./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_BER_nondet_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 16:52:26,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 16:52:26,783 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 16:52:26,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 16:52:26,790 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 16:52:26,808 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 16:52:26,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 16:52:26,809 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 16:52:26,809 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 16:52:26,809 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 16:52:26,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 16:52:26,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 16:52:26,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 16:52:26,811 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 16:52:26,812 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 16:52:26,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 16:52:26,812 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 16:52:26,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 16:52:26,813 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 16:52:26,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 16:52:26,813 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 16:52:26,817 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 16:52:26,817 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 16:52:26,817 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 16:52:26,818 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 16:52:26,818 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 16:52:26,818 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 16:52:26,818 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 16:52:26,819 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 16:52:26,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 16:52:26,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 16:52:26,819 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 16:52:26,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 16:52:26,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 16:52:26,821 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 16:52:26,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 16:52:26,821 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 16:52:26,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 16:52:26,822 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 16:52:26,823 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 16:52:26,823 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 16:52:26,824 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 16:52:26,824 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2024-11-20 16:52:27,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 16:52:27,120 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 16:52:27,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 16:52:27,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 16:52:27,126 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 16:52:27,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-2.i [2024-11-20 16:52:28,532 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 16:52:28,845 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 16:52:28,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-2.i [2024-11-20 16:52:28,876 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240ea2d1e/09e214e02868409f9b80b173ce209ed6/FLAG470150ea1 [2024-11-20 16:52:29,117 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/240ea2d1e/09e214e02868409f9b80b173ce209ed6 [2024-11-20 16:52:29,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 16:52:29,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 16:52:29,122 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 16:52:29,122 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 16:52:29,127 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 16:52:29,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:52:29" (1/1) ... [2024-11-20 16:52:29,129 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14e83565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:29, skipping insertion in model container [2024-11-20 16:52:29,129 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:52:29" (1/1) ... [2024-11-20 16:52:29,178 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 16:52:29,564 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,609 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,618 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,623 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,634 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,682 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,684 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,687 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,697 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,712 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,717 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,719 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,720 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,725 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,726 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,728 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:29,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:52:29,752 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2024-11-20 16:52:29,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@60427f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:29, skipping insertion in model container [2024-11-20 16:52:29,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 16:52:29,754 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-20 16:52:29,757 INFO L158 Benchmark]: Toolchain (without parser) took 634.56ms. Allocated memory is still 161.5MB. Free memory was 121.0MB in the beginning and 96.4MB in the end (delta: 24.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-20 16:52:29,757 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-20 16:52:29,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 632.26ms. Allocated memory is still 161.5MB. Free memory was 120.5MB in the beginning and 96.4MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-20 16:52:29,760 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 85.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 632.26ms. Allocated memory is still 161.5MB. Free memory was 120.5MB in the beginning and 96.4MB in the end (delta: 24.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 754]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 16:52:31,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 16:52:31,903 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-20 16:52:31,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 16:52:31,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 16:52:31,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 16:52:31,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 16:52:31,953 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 16:52:31,953 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 16:52:31,953 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 16:52:31,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 16:52:31,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 16:52:31,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 16:52:31,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 16:52:31,958 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 16:52:31,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 16:52:31,958 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 16:52:31,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 16:52:31,959 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 16:52:31,959 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 16:52:31,959 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 16:52:31,962 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 16:52:31,963 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 16:52:31,963 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 16:52:31,963 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 16:52:31,964 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-20 16:52:31,964 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 16:52:31,964 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-20 16:52:31,964 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 16:52:31,965 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 16:52:31,965 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 16:52:31,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 16:52:31,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 16:52:31,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 16:52:31,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 16:52:31,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 16:52:31,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 16:52:31,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 16:52:31,968 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-20 16:52:31,968 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-20 16:52:31,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 16:52:31,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 16:52:31,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 16:52:31,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 16:52:31,970 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2024-11-20 16:52:32,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 16:52:32,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 16:52:32,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 16:52:32,315 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 16:52:32,316 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 16:52:32,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-2.i [2024-11-20 16:52:33,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 16:52:34,206 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 16:52:34,211 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_BER_nondet_test4-2.i [2024-11-20 16:52:34,234 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f90c02b/3667730102a94894b5b12f433960b42b/FLAG77ac3534e [2024-11-20 16:52:34,252 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15f90c02b/3667730102a94894b5b12f433960b42b [2024-11-20 16:52:34,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 16:52:34,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 16:52:34,259 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 16:52:34,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 16:52:34,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 16:52:34,266 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:52:34" (1/1) ... [2024-11-20 16:52:34,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130244cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:34, skipping insertion in model container [2024-11-20 16:52:34,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 04:52:34" (1/1) ... [2024-11-20 16:52:34,336 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 16:52:34,747 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,785 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,798 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,802 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,812 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,852 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,857 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,860 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,868 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,885 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,886 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,888 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,889 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,890 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,891 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,898 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:34,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:52:34,927 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-20 16:52:34,944 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 16:52:34,975 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,000 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,004 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,007 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,015 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,037 