./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.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_OAT_test10-2.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', '14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735'] 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_OAT_test10-2.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 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 18:54:12,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 18:54:12,435 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 18:54:12,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 18:54:12,439 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 18:54:12,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 18:54:12,457 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 18:54:12,458 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 18:54:12,458 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 18:54:12,458 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 18:54:12,458 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 18:54:12,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 18:54:12,458 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 18:54:12,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 18:54:12,458 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 18:54:12,458 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 18:54:12,458 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 18:54:12,458 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 18:54:12,459 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 18:54:12,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 18:54:12,459 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 18:54:12,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 18:54:12,460 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 18:54:12,460 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 18:54:12,460 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 18:54:12,460 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 18:54:12,460 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 -> 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735 [2024-11-07 18:54:12,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 18:54:12,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 18:54:12,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 18:54:12,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 18:54:12,674 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 18:54:12,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i [2024-11-07 18:54:13,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 18:54:14,026 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 18:54:14,028 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i [2024-11-07 18:54:14,044 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6fcb4055e/728ec565d9f348a1833c18e29ef00b72/FLAG863201f48 [2024-11-07 18:54:14,335 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6fcb4055e/728ec565d9f348a1833c18e29ef00b72 [2024-11-07 18:54:14,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 18:54:14,337 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 18:54:14,339 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 18:54:14,339 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 18:54:14,342 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 18:54:14,342 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:54:14" (1/1) ... [2024-11-07 18:54:14,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fce2e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:14, skipping insertion in model container [2024-11-07 18:54:14,343 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:54:14" (1/1) ... [2024-11-07 18:54:14,378 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 18:54:14,612 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:54:14,631 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 18:54:14,634 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:54:14,636 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 18:54:14,640 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 18:54:14,667 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:54:14,669 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 18:54:14,674 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 18:54:14,679 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 18:54:14,704 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 18:54:14,708 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 18:54:14,710 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 18:54:14,710 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 18:54:14,723 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:54:14,724 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 18:54:14,725 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:54:14,725 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:54:14,733 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 18:54:14,733 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 18:54:14,734 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 18:54:14,734 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 18:54:14,743 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 18:54:14,743 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 18:54:14,745 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 18:54:14,745 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 18:54:14,746 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 18:54:14,747 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:54:14,747 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:54:14,748 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 18:54:14,748 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 18:54:14,750 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 18:54:14,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 18:54:14,770 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 18:54:14,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@b105778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:14, skipping insertion in model container [2024-11-07 18:54:14,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 18:54:14,771 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-07 18:54:14,773 INFO L158 Benchmark]: Toolchain (without parser) took 434.91ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 84.6MB in the end (delta: 28.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-07 18:54:14,774 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 18:54:14,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.37ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 84.6MB in the end (delta: 28.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-07 18:54:14,774 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 117.4MB. Free memory is still 81.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.37ms. Allocated memory is still 142.6MB. Free memory was 113.5MB in the beginning and 84.6MB in the end (delta: 28.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 757]: 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_OAT_test10-2.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 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 18:54:16,250 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 18:54:16,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-07 18:54:16,332 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 18:54:16,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 18:54:16,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 18:54:16,346 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 18:54:16,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 18:54:16,346 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 18:54:16,346 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 18:54:16,346 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 18:54:16,346 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 18:54:16,346 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 18:54:16,347 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 18:54:16,347 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 18:54:16,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 18:54:16,347 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 18:54:16,347 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 18:54:16,347 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 18:54:16,347 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 18:54:16,347 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 18:54:16,347 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 18:54:16,347 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 18:54:16,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 18:54:16,348 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 18:54:16,348 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 18:54:16,348 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 18:54:16,348 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 18:54:16,348 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 18:54:16,348 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 18:54:16,348 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 18:54:16,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 18:54:16,348 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 18:54:16,348 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 18:54:16,348 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 18:54:16,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 18:54:16,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 18:54:16,349 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 18:54:16,349 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 18:54:16,349 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 18:54:16,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 18:54:16,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 18:54:16,349 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 18:54:16,349 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 18:54:16,350 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 -> 14558cb0aef5bf60b4a230892060936885d87372f6515d5d8ad78f7b805ad735 [2024-11-07 18:54:16,548 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 18:54:16,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 18:54:16,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 18:54:16,557 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 18:54:16,557 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 18:54:16,558 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i [2024-11-07 18:54:17,721 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 18:54:17,995 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 18:54:17,995 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test10-2.i [2024-11-07 18:54:18,016 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f36083b91/e6b0863cb35f459981d7e49f0b7febf2/FLAGa53fbce59 [2024-11-07 18:54:18,030 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f36083b91/e6b0863cb35f459981d7e49f0b7febf2 [2024-11-07 18:54:18,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 18:54:18,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 18:54:18,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 18:54:18,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 18:54:18,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 18:54:18,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:18,043 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb476a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18, skipping insertion in model container [2024-11-07 18:54:18,043 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:18,077 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 18:54:18,341 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 18:54:18,359 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 18:54:18,362 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 18:54:18,367 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 18:54:18,371 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 18:54:18,398 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 18:54:18,400 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 18:54:18,402 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 18:54:18,405 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 18:54:18,426 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 18:54:18,426 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 18:54:18,428 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 18:54:18,428 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 18:54:18,436 