./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_FNV_nondet_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:05:13,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:05:13,775 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-10-11 19:05:13,790 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:05:13,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:05:13,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:05:13,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:05:13,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:05:13,811 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:05:13,812 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:05:13,812 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:05:13,812 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:05:13,812 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:05:13,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:05:13,814 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:05:13,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:05:13,814 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:05:13,815 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:05:13,815 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:05:13,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:05:13,815 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:05:13,818 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:05:13,818 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:05:13,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:05:13,819 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:05:13,819 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:05:13,819 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:05:13,819 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:05:13,819 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:05:13,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:05:13,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:05:13,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:05:13,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:05:13,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:05:13,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:05:13,820 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:05:13,820 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 19:05:13,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 19:05:13,820 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:05:13,820 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:05:13,821 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:05:13,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:05:13,822 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2024-10-11 19:05:14,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:05:14,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:05:14,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:05:14,028 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:05:14,029 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:05:14,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-2.i [2024-10-11 19:05:15,312 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:05:15,548 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:05:15,549 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-2.i [2024-10-11 19:05:15,566 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e12a0cf61/6076f7da4b3c4ca89fddba4f542f2e78/FLAGf0b2aaec7 [2024-10-11 19:05:15,860 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/e12a0cf61/6076f7da4b3c4ca89fddba4f542f2e78 [2024-10-11 19:05:15,862 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:05:15,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:05:15,865 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:05:15,865 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:05:15,869 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:05:15,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:05:15" (1/1) ... [2024-10-11 19:05:15,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7177f438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:15, skipping insertion in model container [2024-10-11 19:05:15,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:05:15" (1/1) ... [2024-10-11 19:05:15,909 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:05:16,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:05:16,342 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-10-11 19:05:16,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@13406ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:16, skipping insertion in model container [2024-10-11 19:05:16,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:05:16,344 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-10-11 19:05:16,345 INFO L158 Benchmark]: Toolchain (without parser) took 482.15ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 83.0MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:05:16,346 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 19:05:16,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.32ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 83.4MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 19:05:16,348 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.32ms. Allocated memory is still 167.8MB. Free memory was 106.0MB in the beginning and 83.4MB in the end (delta: 22.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 740]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 19:05:17,964 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 19:05:18,020 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-10-11 19:05:18,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 19:05:18,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 19:05:18,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 19:05:18,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 19:05:18,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 19:05:18,049 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 19:05:18,049 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 19:05:18,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 19:05:18,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 19:05:18,050 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 19:05:18,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 19:05:18,051 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 19:05:18,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 19:05:18,052 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 19:05:18,052 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 19:05:18,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 19:05:18,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 19:05:18,055 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-10-11 19:05:18,055 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-10-11 19:05:18,055 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-10-11 19:05:18,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 19:05:18,056 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 19:05:18,056 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 19:05:18,056 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 19:05:18,056 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 19:05:18,056 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 19:05:18,056 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 19:05:18,057 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 19:05:18,057 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 19:05:18,057 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 19:05:18,057 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 19:05:18,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 19:05:18,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:05:18,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 19:05:18,058 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 19:05:18,058 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 19:05:18,058 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 19:05:18,058 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 19:05:18,060 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 19:05:18,060 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 19:05:18,060 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 19:05:18,060 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 19:05:18,060 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2024-10-11 19:05:18,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 19:05:18,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 19:05:18,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 19:05:18,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 19:05:18,325 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 19:05:18,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-2.i [2024-10-11 19:05:19,607 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 19:05:19,824 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 19:05:19,825 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_nondet_test4-2.i [2024-10-11 19:05:19,848 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/48e9f456d/959079280c7b428e8b344c3136bdd12c/FLAG297026c81 [2024-10-11 19:05:19,859 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/48e9f456d/959079280c7b428e8b344c3136bdd12c [2024-10-11 19:05:19,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 19:05:19,863 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 19:05:19,863 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 19:05:19,864 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 19:05:19,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 19:05:19,869 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:05:19" (1/1) ... [2024-10-11 19:05:19,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba5511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:19, skipping insertion in model container [2024-10-11 19:05:19,871 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:05:19" (1/1) ... [2024-10-11 19:05:19,923 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:05:20,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:05:20,375 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-10-11 19:05:20,383 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 19:05:20,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:05:20,471 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 19:05:20,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 19:05:20,575 INFO L204 MainTranslator]: Completed translation [2024-10-11 19:05:20,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20 WrapperNode [2024-10-11 19:05:20,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 19:05:20,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 19:05:20,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 19:05:20,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 19:05:20,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,687 INFO L138 Inliner]: procedures = 179, calls = 377, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1311 [2024-10-11 19:05:20,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 19:05:20,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 19:05:20,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 19:05:20,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 19:05:20,698 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,710 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,797 INFO L175 MemorySlicer]: Split 357 memory accesses to 2 slices as follows [2, 355]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 90 writes are split as follows [0, 90]. [2024-10-11 19:05:20,797 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,849 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,861 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 19:05:20,862 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 19:05:20,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 19:05:20,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 19:05:20,863 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (1/1) ... [2024-10-11 19:05:20,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 