 16:59:32,770 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (1/1) ... [2024-11-20 16:59:32,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 16:59:32,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 16:59:32,807 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) [2024-11-20 16:59:32,814 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 [2024-11-20 16:59:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-20 16:59:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-20 16:59:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-20 16:59:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-20 16:59:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-20 16:59:32,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-20 16:59:32,851 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-20 16:59:32,851 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-20 16:59:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 16:59:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 16:59:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 16:59:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 16:59:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 16:59:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 16:59:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 16:59:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-20 16:59:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-20 16:59:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-20 16:59:32,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-20 16:59:32,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 16:59:32,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 16:59:33,068 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 16:59:33,071 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 16:59:33,075 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-20 16:59:33,128 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-20 16:59:37,682 INFO L? ?]: Removed 1538 outVars from TransFormulas that were not future-live. [2024-11-20 16:59:37,683 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 16:59:37,725 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 16:59:37,725 INFO L316 CfgBuilder]: Removed 69 assume(true) statements. [2024-11-20 16:59:37,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:59:37 BoogieIcfgContainer [2024-11-20 16:59:37,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 16:59:37,727 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 16:59:37,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 16:59:37,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 16:59:37,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:59:31" (1/3) ... [2024-11-20 16:59:37,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138b25b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:59:37, skipping insertion in model container [2024-11-20 16:59:37,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:59:32" (2/3) ... [2024-11-20 16:59:37,734 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@138b25b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:59:37, skipping insertion in model container [2024-11-20 16:59:37,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:59:37" (3/3) ... [2024-11-20 16:59:37,737 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test4-2.i [2024-11-20 16:59:37,752 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 16:59:37,753 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 733 error locations. [2024-11-20 16:59:37,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 16:59:37,849 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;@426cc631, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 16:59:37,849 INFO L334 AbstractCegarLoop]: Starting to check reachability of 733 error locations. [2024-11-20 16:59:37,859 INFO L276 IsEmpty]: Start isEmpty. Operand has 1431 states, 696 states have (on average 2.2456896551724137) internal successors, (1563), 1423 states have internal predecessors, (1563), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 16:59:37,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-20 16:59:37,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:37,865 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-20 16:59:37,866 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr732ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:37,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:37,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1481810, now seen corresponding path program 1 times [2024-11-20 16:59:37,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:37,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163320586] [2024-11-20 16:59:37,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:37,884 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 [2024-11-20 16:59:37,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:37,886 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) [2024-11-20 16:59:37,887 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 [2024-11-20 16:59:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:38,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 16:59:38,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:38,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:38,115 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:38,119 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:38,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163320586] [2024-11-20 16:59:38,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1163320586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:38,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:38,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 16:59:38,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249576711] [2024-11-20 16:59:38,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:38,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:59:38,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:38,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:59:38,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:59:38,163 INFO L87 Difference]: Start difference. First operand has 1431 states, 696 states have (on average 2.2456896551724137) internal successors, (1563), 1423 states have internal predecessors, (1563), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:59:40,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:40,064 INFO L93 Difference]: Finished difference Result 1621 states and 1700 transitions. [2024-11-20 16:59:40,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:59:40,067 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-20 16:59:40,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:40,085 INFO L225 Difference]: With dead ends: 1621 [2024-11-20 16:59:40,085 INFO L226 Difference]: Without dead ends: 1617 [2024-11-20 16:59:40,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:59:40,090 INFO L432 NwaCegarLoop]: 1382 mSDtfsCounter, 219 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-20 16:59:40,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 2136 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-20 16:59:40,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-11-20 16:59:40,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1429. [2024-11-20 16:59:40,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 705 states have (on average 2.120567375886525) internal successors, (1495), 1421 states have internal predecessors, (1495), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 16:59:40,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1507 transitions. [2024-11-20 16:59:40,188 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1507 transitions. Word has length 4 [2024-11-20 16:59:40,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:40,189 INFO L471 AbstractCegarLoop]: Abstraction has 1429 states and 1507 transitions. [2024-11-20 16:59:40,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:59:40,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1507 transitions. [2024-11-20 16:59:40,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-20 16:59:40,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:40,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-20 16:59:40,194 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 (2)] Forceful destruction successful, exit code 0 [2024-11-20 16:59:40,393 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 [2024-11-20 16:59:40,393 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:40,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:40,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1422076526, now seen corresponding path program 1 times [2024-11-20 16:59:40,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:40,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1130989355] [2024-11-20 16:59:40,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:40,396 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 [2024-11-20 16:59:40,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:40,399 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) [2024-11-20 16:59:40,400 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 [2024-11-20 16:59:40,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:40,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:59:40,522 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:40,557 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 [2024-11-20 16:59:40,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:40,567 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:40,567 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:40,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1130989355] [2024-11-20 16:59:40,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1130989355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:40,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:40,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 16:59:40,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159451072] [2024-11-20 16:59:40,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:40,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:59:40,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:40,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:59:40,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:59:40,571 INFO L87 Difference]: Start difference. First operand 1429 states and 1507 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:59:42,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:42,368 INFO L93 Difference]: Finished difference Result 1335 states and 1411 transitions. [2024-11-20 16:59:42,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:59:42,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-20 16:59:42,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:42,373 INFO L225 Difference]: With dead ends: 1335 [2024-11-20 16:59:42,373 INFO L226 Difference]: Without dead ends: 1335 [2024-11-20 16:59:42,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:59:42,374 INFO L432 NwaCegarLoop]: 770 mSDtfsCounter, 1029 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-20 16:59:42,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 880 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-20 16:59:42,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2024-11-20 16:59:42,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1335. [2024-11-20 16:59:42,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 705 states have (on average 1.9843971631205675) internal successors, (1399), 1327 states have internal predecessors, (1399), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 16:59:42,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1411 transitions. [2024-11-20 16:59:42,399 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1411 transitions. Word has length 6 [2024-11-20 16:59:42,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:42,400 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1411 transitions. [2024-11-20 16:59:42,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:59:42,400 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1411 transitions. [2024-11-20 16:59:42,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-20 16:59:42,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:42,401 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-20 16:59:42,406 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-20 16:59:42,601 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 [2024-11-20 16:59:42,602 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:42,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:42,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1422076527, now seen corresponding path program 1 times [2024-11-20 16:59:42,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:42,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668331104] [2024-11-20 16:59:42,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:42,603 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 [2024-11-20 16:59:42,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:42,606 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) [2024-11-20 16:59:42,607 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 [2024-11-20 16:59:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:42,738 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 16:59:42,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:42,754 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 [2024-11-20 16:59:42,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:42,774 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:42,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:42,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668331104] [2024-11-20 16:59:42,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668331104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:42,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:42,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 16:59:42,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071726152] [2024-11-20 16:59:42,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:42,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:59:42,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:42,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:59:42,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:59:42,780 INFO L87 Difference]: Start difference. First operand 1335 states and 1411 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:59:45,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:45,169 INFO L93 Difference]: Finished difference Result 1655 states and 1751 transitions. [2024-11-20 16:59:45,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:59:45,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-20 16:59:45,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:45,174 INFO L225 Difference]: With dead ends: 1655 [2024-11-20 16:59:45,175 INFO L226 Difference]: Without dead ends: 1655 [2024-11-20 16:59:45,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:59:45,176 INFO L432 NwaCegarLoop]: 1136 mSDtfsCounter, 522 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-20 16:59:45,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1684 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-20 16:59:45,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-11-20 16:59:45,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1502. [2024-11-20 16:59:45,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 882 states have (on average 1.9489795918367347) internal successors, (1719), 1494 states have internal predecessors, (1719), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 16:59:45,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1731 transitions. [2024-11-20 16:59:45,202 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1731 transitions. Word has length 6 [2024-11-20 16:59:45,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:45,203 INFO L471 AbstractCegarLoop]: Abstraction has 1502 states and 1731 transitions. [2024-11-20 16:59:45,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:59:45,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1731 transitions. [2024-11-20 16:59:45,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-20 16:59:45,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:45,204 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:59:45,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-20 16:59:45,404 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 [2024-11-20 16:59:45,405 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:45,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:45,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1136358850, now seen corresponding path program 1 times [2024-11-20 16:59:45,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:45,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [364208662] [2024-11-20 16:59:45,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:45,406 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 [2024-11-20 16:59:45,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:45,410 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) [2024-11-20 16:59:45,412 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 [2024-11-20 16:59:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:45,511 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 16:59:45,513 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:45,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:45,554 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:45,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:45,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [364208662] [2024-11-20 16:59:45,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [364208662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:45,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:45,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:59:45,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117086910] [2024-11-20 16:59:45,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:45,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:59:45,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:45,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:59:45,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:59:45,557 INFO L87 Difference]: Start difference. First operand 1502 states and 1731 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-20 16:59:46,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:46,212 INFO L93 Difference]: Finished difference Result 2271 states and 2626 transitions. [2024-11-20 16:59:46,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:59:46,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2024-11-20 16:59:46,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:46,219 INFO L225 Difference]: With dead ends: 2271 [2024-11-20 16:59:46,220 INFO L226 Difference]: Without dead ends: 2271 [2024-11-20 16:59:46,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:59:46,222 INFO L432 NwaCegarLoop]: 1368 mSDtfsCounter, 691 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 3857 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 16:59:46,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 3857 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 16:59:46,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2024-11-20 16:59:46,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 1972. [2024-11-20 16:59:46,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1352 states have (on average 1.9289940828402368) internal successors, (2608), 1961 states have internal predecessors, (2608), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:59:46,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2626 transitions. [2024-11-20 16:59:46,273 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2626 transitions. Word has length 7 [2024-11-20 16:59:46,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:46,274 INFO L471 AbstractCegarLoop]: Abstraction has 1972 states and 2626 transitions. [2024-11-20 16:59:46,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-11-20 16:59:46,274 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2626 transitions. [2024-11-20 16:59:46,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-20 16:59:46,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:46,278 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:59:46,282 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 (5)] Forceful destruction successful, exit code 0 [2024-11-20 16:59:46,480 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 [2024-11-20 16:59:46,480 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr627REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:46,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:46,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1119196844, now seen corresponding path program 1 times [2024-11-20 16:59:46,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:46,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [506784987] [2024-11-20 16:59:46,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:46,482 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 [2024-11-20 16:59:46,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:46,486 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) [2024-11-20 16:59:46,487 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 [2024-11-20 16:59:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:46,593 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:59:46,595 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:46,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:46,649 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:46,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:46,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [506784987] [2024-11-20 