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 18:54:18,436 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 18:54:18,438 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 18:54:18,438 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 18:54:18,446 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 18:54:18,446 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 18:54:18,447 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 18:54:18,447 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 18:54:18,455 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 18:54:18,455 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 18:54:18,458 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 18:54:18,458 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 18:54:18,459 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 18:54:18,461 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 18:54:18,464 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 18:54:18,464 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 18:54:18,465 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 18:54:18,468 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 18:54:18,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 18:54:18,492 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2024-11-07 18:54:18,502 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 18:54:18,533 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 18:54:18,548 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 18:54:18,549 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 18:54:18,552 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 18:54:18,569 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 18:54:18,581 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 18:54:18,583 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 18:54:18,584 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 18:54:18,588 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 18:54:18,600 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 18:54:18,603 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 18:54:18,604 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 18:54:18,604 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 18:54:18,609 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 18:54:18,611 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 18:54:18,613 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 18:54:18,614 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 18:54:18,619 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 18:54:18,619 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 18:54:18,620 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 18:54:18,620 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 18:54:18,628 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 18:54:18,628 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 18:54:18,629 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 18:54:18,630 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 18:54:18,630 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 18:54:18,631 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 18:54:18,632 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 18:54:18,632 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 18:54:18,633 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 18:54:18,635 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 18:54:18,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 18:54:18,643 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 18:54:18,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 18:54:18,776 INFO L204 MainTranslator]: Completed translation [2024-11-07 18:54:18,777 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18 WrapperNode [2024-11-07 18:54:18,777 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 18:54:18,778 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 18:54:18,778 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 18:54:18,778 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 18:54:18,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:18,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:18,899 INFO L138 Inliner]: procedures = 180, calls = 558, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2439 [2024-11-07 18:54:18,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 18:54:18,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 18:54:18,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 18:54:18,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 18:54:18,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:18,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:18,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:19,028 INFO L175 MemorySlicer]: Split 528 memory accesses to 3 slices as follows [2, 106, 420]. 80 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 94 writes are split as follows [0, 4, 90]. [2024-11-07 18:54:19,028 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:19,028 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:19,088 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:19,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:19,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:19,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:19,129 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 18:54:19,130 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 18:54:19,130 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 18:54:19,130 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 18:54:19,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (1/1) ... [2024-11-07 18:54:19,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 18:54:19,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 18:54:19,156 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 18:54:19,161 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 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure test_int_int [2024-11-07 18:54:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int_int [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-07 18:54:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-07 18:54:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-07 18:54:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-07 18:54:19,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-07 18:54:19,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-07 18:54:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-07 18:54:19,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 18:54:19,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 18:54:19,367 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 18:54:19,387 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 18:54:19,427 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-07 18:54:19,455 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-07 18:54:19,471 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-07 18:54:24,394 INFO L? ?]: Removed 2232 outVars from TransFormulas that were not future-live. [2024-11-07 18:54:24,394 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 18:54:24,430 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 18:54:24,430 INFO L316 CfgBuilder]: Removed 160 assume(true) statements. [2024-11-07 18:54:24,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:54:24 BoogieIcfgContainer [2024-11-07 18:54:24,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 18:54:24,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 18:54:24,432 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 18:54:24,436 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 18:54:24,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:54:18" (1/3) ... [2024-11-07 18:54:24,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e3501e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:54:24, skipping insertion in model container [2024-11-07 18:54:24,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:54:18" (2/3) ... [2024-11-07 18:54:24,437 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e3501e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:54:24, skipping insertion in model container [2024-11-07 18:54:24,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:54:24" (3/3) ... [2024-11-07 18:54:24,438 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test10-2.i [2024-11-07 18:54:24,448 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 18:54:24,448 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1091 error locations. [2024-11-07 18:54:24,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 18:54:24,508 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;@129c1358, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 18:54:24,508 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1091 error locations. [2024-11-07 18:54:24,514 INFO L276 IsEmpty]: Start isEmpty. Operand has 2277 states, 1174 states have (on average 2.1873935264054514) internal successors, (2568), 2263 states have internal predecessors, (2568), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-07 18:54:24,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-07 18:54:24,517 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:24,517 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-07 18:54:24,518 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:24,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:24,522 INFO L85 PathProgramCache]: Analyzing trace with hash 84472, now seen corresponding path program 1 times [2024-11-07 18:54:24,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:24,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1227517987] [2024-11-07 18:54:24,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:24,529 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 18:54:24,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:24,531 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 18:54:24,532 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 18:54:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:24,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:54:24,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:24,719 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 18:54:24,736 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 18:54:24,736 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:24,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:24,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1227517987] [2024-11-07 18:54:24,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1227517987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:24,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:24,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 18:54:24,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762265452] [2024-11-07 18:54:24,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:24,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:54:24,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:24,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:54:24,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:24,758 INFO L87 Difference]: Start difference. First operand has 2277 states, 1174 states have (on average 2.1873935264054514) internal successors, (2568), 2263 states have internal predecessors, (2568), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:27,076 INFO L93 Difference]: Finished difference Result 2941 states and 3125 transitions. [2024-11-07 18:54:27,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:54:27,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-07 18:54:27,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:27,092 INFO L225 Difference]: With dead ends: 2941 [2024-11-07 18:54:27,092 INFO L226 Difference]: Without dead ends: 2939 [2024-11-07 18:54:27,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:27,095 INFO L432 NwaCegarLoop]: 1401 mSDtfsCounter, 2142 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2152 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:27,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2152 Valid, 1880 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 18:54:27,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2939 states. [2024-11-07 18:54:27,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2939 to 2421. [2024-11-07 18:54:27,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 1346 states have (on average 2.0222882615156017) internal successors, (2722), 2405 states have internal predecessors, (2722), 16 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-07 18:54:27,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 2754 transitions. [2024-11-07 18:54:27,183 