19:05:20,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 19:05:20,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 19:05:20,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 19:05:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-10-11 19:05:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-10-11 19:05:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 19:05:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 19:05:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-10-11 19:05:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-10-11 19:05:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-10-11 19:05:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-10-11 19:05:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 19:05:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 19:05:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 19:05:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 19:05:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 19:05:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 19:05:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 19:05:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 19:05:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 19:05:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 19:05:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 19:05:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 19:05:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 19:05:21,112 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 19:05:21,113 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 19:05:21,116 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:05:21,156 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-10-11 19:05:24,500 INFO L? ?]: Removed 1538 outVars from TransFormulas that were not future-live. [2024-10-11 19:05:24,500 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 19:05:24,644 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 19:05:24,644 INFO L314 CfgBuilder]: Removed 69 assume(true) statements. [2024-10-11 19:05:24,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:05:24 BoogieIcfgContainer [2024-10-11 19:05:24,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 19:05:24,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 19:05:24,646 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 19:05:24,652 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 19:05:24,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:05:19" (1/3) ... [2024-10-11 19:05:24,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6187515d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:05:24, skipping insertion in model container [2024-10-11 19:05:24,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:05:20" (2/3) ... [2024-10-11 19:05:24,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6187515d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:05:24, skipping insertion in model container [2024-10-11 19:05:24,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:05:24" (3/3) ... [2024-10-11 19:05:24,654 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_nondet_test4-2.i [2024-10-11 19:05:24,667 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 19:05:24,668 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 733 error locations. [2024-10-11 19:05:24,727 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 19:05:24,734 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;@223c19f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 19:05:24,734 INFO L334 AbstractCegarLoop]: Starting to check reachability of 733 error locations. [2024-10-11 19:05:24,740 INFO L276 IsEmpty]: Start isEmpty. Operand has 1292 states, 557 states have (on average 2.556552962298025) internal successors, (1424), 1284 states have internal predecessors, (1424), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:05:24,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-10-11 19:05:24,745 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:24,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-10-11 19:05:24,746 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr732ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:24,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:24,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2086279, now seen corresponding path program 1 times [2024-10-11 19:05:24,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:24,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377916063] [2024-10-11 19:05:24,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:24,763 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:24,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:24,766 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:24,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-11 19:05:24,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:24,904 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:05:24,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:24,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:24,937 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:24,937 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:24,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377916063] [2024-10-11 19:05:24,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377916063] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:24,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:24,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-11 19:05:24,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249707497] [2024-10-11 19:05:24,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:24,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:05:24,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:24,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:05:24,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:05:24,970 INFO L87 Difference]: Start difference. First operand has 1292 states, 557 states have (on average 2.556552962298025) internal successors, (1424), 1284 states have internal predecessors, (1424), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:26,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:26,534 INFO L93 Difference]: Finished difference Result 1463 states and 1542 transitions. [2024-10-11 19:05:26,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:05:26,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-10-11 19:05:26,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:26,550 INFO L225 Difference]: With dead ends: 1463 [2024-10-11 19:05:26,551 INFO L226 Difference]: Without dead ends: 1460 [2024-10-11 19:05:26,552 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:05:26,554 INFO L432 NwaCegarLoop]: 1124 mSDtfsCounter, 200 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1743 SdHoareTripleChecker+Invalid, 941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:26,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1743 Invalid, 941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 941 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-11 19:05:26,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2024-10-11 19:05:26,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1287. [2024-10-11 19:05:26,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 563 states have (on average 2.403197158081705) internal successors, (1353), 1279 states have internal predecessors, (1353), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:05:26,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1365 transitions. [2024-10-11 19:05:26,636 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1365 transitions. Word has length 3 [2024-10-11 19:05:26,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:26,636 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1365 transitions. [2024-10-11 19:05:26,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:26,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1365 transitions. [2024-10-11 19:05:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 19:05:26,637 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:26,637 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 19:05:26,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-11 19:05:26,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:26,838 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:26,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:26,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2002971235, now seen corresponding path program 1 times [2024-10-11 19:05:26,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:26,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729777663] [2024-10-11 19:05:26,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:26,839 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:26,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:26,843 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:26,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-11 19:05:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:26,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:05:26,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:26,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:05:26,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:26,984 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:26,984 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:26,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729777663] [2024-10-11 19:05:26,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729777663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:26,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:26,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:05:26,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230671148] [2024-10-11 19:05:26,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:26,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:05:26,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:26,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:05:26,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:05:26,986 INFO L87 Difference]: Start difference. First operand 1287 states and 1365 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:28,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:28,402 INFO L93 Difference]: Finished difference Result 1193 states and 1269 transitions. [2024-10-11 19:05:28,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:05:28,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 19:05:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:28,405 INFO L225 Difference]: With dead ends: 1193 [2024-10-11 19:05:28,405 INFO L226 Difference]: Without dead ends: 1193 [2024-10-11 19:05:28,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:05:28,406 INFO L432 NwaCegarLoop]: 614 mSDtfsCounter, 913 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:28,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 704 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 19:05:28,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-10-11 19:05:28,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1193. [2024-10-11 19:05:28,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 563 states have (on average 2.2326820603907636) internal successors, (1257), 1185 states have internal predecessors, (1257), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:05:28,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1269 transitions. [2024-10-11 19:05:28,421 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1269 transitions. Word has length 5 [2024-10-11 19:05:28,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:28,421 INFO L471 AbstractCegarLoop]: Abstraction has 1193 states and 1269 transitions. [2024-10-11 19:05:28,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:28,422 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1269 transitions. [2024-10-11 19:05:28,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 19:05:28,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:28,422 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 19:05:28,425 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-11 19:05:28,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:28,624 