16:59:46,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [506784987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:46,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:46,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:59:46,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115196942] [2024-11-20 16:59:46,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:46,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:59:46,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:46,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:59:46,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:59:46,652 INFO L87 Difference]: Start difference. First operand 1972 states and 2626 transitions. Second operand has 3 states, 3 states have (on average 3.0) 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) [2024-11-20 16:59:46,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:46,789 INFO L93 Difference]: Finished difference Result 2049 states and 2567 transitions. [2024-11-20 16:59:46,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:59:46,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) 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 [2024-11-20 16:59:46,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:46,796 INFO L225 Difference]: With dead ends: 2049 [2024-11-20 16:59:46,796 INFO L226 Difference]: Without dead ends: 2049 [2024-11-20 16:59:46,797 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 [2024-11-20 16:59:46,798 INFO L432 NwaCegarLoop]: 1440 mSDtfsCounter, 316 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 16:59:46,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 2744 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 16:59:46,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2024-11-20 16:59:46,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 1832. [2024-11-20 16:59:46,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1832 states, 1212 states have (on average 1.938118811881188) internal successors, (2349), 1821 states have internal predecessors, (2349), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:59:46,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2367 transitions. [2024-11-20 16:59:46,834 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2367 transitions. Word has length 9 [2024-11-20 16:59:46,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:46,835 INFO L471 AbstractCegarLoop]: Abstraction has 1832 states and 2367 transitions. [2024-11-20 16:59:46,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) 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) [2024-11-20 16:59:46,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2367 transitions. [2024-11-20 16:59:46,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-20 16:59:46,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:46,836 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:59:46,841 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 [2024-11-20 16:59:47,040 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 [2024-11-20 16:59:47,041 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:47,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:47,041 INFO L85 PathProgramCache]: Analyzing trace with hash 242137368, now seen corresponding path program 1 times [2024-11-20 16:59:47,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:47,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801541219] [2024-11-20 16:59:47,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:47,042 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 [2024-11-20 16:59:47,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:47,043 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) [2024-11-20 16:59:47,044 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 [2024-11-20 16:59:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:47,186 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 16:59:47,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:47,200 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:47,201 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:47,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801541219] [2024-11-20 16:59:47,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801541219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:47,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:47,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:59:47,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948174234] [2024-11-20 16:59:47,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:47,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:59:47,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:47,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:59:47,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:59:47,203 INFO L87 Difference]: Start difference. First operand 1832 states and 2367 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:59:47,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:47,251 INFO L93 Difference]: Finished difference Result 1772 states and 2281 transitions. [2024-11-20 16:59:47,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:59:47,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-20 16:59:47,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:47,257 INFO L225 Difference]: With dead ends: 1772 [2024-11-20 16:59:47,258 INFO L226 Difference]: Without dead ends: 1772 [2024-11-20 16:59:47,258 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:59:47,258 INFO L432 NwaCegarLoop]: 1316 mSDtfsCounter, 71 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2569 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 [2024-11-20 16:59:47,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2569 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 16:59:47,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2024-11-20 16:59:47,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1772. [2024-11-20 16:59:47,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1176 states have (on average 1.9243197278911566) internal successors, (2263), 1761 states have internal predecessors, (2263), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:59:47,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2281 transitions. [2024-11-20 16:59:47,284 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2281 transitions. Word has length 12 [2024-11-20 16:59:47,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:47,285 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 2281 transitions. [2024-11-20 16:59:47,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:59:47,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2281 transitions. [2024-11-20 16:59:47,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-20 16:59:47,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:47,286 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:59:47,291 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 [2024-11-20 16:59:47,486 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 [2024-11-20 16:59:47,487 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr629REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:47,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:47,487 INFO L85 PathProgramCache]: Analyzing trace with hash 169603906, now seen corresponding path program 1 times [2024-11-20 16:59:47,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:47,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522024639] [2024-11-20 16:59:47,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:47,488 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 [2024-11-20 16:59:47,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:47,489 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) [2024-11-20 16:59:47,490 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 [2024-11-20 16:59:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:47,594 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 16:59:47,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:47,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:47,654 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:47,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:47,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522024639] [2024-11-20 16:59:47,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522024639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:47,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:47,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:59:47,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803304173] [2024-11-20 16:59:47,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:47,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:59:47,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:47,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:59:47,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:59:47,657 INFO L87 Difference]: Start difference. First operand 1772 states and 2281 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:59:48,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:48,300 INFO L93 Difference]: Finished difference Result 1965 states and 2480 transitions. [2024-11-20 16:59:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:59:48,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-20 16:59:48,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:48,305 INFO L225 Difference]: With dead ends: 1965 [2024-11-20 16:59:48,305 INFO L226 Difference]: Without dead ends: 1959 [2024-11-20 16:59:48,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:59:48,306 INFO L432 NwaCegarLoop]: 1397 mSDtfsCounter, 275 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 16:59:48,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 3836 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 16:59:48,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2024-11-20 16:59:48,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1766. [2024-11-20 16:59:48,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1170 states have (on average 1.9282051282051282) internal successors, (2256), 1755 states have internal predecessors, (2256), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:59:48,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2274 transitions. [2024-11-20 16:59:48,333 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2274 transitions. Word has length 12 [2024-11-20 16:59:48,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:48,333 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2274 transitions. [2024-11-20 16:59:48,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:59:48,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2274 transitions. [2024-11-20 16:59:48,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-20 16:59:48,334 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:48,334 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:59:48,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-20 16:59:48,534 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 [2024-11-20 16:59:48,535 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:48,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:48,535 INFO L85 PathProgramCache]: Analyzing trace with hash 765772946, now seen corresponding path program 1 times [2024-11-20 16:59:48,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:48,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333550206] [2024-11-20 16:59:48,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:48,536 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 [2024-11-20 16:59:48,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:48,537 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) [2024-11-20 16:59:48,538 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 [2024-11-20 16:59:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:48,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:59:48,679 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:48,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:48,706 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:48,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:48,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333550206] [2024-11-20 16:59:48,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333550206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:48,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:48,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:59:48,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753717135] [2024-11-20 16:59:48,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:48,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:59:48,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:48,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:59:48,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:59:48,709 INFO L87 Difference]: Start difference. First operand 1766 states and 2274 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) [2024-11-20 16:59:48,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:48,798 INFO L93 Difference]: Finished difference Result 1736 states and 2216 transitions. [2024-11-20 16:59:48,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 16:59:48,799 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 [2024-11-20 16:59:48,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:48,805 INFO L225 Difference]: With dead ends: 1736 [2024-11-20 16:59:48,806 INFO L226 Difference]: Without dead ends: 1736 [2024-11-20 16:59:48,806 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 [2024-11-20 16:59:48,807 INFO L432 NwaCegarLoop]: 1271 mSDtfsCounter, 48 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3787 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 [2024-11-20 16:59:48,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3787 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 16:59:48,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-20 16:59:48,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1736. [2024-11-20 16:59:48,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1154 states have (on average 1.9046793760831888) internal successors, (2198), 1725 states have internal predecessors, (2198), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:59:48,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2216 transitions. [2024-11-20 16:59:48,841 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2216 transitions. Word has length 14 [2024-11-20 16:59:48,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:48,842 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2216 transitions. [2024-11-20 16:59:48,842 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) [2024-11-20 16:59:48,842 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2216 transitions. [2024-11-20 16:59:48,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-20 16:59:48,843 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:48,844 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] [2024-11-20 16:59:48,849 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 [2024-11-20 16:59:49,044 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 [2024-11-20 16:59:49,045 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:49,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:49,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1067586272, now seen corresponding path program 1 times [2024-11-20 16:59:49,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:49,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378341809] [2024-11-20 16:59:49,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:49,046 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 [2024-11-20 16:59:49,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:49,047 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) [2024-11-20 16:59:49,049 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 [2024-11-20 16:59:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:49,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 16:59:49,184 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:49,190 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 [2024-11-20 16:59:49,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:49,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:49,254 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:49,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378341809] [2024-11-20 16:59:49,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378341809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:49,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:49,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:59:49,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552107970] [2024-11-20 16:59:49,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:49,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:59:49,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:49,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:59:49,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:59:49,256 INFO L87 Difference]: Start difference. First operand 1736 states and 2216 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-20 16:59:51,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:51,303 INFO L93 Difference]: Finished difference Result 1740 states and 2216 transitions. [2024-11-20 16:59:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:59:51,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2024-11-20 16:59:51,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:51,308 INFO L225 Difference]: With dead ends: 1740 [2024-11-20 16:59:51,308 INFO L226 Difference]: Without dead ends: 1740 [2024-11-20 16:59:51,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:59:51,309 INFO L432 NwaCegarLoop]: 724 mSDtfsCounter, 966 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-20 16:59:51,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 1401 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-20 16:59:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2024-11-20 16:59:51,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1732. [2024-11-20 16:59:51,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1154 states have (on average 1.8977469670710572) internal successors, (2190), 1721 states have internal predecessors, (2190), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:59:51,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2208 transitions. [2024-11-20 16:59:51,331 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2208 transitions. Word has length 28 [2024-11-20 16:59:51,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:51,332 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2208 transitions. [2024-11-20 16:59:51,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-20 16:59:51,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2208 transitions. [2024-11-20 16:59:51,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-20 16:59:51,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:51,333 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] [2024-11-20 16:59:51,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-20 16:59:51,533 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 [2024-11-20 16:59:51,534 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:51,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:51,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1067586273, now seen corresponding path program 1 times [2024-11-20 16:59:51,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:51,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723875071] [2024-11-20 16:59:51,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:51,535 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 [2024-11-20 16:59:51,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:51,538 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) [2024-11-20 16:59:51,539 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 [2024-11-20 16:59:51,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:51,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 16:59:51,689 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:51,701 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 [2024-11-20 16:59:51,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:51,839 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:51,839 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:51,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723875071] [2024-11-20 16:59:51,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723875071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:51,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:51,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:59:51,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942316515] [2024-11-20 16:59:51,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:51,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:59:51,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:51,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:59:51,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:59:51,841 INFO L87 Difference]: Start difference. First operand 1732 states and 2208 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-20 16:59:54,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:54,502 INFO L93 Difference]: Finished difference Result 1889 states and 2228 transitions. [2024-11-20 16:59:54,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:59:54,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2024-11-20 16:59:54,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:54,507 INFO L225 Difference]: With dead ends: 1889 [2024-11-20 16:59:54,508 INFO L226 Difference]: Without dead ends: 1889 [2024-11-20 16:59:54,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:59:54,508 INFO L432 NwaCegarLoop]: 1400 mSDtfsCounter, 455 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-20 16:59:54,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 2717 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-20 