./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml', '-i', '../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-2.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '2c8bfc4504f1d1d767281638f115bf6ca8337de4769381189ae1d6a9b301298b'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 2c8bfc4504f1d1d767281638f115bf6ca8337de4769381189ae1d6a9b301298b --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 18:51:19,718 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 18:51:19,829 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 18:51:19,833 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 18:51:19,833 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 18:51:19,850 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 18:51:19,850 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 18:51:19,850 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 18:51:19,851 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 18:51:19,851 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 18:51:19,851 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 18:51:19,851 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 18:51:19,851 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 18:51:19,851 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 18:51:19,851 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 18:51:19,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 18:51:19,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 18:51:19,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 18:51:19,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 18:51:19,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 18:51:19,851 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 18:51:19,851 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 18:51:19,852 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 18:51:19,852 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 18:51:19,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 18:51:19,853 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 2c8bfc4504f1d1d767281638f115bf6ca8337de4769381189ae1d6a9b301298b [2024-11-07 18:51:20,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 18:51:20,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 18:51:20,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 18:51:20,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 18:51:20,125 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 18:51:20,127 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-2.i [2024-11-07 18:51:21,498 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 18:51:21,798 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 18:51:21,798 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-2.i [2024-11-07 18:51:21,814 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a43435e19/2fa7a060426948b690ebc597df9ba7a9/FLAG69f17116a [2024-11-07 18:51:22,071 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/a43435e19/2fa7a060426948b690ebc597df9ba7a9 [2024-11-07 18:51:22,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 18:51:22,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 18:51:22,076 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 18:51:22,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 18:51:22,079 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 18:51:22,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:51:22" (1/1) ... [2024-11-07 18:51:22,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e7c531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:22, skipping insertion in model container [2024-11-07 18:51:22,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:51:22" (1/1) ... [2024-11-07 18:51:22,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 18:51:22,400 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,425 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,429 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,432 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,436 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,455 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,457 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,458 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,461 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,467 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,468 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,469 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,470 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,471 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,471 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,474 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:22,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 18:51:22,485 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) [2024-11-07 18:51:22,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@97edf4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:22, skipping insertion in model container [2024-11-07 18:51:22,486 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 18:51:22,486 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-07 18:51:22,491 INFO L158 Benchmark]: Toolchain (without parser) took 412.84ms. Allocated memory is still 142.6MB. Free memory was 115.6MB in the beginning and 95.0MB in the end (delta: 20.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 18:51:22,491 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 18:51:22,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.54ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 95.0MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 18:51:22,493 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 81.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.54ms. Allocated memory is still 142.6MB. Free memory was 115.5MB in the beginning and 95.0MB in the end (delta: 20.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-2.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 2c8bfc4504f1d1d767281638f115bf6ca8337de4769381189ae1d6a9b301298b --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 18:51:24,171 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 18:51:24,269 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-07 18:51:24,275 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 18:51:24,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 18:51:24,298 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 18:51:24,299 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 18:51:24,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 18:51:24,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 18:51:24,299 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 18:51:24,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 18:51:24,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 18:51:24,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 18:51:24,300 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 18:51:24,301 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 18:51:24,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 18:51:24,301 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 18:51:24,301 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 18:51:24,301 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 18:51:24,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 18:51:24,301 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 18:51:24,302 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 18:51:24,302 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 18:51:24,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 18:51:24,302 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 18:51:24,302 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 18:51:24,302 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 18:51:24,302 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 18:51:24,302 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 18:51:24,302 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 18:51:24,302 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 18:51:24,303 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 18:51:24,303 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 18:51:24,303 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 18:51:24,303 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 18:51:24,303 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 18:51:24,303 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 18:51:24,303 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 18:51:24,303 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 18:51:24,303 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 18:51:24,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 18:51:24,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 18:51:24,304 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 18:51:24,304 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 18:51:24,304 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 2c8bfc4504f1d1d767281638f115bf6ca8337de4769381189ae1d6a9b301298b [2024-11-07 18:51:24,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 18:51:24,573 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 18:51:24,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 18:51:24,575 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 18:51:24,575 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 18:51:24,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-2.i [2024-11-07 18:51:25,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 18:51:26,099 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 18:51:26,102 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-2.i [2024-11-07 18:51:26,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/39b125c6c/d8086e3d8b4c41f4afe9f3fc06f0bd9b/FLAGb7c1c72a7 [2024-11-07 18:51:26,138 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/39b125c6c/d8086e3d8b4c41f4afe9f3fc06f0bd9b [2024-11-07 18:51:26,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 18:51:26,142 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 18:51:26,143 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 18:51:26,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 18:51:26,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 18:51:26,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@772ea1bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26, skipping insertion in model container [2024-11-07 18:51:26,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,181 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 18:51:26,444 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,462 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,465 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,468 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,472 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,492 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,494 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,496 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,500 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,507 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,508 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,509 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,510 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,511 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,511 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,514 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 18:51:26,527 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-07 18:51:26,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 