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:28,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:28,625 INFO L85 PathProgramCache]: Analyzing trace with hash 2002971236, now seen corresponding path program 1 times [2024-10-11 19:05:28,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:28,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498699568] [2024-10-11 19:05:28,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:28,626 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:28,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:28,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:28,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-11 19:05:28,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:28,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:05:28,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:28,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:05:28,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:28,743 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:28,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:28,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498699568] [2024-10-11 19:05:28,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498699568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:28,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:28,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:05:28,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157004648] [2024-10-11 19:05:28,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:28,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:05:28,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:28,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:05:28,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:05:28,745 INFO L87 Difference]: Start difference. First operand 1193 states and 1269 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:30,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:30,754 INFO L93 Difference]: Finished difference Result 1473 states and 1569 transitions. [2024-10-11 19:05:30,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:05:30,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 19:05:30,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:30,758 INFO L225 Difference]: With dead ends: 1473 [2024-10-11 19:05:30,758 INFO L226 Difference]: Without dead ends: 1473 [2024-10-11 19:05:30,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:05:30,759 INFO L432 NwaCegarLoop]: 920 mSDtfsCounter, 464 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:30,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 1354 Invalid, 980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-11 19:05:30,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2024-10-11 19:05:30,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1322. [2024-10-11 19:05:30,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 702 states have (on average 2.1923076923076925) internal successors, (1539), 1314 states have internal predecessors, (1539), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-11 19:05:30,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1551 transitions. [2024-10-11 19:05:30,776 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1551 transitions. Word has length 5 [2024-10-11 19:05:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:30,776 INFO L471 AbstractCegarLoop]: Abstraction has 1322 states and 1551 transitions. [2024-10-11 19:05:30,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:30,776 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1551 transitions. [2024-10-11 19:05:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 19:05:30,777 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:30,777 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 19:05:30,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-11 19:05:30,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:30,978 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:30,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:30,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1964225645, now seen corresponding path program 1 times [2024-10-11 19:05:30,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:30,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1675942248] [2024-10-11 19:05:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:30,982 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:30,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:30,984 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:30,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-11 19:05:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:31,085 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:05:31,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:31,123 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:31,123 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:31,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1675942248] [2024-10-11 19:05:31,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1675942248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:31,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:31,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:05:31,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461767721] [2024-10-11 19:05:31,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:31,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:05:31,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:31,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:05:31,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:05:31,124 INFO L87 Difference]: Start difference. First operand 1322 states and 1551 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:32,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:32,330 INFO L93 Difference]: Finished difference Result 1999 states and 2354 transitions. [2024-10-11 19:05:32,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:05:32,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-11 19:05:32,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:32,335 INFO L225 Difference]: With dead ends: 1999 [2024-10-11 19:05:32,335 INFO L226 Difference]: Without dead ends: 1999 [2024-10-11 19:05:32,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:05:32,336 INFO L432 NwaCegarLoop]: 1092 mSDtfsCounter, 620 mSDsluCounter, 1965 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:32,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 3057 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 19:05:32,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2024-10-11 19:05:32,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1700. [2024-10-11 19:05:32,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1700 states, 1080 states have (on average 2.162962962962963) internal successors, (2336), 1689 states have internal predecessors, (2336), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:05:32,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1700 states to 1700 states and 2354 transitions. [2024-10-11 19:05:32,362 INFO L78 Accepts]: Start accepts. Automaton has 1700 states and 2354 transitions. Word has length 6 [2024-10-11 19:05:32,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:32,362 INFO L471 AbstractCegarLoop]: Abstraction has 1700 states and 2354 transitions. [2024-10-11 19:05:32,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:32,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1700 states and 2354 transitions. [2024-10-11 19:05:32,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-11 19:05:32,363 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:32,363 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:32,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-11 19:05:32,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:32,563 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr627REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:32,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:32,564 INFO L85 PathProgramCache]: Analyzing trace with hash 2130237079, now seen corresponding path program 1 times [2024-10-11 19:05:32,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:32,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683489619] [2024-10-11 19:05:32,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:32,564 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:32,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:32,567 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:32,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-10-11 19:05:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:32,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:05:32,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:32,697 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:32,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:32,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683489619] [2024-10-11 19:05:32,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683489619] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:32,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:32,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 19:05:32,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032695265] [2024-10-11 19:05:32,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:32,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:05:32,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:32,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:05:32,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:05:32,701 INFO L87 Difference]: Start difference. First operand 1700 states and 2354 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:33,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:33,469 INFO L93 Difference]: Finished difference Result 1789 states and 2307 transitions. [2024-10-11 19:05:33,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:05:33,470 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-10-11 19:05:33,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:33,473 INFO L225 Difference]: With dead ends: 1789 [2024-10-11 19:05:33,474 INFO L226 Difference]: Without dead ends: 1789 [2024-10-11 19:05:33,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:05:33,474 INFO L432 NwaCegarLoop]: 1144 mSDtfsCounter, 285 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 2175 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:33,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 2175 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:05:33,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1789 states. [2024-10-11 19:05:33,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1789 to 1589. [2024-10-11 19:05:33,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 969 states have (on average 2.1733746130030958) internal successors, (2106), 1578 states have internal predecessors, (2106), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:05:33,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2124 transitions. [2024-10-11 19:05:33,495 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2124 transitions. Word has length 8 [2024-10-11 19:05:33,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:33,496 INFO L471 AbstractCegarLoop]: Abstraction has 1589 states and 2124 transitions. [2024-10-11 19:05:33,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:33,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2124 transitions. [2024-10-11 19:05:33,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 19:05:33,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:33,496 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:33,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-10-11 19:05:33,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:33,697 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:33,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:33,698 INFO L85 PathProgramCache]: Analyzing trace with hash -463868595, now seen corresponding path program 1 times [2024-10-11 19:05:33,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:33,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804460501] [2024-10-11 