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,038 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,042 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,049 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,059 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,059 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,061 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,061 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,062 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,062 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,065 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 16:52:35,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:52:35,082 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 16:52:35,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 16:52:35,230 INFO L204 MainTranslator]: Completed translation [2024-11-20 16:52:35,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35 WrapperNode [2024-11-20 16:52:35,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 16:52:35,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 16:52:35,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 16:52:35,233 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 16:52:35,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,283 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,339 INFO L138 Inliner]: procedures = 179, calls = 377, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1311 [2024-11-20 16:52:35,339 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 16:52:35,340 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 16:52:35,340 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 16:52:35,341 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 16:52:35,355 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,378 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,502 INFO L175 MemorySlicer]: Split 357 memory accesses to 2 slices as follows [355, 2]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [0, 2]. The 90 writes are split as follows [90, 0]. [2024-11-20 16:52:35,509 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,510 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,563 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,580 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 16:52:35,618 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 16:52:35,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 16:52:35,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 16:52:35,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (1/1) ... [2024-11-20 16:52:35,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 16:52:35,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 16:52:35,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 16:52:35,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 16:52:35,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-20 16:52:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-20 16:52:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-20 16:52:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-20 16:52:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-20 16:52:35,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-20 16:52:35,710 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-20 16:52:35,710 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-20 16:52:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 16:52:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 16:52:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 16:52:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 16:52:35,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 16:52:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 16:52:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 16:52:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-20 16:52:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-20 16:52:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-20 16:52:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-20 16:52:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 16:52:35,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 16:52:35,988 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 16:52:35,990 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 16:52:35,994 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-20 16:52:36,046 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-20 16:52:40,497 INFO L? ?]: Removed 1538 outVars from TransFormulas that were not future-live. [2024-11-20 16:52:40,497 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 16:52:40,545 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 16:52:40,546 INFO L316 CfgBuilder]: Removed 69 assume(true) statements. [2024-11-20 16:52:40,546 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:52:40 BoogieIcfgContainer [2024-11-20 16:52:40,546 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 16:52:40,548 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 16:52:40,548 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 16:52:40,551 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 16:52:40,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 04:52:34" (1/3) ... [2024-11-20 16:52:40,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b6e073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:52:40, skipping insertion in model container [2024-11-20 16:52:40,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 04:52:35" (2/3) ... [2024-11-20 16:52:40,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24b6e073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 04:52:40, skipping insertion in model container [2024-11-20 16:52:40,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 04:52:40" (3/3) ... [2024-11-20 16:52:40,556 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_nondet_test4-2.i [2024-11-20 16:52:40,572 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 16:52:40,573 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 733 error locations. [2024-11-20 16:52:40,646 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 16:52:40,654 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;@1b723362, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 16:52:40,654 INFO L334 AbstractCegarLoop]: Starting to check reachability of 733 error locations. [2024-11-20 16:52:40,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 1431 states, 696 states have (on average 2.2456896551724137) internal successors, (1563), 1423 states have internal predecessors, (1563), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 16:52:40,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-20 16:52:40,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:40,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-20 16:52:40,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr732ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:40,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:40,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1481810, now seen corresponding path program 1 times [2024-11-20 16:52:40,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:40,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818549095] [2024-11-20 16:52:40,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:40,684 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:40,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:40,685 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:40,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-20 16:52:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:40,871 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 16:52:40,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:40,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:52:40,912 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:52:40,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:52:40,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818549095] [2024-11-20 16:52:40,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818549095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:52:40,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:52:40,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 16:52:40,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016591283] [2024-11-20 16:52:40,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:52:40,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:52:40,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:52:40,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:52:40,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:52:40,959 INFO L87 Difference]: Start difference. First operand has 1431 states, 696 states have (on average 2.2456896551724137) internal successors, (1563), 1423 states have internal predecessors, (1563), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:42,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:52:42,960 INFO L93 Difference]: Finished difference Result 1621 states and 1700 transitions. [2024-11-20 16:52:42,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:52:42,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-20 16:52:42,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:52:42,981 INFO L225 Difference]: With dead ends: 1621 [2024-11-20 16:52:42,981 INFO L226 Difference]: Without dead ends: 1617 [2024-11-20 16:52:42,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:52:42,985 INFO L432 NwaCegarLoop]: 1382 mSDtfsCounter, 219 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 2136 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-20 16:52:42,986 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 2136 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-20 16:52:43,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-11-20 16:52:43,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1429. [2024-11-20 16:52:43,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 705 states have (on average 2.120567375886525) internal successors, (1495), 1421 states have internal predecessors, (1495), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 16:52:43,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1507 transitions. [2024-11-20 16:52:43,091 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1507 transitions. Word has length 4 [2024-11-20 16:52:43,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:52:43,091 INFO L471 AbstractCegarLoop]: Abstraction has 1429 states and 1507 transitions. [2024-11-20 16:52:43,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:43,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1507 transitions. [2024-11-20 16:52:43,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-20 16:52:43,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:43,093 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-20 16:52:43,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-20 16:52:43,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:43,294 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:43,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1422076526, now seen corresponding path program 1 times [2024-11-20 16:52:43,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:43,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1818402032] [2024-11-20 16:52:43,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:43,296 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:43,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:43,300 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:43,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-20 16:52:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:43,431 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:52:43,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:43,466 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-20 16:52:43,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:52:43,476 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:52:43,477 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:52:43,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1818402032] [2024-11-20 16:52:43,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1818402032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:52:43,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:52:43,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 16:52:43,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315371369] [2024-11-20 16:52:43,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:52:43,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:52:43,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:52:43,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:52:43,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:52:43,481 