16:59:54,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2024-11-20 16:59:54,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1728. [2024-11-20 16:59:54,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1728 states, 1154 states have (on average 1.8908145580589255) internal successors, (2182), 1717 states have internal predecessors, (2182), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:59:54,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2200 transitions. [2024-11-20 16:59:54,530 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2200 transitions. Word has length 28 [2024-11-20 16:59:54,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:54,531 INFO L471 AbstractCegarLoop]: Abstraction has 1728 states and 2200 transitions. [2024-11-20 16:59:54,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2024-11-20 16:59:54,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2200 transitions. [2024-11-20 16:59:54,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-20 16:59:54,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:54,532 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] [2024-11-20 16:59:54,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-20 16:59:54,732 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 [2024-11-20 16:59:54,733 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:54,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:54,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1271201802, now seen corresponding path program 1 times [2024-11-20 16:59:54,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:54,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54591333] [2024-11-20 16:59:54,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:54,734 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 [2024-11-20 16:59:54,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:54,735 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) [2024-11-20 16:59:54,736 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 [2024-11-20 16:59:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:54,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:59:54,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:54,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:54,962 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:54,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:54,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54591333] [2024-11-20 16:59:54,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54591333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:54,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:54,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:59:54,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667942688] [2024-11-20 16:59:54,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:54,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:59:54,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:54,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:59:54,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:59:54,964 INFO L87 Difference]: Start difference. First operand 1728 states and 2200 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-11-20 16:59:55,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:55,023 INFO L93 Difference]: Finished difference Result 1716 states and 2180 transitions. [2024-11-20 16:59:55,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 16:59:55,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2024-11-20 16:59:55,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:55,041 INFO L225 Difference]: With dead ends: 1716 [2024-11-20 16:59:55,041 INFO L226 Difference]: Without dead ends: 1716 [2024-11-20 16:59:55,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:59:55,042 INFO L432 NwaCegarLoop]: 1265 mSDtfsCounter, 21 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3764 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 [2024-11-20 16:59:55,042 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3764 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 16:59:55,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-11-20 16:59:55,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1716. [2024-11-20 16:59:55,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1142 states have (on average 1.893169877408056) internal successors, (2162), 1705 states have internal predecessors, (2162), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:59:55,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 2180 transitions. [2024-11-20 16:59:55,064 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 2180 transitions. Word has length 47 [2024-11-20 16:59:55,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:55,065 INFO L471 AbstractCegarLoop]: Abstraction has 1716 states and 2180 transitions. [2024-11-20 16:59:55,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-11-20 16:59:55,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 2180 transitions. [2024-11-20 16:59:55,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-20 16:59:55,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:55,071 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] [2024-11-20 16:59:55,077 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 [2024-11-20 16:59:55,271 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 [2024-11-20 16:59:55,271 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:55,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:55,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2058762942, now seen corresponding path program 1 times [2024-11-20 16:59:55,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:55,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979380396] [2024-11-20 16:59:55,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:55,273 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 [2024-11-20 16:59:55,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:55,276 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) [2024-11-20 16:59:55,277 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 [2024-11-20 16:59:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:55,633 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 16:59:55,637 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:55,648 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 [2024-11-20 16:59:55,658 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 [2024-11-20 16:59:56,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 16:59:56,146 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 [2024-11-20 16:59:56,165 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-20 16:59:56,166 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 [2024-11-20 16:59:56,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:56,183 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:56,183 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:56,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979380396] [2024-11-20 16:59:56,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979380396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:56,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:56,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:59:56,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028056380] [2024-11-20 16:59:56,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:56,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:59:56,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:56,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:59:56,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:59:56,186 INFO L87 Difference]: Start difference. First operand 1716 states and 2180 transitions. Second operand has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-20 16:59:57,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:59:57,925 INFO L93 Difference]: Finished difference Result 1632 states and 2055 transitions. [2024-11-20 16:59:57,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:59:57,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 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 55 [2024-11-20 16:59:57,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:59:57,930 INFO L225 Difference]: With dead ends: 1632 [2024-11-20 16:59:57,930 INFO L226 Difference]: Without dead ends: 1632 [2024-11-20 16:59:57,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:59:57,930 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 1764 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-20 16:59:57,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 655 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-20 16:59:57,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-11-20 16:59:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1455. [2024-11-20 16:59:57,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 965 states have (on average 1.7689119170984455) internal successors, (1707), 1444 states have internal predecessors, (1707), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:59:57,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1725 transitions. [2024-11-20 16:59:57,957 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1725 transitions. Word has length 55 [2024-11-20 16:59:57,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:59:57,958 INFO L471 AbstractCegarLoop]: Abstraction has 1455 states and 1725 transitions. [2024-11-20 16:59:57,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 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) [2024-11-20 16:59:57,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1725 transitions. [2024-11-20 16:59:57,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 16:59:57,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:59:57,959 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:59:57,969 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 (13)] Ended with exit code 0 [2024-11-20 16:59:58,163 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 [2024-11-20 16:59:58,164 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:59:58,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:59:58,165 INFO L85 PathProgramCache]: Analyzing trace with hash 299959545, now seen corresponding path program 1 times [2024-11-20 16:59:58,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:59:58,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [79847754] [2024-11-20 16:59:58,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:59:58,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:59:58,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:59:58,167 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) [2024-11-20 16:59:58,169 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 [2024-11-20 16:59:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:59:58,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 16:59:58,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:59:58,404 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 [2024-11-20 16:59:58,417 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 [2024-11-20 16:59:58,441 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 [2024-11-20 16:59:58,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:59:58,452 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:59:58,452 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:59:58,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [79847754] [2024-11-20 16:59:58,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [79847754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:59:58,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:59:58,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:59:58,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733389452] [2024-11-20 16:59:58,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:59:58,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 16:59:58,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:59:58,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 16:59:58,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:59:58,456 INFO L87 Difference]: Start difference. First operand 1455 states and 1725 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-20 17:00:00,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:00:00,566 INFO L93 Difference]: Finished difference Result 1454 states and 1723 transitions. [2024-11-20 17:00:00,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:00:00,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 60 [2024-11-20 17:00:00,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:00:00,572 INFO L225 Difference]: With dead ends: 1454 [2024-11-20 17:00:00,572 INFO L226 Difference]: Without dead ends: 1454 [2024-11-20 17:00:00,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:00:00,573 INFO L432 NwaCegarLoop]: 1192 mSDtfsCounter, 2 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-20 17:00:00,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2993 Invalid, 1783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-20 17:00:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2024-11-20 17:00:00,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1454. [2024-11-20 17:00:00,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 965 states have (on average 1.766839378238342) internal successors, (1705), 1443 states have internal predecessors, (1705), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 17:00:00,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1723 transitions. [2024-11-20 17:00:00,591 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1723 transitions. Word has length 60 [2024-11-20 17:00:00,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:00:00,591 INFO L471 AbstractCegarLoop]: Abstraction has 1454 states and 1723 transitions. [2024-11-20 17:00:00,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-20 17:00:00,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1723 transitions. [2024-11-20 17:00:00,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 17:00:00,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:00:00,594 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:00:00,602 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 (14)] Ended with exit code 0 [2024-11-20 17:00:00,795 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 [2024-11-20 17:00:00,795 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 17:00:00,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:00:00,796 INFO L85 PathProgramCache]: Analyzing trace with hash 299959546, now seen corresponding path program 1 times [2024-11-20 17:00:00,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:00:00,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1688908057] [2024-11-20 17:00:00,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:00:00,797 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 [2024-11-20 17:00:00,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:00:00,800 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) [2024-11-20 17:00:00,802 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 [2024-11-20 17:00:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:00:01,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 17:00:01,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:00:01,018 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-20 17:00:01,036 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 [2024-11-20 17:00:01,046 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 [2024-11-20 17:00:01,091 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 [2024-11-20 17:00:01,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:00:01,109 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:00:01,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:00:01,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1688908057] [2024-11-20 17:00:01,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1688908057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:00:01,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:00:01,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:00:01,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130146217] [2024-11-20 17:00:01,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:00:01,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:00:01,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:00:01,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:00:01,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:00:01,111 INFO L87 Difference]: Start difference. First operand 1454 states and 1723 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-20 17:00:03,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:00:03,894 INFO L93 Difference]: Finished difference Result 1453 states and 1721 transitions. [2024-11-20 17:00:03,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:00:03,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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 60 [2024-11-20 17:00:03,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:00:03,903 INFO L225 Difference]: With dead ends: 1453 [2024-11-20 17:00:03,903 INFO L226 Difference]: Without dead ends: 1453 [2024-11-20 17:00:03,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:00:03,904 INFO L432 NwaCegarLoop]: 1192 mSDtfsCounter, 1 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3024 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-20 17:00:03,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3024 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-20 17:00:03,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2024-11-20 17:00:03,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1453. [2024-11-20 17:00:03,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 963 states have (on average 1.7684319833852544) internal successors, (1703), 1442 states have internal predecessors, (1703), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 17:00:03,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 1721 transitions. [2024-11-20 17:00:03,923 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 1721 transitions. Word has length 60 [2024-11-20 17:00:03,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:00:03,923 INFO L471 AbstractCegarLoop]: Abstraction has 1453 states and 1721 transitions. [2024-11-20 17:00:03,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 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) [2024-11-20 17:00:03,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 1721 transitions. [2024-11-20 17:00:03,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-20 17:00:03,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:00:03,924 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] [2024-11-20 17:00:03,933 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 (15)] Forceful destruction successful, exit code 0 [2024-11-20 17:00:04,125 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 [2024-11-20 17:00:04,125 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 17:00:04,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:00:04,125 INFO L85 PathProgramCache]: Analyzing trace with hash 217393312, now seen corresponding path program 1 times [2024-11-20 17:00:04,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:00:04,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1370425649] [2024-11-20 17:00:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:00:04,126 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 [2024-11-20 17:00:04,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:00:04,127 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) [2024-11-20 17:00:04,128 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 [2024-11-20 17:00:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:00:04,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 17:00:04,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:00:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:00:04,381 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 17:00:04,382 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:00:04,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1370425649] [2024-11-20 17:00:04,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1370425649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:00:04,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:00:04,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:00:04,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745264320] [2024-11-20 17:00:04,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:00:04,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:00:04,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:00:04,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:00:04,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:00:04,384 INFO L87 Difference]: Start difference. First operand 1453 states and 1721 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-11-20 17:00:04,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:00:04,427 INFO L93 Difference]: Finished difference Result 1456 states and 1727 transitions. [2024-11-20 17:00:04,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:00:04,428 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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 68 [2024-11-20 17:00:04,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:00:04,434 INFO L225 Difference]: With dead ends: 1456 [2024-11-20 17:00:04,434 INFO L226 Difference]: Without dead ends: 1456 [2024-11-20 17:00:04,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:00:04,435 INFO L432 NwaCegarLoop]: 1191 mSDtfsCounter, 0 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 17:00:04,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3565 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 17:00:04,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2024-11-20 17:00:04,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1456. [2024-11-20 