19:05:33,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:33,698 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:33,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:33,699 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:33,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-10-11 19:05:33,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:33,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 19:05:33,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:33,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:33,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:33,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:33,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804460501] [2024-10-11 19:05:33,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804460501] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:33,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:33,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:05:33,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043699444] [2024-10-11 19:05:33,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:33,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 19:05:33,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:33,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 19:05:33,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:05:33,821 INFO L87 Difference]: Start difference. First operand 1589 states and 2124 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:34,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:34,344 INFO L93 Difference]: Finished difference Result 1535 states and 2044 transitions. [2024-10-11 19:05:34,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 19:05:34,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-11 19:05:34,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:34,349 INFO L225 Difference]: With dead ends: 1535 [2024-10-11 19:05:34,349 INFO L226 Difference]: Without dead ends: 1535 [2024-10-11 19:05:34,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 19:05:34,351 INFO L432 NwaCegarLoop]: 1046 mSDtfsCounter, 61 mSDsluCounter, 1004 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:34,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2050 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-11 19:05:34,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1535 states. [2024-10-11 19:05:34,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1535 to 1535. [2024-10-11 19:05:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1535 states, 939 states have (on average 2.1576144834930777) internal successors, (2026), 1524 states have internal predecessors, (2026), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:05:34,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1535 states to 1535 states and 2044 transitions. [2024-10-11 19:05:34,369 INFO L78 Accepts]: Start accepts. Automaton has 1535 states and 2044 transitions. Word has length 11 [2024-10-11 19:05:34,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:34,370 INFO L471 AbstractCegarLoop]: Abstraction has 1535 states and 2044 transitions. [2024-10-11 19:05:34,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:34,370 INFO L276 IsEmpty]: Start isEmpty. Operand 1535 states and 2044 transitions. [2024-10-11 19:05:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-11 19:05:34,370 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:34,370 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:34,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-10-11 19:05:34,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:34,571 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr629REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:34,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:34,572 INFO L85 PathProgramCache]: Analyzing trace with hash -536402057, now seen corresponding path program 1 times [2024-10-11 19:05:34,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:34,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1932495872] [2024-10-11 19:05:34,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:34,573 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:34,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:34,575 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:34,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-10-11 19:05:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:34,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 19:05:34,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:34,710 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:34,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:34,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1932495872] [2024-10-11 19:05:34,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1932495872] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:34,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:34,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:05:34,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97659266] [2024-10-11 19:05:34,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:34,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:05:34,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:34,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:05:34,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:05:34,712 INFO L87 Difference]: Start difference. First operand 1535 states and 2044 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:36,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:36,003 INFO L93 Difference]: Finished difference Result 1711 states and 2226 transitions. [2024-10-11 19:05:36,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:05:36,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-10-11 19:05:36,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:36,007 INFO L225 Difference]: With dead ends: 1711 [2024-10-11 19:05:36,007 INFO L226 Difference]: Without dead ends: 1705 [2024-10-11 19:05:36,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:05:36,008 INFO L432 NwaCegarLoop]: 1107 mSDtfsCounter, 247 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 3016 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:36,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 3016 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-11 19:05:36,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-10-11 19:05:36,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1529. [2024-10-11 19:05:36,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1529 states, 933 states have (on average 2.1639871382636655) internal successors, (2019), 1518 states have internal predecessors, (2019), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:05:36,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 2037 transitions. [2024-10-11 19:05:36,025 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 2037 transitions. Word has length 11 [2024-10-11 19:05:36,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:36,025 INFO L471 AbstractCegarLoop]: Abstraction has 1529 states and 2037 transitions. [2024-10-11 19:05:36,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:36,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 2037 transitions. [2024-10-11 19:05:36,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 19:05:36,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:36,026 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:36,028 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-10-11 19:05:36,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:36,226 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:36,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:36,227 INFO L85 PathProgramCache]: Analyzing trace with hash 898875271, now seen corresponding path program 1 times [2024-10-11 19:05:36,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:36,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [191915076] [2024-10-11 19:05:36,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:36,227 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:36,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:36,228 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:36,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-10-11 19:05:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:36,330 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:05:36,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:36,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:36,342 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:36,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:36,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [191915076] [2024-10-11 19:05:36,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [191915076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:36,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:36,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:05:36,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959243068] [2024-10-11 19:05:36,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:36,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:05:36,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:36,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:05:36,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:05:36,343 INFO L87 Difference]: Start difference. First operand 1529 states and 2037 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:37,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:37,039 INFO L93 Difference]: Finished difference Result 1513 states and 1993 transitions. [2024-10-11 19:05:37,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:05:37,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-11 19:05:37,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:37,043 INFO L225 Difference]: With dead ends: 1513 [2024-10-11 19:05:37,044 INFO L226 Difference]: Without dead ends: 1513 [2024-10-11 19:05:37,044 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:05:37,044 INFO L432 NwaCegarLoop]: 1015 mSDtfsCounter, 45 mSDsluCounter, 2012 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3027 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:37,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3027 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:05:37,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2024-10-11 19:05:37,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1513. [2024-10-11 19:05:37,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1513 states, 931 states have (on average 2.121374865735768) internal successors, (1975), 1502 states have internal predecessors, (1975), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:05:37,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 1993 transitions. [2024-10-11 19:05:37,061 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 1993 transitions. Word has length 13 [2024-10-11 19:05:37,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:37,061 INFO L471 AbstractCegarLoop]: Abstraction has 1513 states and 1993 transitions. [2024-10-11 19:05:37,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:37,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 1993 transitions. [2024-10-11 19:05:37,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-11 19:05:37,062 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:37,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:37,067 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-10-11 19:05:37,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:37,263 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:37,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:37,264 INFO L85 PathProgramCache]: Analyzing trace with hash 332414229, now seen corresponding path program 1 times [2024-10-11 19:05:37,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:37,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122255364] [2024-10-11 19:05:37,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:37,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:37,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:37,266 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:37,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-10-11 