INFO L87 Difference]: Start difference. First operand 1429 states and 1507 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:45,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:52:45,424 INFO L93 Difference]: Finished difference Result 1335 states and 1411 transitions. [2024-11-20 16:52:45,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:52:45,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-20 16:52:45,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:52:45,429 INFO L225 Difference]: With dead ends: 1335 [2024-11-20 16:52:45,429 INFO L226 Difference]: Without dead ends: 1335 [2024-11-20 16:52:45,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:52:45,430 INFO L432 NwaCegarLoop]: 770 mSDtfsCounter, 1029 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 841 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1035 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-20 16:52:45,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1035 Valid, 880 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 841 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-20 16:52:45,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1335 states. [2024-11-20 16:52:45,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1335 to 1335. [2024-11-20 16:52:45,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 705 states have (on average 1.9843971631205675) internal successors, (1399), 1327 states have internal predecessors, (1399), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 16:52:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1411 transitions. [2024-11-20 16:52:45,455 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1411 transitions. Word has length 6 [2024-11-20 16:52:45,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:52:45,455 INFO L471 AbstractCegarLoop]: Abstraction has 1335 states and 1411 transitions. [2024-11-20 16:52:45,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:45,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1411 transitions. [2024-11-20 16:52:45,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-20 16:52:45,457 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:45,457 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-20 16:52:45,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-20 16:52:45,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:45,658 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:45,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:45,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1422076527, now seen corresponding path program 1 times [2024-11-20 16:52:45,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:45,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133889124] [2024-11-20 16:52:45,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:45,659 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:45,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:45,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:45,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-20 16:52:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:45,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 16:52:45,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:45,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-20 16:52:45,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:52:45,829 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:52:45,829 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:52:45,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133889124] [2024-11-20 16:52:45,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133889124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:52:45,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:52:45,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 16:52:45,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161422122] [2024-11-20 16:52:45,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:52:45,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:52:45,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:52:45,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:52:45,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:52:45,834 INFO L87 Difference]: Start difference. First operand 1335 states and 1411 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:48,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:52:48,405 INFO L93 Difference]: Finished difference Result 1655 states and 1751 transitions. [2024-11-20 16:52:48,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:52:48,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-20 16:52:48,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:52:48,410 INFO L225 Difference]: With dead ends: 1655 [2024-11-20 16:52:48,411 INFO L226 Difference]: Without dead ends: 1655 [2024-11-20 16:52:48,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:52:48,412 INFO L432 NwaCegarLoop]: 1136 mSDtfsCounter, 522 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-20 16:52:48,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1684 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-20 16:52:48,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1655 states. [2024-11-20 16:52:48,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1655 to 1502. [2024-11-20 16:52:48,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 882 states have (on average 1.9489795918367347) internal successors, (1719), 1494 states have internal predecessors, (1719), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-20 16:52:48,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 1731 transitions. [2024-11-20 16:52:48,450 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 1731 transitions. Word has length 6 [2024-11-20 16:52:48,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:52:48,451 INFO L471 AbstractCegarLoop]: Abstraction has 1502 states and 1731 transitions. [2024-11-20 16:52:48,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:48,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 1731 transitions. [2024-11-20 16:52:48,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-20 16:52:48,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:48,452 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:52:48,456 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-20 16:52:48,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:48,653 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:48,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:48,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1136358850, now seen corresponding path program 1 times [2024-11-20 16:52:48,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:48,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1072710923] [2024-11-20 16:52:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:48,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:48,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:48,658 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:48,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-20 16:52:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:48,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 16:52:48,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:52:48,818 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:52:48,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:52:48,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1072710923] [2024-11-20 16:52:48,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1072710923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:52:48,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:52:48,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:52:48,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58855389] [2024-11-20 16:52:48,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:52:48,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:52:48,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:52:48,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:52:48,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:52:48,822 INFO L87 Difference]: Start difference. First operand 1502 states and 1731 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:49,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:52:49,443 INFO L93 Difference]: Finished difference Result 2271 states and 2626 transitions. [2024-11-20 16:52:49,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:52:49,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-20 16:52:49,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:52:49,451 INFO L225 Difference]: With dead ends: 2271 [2024-11-20 16:52:49,451 INFO L226 Difference]: Without dead ends: 2271 [2024-11-20 16:52:49,451 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:52:49,452 INFO L432 NwaCegarLoop]: 1368 mSDtfsCounter, 691 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 3857 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 16:52:49,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 3857 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 16:52:49,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2271 states. [2024-11-20 16:52:49,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2271 to 1972. [2024-11-20 16:52:49,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1972 states, 1352 states have (on average 1.9289940828402368) internal successors, (2608), 1961 states have internal predecessors, (2608), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:52:49,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1972 states to 1972 states and 2626 transitions. [2024-11-20 16:52:49,493 INFO L78 Accepts]: Start accepts. Automaton has 1972 states and 2626 transitions. Word has length 7 [2024-11-20 16:52:49,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:52:49,493 INFO L471 AbstractCegarLoop]: Abstraction has 1972 states and 2626 transitions. [2024-11-20 16:52:49,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:49,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1972 states and 2626 transitions. [2024-11-20 16:52:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-20 16:52:49,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:49,498 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:52:49,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-20 16:52:49,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:49,699 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr627REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:49,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:49,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1119196844, now seen corresponding path program 1 times [2024-11-20 16:52:49,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:49,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510331205] [2024-11-20 16:52:49,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:49,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:49,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:49,702 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:49,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-20 16:52:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:49,819 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:52:49,821 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:52:49,874 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:52:49,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:52:49,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510331205] [2024-11-20 16:52:49,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510331205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:52:49,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:52:49,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:52:49,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351034768] [2024-11-20 16:52:49,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:52:49,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:52:49,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:52:49,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:52:49,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:52:49,876 INFO L87 Difference]: Start difference. First operand 1972 states and 2626 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:50,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:52:50,056 INFO L93 Difference]: Finished difference Result 2049 states and 2567 transitions. [2024-11-20 16:52:50,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:52:50,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-20 16:52:50,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:52:50,063 INFO L225 Difference]: With dead ends: 2049 [2024-11-20 16:52:50,063 INFO L226 Difference]: Without dead ends: 2049 [2024-11-20 16:52:50,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:52:50,065 INFO L432 NwaCegarLoop]: 1440 mSDtfsCounter, 316 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 16:52:50,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 2744 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 16:52:50,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2049 states. [2024-11-20 16:52:50,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2049 to 1832. [2024-11-20 16:52:50,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1832 states, 1212 states have (on average 1.938118811881188) internal successors, (2349), 1821 states have internal predecessors, (2349), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:52:50,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1832 states to 1832 states and 2367 transitions. [2024-11-20 16:52:50,102 INFO L78 Accepts]: Start accepts. Automaton has 1832 states and 2367 transitions. Word has length 9 [2024-11-20 16:52:50,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:52:50,102 INFO L471 AbstractCegarLoop]: Abstraction has 1832 states and 2367 transitions. [2024-11-20 16:52:50,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:50,103 INFO L276 IsEmpty]: Start isEmpty. Operand 1832 states and 2367 transitions. [2024-11-20 16:52:50,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-20 16:52:50,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:50,105 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:52:50,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-20 16:52:50,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:50,306 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:50,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:50,306 INFO L85 PathProgramCache]: Analyzing trace with hash 242137368, now seen corresponding path program 1 times [2024-11-20 16:52:50,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:50,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624205352] [2024-11-20 16:52:50,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:50,307 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:50,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:50,308 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:50,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-20 16:52:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:50,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-20 16:52:50,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:50,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:52:50,454 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:52:50,454 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:52:50,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624205352] [2024-11-20 16:52:50,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624205352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:52:50,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:52:50,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:52:50,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752951507] [2024-11-20 16:52:50,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:52:50,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 16:52:50,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:52:50,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 16:52:50,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:52:50,455 INFO L87 Difference]: Start difference. First operand 1832 states and 2367 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:50,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:52:50,480 INFO L93 Difference]: Finished difference Result 1772 states and 2281 transitions. [2024-11-20 16:52:50,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 16:52:50,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-20 16:52:50,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:52:50,486 INFO L225 Difference]: With dead ends: 1772 [2024-11-20 16:52:50,486 INFO L226 Difference]: Without dead ends: 1772 [2024-11-20 16:52:50,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 16:52:50,489 INFO L432 NwaCegarLoop]: 1316 mSDtfsCounter, 71 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2569 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 16:52:50,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2569 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 16:52:50,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1772 states. [2024-11-20 16:52:50,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1772 to 1772. [2024-11-20 16:52:50,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1772 states, 1176 states have (on average 1.9243197278911566) internal successors, (2263), 1761 states have internal predecessors, (2263), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:52:50,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1772 states to 1772 states and 2281 transitions. [2024-11-20 16:52:50,520 INFO L78 Accepts]: Start accepts. Automaton has 1772 states and 2281 transitions. Word has length 12 [2024-11-20 16:52:50,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:52:50,520 INFO L471 AbstractCegarLoop]: Abstraction has 1772 states and 2281 transitions. [2024-11-20 16:52:50,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:50,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1772 states and 2281 transitions. [2024-11-20 16:52:50,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-20 16:52:50,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:50,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:52:50,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-20 16:52:50,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:50,724 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr629REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:50,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:50,724 INFO L85 PathProgramCache]: Analyzing trace with hash 169603906, now seen corresponding path program 1 times [2024-11-20 16:52:50,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:50,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490638365] [2024-11-20 16:52:50,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:50,725 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:50,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:50,726 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:50,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-20 16:52:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:50,855 INFO L255 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 16:52:50,857 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:52:50,931 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:52:50,931 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:52:50,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490638365] [2024-11-20 16:52:50,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490638365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:52:50,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:52:50,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:52:50,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294215262] [2024-11-20 16:52:50,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:52:50,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:52:50,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:52:50,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:52:50,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:52:50,935 INFO L87 Difference]: Start difference. First operand 1772 states and 2281 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:51,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:52:51,678 INFO L93 Difference]: Finished difference Result 1965 states and 2480 transitions. [2024-11-20 16:52:51,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:52:51,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-20 16:52:51,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:52:51,684 INFO L225 Difference]: With dead ends: 1965 [2024-11-20 16:52:51,684 INFO L226 Difference]: Without dead ends: 1959 [2024-11-20 16:52:51,684 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:52:51,685 INFO L432 NwaCegarLoop]: 1397 mSDtfsCounter, 275 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 16:52:51,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 3836 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 16:52:51,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2024-11-20 16:52:51,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1766. [2024-11-20 16:52:51,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1766 states, 1170 states have (on average 1.9282051282051282) internal successors, (2256), 1755 states have internal predecessors, (2256), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:52:51,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1766 states to 1766 states and 2274 transitions. [2024-11-20 16:52:51,716 INFO L78 Accepts]: Start accepts. Automaton has 1766 states and 2274 transitions. Word has length 12 [2024-11-20 16:52:51,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:52:51,717 INFO L471 AbstractCegarLoop]: Abstraction has 1766 states and 2274 transitions. [2024-11-20 16:52:51,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:51,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1766 states and 2274 transitions. [2024-11-20 16:52:51,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-20 16:52:51,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:51,717 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:52:51,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-20 16:52:51,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:51,918 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:51,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:51,919 INFO L85 PathProgramCache]: Analyzing trace with hash 765772946, now seen corresponding path program 1 times [2024-11-20 16:52:51,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:51,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2109714617] [2024-11-20 16:52:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:51,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:51,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:51,920 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:51,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-20 16:52:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:52,058 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:52:52,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:52,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:52:52,076 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:52:52,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:52:52,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2109714617] [2024-11-20 16:52:52,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2109714617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:52:52,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:52:52,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:52:52,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349129414] [2024-11-20 16:52:52,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:52:52,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:52:52,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:52:52,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:52:52,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:52:52,078 INFO L87 Difference]: Start difference. First operand 1766 states and 2274 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:52,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:52:52,156 INFO L93 Difference]: Finished difference Result 1736 states and 2216 transitions. [2024-11-20 16:52:52,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 16:52:52,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-20 16:52:52,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:52:52,162 INFO L225 Difference]: With dead ends: 1736 [2024-11-20 16:52:52,163 INFO L226 Difference]: Without dead ends: 1736 [2024-11-20 16:52:52,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:52:52,163 INFO L432 NwaCegarLoop]: 1271 mSDtfsCounter, 48 mSDsluCounter, 2516 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3787 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 16:52:52,164 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3787 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 16:52:52,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2024-11-20 16:52:52,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1736. [2024-11-20 