18:51:26,553 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,563 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,564 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,566 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,569 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,581 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,582 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,583 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,585 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,590 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,590 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,591 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,591 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,592 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,592 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,594 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:51:26,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 18:51:26,598 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 18:51:26,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 18:51:26,679 INFO L204 MainTranslator]: Completed translation [2024-11-07 18:51:26,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26 WrapperNode [2024-11-07 18:51:26,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 18:51:26,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 18:51:26,680 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 18:51:26,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 18:51:26,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,763 INFO L138 Inliner]: procedures = 179, calls = 387, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1351 [2024-11-07 18:51:26,763 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 18:51:26,764 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 18:51:26,764 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 18:51:26,764 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 18:51:26,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,777 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,843 INFO L175 MemorySlicer]: Split 357 memory accesses to 2 slices as follows [2, 355]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 90 writes are split as follows [0, 90]. [2024-11-07 18:51:26,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,843 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,888 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,901 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,908 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,922 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 18:51:26,924 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 18:51:26,924 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 18:51:26,924 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 18:51:26,925 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (1/1) ... [2024-11-07 18:51:26,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 18:51:26,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 18:51:26,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 18:51:26,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 18:51:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-07 18:51:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-07 18:51:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-07 18:51:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-07 18:51:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 18:51:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 18:51:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-07 18:51:26,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-07 18:51:26,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-07 18:51:26,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-07 18:51:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 18:51:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 18:51:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 18:51:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 18:51:26,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 18:51:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 18:51:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 18:51:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-07 18:51:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-07 18:51:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-07 18:51:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-07 18:51:26,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 18:51:26,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 18:51:27,160 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 18:51:27,162 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 18:51:27,163 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-07 18:51:27,196 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-07 18:51:30,606 INFO L? ?]: Removed 1547 outVars from TransFormulas that were not future-live. [2024-11-07 18:51:30,608 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 18:51:30,641 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 18:51:30,645 INFO L316 CfgBuilder]: Removed 69 assume(true) statements. [2024-11-07 18:51:30,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:51:30 BoogieIcfgContainer [2024-11-07 18:51:30,646 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 18:51:30,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 18:51:30,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 18:51:30,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 18:51:30,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:51:26" (1/3) ... [2024-11-07 18:51:30,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e16a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:51:30, skipping insertion in model container [2024-11-07 18:51:30,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:51:26" (2/3) ... [2024-11-07 18:51:30,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e16a90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:51:30, skipping insertion in model container [2024-11-07 18:51:30,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:51:30" (3/3) ... [2024-11-07 18:51:30,654 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test4-2.i [2024-11-07 18:51:30,666 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 18:51:30,666 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 733 error locations. [2024-11-07 18:51:30,720 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 18:51:30,733 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;@22f3a00c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 18:51:30,734 INFO L334 AbstractCegarLoop]: Starting to check reachability of 733 error locations. [2024-11-07 18:51:30,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 1451 states, 705 states have (on average 2.2411347517730498) internal successors, (1580), 1442 states have internal predecessors, (1580), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:30,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-07 18:51:30,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:30,743 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 18:51:30,743 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:30,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:30,746 INFO L85 PathProgramCache]: Analyzing trace with hash 45876316, now seen corresponding path program 1 times [2024-11-07 18:51:30,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:30,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081363087] [2024-11-07 18:51:30,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:30,753 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 [2024-11-07 18:51:30,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:30,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:30,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:30,859 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:51:30,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:30,890 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 [2024-11-07 18:51:30,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:30,902 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:30,902 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:30,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2081363087] [2024-11-07 18:51:30,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2081363087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:30,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:30,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 18:51:30,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222568462] [2024-11-07 18:51:30,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:30,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:51:30,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:30,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:51:30,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:51:30,921 INFO L87 Difference]: Start difference. First operand has 1451 states, 705 states have (on average 2.2411347517730498) internal successors, (1580), 1442 states have internal predecessors, (1580), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:32,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:32,414 INFO L93 Difference]: Finished difference Result 1340 states and 1424 transitions. [2024-11-07 18:51:32,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:51:32,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-07 18:51:32,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:32,428 INFO L225 Difference]: With dead ends: 1340 [2024-11-07 18:51:32,428 INFO L226 Difference]: Without dead ends: 1338 [2024-11-07 18:51:32,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:51:32,430 INFO L432 NwaCegarLoop]: 810 mSDtfsCounter, 1042 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:32,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 926 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 852 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-07 18:51:32,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-11-07 18:51:32,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1336. [2024-11-07 18:51:32,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 695 states have (on average 1.9956834532374101) internal successors, (1387), 1327 states have internal predecessors, (1387), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:32,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1419 transitions. [2024-11-07 18:51:32,491 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1419 transitions. Word has length 5 [2024-11-07 18:51:32,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:32,491 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1419 transitions. [2024-11-07 18:51:32,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:32,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1419 transitions. [2024-11-07 18:51:32,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-07 18:51:32,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:32,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 18:51:32,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:32,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:32,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:32,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:32,693 INFO L85 PathProgramCache]: Analyzing trace with hash 45876317, now seen corresponding path program 1 times [2024-11-07 18:51:32,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:32,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1246634373] [2024-11-07 