19:05:37,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:37,369 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:05:37,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:37,375 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:05:37,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:37,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:37,410 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:37,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122255364] [2024-10-11 19:05:37,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122255364] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:37,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:37,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:05:37,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048715435] [2024-10-11 19:05:37,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:37,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:05:37,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:37,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:05:37,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:05:37,411 INFO L87 Difference]: Start difference. First operand 1513 states and 1993 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:39,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:39,212 INFO L93 Difference]: Finished difference Result 1517 states and 1993 transitions. [2024-10-11 19:05:39,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:05:39,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-10-11 19:05:39,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:39,216 INFO L225 Difference]: With dead ends: 1517 [2024-10-11 19:05:39,216 INFO L226 Difference]: Without dead ends: 1517 [2024-10-11 19:05:39,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:05:39,217 INFO L432 NwaCegarLoop]: 578 mSDtfsCounter, 857 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 1482 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 1494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:39,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 1114 Invalid, 1494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1482 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-11 19:05:39,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2024-10-11 19:05:39,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1509. [2024-10-11 19:05:39,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 931 states have (on average 2.112781954887218) internal successors, (1967), 1498 states have internal predecessors, (1967), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:05:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1985 transitions. [2024-10-11 19:05:39,232 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1985 transitions. Word has length 27 [2024-10-11 19:05:39,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:39,232 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 1985 transitions. [2024-10-11 19:05:39,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:39,232 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1985 transitions. [2024-10-11 19:05:39,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-11 19:05:39,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:39,233 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:39,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-10-11 19:05:39,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:39,433 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:39,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:39,434 INFO L85 PathProgramCache]: Analyzing trace with hash 332414230, now seen corresponding path program 1 times [2024-10-11 19:05:39,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:39,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004397568] [2024-10-11 19:05:39,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:39,434 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:39,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:39,436 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:39,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-10-11 19:05:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:39,541 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:05:39,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:39,548 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:05:39,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:39,682 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:39,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:39,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004397568] [2024-10-11 19:05:39,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004397568] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:39,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:39,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:05:39,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928371845] [2024-10-11 19:05:39,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:39,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:05:39,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:39,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:05:39,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:05:39,683 INFO L87 Difference]: Start difference. First operand 1509 states and 1985 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:42,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:42,045 INFO L93 Difference]: Finished difference Result 1664 states and 2003 transitions. [2024-10-11 19:05:42,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:05:42,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-10-11 19:05:42,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:42,049 INFO L225 Difference]: With dead ends: 1664 [2024-10-11 19:05:42,049 INFO L226 Difference]: Without dead ends: 1664 [2024-10-11 19:05:42,049 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:05:42,050 INFO L432 NwaCegarLoop]: 1122 mSDtfsCounter, 404 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:42,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 2169 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-11 19:05:42,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2024-10-11 19:05:42,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1505. [2024-10-11 19:05:42,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 931 states have (on average 2.104189044038668) internal successors, (1959), 1494 states have internal predecessors, (1959), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:05:42,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1977 transitions. [2024-10-11 19:05:42,080 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1977 transitions. Word has length 27 [2024-10-11 19:05:42,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:42,081 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 1977 transitions. [2024-10-11 19:05:42,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:42,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1977 transitions. [2024-10-11 19:05:42,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-11 19:05:42,084 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:42,084 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:42,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-10-11 19:05:42,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:42,284 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:42,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:42,285 INFO L85 PathProgramCache]: Analyzing trace with hash -24905803, now seen corresponding path program 1 times [2024-10-11 19:05:42,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:42,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1040273711] [2024-10-11 19:05:42,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:42,286 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:42,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:42,287 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:42,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-10-11 19:05:42,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:42,442 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:05:42,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:42,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:42,476 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:42,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:42,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1040273711] [2024-10-11 19:05:42,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1040273711] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:42,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:42,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:05:42,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141666732] [2024-10-11 19:05:42,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:42,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:05:42,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:42,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:05:42,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:05:42,478 INFO L87 Difference]: Start difference. First operand 1505 states and 1977 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:43,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:43,141 INFO L93 Difference]: Finished difference Result 1493 states and 1957 transitions. [2024-10-11 19:05:43,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 19:05:43,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2024-10-11 19:05:43,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:43,145 INFO L225 Difference]: With dead ends: 1493 [2024-10-11 19:05:43,146 INFO L226 Difference]: Without dead ends: 1493 [2024-10-11 19:05:43,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:05:43,146 INFO L432 NwaCegarLoop]: 1009 mSDtfsCounter, 15 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3010 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:43,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3010 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 19:05:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2024-10-11 19:05:43,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1493. [2024-10-11 19:05:43,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 919 states have (on average 2.1099020674646356) internal successors, (1939), 1482 states have internal predecessors, (1939), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:05:43,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1957 transitions. [2024-10-11 19:05:43,160 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1957 transitions. Word has length 46 [2024-10-11 19:05:43,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:43,161 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 1957 transitions. [2024-10-11 19:05:43,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:43,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1957 transitions. [2024-10-11 19:05:43,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-11 19:05:43,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:43,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:43,168 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-10-11 19:05:43,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:43,363 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:43,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:43,363 INFO L85 PathProgramCache]: Analyzing trace with hash 28068373, now seen corresponding path program 1 times [2024-10-11 19:05:43,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:43,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [837637043] [2024-10-11 19:05:43,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:43,364 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:43,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:43,366 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:43,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-10-11 19:05:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:43,597 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 