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 2754 transitions. Word has length 3 [2024-11-07 18:54:27,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:27,184 INFO L471 AbstractCegarLoop]: Abstraction has 2421 states and 2754 transitions. [2024-11-07 18:54:27,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:27,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 2754 transitions. [2024-11-07 18:54:27,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-07 18:54:27,184 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:27,184 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-07 18:54:27,188 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 (2)] Forceful destruction successful, exit code 0 [2024-11-07 18:54:27,387 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 18:54:27,387 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:27,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:27,388 INFO L85 PathProgramCache]: Analyzing trace with hash 84473, now seen corresponding path program 1 times [2024-11-07 18:54:27,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:27,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [693482953] [2024-11-07 18:54:27,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:27,388 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 18:54:27,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:27,390 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 18:54:27,391 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 (3)] Waiting until timeout for monitored process [2024-11-07 18:54:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:27,515 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 18:54:27,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:27,524 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 18:54:27,533 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 18:54:27,534 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:27,534 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:27,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [693482953] [2024-11-07 18:54:27,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [693482953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:27,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:27,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 18:54:27,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909964191] [2024-11-07 18:54:27,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:27,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:54:27,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:27,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:54:27,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:27,535 INFO L87 Difference]: Start difference. First operand 2421 states and 2754 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:30,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:30,703 INFO L93 Difference]: Finished difference Result 3222 states and 3635 transitions. [2024-11-07 18:54:30,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:54:30,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-07 18:54:30,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:30,712 INFO L225 Difference]: With dead ends: 3222 [2024-11-07 18:54:30,712 INFO L226 Difference]: Without dead ends: 3222 [2024-11-07 18:54:30,712 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:30,712 INFO L432 NwaCegarLoop]: 2039 mSDtfsCounter, 875 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 1427 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 3347 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:30,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 3347 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1427 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-07 18:54:30,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2024-11-07 18:54:30,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 2894. [2024-11-07 18:54:30,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2894 states, 1817 states have (on average 1.9796367638965326) internal successors, (3597), 2875 states have internal predecessors, (3597), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-07 18:54:30,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 3635 transitions. [2024-11-07 18:54:30,749 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 3635 transitions. Word has length 3 [2024-11-07 18:54:30,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:30,749 INFO L471 AbstractCegarLoop]: Abstraction has 2894 states and 3635 transitions. [2024-11-07 18:54:30,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:30,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 3635 transitions. [2024-11-07 18:54:30,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-07 18:54:30,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:30,751 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:30,753 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 (3)] Ended with exit code 0 [2024-11-07 18:54:30,953 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 18:54:30,953 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:30,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:30,953 INFO L85 PathProgramCache]: Analyzing trace with hash 703308354, now seen corresponding path program 1 times [2024-11-07 18:54:30,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:30,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [941843398] [2024-11-07 18:54:30,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:30,954 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 18:54:30,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:30,956 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 18:54:30,957 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 18:54:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:31,095 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-07 18:54:31,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:31,103 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 18:54:31,111 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 18:54:31,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 18:54:31,146 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-07 18:54:31,157 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-07 18:54:31,157 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 18:54:31,194 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 18:54:31,194 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:31,194 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:31,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [941843398] [2024-11-07 18:54:31,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [941843398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:31,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:31,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:54:31,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601033855] [2024-11-07 18:54:31,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:31,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:54:31,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:31,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:54:31,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:54:31,196 INFO L87 Difference]: Start difference. First operand 2894 states and 3635 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:35,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:35,954 INFO L93 Difference]: Finished difference Result 5159 states and 6050 transitions. [2024-11-07 18:54:35,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:54:35,955 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-07 18:54:35,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:35,966 INFO L225 Difference]: With dead ends: 5159 [2024-11-07 18:54:35,967 INFO L226 Difference]: Without dead ends: 5159 [2024-11-07 18:54:35,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 18:54:35,967 INFO L432 NwaCegarLoop]: 994 mSDtfsCounter, 4330 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 2789 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4339 SdHoareTripleChecker+Valid, 2423 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 2789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:35,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4339 Valid, 2423 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 2789 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-07 18:54:35,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5159 states. [2024-11-07 18:54:36,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5159 to 3614. [2024-11-07 18:54:36,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3614 states, 2537 states have (on average 2.011430823807647) internal successors, (5103), 3589 states have internal predecessors, (5103), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:36,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3614 states to 3614 states and 5153 transitions. [2024-11-07 18:54:36,015 INFO L78 Accepts]: Start accepts. Automaton has 3614 states and 5153 transitions. Word has length 7 [2024-11-07 18:54:36,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:36,015 INFO L471 AbstractCegarLoop]: Abstraction has 3614 states and 5153 transitions. [2024-11-07 18:54:36,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:36,015 INFO L276 IsEmpty]: Start isEmpty. Operand 3614 states and 5153 transitions. [2024-11-07 18:54:36,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-07 18:54:36,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:36,017 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:36,024 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 18:54:36,217 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 18:54:36,218 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:36,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:36,218 INFO L85 PathProgramCache]: Analyzing trace with hash 327722514, now seen corresponding path program 1 times [2024-11-07 18:54:36,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:36,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2889956] [2024-11-07 18:54:36,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:36,218 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 18:54:36,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:36,221 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 18:54:36,221 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 18:54:36,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:36,337 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:54:36,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:36,347 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 18:54:36,356 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 18:54:36,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:36,356 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:36,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2889956] [2024-11-07 18:54:36,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2889956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:36,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:36,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 18:54:36,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711590293] [2024-11-07 18:54:36,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:36,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:54:36,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:36,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:54:36,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:36,357 INFO L87 Difference]: Start difference. First operand 3614 states and 5153 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:38,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:38,217 INFO L93 Difference]: Finished difference Result 4326 states and 5823 transitions. [2024-11-07 18:54:38,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:54:38,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-07 18:54:38,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:38,227 INFO L225 Difference]: With dead ends: 4326 [2024-11-07 18:54:38,227 INFO L226 Difference]: Without dead ends: 4326 [2024-11-07 18:54:38,227 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:38,228 INFO L432 NwaCegarLoop]: 2225 mSDtfsCounter, 1920 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 1519 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 2901 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:38,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1930 Valid, 2901 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1519 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 18:54:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4326 