18:51:32,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:32,694 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 [2024-11-07 18:51:32,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:32,696 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:32,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:32,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:32,782 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 18:51:32,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:32,793 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 [2024-11-07 18:51:32,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:32,815 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:32,815 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:32,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1246634373] [2024-11-07 18:51:32,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1246634373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:32,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:32,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 18:51:32,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958530161] [2024-11-07 18:51:32,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:32,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:51:32,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:32,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:51:32,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:51:32,817 INFO L87 Difference]: Start difference. First operand 1336 states and 1419 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:35,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:35,202 INFO L93 Difference]: Finished difference Result 1656 states and 1759 transitions. [2024-11-07 18:51:35,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:51:35,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-07 18:51:35,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:35,209 INFO L225 Difference]: With dead ends: 1656 [2024-11-07 18:51:35,209 INFO L226 Difference]: Without dead ends: 1656 [2024-11-07 18:51:35,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:51:35,210 INFO L432 NwaCegarLoop]: 1174 mSDtfsCounter, 522 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1760 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:35,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1760 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 18:51:35,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-11-07 18:51:35,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1503. [2024-11-07 18:51:35,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1503 states, 872 states have (on average 1.9575688073394495) internal successors, (1707), 1494 states have internal predecessors, (1707), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:35,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1739 transitions. [2024-11-07 18:51:35,246 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1739 transitions. Word has length 5 [2024-11-07 18:51:35,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:35,247 INFO L471 AbstractCegarLoop]: Abstraction has 1503 states and 1739 transitions. [2024-11-07 18:51:35,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:35,247 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1739 transitions. [2024-11-07 18:51:35,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-07 18:51:35,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:35,247 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-07 18:51:35,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:35,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:35,448 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr620REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:35,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:35,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1423825295, now seen corresponding path program 1 times [2024-11-07 18:51:35,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:35,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979779776] [2024-11-07 18:51:35,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:35,451 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 [2024-11-07 18:51:35,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:35,454 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:35,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:35,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 18:51:35,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:35,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:35,568 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:35,568 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:35,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979779776] [2024-11-07 18:51:35,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979779776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:35,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:35,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:51:35,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253256272] [2024-11-07 18:51:35,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:35,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:51:35,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:35,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:51:35,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:51:35,570 INFO L87 Difference]: Start difference. First operand 1503 states and 1739 transitions. Second operand has 3 states, 3 states have (on average 2.0) 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) [2024-11-07 18:51:35,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:35,646 INFO L93 Difference]: Finished difference Result 2755 states and 3196 transitions. [2024-11-07 18:51:35,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:51:35,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) 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 [2024-11-07 18:51:35,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:35,657 INFO L225 Difference]: With dead ends: 2755 [2024-11-07 18:51:35,657 INFO L226 Difference]: Without dead ends: 2755 [2024-11-07 18:51:35,657 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 [2024-11-07 18:51:35,659 INFO L432 NwaCegarLoop]: 1892 mSDtfsCounter, 1114 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1120 SdHoareTripleChecker+Valid, 3296 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:35,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1120 Valid, 3296 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 18:51:35,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2024-11-07 18:51:35,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 1504. [2024-11-07 18:51:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 873 states have (on average 1.956471935853379) internal successors, (1708), 1495 states have internal predecessors, (1708), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:35,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1740 transitions. [2024-11-07 18:51:35,692 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1740 transitions. Word has length 6 [2024-11-07 18:51:35,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:35,692 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 1740 transitions. [2024-11-07 18:51:35,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) 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) [2024-11-07 18:51:35,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1740 transitions. [2024-11-07 18:51:35,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 18:51:35,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:35,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:51:35,698 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:35,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:35,896 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:35,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:35,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1344610650, now seen corresponding path program 1 times [2024-11-07 18:51:35,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:35,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499629900] [2024-11-07 18:51:35,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:35,898 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 [2024-11-07 18:51:35,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:35,900 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:35,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:36,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 18:51:36,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:36,032 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:36,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:36,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499629900] [2024-11-07 18:51:36,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499629900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:36,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:36,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:51:36,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194534844] [2024-11-07 18:51:36,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:36,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:51:36,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:36,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:51:36,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:51:36,033 INFO L87 Difference]: Start difference. First operand 1504 states and 1740 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:36,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:36,081 INFO L93 Difference]: Finished difference Result 1462 states and 1697 transitions. [2024-11-07 18:51:36,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:51:36,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-07 18:51:36,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:36,085 INFO L225 Difference]: With dead ends: 1462 [2024-11-07 18:51:36,085 INFO L226 Difference]: Without dead ends: 1462 [2024-11-07 18:51:36,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:51:36,090 INFO L432 NwaCegarLoop]: 1354 mSDtfsCounter, 71 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 2645 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 [2024-11-07 18:51:36,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 2645 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:51:36,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2024-11-07 18:51:36,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 1462. [2024-11-07 18:51:36,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 855 states have (on average 1.9473684210526316) internal successors, (1665), 1453 states have internal predecessors, (1665), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:36,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1697 transitions. [2024-11-07 18:51:36,114 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1697 transitions. Word has length 11 [2024-11-07 18:51:36,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:36,114 INFO L471 AbstractCegarLoop]: Abstraction has 1462 states and 1697 transitions. [2024-11-07 18:51:36,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:36,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1697 transitions. [2024-11-07 18:51:36,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-07 18:51:36,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:36,115 