17:00:04,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 965 states have (on average 1.767875647668394) internal successors, (1706), 1445 states have internal predecessors, (1706), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 17:00:04,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1727 transitions. [2024-11-20 17:00:04,463 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1727 transitions. Word has length 68 [2024-11-20 17:00:04,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:00:04,463 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 1727 transitions. [2024-11-20 17:00:04,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 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) [2024-11-20 17:00:04,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1727 transitions. [2024-11-20 17:00:04,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 17:00:04,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:00:04,464 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] [2024-11-20 17:00:04,471 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 [2024-11-20 17:00:04,665 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 [2024-11-20 17:00:04,665 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 17:00:04,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:00:04,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1249531690, now seen corresponding path program 1 times [2024-11-20 17:00:04,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:00:04,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549169357] [2024-11-20 17:00:04,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:00:04,666 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 [2024-11-20 17:00:04,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:00:04,667 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) [2024-11-20 17:00:04,668 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 [2024-11-20 17:00:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:00:04,900 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 17:00:04,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:00:04,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:00:04,927 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:00:05,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:00:05,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:00:05,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549169357] [2024-11-20 17:00:05,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549169357] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:00:05,005 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 17:00:05,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-20 17:00:05,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279063283] [2024-11-20 17:00:05,010 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 17:00:05,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 17:00:05,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:00:05,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 17:00:05,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 17:00:05,011 INFO L87 Difference]: Start difference. First operand 1456 states and 1727 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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) [2024-11-20 17:00:05,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:00:05,199 INFO L93 Difference]: Finished difference Result 1468 states and 1746 transitions. [2024-11-20 17:00:05,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 17:00:05,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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 69 [2024-11-20 17:00:05,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:00:05,209 INFO L225 Difference]: With dead ends: 1468 [2024-11-20 17:00:05,209 INFO L226 Difference]: Without dead ends: 1468 [2024-11-20 17:00:05,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-20 17:00:05,210 INFO L432 NwaCegarLoop]: 1190 mSDtfsCounter, 7 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4749 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 17:00:05,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4749 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 17:00:05,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-11-20 17:00:05,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1466. [2024-11-20 17:00:05,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 974 states have (on average 1.76694045174538) internal successors, (1721), 1454 states have internal predecessors, (1721), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 17:00:05,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1742 transitions. [2024-11-20 17:00:05,244 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1742 transitions. Word has length 69 [2024-11-20 17:00:05,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:00:05,244 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 1742 transitions. [2024-11-20 17:00:05,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 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) [2024-11-20 17:00:05,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1742 transitions. [2024-11-20 17:00:05,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-20 17:00:05,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:00:05,245 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] [2024-11-20 17:00:05,255 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 [2024-11-20 17:00:05,446 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 [2024-11-20 17:00:05,451 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 17:00:05,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:00:05,451 INFO L85 PathProgramCache]: Analyzing trace with hash -315718112, now seen corresponding path program 2 times [2024-11-20 17:00:05,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:00:05,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [688888058] [2024-11-20 17:00:05,452 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 17:00:05,452 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 [2024-11-20 17:00:05,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:00:05,453 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) [2024-11-20 17:00:05,455 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 [2024-11-20 17:00:05,821 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 17:00:05,821 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:00:05,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 17:00:05,833 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:00:05,895 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:00:05,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:00:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:00:06,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:00:06,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [688888058] [2024-11-20 17:00:06,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [688888058] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:00:06,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 17:00:06,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-20 17:00:06,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577966724] [2024-11-20 17:00:06,095 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 17:00:06,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 17:00:06,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:00:06,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 17:00:06,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-20 17:00:06,097 INFO L87 Difference]: Start difference. First operand 1466 states and 1742 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 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) [2024-11-20 17:00:06,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:00:06,545 INFO L93 Difference]: Finished difference Result 1481 states and 1763 transitions. [2024-11-20 17:00:06,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 17:00:06,546 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 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 72 [2024-11-20 17:00:06,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:00:06,552 INFO L225 Difference]: With dead ends: 1481 [2024-11-20 17:00:06,552 INFO L226 Difference]: Without dead ends: 1475 [2024-11-20 17:00:06,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-20 17:00:06,553 INFO L432 NwaCegarLoop]: 1191 mSDtfsCounter, 10 mSDsluCounter, 8293 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9484 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 17:00:06,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9484 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 17:00:06,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2024-11-20 17:00:06,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1475. [2024-11-20 17:00:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 983 states have (on average 1.7619532044760935) internal successors, (1732), 1463 states have internal predecessors, (1732), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 17:00:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1753 transitions. [2024-11-20 17:00:06,579 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1753 transitions. Word has length 72 [2024-11-20 17:00:06,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:00:06,580 INFO L471 AbstractCegarLoop]: Abstraction has 1475 states and 1753 transitions. [2024-11-20 17:00:06,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 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) [2024-11-20 17:00:06,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1753 transitions. [2024-11-20 17:00:06,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 17:00:06,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:00:06,583 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] [2024-11-20 17:00:06,593 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 [2024-11-20 17:00:06,783 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 [2024-11-20 17:00:06,784 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 17:00:06,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:00:06,785 INFO L85 PathProgramCache]: Analyzing trace with hash -25531808, now seen corresponding path program 3 times [2024-11-20 17:00:06,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:00:06,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740117180] [2024-11-20 17:00:06,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 17:00:06,786 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 [2024-11-20 17:00:06,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:00:06,789 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) [2024-11-20 17:00:06,790 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 [2024-11-20 17:00:07,322 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-20 17:00:07,322 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:00:07,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 