16:52:52,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1154 states have (on average 1.9046793760831888) internal successors, (2198), 1725 states have internal predecessors, (2198), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:52:52,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2216 transitions. [2024-11-20 16:52:52,188 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2216 transitions. Word has length 14 [2024-11-20 16:52:52,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:52:52,189 INFO L471 AbstractCegarLoop]: Abstraction has 1736 states and 2216 transitions. [2024-11-20 16:52:52,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:52,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2216 transitions. [2024-11-20 16:52:52,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-20 16:52:52,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:52,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:52:52,196 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-20 16:52:52,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:52,391 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:52,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:52,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1067586272, now seen corresponding path program 1 times [2024-11-20 16:52:52,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:52,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1917502977] [2024-11-20 16:52:52,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:52,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:52,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:52,393 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:52,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-20 16:52:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:52,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 16:52:52,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:52,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-20 16:52:52,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:52:52,600 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:52:52,600 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:52:52,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1917502977] [2024-11-20 16:52:52,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1917502977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:52:52,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:52:52,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:52:52,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819096436] [2024-11-20 16:52:52,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:52:52,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:52:52,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:52:52,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:52:52,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:52:52,603 INFO L87 Difference]: Start difference. First operand 1736 states and 2216 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:55,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:52:55,132 INFO L93 Difference]: Finished difference Result 1740 states and 2216 transitions. [2024-11-20 16:52:55,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:52:55,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-20 16:52:55,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:52:55,136 INFO L225 Difference]: With dead ends: 1740 [2024-11-20 16:52:55,137 INFO L226 Difference]: Without dead ends: 1740 [2024-11-20 16:52:55,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:52:55,137 INFO L432 NwaCegarLoop]: 724 mSDtfsCounter, 966 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 972 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-20 16:52:55,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [972 Valid, 1401 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1470 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-20 16:52:55,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1740 states. [2024-11-20 16:52:55,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1740 to 1732. [2024-11-20 16:52:55,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1732 states, 1154 states have (on average 1.8977469670710572) internal successors, (2190), 1721 states have internal predecessors, (2190), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:52:55,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1732 states to 1732 states and 2208 transitions. [2024-11-20 16:52:55,165 INFO L78 Accepts]: Start accepts. Automaton has 1732 states and 2208 transitions. Word has length 28 [2024-11-20 16:52:55,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:52:55,166 INFO L471 AbstractCegarLoop]: Abstraction has 1732 states and 2208 transitions. [2024-11-20 16:52:55,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:55,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1732 states and 2208 transitions. [2024-11-20 16:52:55,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-20 16:52:55,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:55,166 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:52:55,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2024-11-20 16:52:55,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:55,367 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:55,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:55,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1067586273, now seen corresponding path program 1 times [2024-11-20 16:52:55,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:55,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665101260] [2024-11-20 16:52:55,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:55,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:55,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:55,369 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:55,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-20 16:52:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:55,524 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 16:52:55,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:55,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-20 16:52:55,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:52:55,743 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:52:55,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:52:55,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665101260] [2024-11-20 16:52:55,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665101260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:52:55,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:52:55,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:52:55,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060573020] [2024-11-20 16:52:55,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:52:55,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:52:55,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:52:55,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:52:55,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:52:55,747 INFO L87 Difference]: Start difference. First operand 1732 states and 2208 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:58,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:52:58,573 INFO L93 Difference]: Finished difference Result 1889 states and 2228 transitions. [2024-11-20 16:52:58,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:52:58,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-20 16:52:58,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:52:58,579 INFO L225 Difference]: With dead ends: 1889 [2024-11-20 16:52:58,579 INFO L226 Difference]: Without dead ends: 1889 [2024-11-20 16:52:58,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:52:58,580 INFO L432 NwaCegarLoop]: 1400 mSDtfsCounter, 455 mSDsluCounter, 1317 mSDsCounter, 0 mSdLazyCounter, 1637 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 2717 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-20 16:52:58,581 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 2717 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1637 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-20 16:52:58,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1889 states. [2024-11-20 16:52:58,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1889 to 1728. [2024-11-20 16:52:58,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1728 states, 1154 states have (on average 1.8908145580589255) internal successors, (2182), 1717 states have internal predecessors, (2182), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:52:58,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1728 states to 1728 states and 2200 transitions. [2024-11-20 16:52:58,602 INFO L78 Accepts]: Start accepts. Automaton has 1728 states and 2200 transitions. Word has length 28 [2024-11-20 16:52:58,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:52:58,602 INFO L471 AbstractCegarLoop]: Abstraction has 1728 states and 2200 transitions. [2024-11-20 16:52:58,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:58,602 INFO L276 IsEmpty]: Start isEmpty. Operand 1728 states and 2200 transitions. [2024-11-20 16:52:58,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-20 16:52:58,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:58,604 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:52:58,609 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-20 16:52:58,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:58,805 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:58,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:58,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1271201802, now seen corresponding path program 1 times [2024-11-20 16:52:58,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:58,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [925241081] [2024-11-20 16:52:58,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:58,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:58,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:58,809 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:58,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-20 16:52:59,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:59,034 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:52:59,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:52:59,078 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:52:59,078 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:52:59,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [925241081] [2024-11-20 16:52:59,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [925241081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:52:59,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:52:59,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:52:59,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558643023] [2024-11-20 16:52:59,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:52:59,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:52:59,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:52:59,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:52:59,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:52:59,080 INFO L87 Difference]: Start difference. First operand 1728 states and 2200 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:59,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:52:59,137 INFO L93 Difference]: Finished difference Result 1716 states and 2180 transitions. [2024-11-20 16:52:59,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 16:52:59,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-20 16:52:59,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:52:59,144 INFO L225 Difference]: With dead ends: 1716 [2024-11-20 16:52:59,145 INFO L226 Difference]: Without dead ends: 1716 [2024-11-20 16:52:59,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:52:59,145 INFO L432 NwaCegarLoop]: 1265 mSDtfsCounter, 21 mSDsluCounter, 2499 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3764 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 16:52:59,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3764 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 16:52:59,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-11-20 16:52:59,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1716. [2024-11-20 16:52:59,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1716 states, 1142 states have (on average 1.893169877408056) internal successors, (2162), 1705 states have internal predecessors, (2162), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:52:59,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1716 states to 1716 states and 2180 