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:51:36,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:36,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:36,316 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:36,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:36,316 INFO L85 PathProgramCache]: Analyzing trace with hash 614317568, now seen corresponding path program 1 times [2024-11-07 18:51:36,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:36,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [335616472] [2024-11-07 18:51:36,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:36,317 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 [2024-11-07 18:51:36,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:36,322 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:36,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:36,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:51:36,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:36,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:36,538 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:36,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:36,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [335616472] [2024-11-07 18:51:36,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [335616472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:36,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:36,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:51:36,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396899871] [2024-11-07 18:51:36,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:36,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:51:36,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:36,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:51:36,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:51:36,539 INFO L87 Difference]: Start difference. First operand 1462 states and 1697 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:36,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:36,647 INFO L93 Difference]: Finished difference Result 1440 states and 1668 transitions. [2024-11-07 18:51:36,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 18:51:36,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-07 18:51:36,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:36,660 INFO L225 Difference]: With dead ends: 1440 [2024-11-07 18:51:36,661 INFO L226 Difference]: Without dead ends: 1440 [2024-11-07 18:51:36,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:51:36,662 INFO L432 NwaCegarLoop]: 1309 mSDtfsCounter, 48 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 3901 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:36,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 3901 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 18:51:36,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2024-11-07 18:51:36,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1440. [2024-11-07 18:51:36,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1440 states, 847 states have (on average 1.9315230224321134) internal successors, (1636), 1431 states have internal predecessors, (1636), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 1668 transitions. [2024-11-07 18:51:36,686 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 1668 transitions. Word has length 13 [2024-11-07 18:51:36,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:36,687 INFO L471 AbstractCegarLoop]: Abstraction has 1440 states and 1668 transitions. [2024-11-07 18:51:36,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:36,687 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 1668 transitions. [2024-11-07 18:51:36,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-07 18:51:36,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:36,688 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:51:36,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:36,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:36,891 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:36,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:36,892 INFO L85 PathProgramCache]: Analyzing trace with hash -957630610, now seen corresponding path program 1 times [2024-11-07 18:51:36,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:36,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1510769865] [2024-11-07 18:51:36,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:36,892 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 [2024-11-07 18:51:36,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:36,894 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:36,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:37,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:37,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 18:51:37,019 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:37,024 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 [2024-11-07 18:51:37,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:37,094 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:37,094 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:37,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1510769865] [2024-11-07 18:51:37,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1510769865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:37,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:37,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:51:37,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127582619] [2024-11-07 18:51:37,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:37,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:51:37,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:37,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:51:37,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:51:37,095 INFO L87 Difference]: Start difference. First operand 1440 states and 1668 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:38,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:38,852 INFO L93 Difference]: Finished difference Result 1440 states and 1668 transitions. [2024-11-07 18:51:38,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:51:38,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-07 18:51:38,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:38,857 INFO L225 Difference]: With dead ends: 1440 [2024-11-07 18:51:38,857 INFO L226 Difference]: Without dead ends: 1440 [2024-11-07 18:51:38,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:51:38,857 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 979 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 1500 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:38,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [995 Valid, 1462 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1500 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-07 18:51:38,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2024-11-07 18:51:38,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 1436. [2024-11-07 18:51:38,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1436 states, 847 states have (on average 1.9268004722550176) internal successors, (1632), 1427 states have internal predecessors, (1632), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:38,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1664 transitions. [2024-11-07 18:51:38,871 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1664 transitions. Word has length 27 [2024-11-07 18:51:38,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:38,872 INFO L471 AbstractCegarLoop]: Abstraction has 1436 states and 1664 transitions. [2024-11-07 18:51:38,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1664 transitions. [2024-11-07 18:51:38,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-07 18:51:38,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:38,872 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:51:38,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-07 18:51:39,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:39,073 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:39,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:39,074 INFO L85 PathProgramCache]: Analyzing trace with hash -957630609, now seen corresponding path program 1 times [2024-11-07 18:51:39,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:39,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1618378624] [2024-11-07 18:51:39,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:39,074 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 [2024-11-07 18:51:39,074 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:39,076 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:39,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:39,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 18:51:39,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:39,221 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 [2024-11-07 18:51:39,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:39,317 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:39,317 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:39,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1618378624] [2024-11-07 18:51:39,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1618378624] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:39,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:39,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:51:39,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492497743] [2024-11-07 18:51:39,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:39,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:51:39,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:39,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:51:39,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:51:39,318 INFO L87 Difference]: Start difference. First operand 1436 states and 1664 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:41,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:41,476 INFO L93 Difference]: Finished difference Result 1589 states and 1684 transitions. [2024-11-07 18:51:41,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:51:41,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2024-11-07 18:51:41,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:41,481 INFO L225 Difference]: With dead ends: 1589 [2024-11-07 18:51:41,482 INFO L226 Difference]: Without dead ends: 1589 [2024-11-07 18:51:41,482 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:51:41,483 INFO L432 NwaCegarLoop]: 1128 mSDtfsCounter, 455 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 1499 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 2345 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:41,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 2345 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1499 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 18:51:41,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1589 states. [2024-11-07 18:51:41,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1589 to 1432. [2024-11-07 18:51:41,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 847 states have (on average 1.922077922077922) internal successors, (1628), 1423 states have internal predecessors, (1628), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:41,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1660 transitions. [2024-11-07 18:51:41,518 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1660 transitions. Word has length 27 [2024-11-07 18:51:41,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:41,519 INFO L471 AbstractCegarLoop]: Abstraction has 1432 states and 1660 