states. [2024-11-07 18:54:38,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4326 to 3522. [2024-11-07 18:54:38,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3522 states, 2537 states have (on average 1.9266850610957824) internal successors, (4888), 3497 states have internal predecessors, (4888), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:38,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 4938 transitions. [2024-11-07 18:54:38,275 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 4938 transitions. Word has length 8 [2024-11-07 18:54:38,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:38,275 INFO L471 AbstractCegarLoop]: Abstraction has 3522 states and 4938 transitions. [2024-11-07 18:54:38,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:38,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 4938 transitions. [2024-11-07 18:54:38,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-07 18:54:38,275 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:38,275 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:38,278 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 18:54:38,476 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 18:54:38,476 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:38,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:38,476 INFO L85 PathProgramCache]: Analyzing trace with hash 327722515, now seen corresponding path program 1 times [2024-11-07 18:54:38,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:38,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985001309] [2024-11-07 18:54:38,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:38,477 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 18:54:38,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:38,479 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 18:54:38,480 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 18:54:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:38,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 18:54:38,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:38,601 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 18:54:38,613 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 18:54:38,613 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:38,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:38,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985001309] [2024-11-07 18:54:38,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985001309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:38,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:38,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 18:54:38,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574990250] [2024-11-07 18:54:38,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:38,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:54:38,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:38,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:54:38,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:38,614 INFO L87 Difference]: Start difference. First operand 3522 states and 4938 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:41,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:41,395 INFO L93 Difference]: Finished difference Result 5327 states and 7398 transitions. [2024-11-07 18:54:41,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:54:41,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-07 18:54:41,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:41,406 INFO L225 Difference]: With dead ends: 5327 [2024-11-07 18:54:41,406 INFO L226 Difference]: Without dead ends: 5327 [2024-11-07 18:54:41,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:41,407 INFO L432 NwaCegarLoop]: 2577 mSDtfsCounter, 1423 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 1593 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1427 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:41,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1427 Valid, 3684 Invalid, 1618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1593 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-07 18:54:41,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5327 states. [2024-11-07 18:54:41,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5327 to 3866. [2024-11-07 18:54:41,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3866 states, 2891 states have (on average 1.9121411276374958) internal successors, (5528), 3841 states have internal predecessors, (5528), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:41,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3866 states to 3866 states and 5578 transitions. [2024-11-07 18:54:41,462 INFO L78 Accepts]: Start accepts. Automaton has 3866 states and 5578 transitions. Word has length 8 [2024-11-07 18:54:41,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:41,462 INFO L471 AbstractCegarLoop]: Abstraction has 3866 states and 5578 transitions. [2024-11-07 18:54:41,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:41,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3866 states and 5578 transitions. [2024-11-07 18:54:41,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 18:54:41,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:41,463 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:41,466 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 18:54:41,663 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 18:54:41,664 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr638REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:41,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:41,664 INFO L85 PathProgramCache]: Analyzing trace with hash -582246585, now seen corresponding path program 1 times [2024-11-07 18:54:41,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:41,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [225877681] [2024-11-07 18:54:41,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:41,665 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 18:54:41,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:41,667 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 18:54:41,669 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 18:54:41,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:41,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 18:54:41,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:41,803 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 18:54:41,803 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:41,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:41,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [225877681] [2024-11-07 18:54:41,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [225877681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:41,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:41,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:54:41,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492927537] [2024-11-07 18:54:41,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:41,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:54:41,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:41,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:54:41,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:41,804 INFO L87 Difference]: Start difference. First operand 3866 states and 5578 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 18:54:41,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:41,829 INFO L93 Difference]: Finished difference Result 3806 states and 5492 transitions. [2024-11-07 18:54:41,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:54:41,830 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 18:54:41,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:41,837 INFO L225 Difference]: With dead ends: 3806 [2024-11-07 18:54:41,837 INFO L226 Difference]: Without dead ends: 3806 [2024-11-07 18:54:41,838 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 18:54:41,838 INFO L432 NwaCegarLoop]: 2231 mSDtfsCounter, 71 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 4399 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 18:54:41,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 4399 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:54:41,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2024-11-07 18:54:41,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3806. [2024-11-07 18:54:41,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3806 states, 2855 states have (on average 1.9061295971978984) internal successors, (5442), 3781 states have internal predecessors, (5442), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:41,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3806 states to 3806 states and 5492 transitions. [2024-11-07 18:54:41,893 INFO L78 Accepts]: Start accepts. Automaton has 3806 states and 5492 transitions. Word has length 11 [2024-11-07 18:54:41,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:41,893 INFO L471 AbstractCegarLoop]: Abstraction has 3806 states and 5492 transitions. [2024-11-07 18:54:41,894 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 18:54:41,894 INFO L276 IsEmpty]: Start isEmpty. Operand 3806 states and 5492 transitions. [2024-11-07 18:54:41,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-07 18:54:41,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:41,894 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:41,897 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 (7)] Ended with exit code 0 [2024-11-07 18:54:42,094 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 18:54:42,095 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr662REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:42,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:42,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1193166111, now seen corresponding path program 1 times [2024-11-07 18:54:42,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:42,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021312402] [2024-11-07 18:54:42,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:42,095 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 18:54:42,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:42,097 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 18:54:42,098 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 18:54:42,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:42,225 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:54:42,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:42,241 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 18:54:42,242 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:42,242 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:42,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021312402] [2024-11-07 18:54:42,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021312402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:42,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:42,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:54:42,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208549099] [2024-11-07 18:54:42,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:42,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:54:42,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:42,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:54:42,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:54:42,243 INFO L87 Difference]: Start difference. First operand 3806 states and 5492 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 18:54:42,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:42,313 INFO L93 Difference]: Finished difference Result 3776 states and 5434 transitions. [2024-11-07 18:54:42,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 18:54:42,313 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 18:54:42,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:42,320 INFO L225 Difference]: With dead ends: 3776 [2024-11-07 18:54:42,320 INFO L226 Difference]: Without dead ends: 3776 [2024-11-07 18:54:42,320 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 18:54:42,321 INFO L432 NwaCegarLoop]: 2186 mSDtfsCounter, 48 mSDsluCounter, 4346 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6532 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:42,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6532 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:54:42,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2024-11-07 18:54:42,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3776. [2024-11-07 18:54:42,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3776 states, 2839 states have (on average 1.896442409299049) internal