transitions. [2024-11-20 16:52:59,170 INFO L78 Accepts]: Start accepts. Automaton has 1716 states and 2180 transitions. Word has length 47 [2024-11-20 16:52:59,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:52:59,171 INFO L471 AbstractCegarLoop]: Abstraction has 1716 states and 2180 transitions. [2024-11-20 16:52:59,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:52:59,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1716 states and 2180 transitions. [2024-11-20 16:52:59,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-20 16:52:59,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:52:59,175 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:52:59,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2024-11-20 16:52:59,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:59,376 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:52:59,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:52:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2058762942, now seen corresponding path program 1 times [2024-11-20 16:52:59,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:52:59,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84137410] [2024-11-20 16:52:59,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:52:59,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:52:59,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:52:59,378 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:52:59,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2024-11-20 16:52:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:52:59,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 16:52:59,746 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:52:59,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-20 16:52:59,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-20 16:53:00,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-20 16:53:00,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-20 16:53:00,299 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-20 16:53:00,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2024-11-20 16:53:00,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:00,310 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:53:00,310 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:53:00,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84137410] [2024-11-20 16:53:00,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84137410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:53:00,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:53:00,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 16:53:00,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074996005] [2024-11-20 16:53:00,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:53:00,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:53:00,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:53:00,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:53:00,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:53:00,312 INFO L87 Difference]: Start difference. First operand 1716 states and 2180 transitions. Second operand has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:53:02,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:53:02,001 INFO L93 Difference]: Finished difference Result 1632 states and 2055 transitions. [2024-11-20 16:53:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:53:02,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-20 16:53:02,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:53:02,005 INFO L225 Difference]: With dead ends: 1632 [2024-11-20 16:53:02,005 INFO L226 Difference]: Without dead ends: 1632 [2024-11-20 16:53:02,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:53:02,006 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 1764 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 655 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-20 16:53:02,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 655 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-20 16:53:02,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-11-20 16:53:02,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1455. [2024-11-20 16:53:02,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 965 states have (on average 1.7689119170984455) internal successors, (1707), 1444 states have internal predecessors, (1707), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:53:02,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1725 transitions. [2024-11-20 16:53:02,019 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1725 transitions. Word has length 55 [2024-11-20 16:53:02,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:53:02,020 INFO L471 AbstractCegarLoop]: Abstraction has 1455 states and 1725 transitions. [2024-11-20 16:53:02,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:53:02,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1725 transitions. [2024-11-20 16:53:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 16:53:02,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:53:02,021 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:53:02,030 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2024-11-20 16:53:02,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:02,222 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:53:02,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:53:02,222 INFO L85 PathProgramCache]: Analyzing trace with hash 299959545, now seen corresponding path program 1 times [2024-11-20 16:53:02,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:53:02,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1028751995] [2024-11-20 16:53:02,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:53:02,223 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:02,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:53:02,226 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:53:02,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-20 16:53:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:53:02,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 16:53:02,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:53:02,482 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-20 16:53:02,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-20 16:53:02,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-20 16:53:02,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:02,534 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:53:02,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:53:02,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1028751995] [2024-11-20 16:53:02,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1028751995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:53:02,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:53:02,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:53:02,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360056852] [2024-11-20 16:53:02,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:53:02,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 16:53:02,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:53:02,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 16:53:02,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:53:02,537 INFO L87 Difference]: Start difference. First operand 1455 states and 1725 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:53:04,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:53:04,551 INFO L93 Difference]: Finished difference Result 1454 states and 1723 transitions. [2024-11-20 16:53:04,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 16:53:04,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-20 16:53:04,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:53:04,556 INFO L225 Difference]: With dead ends: 1454 [2024-11-20 16:53:04,556 INFO L226 Difference]: Without dead ends: 1454 [2024-11-20 16:53:04,556 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 16:53:04,557 INFO L432 NwaCegarLoop]: 1192 mSDtfsCounter, 2 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2993 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-20 16:53:04,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2993 Invalid, 1783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-20 16:53:04,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1454 states. [2024-11-20 16:53:04,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1454 to 1454. [2024-11-20 16:53:04,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 965 states have (on average 1.766839378238342) internal successors, (1705), 1443 states have internal predecessors, (1705), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:53:04,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1723 transitions. [2024-11-20 16:53:04,573 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1723 transitions. Word has length 60 [2024-11-20 16:53:04,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:53:04,574 INFO L471 AbstractCegarLoop]: Abstraction has 1454 states and 1723 transitions. [2024-11-20 16:53:04,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:53:04,574 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1723 transitions. [2024-11-20 16:53:04,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 16:53:04,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:53:04,575 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:53:04,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-20 16:53:04,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:04,776 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:53:04,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:53:04,776 INFO L85 PathProgramCache]: Analyzing trace with hash 299959546, now seen corresponding path program 1 times [2024-11-20 16:53:04,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:53:04,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1839968631] [2024-11-20 16:53:04,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:53:04,777 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:04,777 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:53:04,780 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:53:04,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2024-11-20 16:53:05,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:53:05,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-20 16:53:05,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:53:05,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-20 16:53:05,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-11-20 16:53:05,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-20 16:53:05,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-11-20 16:53:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:05,112 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:53:05,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:53:05,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1839968631] [2024-11-20 16:53:05,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1839968631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:53:05,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:53:05,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:53:05,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226197619] [2024-11-20 16:53:05,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:53:05,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 16:53:05,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:53:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 16:53:05,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 16:53:05,114 INFO L87 Difference]: Start difference. First operand 1454 states and 1723 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:53:07,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:53:07,767 INFO L93 Difference]: Finished difference Result 1453 states and 1721 transitions. [2024-11-20 16:53:07,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 16:53:07,767 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-20 16:53:07,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:53:07,771 INFO L225 Difference]: With dead ends: 1453 [2024-11-20 16:53:07,771 INFO L226 Difference]: Without dead ends: 1453 [2024-11-20 16:53:07,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 16:53:07,772 INFO L432 NwaCegarLoop]: 1192 mSDtfsCounter, 1 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3024 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-20 16:53:07,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3024 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-20 16:53:07,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2024-11-20 16:53:07,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1453. [2024-11-20 