transitions. [2024-11-07 18:51:41,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:41,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1660 transitions. [2024-11-07 18:51:41,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-07 18:51:41,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:41,519 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] [2024-11-07 18:51:41,523 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:41,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:41,722 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:41,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:41,726 INFO L85 PathProgramCache]: Analyzing trace with hash -3860248, now seen corresponding path program 1 times [2024-11-07 18:51:41,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:41,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2141637412] [2024-11-07 18:51:41,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:41,727 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 [2024-11-07 18:51:41,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:41,729 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:41,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:41,873 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:51:41,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:41,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:41,908 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:41,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:41,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2141637412] [2024-11-07 18:51:41,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2141637412] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:41,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:41,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:51:41,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662295969] [2024-11-07 18:51:41,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:41,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:51:41,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:41,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:51:41,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:51:41,910 INFO L87 Difference]: Start difference. First operand 1432 states and 1660 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-07 18:51:41,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:41,953 INFO L93 Difference]: Finished difference Result 1426 states and 1650 transitions. [2024-11-07 18:51:41,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 18:51:41,953 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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 43 [2024-11-07 18:51:41,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:41,956 INFO L225 Difference]: With dead ends: 1426 [2024-11-07 18:51:41,956 INFO L226 Difference]: Without dead ends: 1426 [2024-11-07 18:51:41,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:51:41,958 INFO L432 NwaCegarLoop]: 1303 mSDtfsCounter, 21 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3878 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 [2024-11-07 18:51:41,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3878 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:51:41,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2024-11-07 18:51:41,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1426. [2024-11-07 18:51:41,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 841 states have (on average 1.9239001189060643) internal successors, (1618), 1417 states have internal predecessors, (1618), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:41,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 1650 transitions. [2024-11-07 18:51:41,975 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 1650 transitions. Word has length 43 [2024-11-07 18:51:41,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:41,975 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 1650 transitions. [2024-11-07 18:51:41,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 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) [2024-11-07 18:51:41,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 1650 transitions. [2024-11-07 18:51:41,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-07 18:51:41,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:41,977 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] [2024-11-07 18:51:41,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:42,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:42,178 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:42,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:42,178 INFO L85 PathProgramCache]: Analyzing trace with hash 168131124, now seen corresponding path program 1 times [2024-11-07 18:51:42,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:42,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572475433] [2024-11-07 18:51:42,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:42,179 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 [2024-11-07 18:51:42,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:42,181 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:42,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:42,364 INFO L255 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:51:42,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:42,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:42,709 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:42,709 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:42,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572475433] [2024-11-07 18:51:42,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572475433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:42,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:42,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:51:42,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002700595] [2024-11-07 18:51:42,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:42,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:51:42,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:42,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:51:42,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:51:42,710 INFO L87 Difference]: Start difference. First operand 1426 states and 1650 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-07 18:51:42,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:42,986 INFO L93 Difference]: Finished difference Result 1644 states and 1897 transitions. [2024-11-07 18:51:42,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:51:42,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2024-11-07 18:51:42,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:42,991 INFO L225 Difference]: With dead ends: 1644 [2024-11-07 18:51:42,992 INFO L226 Difference]: Without dead ends: 1644 [2024-11-07 18:51:42,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:51:42,993 INFO L432 NwaCegarLoop]: 1390 mSDtfsCounter, 178 mSDsluCounter, 1253 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:42,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 2643 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 18:51:42,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2024-11-07 18:51:43,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1473. [2024-11-07 18:51:43,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 888 states have (on average 1.875) internal successors, (1665), 1464 states have internal predecessors, (1665), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:43,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 1697 transitions. [2024-11-07 18:51:43,009 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 1697 transitions. Word has length 51 [2024-11-07 18:51:43,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:43,010 INFO L471 AbstractCegarLoop]: Abstraction has 1473 states and 1697 transitions. [2024-11-07 18:51:43,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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) [2024-11-07 18:51:43,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 1697 transitions. [2024-11-07 18:51:43,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-07 18:51:43,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:43,011 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:51:43,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-07 18:51:43,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:43,212 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:43,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:43,214 INFO L85 PathProgramCache]: Analyzing trace with hash 754975115, now seen corresponding path program 1 times [2024-11-07 18:51:43,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:43,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003623277] [2024-11-07 18:51:43,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:43,215 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 [2024-11-07 18:51:43,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:43,217 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:43,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:43,462 INFO L255 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 18:51:43,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:43,475 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 [2024-11-07 18:51:43,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-07 18:51:43,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 18:51:43,851 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 [2024-11-07 18:51:43,864 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-07 18:51:43,864 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 [2024-11-07 18:51:43,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:43,877 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:43,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:43,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003623277] [2024-11-07 18:51:43,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003623277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:43,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:43,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:51:43,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932306858] [2024-11-07 18:51:43,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:43,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:51:43,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:43,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:51:43,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:51:43,878 INFO L87 Difference]: Start difference. First operand 1473 states and 1697 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:45,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:45,820 INFO L93 Difference]: Finished difference Result 1389 states and 1613 transitions. [2024-11-07 18:51:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:51:45,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-07 18:51:45,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:45,824 INFO L225 Difference]: With dead ends: 1389 [2024-11-07 18:51:45,824 INFO L226 Difference]: Without dead ends: 1389 [2024-11-07 18:51:45,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:51:45,824 INFO L432 NwaCegarLoop]: 571 mSDtfsCounter, 1764 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 731 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:45,824 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 731 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 