17:00:07,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:00:07,476 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:00:07,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:00:07,934 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:00:07,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:00:07,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740117180] [2024-11-20 17:00:07,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [740117180] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:00:07,934 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 17:00:07,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-20 17:00:07,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429158875] [2024-11-20 17:00:07,934 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 17:00:07,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-20 17:00:07,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:00:07,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-20 17:00:07,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-20 17:00:07,936 INFO L87 Difference]: Start difference. First operand 1475 states and 1753 transitions. Second operand has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 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) [2024-11-20 17:00:09,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:00:09,294 INFO L93 Difference]: Finished difference Result 1499 states and 1792 transitions. [2024-11-20 17:00:09,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-20 17:00:09,295 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 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 [2024-11-20 17:00:09,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:00:09,300 INFO L225 Difference]: With dead ends: 1499 [2024-11-20 17:00:09,300 INFO L226 Difference]: Without dead ends: 1493 [2024-11-20 17:00:09,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-20 17:00:09,301 INFO L432 NwaCegarLoop]: 1191 mSDtfsCounter, 26 mSDsluCounter, 16606 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 17797 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 17:00:09,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 17797 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 17:00:09,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2024-11-20 17:00:09,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1493. [2024-11-20 17:00:09,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1001 states have (on average 1.7532467532467533) internal successors, (1755), 1481 states have internal predecessors, (1755), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 17:00:09,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1776 transitions. [2024-11-20 17:00:09,333 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1776 transitions. Word has length 78 [2024-11-20 17:00:09,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:00:09,334 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 1776 transitions. [2024-11-20 17:00:09,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 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) [2024-11-20 17:00:09,334 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1776 transitions. [2024-11-20 17:00:09,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-20 17:00:09,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:00:09,335 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] [2024-11-20 17:00:09,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-20 17:00:09,535 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 [2024-11-20 17:00:09,536 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 17:00:09,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:00:09,537 INFO L85 PathProgramCache]: Analyzing trace with hash -1120820512, now seen corresponding path program 4 times [2024-11-20 17:00:09,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:00:09,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746096255] [2024-11-20 17:00:09,538 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 17:00:09,538 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 [2024-11-20 17:00:09,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:00:09,541 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) [2024-11-20 17:00:09,542 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 [2024-11-20 17:00:09,991 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 17:00:09,991 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:00:10,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-20 17:00:10,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:00:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:00:10,313 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:00:11,542 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:00:11,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:00:11,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746096255] [2024-11-20 17:00:11,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746096255] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:00:11,543 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 17:00:11,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-20 17:00:11,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282408466] [2024-11-20 17:00:11,543 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 17:00:11,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-20 17:00:11,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 17:00:11,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-20 17:00:11,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-20 17:00:11,546 INFO L87 Difference]: Start difference. First operand 1493 states and 1776 transitions. Second operand has 50 states, 50 states have (on average 2.26) internal successors, (113), 50 states have internal predecessors, (113), 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) [2024-11-20 17:00:15,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 17:00:15,912 INFO L93 Difference]: Finished difference Result 1533 states and 1850 transitions. [2024-11-20 17:00:15,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-20 17:00:15,913 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.26) internal successors, (113), 50 states have internal predecessors, (113), 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 90 [2024-11-20 17:00:15,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 17:00:15,916 INFO L225 Difference]: With dead ends: 1533 [2024-11-20 17:00:15,916 INFO L226 Difference]: Without dead ends: 1529 [2024-11-20 17:00:15,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-20 17:00:15,918 INFO L432 NwaCegarLoop]: 1190 mSDtfsCounter, 32 mSDsluCounter, 28464 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 29654 SdHoareTripleChecker+Invalid, 2065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-20 17:00:15,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 29654 Invalid, 2065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-20 17:00:15,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2024-11-20 17:00:15,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1527. [2024-11-20 17:00:15,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1035 states have (on average 1.740096618357488) internal successors, (1801), 1515 states have internal predecessors, (1801), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 17:00:15,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1822 transitions. [2024-11-20 17:00:15,938 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1822 transitions. Word has length 90 [2024-11-20 17:00:15,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 17:00:15,938 INFO L471 AbstractCegarLoop]: Abstraction has 1527 states and 1822 transitions. [2024-11-20 17:00:15,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.26) internal successors, (113), 50 states have internal predecessors, (113), 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) [2024-11-20 17:00:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1822 transitions. [2024-11-20 17:00:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 17:00:15,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 17:00:15,939 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] [2024-11-20 17:00:15,952 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 [2024-11-20 17:00:16,140 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 [2024-11-20 17:00:16,141 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 17:00:16,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:00:16,141 INFO L85 PathProgramCache]: Analyzing trace with hash -2015564512, now seen corresponding path program 5 times [2024-11-20 17:00:16,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 17:00:16,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962557245] [2024-11-20 17:00:16,142 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 17:00:16,142 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 [2024-11-20 17:00:16,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 17:00:16,145 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) [2024-11-20 17:00:16,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-20 17:00:17,287 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-20 17:00:17,287 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 17:00:17,308 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-20 17:00:17,315 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:00:17,333 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-20 17:00:17,333 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 22 [2024-11-20 17:00:17,672 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-11-20 17:00:17,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2024-11-20 17:00:17,730 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 [2024-11-20 17:00:17,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2024-11-20 17:00:20,082 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-20 17:00:20,082 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 59 [2024-11-20 17:00:20,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 27 [2024-11-20 17:00:20,187 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-20 17:00:20,188 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:00:20,499 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 17:00:20,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962557245] [2024-11-20 17:00:20,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962557245] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:00:20,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1996948107] [2024-11-20 17:00:20,499 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 17:00:20,500 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-20 17:00:20,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-20 17:00:20,501 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-20 17:00:20,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process