19:05:43,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:43,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:05:43,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:05:43,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 19:05:43,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-10-11 19:05:43,938 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-10-11 19:05:43,938 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-10-11 19:05:43,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:43,952 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:43,952 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:43,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [837637043] [2024-10-11 19:05:43,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [837637043] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:43,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:43,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 19:05:43,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518240812] [2024-10-11 19:05:43,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:43,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:05:43,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:43,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:05:43,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:05:43,954 INFO L87 Difference]: Start difference. First operand 1493 states and 1957 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:45,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:45,375 INFO L93 Difference]: Finished difference Result 1409 states and 1832 transitions. [2024-10-11 19:05:45,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:05:45,375 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-10-11 19:05:45,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:45,380 INFO L225 Difference]: With dead ends: 1409 [2024-10-11 19:05:45,380 INFO L226 Difference]: Without dead ends: 1409 [2024-10-11 19:05:45,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:05:45,381 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 1564 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1570 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:45,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1570 Valid, 485 Invalid, 916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 19:05:45,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2024-10-11 19:05:45,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1270. [2024-10-11 19:05:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 780 states have (on average 1.9512820512820512) internal successors, (1522), 1259 states have internal predecessors, (1522), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:05:45,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1540 transitions. [2024-10-11 19:05:45,392 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1540 transitions. Word has length 50 [2024-10-11 19:05:45,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:45,392 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1540 transitions. [2024-10-11 19:05:45,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:45,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1540 transitions. [2024-10-11 19:05:45,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 19:05:45,394 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:45,394 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:45,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-10-11 19:05:45,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:45,595 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:45,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:45,595 INFO L85 PathProgramCache]: Analyzing trace with hash -957272213, now seen corresponding path program 1 times [2024-10-11 19:05:45,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:45,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762077285] [2024-10-11 19:05:45,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:45,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:45,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:45,599 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:45,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-10-11 19:05:45,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:45,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 19:05:45,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:45,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-10-11 19:05:45,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:05:45,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-10-11 19:05:45,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:45,815 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:45,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:45,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1762077285] [2024-10-11 19:05:45,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1762077285] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:45,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:45,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:05:45,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474921956] [2024-10-11 19:05:45,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:45,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:05:45,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:45,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:05:45,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:05:45,817 INFO L87 Difference]: Start difference. First operand 1270 states and 1540 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:47,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:47,764 INFO L93 Difference]: Finished difference Result 1269 states and 1538 transitions. [2024-10-11 19:05:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:05:47,765 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-11 19:05:47,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:47,770 INFO L225 Difference]: With dead ends: 1269 [2024-10-11 19:05:47,770 INFO L226 Difference]: Without dead ends: 1269 [2024-10-11 19:05:47,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:05:47,771 INFO L432 NwaCegarLoop]: 937 mSDtfsCounter, 2 mSDsluCounter, 1433 mSDsCounter, 0 mSdLazyCounter, 1894 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 1895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:47,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2370 Invalid, 1895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1894 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-11 19:05:47,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2024-10-11 19:05:47,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1269. [2024-10-11 19:05:47,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 780 states have (on average 1.9487179487179487) internal successors, (1520), 1258 states have internal predecessors, (1520), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:05:47,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1538 transitions. [2024-10-11 19:05:47,784 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1538 transitions. Word has length 54 [2024-10-11 19:05:47,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:47,785 INFO L471 AbstractCegarLoop]: Abstraction has 1269 states and 1538 transitions. [2024-10-11 19:05:47,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:47,785 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1538 transitions. [2024-10-11 19:05:47,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 19:05:47,787 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:47,787 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:47,793 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-10-11 19:05:47,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:47,987 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:47,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:47,988 INFO L85 PathProgramCache]: Analyzing trace with hash -957272212, now seen corresponding path program 1 times [2024-10-11 19:05:47,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:47,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [267375604] [2024-10-11 19:05:47,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:47,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:47,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:47,991 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:47,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-10-11 19:05:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:48,156 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 19:05:48,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:48,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 19:05:48,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 19:05:48,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:05:48,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-10-11 19:05:48,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:48,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:48,225 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:48,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [267375604] [2024-10-11 19:05:48,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [267375604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:48,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:48,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:05:48,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000044237] [2024-10-11 19:05:48,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:48,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 19:05:48,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:48,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 19:05:48,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 19:05:48,226 INFO L87 Difference]: Start difference. First operand 1269 states and 1538 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:50,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:50,617 INFO L93 Difference]: Finished difference Result 1268 states and 1536 transitions. [2024-10-11 19:05:50,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 19:05:50,617 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-10-11 19:05:50,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:50,620 INFO L225 Difference]: With dead ends: 1268 [2024-10-11 19:05:50,620 INFO L226 Difference]: Without dead ends: 1268 [2024-10-11 19:05:50,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-11 19:05:50,621 INFO L432 NwaCegarLoop]: 937 mSDtfsCounter, 1 mSDsluCounter, 1462 mSDsCounter, 0 mSdLazyCounter, 1862 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:50,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2399 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1862 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-11 19:05:50,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-10-11 19:05:50,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 1268. [2024-10-11 19:05:50,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1268 states, 778 states have (on average 1.9511568123393317) internal successors, (1518), 1257 states have internal predecessors, (1518), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-11 19:05:50,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1536 transitions. [2024-10-11 19:05:50,631 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1536 transitions. Word has length 54 [2024-10-11 19:05:50,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:50,631 INFO L471 AbstractCegarLoop]: Abstraction has 1268 states and 1536 transitions. [2024-10-11 19:05:50,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 19:05:50,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1536 transitions. [2024-10-11 19:05:50,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 19:05:50,632 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:50,632 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:50,640 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2024-10-11 19:05:50,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:50,832 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:50,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:50,833 INFO L85 PathProgramCache]: Analyzing trace with hash 634687919, now seen