successors, (5384), 3751 states have internal predecessors, (5384), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3776 states to 3776 states and 5434 transitions. [2024-11-07 18:54:42,356 INFO L78 Accepts]: Start accepts. Automaton has 3776 states and 5434 transitions. Word has length 13 [2024-11-07 18:54:42,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:42,356 INFO L471 AbstractCegarLoop]: Abstraction has 3776 states and 5434 transitions. [2024-11-07 18:54:42,356 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 18:54:42,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3776 states and 5434 transitions. [2024-11-07 18:54:42,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-07 18:54:42,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:42,357 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:42,361 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 18:54:42,560 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 18:54:42,560 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr324REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:42,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash -555227553, now seen corresponding path program 1 times [2024-11-07 18:54:42,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:42,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [793572996] [2024-11-07 18:54:42,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:42,561 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 18:54:42,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:42,565 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 18:54:42,566 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 18:54:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:42,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 18:54:42,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:42,737 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 18:54:42,737 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:42,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:42,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [793572996] [2024-11-07 18:54:42,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [793572996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:42,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:42,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:54:42,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860120936] [2024-11-07 18:54:42,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:42,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:54:42,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:42,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:54:42,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:42,738 INFO L87 Difference]: Start difference. First operand 3776 states and 5434 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:42,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:42,763 INFO L93 Difference]: Finished difference Result 3644 states and 5176 transitions. [2024-11-07 18:54:42,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:54:42,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-07 18:54:42,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:42,769 INFO L225 Difference]: With dead ends: 3644 [2024-11-07 18:54:42,769 INFO L226 Difference]: Without dead ends: 3644 [2024-11-07 18:54:42,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:42,770 INFO L432 NwaCegarLoop]: 2153 mSDtfsCounter, 71 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 4243 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 18:54:42,770 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 4243 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:54:42,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3644 states. [2024-11-07 18:54:42,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3644 to 3644. [2024-11-07 18:54:42,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3644 states, 2731 states have (on average 1.876968143537166) internal successors, (5126), 3619 states have internal predecessors, (5126), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:42,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3644 states to 3644 states and 5176 transitions. [2024-11-07 18:54:42,815 INFO L78 Accepts]: Start accepts. Automaton has 3644 states and 5176 transitions. Word has length 20 [2024-11-07 18:54:42,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:42,815 INFO L471 AbstractCegarLoop]: Abstraction has 3644 states and 5176 transitions. [2024-11-07 18:54:42,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:42,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3644 states and 5176 transitions. [2024-11-07 18:54:42,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-07 18:54:42,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:42,816 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:42,820 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 (9)] Forceful destruction successful, exit code 0 [2024-11-07 18:54:43,017 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 18:54:43,017 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:43,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:43,018 INFO L85 PathProgramCache]: Analyzing trace with hash -286362849, now seen corresponding path program 1 times [2024-11-07 18:54:43,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:43,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681061424] [2024-11-07 18:54:43,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:43,018 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 18:54:43,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:43,020 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 18:54:43,022 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 18:54:43,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:43,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 18:54:43,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:43,171 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 18:54:43,171 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:43,171 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:43,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681061424] [2024-11-07 18:54:43,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681061424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:43,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:43,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:54:43,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113820495] [2024-11-07 18:54:43,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:43,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:54:43,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:43,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:54:43,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:43,172 INFO L87 Difference]: Start difference. First operand 3644 states and 5176 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:43,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:43,197 INFO L93 Difference]: Finished difference Result 3584 states and 5090 transitions. [2024-11-07 18:54:43,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:54:43,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-07 18:54:43,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:43,213 INFO L225 Difference]: With dead ends: 3584 [2024-11-07 18:54:43,213 INFO L226 Difference]: Without dead ends: 3584 [2024-11-07 18:54:43,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:54:43,215 INFO L432 NwaCegarLoop]: 2110 mSDtfsCounter, 71 mSDsluCounter, 2047 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 4157 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 18:54:43,215 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 4157 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:54:43,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2024-11-07 18:54:43,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 3584. [2024-11-07 18:54:43,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3584 states, 2695 states have (on average 1.87012987012987) internal successors, (5040), 3559 states have internal predecessors, (5040), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3584 states to 3584 states and 5090 transitions. [2024-11-07 18:54:43,248 INFO L78 Accepts]: Start accepts. Automaton has 3584 states and 5090 transitions. Word has length 20 [2024-11-07 18:54:43,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:43,248 INFO L471 AbstractCegarLoop]: Abstraction has 3584 states and 5090 transitions. [2024-11-07 18:54:43,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:43,248 INFO L276 IsEmpty]: Start isEmpty. Operand 3584 states and 5090 transitions. [2024-11-07 18:54:43,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-07 18:54:43,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:43,250 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:43,254 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 18:54:43,451 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 18:54:43,451 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr348REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:43,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:43,452 INFO L85 PathProgramCache]: Analyzing trace with hash -997708103, now seen corresponding path program 1 times [2024-11-07 18:54:43,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:43,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1680520119] [2024-11-07 18:54:43,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:43,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:54:43,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:43,454 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 18:54:43,455 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 (11)] Waiting until timeout for monitored process [2024-11-07 18:54:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:43,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:54:43,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:43,621 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 18:54:43,621 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:43,621 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:43,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1680520119] [2024-11-07 18:54:43,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1680520119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:43,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:43,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:54:43,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001269807] [2024-11-07 18:54:43,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:43,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:54:43,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:43,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:54:43,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:54:43,622 INFO L87 Difference]: Start difference. First operand 3584 states and 5090 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:43,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:43,676 INFO L93 Difference]: Finished difference Result 3522 states and 4916 transitions. [2024-11-07 18:54:43,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 18:54:43,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-07 18:54:43,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:43,682 INFO L225 Difference]: With dead ends: 3522 [2024-11-07 18:54:43,682 INFO L226 Difference]: Without dead ends: 3522 [2024-11-07 18:54:43,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:54:43,683 INFO L432 NwaCegarLoop]: 2065 mSDtfsCounter, 48 mSDsluCounter, 4104 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6169 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:43,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6169 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:54:43,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2024-11-07 18:54:43,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3522. [2024-11-07 18:54:43,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3522 states, 2647 states have (on average 1.8383075179448432) internal successors, (4866), 3497 states have internal predecessors, (4866), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:43,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 4916 transitions. [2024-11-07 18:54:43,724 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 4916 transitions. Word has length 22 [2024-11-07 18:54:43,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:43,724 INFO L471 AbstractCegarLoop]: Abstraction has 3522 states and 4916 transitions. [2024-11-07 