18:51:45,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1389 states. [2024-11-07 18:51:45,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1389 to 1212. [2024-11-07 18:51:45,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 711 states have (on average 1.759493670886076) internal successors, (1251), 1203 states have internal predecessors, (1251), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:45,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1283 transitions. [2024-11-07 18:51:45,836 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1283 transitions. Word has length 54 [2024-11-07 18:51:45,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:45,836 INFO L471 AbstractCegarLoop]: Abstraction has 1212 states and 1283 transitions. [2024-11-07 18:51:45,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:51:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1283 transitions. [2024-11-07 18:51:45,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-07 18:51:45,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:45,837 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] [2024-11-07 18:51:45,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-07 18:51:46,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:46,037 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:46,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:46,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1572100217, now seen corresponding path program 1 times [2024-11-07 18:51:46,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:46,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146082834] [2024-11-07 18:51:46,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:46,038 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 [2024-11-07 18:51:46,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:46,040 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:46,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:46,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 18:51:46,291 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:46,295 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 [2024-11-07 18:51:46,304 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 [2024-11-07 18:51:46,319 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 [2024-11-07 18:51:46,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:46,327 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:46,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:46,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146082834] [2024-11-07 18:51:46,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146082834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:46,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:46,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:51:46,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417477699] [2024-11-07 18:51:46,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:46,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 18:51:46,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:46,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 18:51:46,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:51:46,328 INFO L87 Difference]: Start difference. First operand 1212 states and 1283 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-07 18:51:48,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:48,241 INFO L93 Difference]: Finished difference Result 1211 states and 1282 transitions. [2024-11-07 18:51:48,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 18:51:48,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2024-11-07 18:51:48,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:48,245 INFO L225 Difference]: With dead ends: 1211 [2024-11-07 18:51:48,245 INFO L226 Difference]: Without dead ends: 1211 [2024-11-07 18:51:48,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 18:51:48,246 INFO L432 NwaCegarLoop]: 1230 mSDtfsCounter, 2 mSDsluCounter, 1915 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3145 SdHoareTripleChecker+Invalid, 1783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:48,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3145 Invalid, 1783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 18:51:48,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1211 states. [2024-11-07 18:51:48,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1211 to 1211. [2024-11-07 18:51:48,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1211 states, 711 states have (on average 1.7580872011251758) internal successors, (1250), 1202 states have internal predecessors, (1250), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:48,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1211 states to 1211 states and 1282 transitions. [2024-11-07 18:51:48,257 INFO L78 Accepts]: Start accepts. Automaton has 1211 states and 1282 transitions. Word has length 59 [2024-11-07 18:51:48,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:48,258 INFO L471 AbstractCegarLoop]: Abstraction has 1211 states and 1282 transitions. [2024-11-07 18:51:48,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-07 18:51:48,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1211 states and 1282 transitions. [2024-11-07 18:51:48,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-07 18:51:48,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:48,260 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] [2024-11-07 18:51:48,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2024-11-07 18:51:48,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:48,464 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:48,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:48,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1572100216, now seen corresponding path program 1 times [2024-11-07 18:51:48,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:48,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800264445] [2024-11-07 18:51:48,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:48,465 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 [2024-11-07 18:51:48,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:48,467 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:48,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:48,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 18:51:48,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:48,685 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 [2024-11-07 18:51:48,708 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 [2024-11-07 18:51:48,715 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 [2024-11-07 18:51:48,785 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 [2024-11-07 18:51:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:48,809 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:48,809 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:48,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800264445] [2024-11-07 18:51:48,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800264445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:48,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:48,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:51:48,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454354184] [2024-11-07 18:51:48,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:48,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 18:51:48,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:48,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 18:51:48,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:51:48,810 INFO L87 Difference]: Start difference. First operand 1211 states and 1282 transitions. Second operand has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-07 18:51:51,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:51,657 INFO L93 Difference]: Finished difference Result 1210 states and 1281 transitions. [2024-11-07 18:51:51,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 18:51:51,658 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2024-11-07 18:51:51,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:51,661 INFO L225 Difference]: With dead ends: 1210 [2024-11-07 18:51:51,662 INFO L226 Difference]: Without dead ends: 1210 [2024-11-07 18:51:51,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-07 18:51:51,662 INFO L432 NwaCegarLoop]: 1230 mSDtfsCounter, 1 mSDsluCounter, 1946 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3176 SdHoareTripleChecker+Invalid, 1749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:51,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3176 Invalid, 1749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-07 18:51:51,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2024-11-07 18:51:51,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1210. [2024-11-07 18:51:51,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 710 states have (on average 1.7591549295774649) internal successors, (1249), 1201 states have internal predecessors, (1249), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:51:51,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1281 transitions. [2024-11-07 18:51:51,684 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1281 transitions. Word has length 59 [2024-11-07 18:51:51,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:51,684 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 1281 transitions. [2024-11-07 18:51:51,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.75) internal successors, (59), 5 states have internal predecessors, (59), 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) [2024-11-07 18:51:51,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1281 transitions. [2024-11-07 18:51:51,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-07 18:51:51,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:51,686 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] [2024-11-07 18:51:51,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2024-11-07 18:51:51,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:51,886 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:51,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:51,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1878357490, now seen corresponding path program 1 times [2024-11-07 18:51:51,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:51,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064813802] [2024-11-07 18:51:51,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:51,887 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 [2024-11-07 18:51:51,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:51,889 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:51,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:52,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:51:52,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:52,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:52,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:51:52,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:52,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064813802] [2024-11-07 18:51:52,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064813802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:51:52,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:51:52,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:51:52,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606073881] [2024-11-07 18:51:52,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:51:52,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:51:52,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:52,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:51:52,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:51:52,163 