corresponding path program 1 times [2024-10-11 19:05:50,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:50,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398427144] [2024-10-11 19:05:50,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:50,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:50,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:50,834 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:50,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-10-11 19:05:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:51,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 19:05:51,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:51,033 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 19:05:51,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:51,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398427144] [2024-10-11 19:05:51,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398427144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 19:05:51,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 19:05:51,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 19:05:51,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215929467] [2024-10-11 19:05:51,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 19:05:51,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 19:05:51,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:51,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 19:05:51,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:05:51,035 INFO L87 Difference]: Start difference. First operand 1268 states and 1536 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 19:05:51,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:51,735 INFO L93 Difference]: Finished difference Result 1270 states and 1541 transitions. [2024-10-11 19:05:51,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 19:05:51,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 60 [2024-10-11 19:05:51,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:51,742 INFO L225 Difference]: With dead ends: 1270 [2024-10-11 19:05:51,742 INFO L226 Difference]: Without dead ends: 1270 [2024-10-11 19:05:51,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 19:05:51,742 INFO L432 NwaCegarLoop]: 936 mSDtfsCounter, 0 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:51,743 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2802 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-11 19:05:51,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1270 states. [2024-10-11 19:05:51,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1270 to 1270. [2024-10-11 19:05:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1270 states, 779 states have (on average 1.951219512195122) internal successors, (1520), 1259 states have internal predecessors, (1520), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:05:51,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1270 states to 1270 states and 1541 transitions. [2024-10-11 19:05:51,755 INFO L78 Accepts]: Start accepts. Automaton has 1270 states and 1541 transitions. Word has length 60 [2024-10-11 19:05:51,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:51,755 INFO L471 AbstractCegarLoop]: Abstraction has 1270 states and 1541 transitions. [2024-10-11 19:05:51,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 19:05:51,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1270 states and 1541 transitions. [2024-10-11 19:05:51,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-11 19:05:51,757 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:51,757 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:51,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-10-11 19:05:51,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:51,958 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:51,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:51,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1766215004, now seen corresponding path program 1 times [2024-10-11 19:05:51,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:51,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [372436322] [2024-10-11 19:05:51,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 19:05:51,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:51,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:51,960 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:51,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-10-11 19:05:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 19:05:52,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-11 19:05:52,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:52,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:52,181 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:05:52,222 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:52,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:52,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [372436322] [2024-10-11 19:05:52,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [372436322] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:05:52,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:05:52,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-10-11 19:05:52,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887862225] [2024-10-11 19:05:52,224 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:05:52,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 19:05:52,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:52,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 19:05:52,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-11 19:05:52,225 INFO L87 Difference]: Start difference. First operand 1270 states and 1541 transitions. Second operand has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:05:53,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:53,182 INFO L93 Difference]: Finished difference Result 1279 states and 1557 transitions. [2024-10-11 19:05:53,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 19:05:53,183 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 61 [2024-10-11 19:05:53,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:53,186 INFO L225 Difference]: With dead ends: 1279 [2024-10-11 19:05:53,186 INFO L226 Difference]: Without dead ends: 1279 [2024-10-11 19:05:53,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-10-11 19:05:53,187 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 5 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:53,187 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3726 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-11 19:05:53,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2024-10-11 19:05:53,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1278. [2024-10-11 19:05:53,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1278 states, 786 states have (on average 1.950381679389313) internal successors, (1533), 1266 states have internal predecessors, (1533), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:05:53,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1278 states to 1278 states and 1554 transitions. [2024-10-11 19:05:53,199 INFO L78 Accepts]: Start accepts. Automaton has 1278 states and 1554 transitions. Word has length 61 [2024-10-11 19:05:53,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:53,199 INFO L471 AbstractCegarLoop]: Abstraction has 1278 states and 1554 transitions. [2024-10-11 19:05:53,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.333333333333334) internal successors, (62), 8 states have internal predecessors, (62), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:05:53,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1278 states and 1554 transitions. [2024-10-11 19:05:53,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 19:05:53,200 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:53,200 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:53,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-10-11 19:05:53,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:53,400 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:53,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:53,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1379701999, now seen corresponding path program 2 times [2024-10-11 19:05:53,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:53,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464066881] [2024-10-11 19:05:53,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 19:05:53,401 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:53,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:53,402 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:53,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-10-11 19:05:53,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 19:05:53,705 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:05:53,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 19:05:53,714 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:53,753 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:53,753 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:05:53,859 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:53,860 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:53,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464066881] [2024-10-11 19:05:53,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464066881] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:05:53,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:05:53,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-10-11 19:05:53,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469234014] [2024-10-11 19:05:53,860 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:05:53,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 19:05:53,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:53,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 19:05:53,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-10-11 19:05:53,861 INFO L87 Difference]: Start difference. First operand 1278 states and 1554 transitions. Second operand has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:05:55,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:05:55,376 INFO L93 Difference]: Finished difference Result 1290 states and 1575 transitions. [2024-10-11 19:05:55,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 19:05:55,377 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2024-10-11 19:05:55,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:05:55,381 INFO L225 Difference]: With dead ends: 1290 [2024-10-11 19:05:55,381 INFO L226 Difference]: Without dead ends: 1288 [2024-10-11 19:05:55,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-10-11 19:05:55,382 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 7 mSDsluCounter, 4660 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5594 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-11 19:05:55,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5594 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-11 19:05:55,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1288 states. [2024-10-11 19:05:55,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1288 to 1287. [2024-10-11 19:05:55,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 795 states have (on average 1.9433962264150944) internal successors, (1545), 1275 states have internal predecessors, (1545), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:05:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1566 transitions. [2024-10-11 19:05:55,398 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1566 transitions. Word has length 64 [2024-10-11 19:05:55,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:05:55,398 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1566 transitions. [2024-10-11 19:05:55,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.666666666666667) internal successors, (68), 14 states have internal predecessors, (68), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:05:55,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1566 transitions. [2024-10-11 19:05:55,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 19:05:55,399 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:05:55,399 