18:54:43,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:43,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 4916 transitions. [2024-11-07 18:54:43,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-07 18:54:43,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:43,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:43,730 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 (11)] Ended with exit code 0 [2024-11-07 18:54:43,926 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 18:54:43,926 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:43,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:43,927 INFO L85 PathProgramCache]: Analyzing trace with hash -316792903, now seen corresponding path program 1 times [2024-11-07 18:54:43,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:43,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1514527799] [2024-11-07 18:54:43,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:43,927 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 18:54:43,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:43,929 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 18:54:43,931 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 18:54:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:44,079 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:54:44,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:44,095 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 18:54:44,095 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:44,095 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:44,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1514527799] [2024-11-07 18:54:44,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1514527799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:44,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:44,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:54:44,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6036546] [2024-11-07 18:54:44,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:44,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:54:44,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:44,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:54:44,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:54:44,096 INFO L87 Difference]: Start difference. First operand 3522 states and 4916 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:44,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:44,155 INFO L93 Difference]: Finished difference Result 3492 states and 4858 transitions. [2024-11-07 18:54:44,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 18:54:44,155 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2024-11-07 18:54:44,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:44,160 INFO L225 Difference]: With dead ends: 3492 [2024-11-07 18:54:44,160 INFO L226 Difference]: Without dead ends: 3492 [2024-11-07 18:54:44,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:54:44,161 INFO L432 NwaCegarLoop]: 2030 mSDtfsCounter, 48 mSDsluCounter, 4034 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 6064 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:44,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 6064 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:54:44,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3492 states. [2024-11-07 18:54:44,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3492 to 3492. [2024-11-07 18:54:44,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3492 states, 2631 states have (on average 1.8274420372481945) internal successors, (4808), 3467 states have internal predecessors, (4808), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:44,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3492 states to 3492 states and 4858 transitions. [2024-11-07 18:54:44,197 INFO L78 Accepts]: Start accepts. Automaton has 3492 states and 4858 transitions. Word has length 22 [2024-11-07 18:54:44,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:44,197 INFO L471 AbstractCegarLoop]: Abstraction has 3492 states and 4858 transitions. [2024-11-07 18:54:44,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:44,197 INFO L276 IsEmpty]: Start isEmpty. Operand 3492 states and 4858 transitions. [2024-11-07 18:54:44,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-07 18:54:44,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:44,198 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 18:54:44,202 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 (12)] Forceful destruction successful, exit code 0 [2024-11-07 18:54:44,401 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 18:54:44,401 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr676REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:44,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:44,402 INFO L85 PathProgramCache]: Analyzing trace with hash -544433649, now seen corresponding path program 1 times [2024-11-07 18:54:44,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:44,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [702201894] [2024-11-07 18:54:44,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:44,402 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 18:54:44,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:44,404 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 18:54:44,406 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 18:54:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:44,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 18:54:44,536 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:44,540 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 18:54:44,580 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 18:54:44,580 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:44,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:44,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [702201894] [2024-11-07 18:54:44,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [702201894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:44,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:44,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:54:44,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627383549] [2024-11-07 18:54:44,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:44,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:54:44,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:44,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:54:44,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:54:44,581 INFO L87 Difference]: Start difference. First operand 3492 states and 4858 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 18:54:46,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:46,755 INFO L93 Difference]: Finished difference Result 3939 states and 5212 transitions. [2024-11-07 18:54:46,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:54:46,755 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 18:54:46,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:46,760 INFO L225 Difference]: With dead ends: 3939 [2024-11-07 18:54:46,760 INFO L226 Difference]: Without dead ends: 3939 [2024-11-07 18:54:46,760 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 18:54:46,761 INFO L432 NwaCegarLoop]: 1250 mSDtfsCounter, 1835 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:46,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1845 Valid, 2810 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 18:54:46,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3939 states. [2024-11-07 18:54:46,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3939 to 3488. [2024-11-07 18:54:46,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3488 states, 2631 states have (on average 1.8244013683010263) internal successors, (4800), 3463 states have internal predecessors, (4800), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:46,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3488 states to 3488 states and 4850 transitions. [2024-11-07 18:54:46,783 INFO L78 Accepts]: Start accepts. Automaton has 3488 states and 4850 transitions. Word has length 27 [2024-11-07 18:54:46,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:46,783 INFO L471 AbstractCegarLoop]: Abstraction has 3488 states and 4850 transitions. [2024-11-07 18:54:46,783 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 18:54:46,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3488 states and 4850 transitions. [2024-11-07 18:54:46,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-07 18:54:46,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:46,783 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 18:54:46,786 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 18:54:46,984 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 18:54:46,984 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr677REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:46,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:46,984 INFO L85 PathProgramCache]: Analyzing trace with hash -544433648, now seen corresponding path program 1 times [2024-11-07 18:54:46,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:46,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791457191] [2024-11-07 18:54:46,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:46,985 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 18:54:46,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:46,988 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 18:54:46,989 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 18:54:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:47,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 18:54:47,124 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:47,128 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 18:54:47,220 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 18:54:47,221 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:47,221 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:47,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791457191] [2024-11-07 18:54:47,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791457191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:47,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:47,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:54:47,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495856092] [2024-11-07 18:54:47,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:47,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:54:47,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:47,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:54:47,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:54:47,222 INFO L87 Difference]: Start difference. First operand 3488 states and 4850 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 18:54:50,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:50,121 INFO L93 Difference]: Finished difference Result 4222 states and 5656 transitions. [2024-11-07 18:54:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:54:50,121 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 18:54:50,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:50,126 INFO L225 Difference]: With dead ends: 4222 [2024-11-07 18:54:50,126 INFO L226 Difference]: Without dead ends: 4222 [2024-11-07 18:54:50,127 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 18:54:50,128 INFO L432 NwaCegarLoop]: 1741 mSDtfsCounter, 806 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 3923 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:50,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 3923 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2219 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-07 18:54:50,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2024-11-07 18:54:50,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 3524. [2024-11-07 18:54:50,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3524 states, 2667 states have (on average 1.8151481064866892) internal successors, (4841), 3499 states have internal predecessors, (4841), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:50,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3524 states to 3524 states and 4891 transitions. [2024-11-07 18:54:50,156 INFO L78 Accepts]: Start accepts. Automaton has 3524 states and 4891 transitions. Word has length 27 [2024-11-07 18:54:50,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:50,156 INFO L471 AbstractCegarLoop]: Abstraction has 3524 states and 4891 transitions. [2024-11-07 18:54:50,156 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 18:54:50,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3524 states and 4891 transitions. [2024-11-07 