INFO L87 Difference]: Start difference. First operand 1210 states and 1281 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-07 18:51:52,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:52,210 INFO L93 Difference]: Finished difference Result 1213 states and 1286 transitions. [2024-11-07 18:51:52,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:51:52,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 67 [2024-11-07 18:51:52,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:52,216 INFO L225 Difference]: With dead ends: 1213 [2024-11-07 18:51:52,216 INFO L226 Difference]: Without dead ends: 1213 [2024-11-07 18:51:52,216 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:51:52,217 INFO L432 NwaCegarLoop]: 1229 mSDtfsCounter, 0 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3679 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 [2024-11-07 18:51:52,217 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3679 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:51:52,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2024-11-07 18:51:52,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1213. [2024-11-07 18:51:52,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 712 states have (on average 1.7584269662921348) internal successors, (1252), 1204 states have internal predecessors, (1252), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-07 18:51:52,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1286 transitions. [2024-11-07 18:51:52,244 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1286 transitions. Word has length 67 [2024-11-07 18:51:52,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:52,244 INFO L471 AbstractCegarLoop]: Abstraction has 1213 states and 1286 transitions. [2024-11-07 18:51:52,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2024-11-07 18:51:52,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1286 transitions. [2024-11-07 18:51:52,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-07 18:51:52,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:52,245 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] [2024-11-07 18:51:52,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:52,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:52,446 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 730 more)] === [2024-11-07 18:51:52,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:52,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1847933811, now seen corresponding path program 1 times [2024-11-07 18:51:52,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:52,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [648347145] [2024-11-07 18:51:52,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:51:52,447 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 [2024-11-07 18:51:52,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:52,449 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:52,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:51:52,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 18:51:52,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:52,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:52,672 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:51:52,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:52,719 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:52,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [648347145] [2024-11-07 18:51:52,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [648347145] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 18:51:52,719 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 18:51:52,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-07 18:51:52,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144653825] [2024-11-07 18:51:52,720 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 18:51:52,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 18:51:52,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:52,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 18:51:52,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 18:51:52,724 INFO L87 Difference]: Start difference. First operand 1213 states and 1286 transitions. Second operand has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2024-11-07 18:51:52,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:52,834 INFO L93 Difference]: Finished difference Result 1225 states and 1304 transitions. [2024-11-07 18:51:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 18:51:52,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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 68 [2024-11-07 18:51:52,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:52,838 INFO L225 Difference]: With dead ends: 1225 [2024-11-07 18:51:52,838 INFO L226 Difference]: Without dead ends: 1225 [2024-11-07 18:51:52,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-07 18:51:52,839 INFO L432 NwaCegarLoop]: 1228 mSDtfsCounter, 8 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3679 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:52,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3679 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 18:51:52,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2024-11-07 18:51:52,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1223. [2024-11-07 18:51:52,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1223 states, 721 states have (on average 1.7572815533980584) internal successors, (1267), 1213 states have internal predecessors, (1267), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-07 18:51:52,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1223 states to 1223 states and 1301 transitions. [2024-11-07 18:51:52,868 INFO L78 Accepts]: Start accepts. Automaton has 1223 states and 1301 transitions. Word has length 68 [2024-11-07 18:51:52,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:52,868 INFO L471 AbstractCegarLoop]: Abstraction has 1223 states and 1301 transitions. [2024-11-07 18:51:52,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.75) internal successors, (70), 8 states have internal predecessors, (70), 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) [2024-11-07 18:51:52,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1223 states and 1301 transitions. [2024-11-07 18:51:52,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-07 18:51:52,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:52,869 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] [2024-11-07 18:51:52,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:53,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:53,070 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)] === [2024-11-07 18:51:53,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:53,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1618693682, now seen corresponding path program 2 times [2024-11-07 18:51:53,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:53,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471364356] [2024-11-07 18:51:53,071 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 18:51:53,071 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 [2024-11-07 18:51:53,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:53,074 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:53,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:53,469 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 18:51:53,469 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 18:51:53,481 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 18:51:53,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:53,533 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:53,533 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:51:53,673 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:53,677 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:53,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471364356] [2024-11-07 18:51:53,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [471364356] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 18:51:53,677 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 18:51:53,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-07 18:51:53,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681549118] [2024-11-07 18:51:53,677 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 18:51:53,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 18:51:53,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:53,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 18:51:53,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-07 18:51:53,678 INFO L87 Difference]: Start difference. First operand 1223 states and 1301 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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) [2024-11-07 18:51:54,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:54,158 INFO L93 Difference]: Finished difference Result 1238 states and 1322 transitions. [2024-11-07 18:51:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 18:51:54,158 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 71 [2024-11-07 18:51:54,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:54,163 INFO L225 Difference]: With dead ends: 1238 [2024-11-07 18:51:54,163 INFO L226 Difference]: Without dead ends: 1232 [2024-11-07 18:51:54,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-07 18:51:54,165 INFO L432 NwaCegarLoop]: 1229 mSDtfsCounter, 14 mSDsluCounter, 9785 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 11014 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:54,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 11014 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 18:51:54,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-11-07 18:51:54,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1232. [2024-11-07 18:51:54,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 730 states have (on average 1.7506849315068493) internal successors, (1278), 1222 states have internal predecessors, (1278), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-07 18:51:54,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 1312 transitions. [2024-11-07 18:51:54,182 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 1312 transitions. Word has length 71 [2024-11-07 18:51:54,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:54,183 INFO L471 AbstractCegarLoop]: Abstraction has 1232 states and 1312 transitions. [2024-11-07 18:51:54,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 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) [2024-11-07 18:51:54,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 1312 transitions. [2024-11-07 18:51:54,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 18:51:54,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:54,185 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] [2024-11-07 18:51:54,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:54,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:54,386 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)] === [2024-11-07 18:51:54,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:54,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1353815698, now seen corresponding path program 3 times [2024-11-07 18:51:54,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:54,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744133445] [2024-11-07 18:51:54,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 18:51:54,387 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 [2024-11-07 18:51:54,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:54,390 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:54,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:54,861 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-07 18:51:54,862 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 18:51:54,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 18:51:54,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:54,969 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:51:55,350 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:55,350 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:55,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744133445] [2024-11-07 18:51:55,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744133445] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 18:51:55,351 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 18:51:55,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-07 18:51:55,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825965972] [2024-11-07 18:51:55,351 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 18:51:55,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-07 18:51:55,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:55,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-07 18:51:55,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-07 18:51:55,352 INFO L87 Difference]: Start difference. First operand 1232 states and 1312 transitions. Second operand has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 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) [2024-11-07 18:51:56,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:51:56,650 INFO L93 Difference]: Finished difference Result 1256 states and 1351 transitions. [2024-11-07 18:51:56,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-07 18:51:56,651 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 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 77 [2024-11-07 18:51:56,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:51:56,657 INFO L225 Difference]: With dead ends: 1256 [2024-11-07 18:51:56,657 INFO L226 Difference]: Without dead ends: 1250 [2024-11-07 18:51:56,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-07 18:51:56,659 INFO L432 NwaCegarLoop]: 1229 mSDtfsCounter, 19 mSDsluCounter, 18358 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 19587 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 18:51:56,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 19587 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 18:51:56,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-07 18:51:56,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2024-11-07 18:51:56,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 748 states have (on average 1.7393048128342246) internal successors, (1301), 1240 states have internal predecessors, (1301), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-07 18:51:56,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1335 transitions. [2024-11-07 18:51:56,684 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1335 transitions. Word has length 77 [2024-11-07 18:51:56,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:51:56,684 INFO L471 AbstractCegarLoop]: Abstraction has 1250 states and 1335 transitions. [2024-11-07 18:51:56,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.3846153846153846) internal successors, (88), 26 states have internal predecessors, (88), 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) [2024-11-07 18:51:56,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1335 transitions. [2024-11-07 18:51:56,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-07 18:51:56,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:51:56,690 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] [2024-11-07 18:51:56,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:56,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:51:56,891 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)] === [2024-11-07 18:51:56,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:51:56,892 INFO L85 PathProgramCache]: Analyzing trace with hash 241905838, now seen corresponding path program 4 times [2024-11-07 18:51:56,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:51:56,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [566544828] [2024-11-07 18:51:56,892 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 18:51:56,893 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 [2024-11-07 18:51:56,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:51:56,896 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:51:56,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:51:57,283 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 18:51:57,283 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 18:51:57,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-07 18:51:57,298 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:51:57,594 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:57,594 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:51:58,607 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:51:58,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:51:58,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [566544828] [2024-11-07 18:51:58,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [566544828] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 18:51:58,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 18:51:58,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-07 18:51:58,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513229003] [2024-11-07 18:51:58,609 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 18:51:58,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-07 18:51:58,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:51:58,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-07 18:51:58,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-07 18:51:58,611 INFO L87 Difference]: Start difference. First operand 1250 states and 1335 transitions. Second operand has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 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) [2024-11-07 18:52:02,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:52:02,985 INFO L93 Difference]: Finished difference Result 1290 states and 1408 transitions. [2024-11-07 18:52:02,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-07 18:52:02,989 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 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 89 [2024-11-07 18:52:02,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:52:02,992 INFO L225 Difference]: With dead ends: 1290 [2024-11-07 18:52:02,993 INFO L226 Difference]: Without dead ends: 1286 [2024-11-07 18:52:02,994 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-07 18:52:02,994 INFO L432 NwaCegarLoop]: 1228 mSDtfsCounter, 33 mSDsluCounter, 34260 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 35488 SdHoareTripleChecker+Invalid, 2061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-07 18:52:02,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 35488 Invalid, 2061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-07 18:52:02,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2024-11-07 18:52:03,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1284. [2024-11-07 18:52:03,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 782 states have (on average 1.7225063938618925) internal successors, (1347), 1274 states have internal predecessors, (1347), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2024-11-07 18:52:03,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1381 transitions. [2024-11-07 18:52:03,007 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1381 transitions. Word has length 89 [2024-11-07 18:52:03,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:52:03,007 INFO L471 AbstractCegarLoop]: Abstraction has 1284 states and 1381 transitions. [2024-11-07 18:52:03,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.24) internal successors, (112), 50 states have internal predecessors, (112), 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) [2024-11-07 18:52:03,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1381 transitions. [2024-11-07 18:52:03,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-07 18:52:03,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:52:03,008 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] [2024-11-07 18:52:03,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:52:03,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:52:03,212 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)] === [2024-11-07 18:52:03,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:52:03,213 INFO L85 PathProgramCache]: Analyzing trace with hash 220929870, now seen corresponding path program 5 times [2024-11-07 18:52:03,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:52:03,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818878180] [2024-11-07 18:52:03,213 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 18:52:03,213 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 [2024-11-07 18:52:03,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:52:03,215 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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) [2024-11-07 18:52:03,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -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 [2024-11-07 18:52:04,270 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-07 18:52:04,270 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 18:52:04,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-07 18:52:04,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:52:04,316 INFO L349 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2024-11-07 18:52:04,317 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 [2024-11-07 18:52:04,596 INFO L349 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size [2024-11-07 18:52:04,596 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 [2024-11-07 18:52:04,640 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 [2024-11-07 18:52:04,745 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 [2024-11-07 18:52:06,451 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-07 18:52:06,452 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 [2024-11-07 18:52:06,534 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 [2024-11-07 18:52:06,583 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2024-11-07 18:52:06,584 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:52:06,911 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1646 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#1.base| |c_ULTIMATE.start_main_#t~mem32#1.base| v_ArrVal_1646) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|)))))) is different from false [2024-11-07 18:52:06,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:52:06,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818878180] [2024-11-07 18:52:06,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818878180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 18:52:06,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [324098823] [2024-11-07 18:52:06,914 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 18:52:06,914 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-07 18:52:06,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-07 18:52:06,917 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-07 18:52:06,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process