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:05:55,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-10-11 19:05:55,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:55,599 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:05:55,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:05:55,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1898499535, now seen corresponding path program 3 times [2024-10-11 19:05:55,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:05:55,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [647480009] [2024-10-11 19:05:55,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 19:05:55,600 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:05:55,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:05:55,601 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:05:55,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-10-11 19:05:56,097 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-11 19:05:56,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:05:56,109 INFO L255 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 19:05:56,111 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:05:56,210 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:56,211 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:05:56,594 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:05:56,594 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:05:56,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [647480009] [2024-10-11 19:05:56,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [647480009] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:05:56,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:05:56,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-10-11 19:05:56,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048901195] [2024-10-11 19:05:56,595 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:05:56,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 19:05:56,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:05:56,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 19:05:56,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-10-11 19:05:56,596 INFO L87 Difference]: Start difference. First operand 1287 states and 1566 transitions. Second operand has 26 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 26 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:06:00,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:06:00,220 INFO L93 Difference]: Finished difference Result 1308 states and 1602 transitions. [2024-10-11 19:06:00,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-10-11 19:06:00,220 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 26 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 70 [2024-10-11 19:06:00,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:06:00,223 INFO L225 Difference]: With dead ends: 1308 [2024-10-11 19:06:00,223 INFO L226 Difference]: Without dead ends: 1305 [2024-10-11 19:06:00,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-10-11 19:06:00,224 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 13 mSDsluCounter, 10248 mSDsCounter, 0 mSdLazyCounter, 2108 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 11182 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-11 19:06:00,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 11182 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2108 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-11 19:06:00,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2024-10-11 19:06:00,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2024-10-11 19:06:00,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 813 states have (on average 1.928659286592866) internal successors, (1568), 1293 states have internal predecessors, (1568), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:06:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1589 transitions. [2024-10-11 19:06:00,237 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1589 transitions. Word has length 70 [2024-10-11 19:06:00,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:06:00,237 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1589 transitions. [2024-10-11 19:06:00,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 26 states have internal predecessors, (80), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:06:00,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1589 transitions. [2024-10-11 19:06:00,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-10-11 19:06:00,238 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:06:00,238 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:06:00,251 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-10-11 19:06:00,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:06:00,439 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:06:00,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:06:00,439 INFO L85 PathProgramCache]: Analyzing trace with hash -830683249, now seen corresponding path program 4 times [2024-10-11 19:06:00,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:06:00,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44800570] [2024-10-11 19:06:00,440 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 19:06:00,440 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:06:00,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:06:00,441 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:06:00,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-10-11 19:06:00,781 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 19:06:00,782 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:06:00,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-10-11 19:06:00,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:06:01,037 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:06:01,037 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:06:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 19:06:02,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:06:02,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44800570] [2024-10-11 19:06:02,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44800570] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 19:06:02,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-11 19:06:02,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-10-11 19:06:02,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163569233] [2024-10-11 19:06:02,018 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-11 19:06:02,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-10-11 19:06:02,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 19:06:02,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-10-11 19:06:02,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-10-11 19:06:02,020 INFO L87 Difference]: Start difference. First operand 1305 states and 1589 transitions. Second operand has 50 states, 48 states have (on average 2.1666666666666665) internal successors, (104), 50 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:06:11,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 19:06:11,095 INFO L93 Difference]: Finished difference Result 1342 states and 1660 transitions. [2024-10-11 19:06:11,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-10-11 19:06:11,097 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.1666666666666665) internal successors, (104), 50 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 82 [2024-10-11 19:06:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 19:06:11,099 INFO L225 Difference]: With dead ends: 1342 [2024-10-11 19:06:11,099 INFO L226 Difference]: Without dead ends: 1340 [2024-10-11 19:06:11,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-10-11 19:06:11,101 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 25 mSDsluCounter, 26086 mSDsCounter, 0 mSdLazyCounter, 5646 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27020 SdHoareTripleChecker+Invalid, 5683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 5646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-10-11 19:06:11,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27020 Invalid, 5683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 5646 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-10-11 19:06:11,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-10-11 19:06:11,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1339. [2024-10-11 19:06:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 847 states have (on average 1.9055489964580874) internal successors, (1614), 1327 states have internal predecessors, (1614), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-11 19:06:11,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1635 transitions. [2024-10-11 19:06:11,116 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1635 transitions. Word has length 82 [2024-10-11 19:06:11,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 19:06:11,116 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 1635 transitions. [2024-10-11 19:06:11,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.1666666666666665) internal successors, (104), 50 states have internal predecessors, (104), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 19:06:11,117 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1635 transitions. [2024-10-11 19:06:11,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-10-11 19:06:11,117 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 19:06:11,117 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 19:06:11,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-10-11 19:06:11,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:06:11,318 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-10-11 19:06:11,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 19:06:11,319 INFO L85 PathProgramCache]: Analyzing trace with hash 960845167, now seen corresponding path program 5 times [2024-10-11 19:06:11,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 19:06:11,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233548422] [2024-10-11 19:06:11,319 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:06:11,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-11 19:06:11,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 19:06:11,320 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-11 19:06:11,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-10-11 19:06:12,297 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-10-11 19:06:12,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 19:06:12,317 INFO L255 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-10-11 19:06:12,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 19:06:12,350 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-10-11 19:06:12,350 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 22 [2024-10-11 19:06:12,602 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-10-11 19:06:12,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2024-10-11 19:06:12,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-11 19:06:12,766 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2024-10-11 19:06:14,445 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-10-11 19:06:14,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 59 [2024-10-11 19:06:14,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 27 [2024-10-11 19:06:14,545 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-10-11 19:06:14,545 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 19:06:14,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 19:06:14,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233548422] [2024-10-11 19:06:14,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233548422] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 19:06:14,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2126299380] [2024-10-11 19:06:14,797 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 19:06:14,797 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-11 19:06:14,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-11 19:06:14,799 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-10-11 19:06:14,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process