18:54:50,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-07 18:54:50,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:50,157 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:50,161 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 18:54:50,357 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 18:54:50,358 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr362REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:50,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:50,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1953826599, now seen corresponding path program 1 times [2024-11-07 18:54:50,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:50,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1606078031] [2024-11-07 18:54:50,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:50,358 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 18:54:50,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:50,361 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 18:54:50,361 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 18:54:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:50,512 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 18:54:50,515 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:50,519 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 18:54:50,564 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 18:54:50,564 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:50,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:50,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1606078031] [2024-11-07 18:54:50,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1606078031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:50,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:50,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:54:50,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938340550] [2024-11-07 18:54:50,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:50,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:54:50,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:50,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:54:50,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:54:50,565 INFO L87 Difference]: Start difference. First operand 3524 states and 4891 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:52,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:52,827 INFO L93 Difference]: Finished difference Result 4240 states and 5655 transitions. [2024-11-07 18:54:52,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:54:52,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-07 18:54:52,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:52,832 INFO L225 Difference]: With dead ends: 4240 [2024-11-07 18:54:52,832 INFO L226 Difference]: Without dead ends: 4240 [2024-11-07 18:54:52,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:54:52,834 INFO L432 NwaCegarLoop]: 2015 mSDtfsCounter, 1691 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 2594 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 4201 SdHoareTripleChecker+Invalid, 2605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:52,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 4201 Invalid, 2605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2594 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 18:54:52,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4240 states. [2024-11-07 18:54:52,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4240 to 3520. [2024-11-07 18:54:52,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 2667 states have (on average 1.8061492313460816) internal successors, (4817), 3495 states have internal predecessors, (4817), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:52,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 4867 transitions. [2024-11-07 18:54:52,860 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 4867 transitions. Word has length 36 [2024-11-07 18:54:52,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:52,860 INFO L471 AbstractCegarLoop]: Abstraction has 3520 states and 4867 transitions. [2024-11-07 18:54:52,860 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:52,860 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 4867 transitions. [2024-11-07 18:54:52,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-07 18:54:52,861 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:52,862 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:52,867 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 18:54:53,062 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 18:54:53,062 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr363REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:53,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:53,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1953826600, now seen corresponding path program 1 times [2024-11-07 18:54:53,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:53,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113215737] [2024-11-07 18:54:53,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:53,063 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:54:53,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:53,067 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 18:54:53,068 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 18:54:53,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:53,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 18:54:53,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:53,230 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 18:54:53,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:54:53,342 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:53,342 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:53,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113215737] [2024-11-07 18:54:53,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113215737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:53,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:53,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:54:53,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448082249] [2024-11-07 18:54:53,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:53,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:54:53,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:53,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:54:53,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:54:53,344 INFO L87 Difference]: Start difference. First operand 3520 states and 4867 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:56,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:56,582 INFO L93 Difference]: Finished difference Result 4849 states and 6535 transitions. [2024-11-07 18:54:56,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:54:56,583 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-07 18:54:56,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:56,588 INFO L225 Difference]: With dead ends: 4849 [2024-11-07 18:54:56,588 INFO L226 Difference]: Without dead ends: 4849 [2024-11-07 18:54:56,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:54:56,590 INFO L432 NwaCegarLoop]: 2369 mSDtfsCounter, 1190 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 2660 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 4978 SdHoareTripleChecker+Invalid, 2663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:56,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1194 Valid, 4978 Invalid, 2663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2660 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-07 18:54:56,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4849 states. [2024-11-07 18:54:56,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4849 to 3520. [2024-11-07 18:54:56,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 2667 states have (on average 1.8031496062992125) internal successors, (4809), 3495 states have internal predecessors, (4809), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:56,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 4859 transitions. [2024-11-07 18:54:56,618 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 4859 transitions. Word has length 36 [2024-11-07 18:54:56,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:56,618 INFO L471 AbstractCegarLoop]: Abstraction has 3520 states and 4859 transitions. [2024-11-07 18:54:56,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:56,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 4859 transitions. [2024-11-07 18:54:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-07 18:54:56,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:56,619 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:56,624 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 18:54:56,819 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 18:54:56,819 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr54REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:56,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:56,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1978988007, now seen corresponding path program 1 times [2024-11-07 18:54:56,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:56,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020570851] [2024-11-07 18:54:56,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:56,820 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 18:54:56,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:56,822 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 18:54:56,824 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 18:54:56,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:56,970 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 18:54:56,972 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:56,975 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2024-11-07 18:54:57,018 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 18:54:57,018 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:57,018 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:57,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020570851] [2024-11-07 18:54:57,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1020570851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:57,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:57,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:54:57,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768757255] [2024-11-07 18:54:57,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:57,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:54:57,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:57,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:54:57,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:54:57,019 INFO L87 Difference]: Start difference. First operand 3520 states and 4859 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:59,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:54:59,301 INFO L93 Difference]: Finished difference Result 4220 states and 5623 transitions. [2024-11-07 18:54:59,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:54:59,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-07 18:54:59,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:54:59,306 INFO L225 Difference]: With dead ends: 4220 [2024-11-07 18:54:59,306 INFO L226 Difference]: Without dead ends: 4220 [2024-11-07 18:54:59,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:54:59,306 INFO L432 NwaCegarLoop]: 2015 mSDtfsCounter, 1687 mSDsluCounter, 2186 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 4201 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 18:54:59,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 4201 Invalid, 2597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 2586 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 18:54:59,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4220 states. [2024-11-07 18:54:59,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4220 to 3516. [2024-11-07 18:54:59,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3516 states, 2667 states have (on average 1.8001499812523434) internal successors, (4801), 3491 states have internal predecessors, (4801), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:54:59,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3516 states to 3516 states and 4851 transitions. [2024-11-07 18:54:59,329 INFO L78 Accepts]: Start accepts. Automaton has 3516 states and 4851 transitions. Word has length 36 [2024-11-07 18:54:59,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:54:59,329 INFO L471 AbstractCegarLoop]: Abstraction has 3516 states and 4851 transitions. [2024-11-07 