16:53:07,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 963 states have (on average 1.7684319833852544) internal successors, (1703), 1442 states have internal predecessors, (1703), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-20 16:53:07,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 1721 transitions. [2024-11-20 16:53:07,789 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 1721 transitions. Word has length 60 [2024-11-20 16:53:07,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:53:07,790 INFO L471 AbstractCegarLoop]: Abstraction has 1453 states and 1721 transitions. [2024-11-20 16:53:07,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 16:53:07,790 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 1721 transitions. [2024-11-20 16:53:07,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-20 16:53:07,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:53:07,791 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:53:07,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-20 16:53:07,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:07,992 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:53:07,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:53:07,992 INFO L85 PathProgramCache]: Analyzing trace with hash 217393312, now seen corresponding path program 1 times [2024-11-20 16:53:07,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:53:07,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [984255130] [2024-11-20 16:53:07,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:53:07,993 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:07,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:53:07,994 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:53:07,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-20 16:53:08,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:53:08,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 16:53:08,260 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:53:08,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:08,289 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 16:53:08,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:53:08,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [984255130] [2024-11-20 16:53:08,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [984255130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 16:53:08,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 16:53:08,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 16:53:08,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463642958] [2024-11-20 16:53:08,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 16:53:08,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 16:53:08,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:53:08,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 16:53:08,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:53:08,292 INFO L87 Difference]: Start difference. First operand 1453 states and 1721 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 16:53:08,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:53:08,349 INFO L93 Difference]: Finished difference Result 1456 states and 1727 transitions. [2024-11-20 16:53:08,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 16:53:08,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2024-11-20 16:53:08,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:53:08,358 INFO L225 Difference]: With dead ends: 1456 [2024-11-20 16:53:08,358 INFO L226 Difference]: Without dead ends: 1456 [2024-11-20 16:53:08,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 16:53:08,359 INFO L432 NwaCegarLoop]: 1191 mSDtfsCounter, 0 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 16:53:08,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3565 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 16:53:08,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2024-11-20 16:53:08,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1456. [2024-11-20 16:53:08,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 965 states have (on average 1.767875647668394) internal successors, (1706), 1445 states have internal predecessors, (1706), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 16:53:08,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1727 transitions. [2024-11-20 16:53:08,381 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1727 transitions. Word has length 68 [2024-11-20 16:53:08,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:53:08,381 INFO L471 AbstractCegarLoop]: Abstraction has 1456 states and 1727 transitions. [2024-11-20 16:53:08,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-20 16:53:08,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1727 transitions. [2024-11-20 16:53:08,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-20 16:53:08,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:53:08,382 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:53:08,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-20 16:53:08,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:08,582 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:53:08,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:53:08,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1249531690, now seen corresponding path program 1 times [2024-11-20 16:53:08,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:53:08,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587152367] [2024-11-20 16:53:08,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 16:53:08,584 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:08,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:53:08,585 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:53:08,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-20 16:53:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 16:53:08,803 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 16:53:08,805 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:53:08,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:08,823 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 16:53:08,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:08,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:53:08,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587152367] [2024-11-20 16:53:08,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587152367] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 16:53:08,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 16:53:08,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-20 16:53:08,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484830376] [2024-11-20 16:53:08,886 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 16:53:08,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 16:53:08,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:53:08,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 16:53:08,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 16:53:08,887 INFO L87 Difference]: Start difference. First operand 1456 states and 1727 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 16:53:09,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:53:09,045 INFO L93 Difference]: Finished difference Result 1468 states and 1746 transitions. [2024-11-20 16:53:09,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 16:53:09,046 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 69 [2024-11-20 16:53:09,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:53:09,054 INFO L225 Difference]: With dead ends: 1468 [2024-11-20 16:53:09,058 INFO L226 Difference]: Without dead ends: 1468 [2024-11-20 16:53:09,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-20 16:53:09,059 INFO L432 NwaCegarLoop]: 1190 mSDtfsCounter, 7 mSDsluCounter, 3559 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4749 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 16:53:09,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4749 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 16:53:09,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1468 states. [2024-11-20 16:53:09,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1468 to 1466. [2024-11-20 16:53:09,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 974 states have (on average 1.76694045174538) internal successors, (1721), 1454 states have internal predecessors, (1721), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 16:53:09,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1742 transitions. [2024-11-20 16:53:09,089 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1742 transitions. Word has length 69 [2024-11-20 16:53:09,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:53:09,090 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 1742 transitions. [2024-11-20 16:53:09,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 16:53:09,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1742 transitions. [2024-11-20 16:53:09,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-20 16:53:09,090 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:53:09,091 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:53:09,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-20 16:53:09,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:09,292 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:53:09,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:53:09,292 INFO L85 PathProgramCache]: Analyzing trace with hash -315718112, now seen corresponding path program 2 times [2024-11-20 16:53:09,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:53:09,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [899157803] [2024-11-20 16:53:09,293 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 16:53:09,293 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:09,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:53:09,296 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:53:09,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-20 16:53:09,656 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 16:53:09,656 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 16:53:09,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-20 16:53:09,668 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:53:09,730 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:09,730 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 16:53:09,936 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:09,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:53:09,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [899157803] [2024-11-20 16:53:09,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [899157803] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 16:53:09,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 16:53:09,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-20 16:53:09,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706630053] [2024-11-20 16:53:09,937 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 16:53:09,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 16:53:09,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:53:09,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 16:53:09,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-20 16:53:09,938 INFO L87 Difference]: Start difference. First operand 1466 states and 1742 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 16:53:10,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:53:10,380 INFO L93 Difference]: Finished difference Result 1481 states and 1763 transitions. [2024-11-20 16:53:10,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 16:53:10,386 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 72 [2024-11-20 16:53:10,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:53:10,394 INFO L225 Difference]: With dead ends: 1481 [2024-11-20 16:53:10,394 INFO L226 Difference]: Without dead ends: 1475 [2024-11-20 16:53:10,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-20 16:53:10,395 INFO L432 NwaCegarLoop]: 1191 mSDtfsCounter, 10 mSDsluCounter, 8293 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9484 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 16:53:10,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9484 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 16:53:10,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1475 states. [2024-11-20 16:53:10,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1475 to 1475. [2024-11-20 16:53:10,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 983 states have (on average 1.7619532044760935) internal successors, (1732), 1463 states have internal predecessors, (1732), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 16:53:10,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1753 transitions. [2024-11-20 16:53:10,425 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1753 transitions. Word has length 72 [2024-11-20 16:53:10,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:53:10,426 INFO L471 AbstractCegarLoop]: Abstraction has 1475 states and 1753 transitions. [2024-11-20 16:53:10,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 16:53:10,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1753 transitions. [2024-11-20 16:53:10,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 16:53:10,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:53:10,429 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:53:10,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-20 16:53:10,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:10,630 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:53:10,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:53:10,631 INFO L85 PathProgramCache]: Analyzing trace with hash -25531808, now seen corresponding path program 3 times [2024-11-20 16:53:10,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:53:10,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356241868] [2024-11-20 16:53:10,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 16:53:10,632 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:10,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:53:10,635 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:53:10,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-20 16:53:11,142 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-20 16:53:11,142 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 16:53:11,152 INFO L255 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 16:53:11,155 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:53:11,283 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:11,283 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 16:53:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:11,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:53:11,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356241868] [2024-11-20 16:53:11,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [356241868] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 16:53:11,737 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 16:53:11,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-20 16:53:11,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082749789] [2024-11-20 16:53:11,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 16:53:11,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-20 16:53:11,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:53:11,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-20 16:53:11,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-20 16:53:11,739 INFO L87 Difference]: Start difference. First operand 1475 states and 1753 transitions. Second operand has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 16:53:13,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:53:13,031 INFO L93 Difference]: Finished difference Result 1499 states and 1792 transitions. [2024-11-20 16:53:13,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-20 16:53:13,032 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 78 [2024-11-20 16:53:13,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:53:13,041 INFO L225 Difference]: With dead ends: 1499 [2024-11-20 16:53:13,041 INFO L226 Difference]: Without dead ends: 1493 [2024-11-20 16:53:13,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-20 16:53:13,042 INFO L432 NwaCegarLoop]: 1191 mSDtfsCounter, 26 mSDsluCounter, 16606 mSDsCounter, 0 mSdLazyCounter, 626 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 17797 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 626 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-20 16:53:13,046 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 17797 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 626 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-20 16:53:13,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2024-11-20 16:53:13,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1493. [2024-11-20 16:53:13,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1493 states, 1001 states have (on average 1.7532467532467533) internal successors, (1755), 1481 states have internal predecessors, (1755), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 16:53:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1493 states to 1493 states and 1776 transitions. [2024-11-20 16:53:13,072 INFO L78 Accepts]: Start accepts. Automaton has 1493 states and 1776 transitions. Word has length 78 [2024-11-20 16:53:13,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:53:13,073 INFO L471 AbstractCegarLoop]: Abstraction has 1493 states and 1776 transitions. [2024-11-20 16:53:13,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.423076923076923) internal successors, (89), 26 states have internal predecessors, (89), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 16:53:13,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1493 states and 1776 transitions. [2024-11-20 16:53:13,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-20 16:53:13,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:53:13,074 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:53:13,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-20 16:53:13,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:13,275 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:53:13,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:53:13,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1120820512, now seen corresponding path program 4 times [2024-11-20 16:53:13,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:53:13,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633353870] [2024-11-20 16:53:13,276 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-20 16:53:13,276 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:13,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:53:13,279 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:53:13,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-20 16:53:13,685 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-20 16:53:13,685 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 16:53:13,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-20 16:53:13,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:53:14,010 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:14,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 16:53:15,189 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 16:53:15,189 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:53:15,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633353870] [2024-11-20 16:53:15,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633353870] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 16:53:15,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 16:53:15,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-20 16:53:15,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753936039] [2024-11-20 16:53:15,190 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 16:53:15,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-20 16:53:15,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-20 16:53:15,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-20 16:53:15,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-20 16:53:15,192 INFO L87 Difference]: Start difference. First operand 1493 states and 1776 transitions. Second operand has 50 states, 50 states have (on average 2.26) internal successors, (113), 50 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 16:53:19,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 16:53:19,492 INFO L93 Difference]: Finished difference Result 1533 states and 1850 transitions. [2024-11-20 16:53:19,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-20 16:53:19,493 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.26) internal successors, (113), 50 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 90 [2024-11-20 16:53:19,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 16:53:19,495 INFO L225 Difference]: With dead ends: 1533 [2024-11-20 16:53:19,496 INFO L226 Difference]: Without dead ends: 1529 [2024-11-20 16:53:19,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-20 16:53:19,498 INFO L432 NwaCegarLoop]: 1190 mSDtfsCounter, 32 mSDsluCounter, 28464 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 29654 SdHoareTripleChecker+Invalid, 2065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-20 16:53:19,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 29654 Invalid, 2065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-20 16:53:19,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2024-11-20 16:53:19,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1527. [2024-11-20 16:53:19,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1035 states have (on average 1.740096618357488) internal successors, (1801), 1515 states have internal predecessors, (1801), 9 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-20 16:53:19,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1822 transitions. [2024-11-20 16:53:19,519 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1822 transitions. Word has length 90 [2024-11-20 16:53:19,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 16:53:19,520 INFO L471 AbstractCegarLoop]: Abstraction has 1527 states and 1822 transitions. [2024-11-20 16:53:19,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.26) internal successors, (113), 50 states have internal predecessors, (113), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-20 16:53:19,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1822 transitions. [2024-11-20 16:53:19,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-20 16:53:19,521 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 16:53:19,521 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 16:53:19,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-20 16:53:19,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:19,722 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-20 16:53:19,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 16:53:19,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2015564512, now seen corresponding path program 5 times [2024-11-20 16:53:19,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-20 16:53:19,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091654902] [2024-11-20 16:53:19,723 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 16:53:19,723 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-20 16:53:19,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-20 16:53:19,724 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-20 16:53:19,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-20 16:53:20,893 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-20 16:53:20,893 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 16:53:20,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-20 16:53:20,932 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 16:53:20,950 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-20 16:53:20,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 22 [2024-11-20 16:53:21,354 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-11-20 16:53:21,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 45 [2024-11-20 16:53:21,410 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-20 16:53:21,568 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 24 [2024-11-20 16:53:23,889 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-20 16:53:23,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 59 [2024-11-20 16:53:23,963 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 27 [2024-11-20 16:53:24,035 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-20 16:53:24,035 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 16:53:24,352 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-20 16:53:24,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091654902] [2024-11-20 16:53:24,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091654902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 16:53:24,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1856812644] [2024-11-20 16:53:24,352 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-20 16:53:24,352 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-20 16:53:24,352 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-20 16:53:24,354 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-20 16:53:24,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process