18:54:59,329 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:54:59,330 INFO L276 IsEmpty]: Start isEmpty. Operand 3516 states and 4851 transitions. [2024-11-07 18:54:59,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-07 18:54:59,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:54:59,330 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:54:59,334 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 18:54:59,530 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 18:54:59,531 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:54:59,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:54:59,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1978988008, now seen corresponding path program 1 times [2024-11-07 18:54:59,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:54:59,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252899278] [2024-11-07 18:54:59,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:54:59,532 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 18:54:59,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:54:59,534 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 18:54:59,536 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 18:54:59,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:54:59,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 18:54:59,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:54:59,703 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 18:54:59,812 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 18:54:59,812 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:54:59,816 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:54:59,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252899278] [2024-11-07 18:54:59,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252899278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:54:59,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:54:59,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:54:59,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512170436] [2024-11-07 18:54:59,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:54:59,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:54:59,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:54:59,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:54:59,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:54:59,817 INFO L87 Difference]: Start difference. First operand 3516 states and 4851 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:55:03,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:03,089 INFO L93 Difference]: Finished difference Result 4841 states and 6519 transitions. [2024-11-07 18:55:03,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:55:03,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-07 18:55:03,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:03,093 INFO L225 Difference]: With dead ends: 4841 [2024-11-07 18:55:03,093 INFO L226 Difference]: Without dead ends: 4841 [2024-11-07 18:55:03,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:55:03,093 INFO L432 NwaCegarLoop]: 2365 mSDtfsCounter, 1182 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 2648 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1186 SdHoareTripleChecker+Valid, 4940 SdHoareTripleChecker+Invalid, 2651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:03,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1186 Valid, 4940 Invalid, 2651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2648 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-07 18:55:03,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2024-11-07 18:55:03,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 3512. [2024-11-07 18:55:03,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3512 states, 2667 states have (on average 1.7971503562054743) internal successors, (4793), 3487 states have internal predecessors, (4793), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:55:03,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3512 states to 3512 states and 4843 transitions. [2024-11-07 18:55:03,117 INFO L78 Accepts]: Start accepts. Automaton has 3512 states and 4843 transitions. Word has length 36 [2024-11-07 18:55:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:03,117 INFO L471 AbstractCegarLoop]: Abstraction has 3512 states and 4843 transitions. [2024-11-07 18:55:03,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:55:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 3512 states and 4843 transitions. [2024-11-07 18:55:03,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-07 18:55:03,117 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:03,118 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] [2024-11-07 18:55:03,122 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 (18)] Forceful destruction successful, exit code 0 [2024-11-07 18:55:03,318 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 18:55:03,318 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr684REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:03,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:03,319 INFO L85 PathProgramCache]: Analyzing trace with hash 841114057, now seen corresponding path program 1 times [2024-11-07 18:55:03,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:03,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062606691] [2024-11-07 18:55:03,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:03,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:55:03,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:03,321 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 18:55:03,323 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 (19)] Waiting until timeout for monitored process [2024-11-07 18:55:03,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:03,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:55:03,483 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:03,511 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 18:55:03,512 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:55:03,512 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:03,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062606691] [2024-11-07 18:55:03,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062606691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:55:03,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:55:03,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:55:03,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966329261] [2024-11-07 18:55:03,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:55:03,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:55:03,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:03,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:55:03,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:55:03,514 INFO L87 Difference]: Start difference. First operand 3512 states and 4843 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 18:55:03,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:03,562 INFO L93 Difference]: Finished difference Result 3500 states and 4819 transitions. [2024-11-07 18:55:03,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 18:55:03,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 41 [2024-11-07 18:55:03,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:03,583 INFO L225 Difference]: With dead ends: 3500 [2024-11-07 18:55:03,583 INFO L226 Difference]: Without dead ends: 3500 [2024-11-07 18:55:03,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 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 18:55:03,584 INFO L432 NwaCegarLoop]: 2016 mSDtfsCounter, 27 mSDsluCounter, 3995 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 6011 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 18:55:03,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 6011 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:55:03,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3500 states. [2024-11-07 18:55:03,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3500 to 3500. [2024-11-07 18:55:03,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3500 states, 2655 states have (on average 1.7962335216572505) internal successors, (4769), 3475 states have internal predecessors, (4769), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 22 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-07 18:55:03,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3500 states to 3500 states and 4819 transitions. [2024-11-07 18:55:03,610 INFO L78 Accepts]: Start accepts. Automaton has 3500 states and 4819 transitions. Word has length 41 [2024-11-07 18:55:03,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:03,611 INFO L471 AbstractCegarLoop]: Abstraction has 3500 states and 4819 transitions. [2024-11-07 18:55:03,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 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 18:55:03,611 INFO L276 IsEmpty]: Start isEmpty. Operand 3500 states and 4819 transitions. [2024-11-07 18:55:03,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-07 18:55:03,612 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:03,612 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] [2024-11-07 18:55:03,616 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 (19)] Ended with exit code 0 [2024-11-07 18:55:03,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /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 18:55:03,815 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr684REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:03,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:03,816 INFO L85 PathProgramCache]: Analyzing trace with hash 385316629, now seen corresponding path program 1 times [2024-11-07 18:55:03,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:03,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536731036] [2024-11-07 18:55:03,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:03,816 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 18:55:03,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:03,818 INFO L229 MonitoredProcess]: Starting monitored process 20 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 18:55:03,819 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 (20)] Waiting until timeout for monitored process [2024-11-07 18:55:03,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:03,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:55:03,967 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:04,091 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 18:55:04,091 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:55:04,091 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:04,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1536731036] [2024-11-07 18:55:04,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1536731036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:55:04,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:55:04,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:55:04,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046171997] [2024-11-07 18:55:04,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:55:04,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:55:04,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:04,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:55:04,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:55:04,092 INFO L87 Difference]: Start difference. First operand 3500 states and 4819 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 18:55:04,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:04,272 INFO L93 Difference]: Finished difference Result 5151 states and 6877 transitions. [2024-11-07 18:55:04,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:55:04,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2024-11-07 18:55:04,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:04,276 INFO L225 Difference]: With dead ends: 5151 [2024-11-07 18:55:04,276 INFO L226 Difference]: Without dead ends: 5151 [2024-11-07 18:55:04,276 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 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 18:55:04,276 INFO L432 NwaCegarLoop]: 2101 mSDtfsCounter, 1299 mSDsluCounter, 1931 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 4032 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:04,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 4032 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 18:55:04,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5151 states. [2024-11-07 18:55:04,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5151 to 4554. [2024-11-07 18:55:04,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4554 states, 3702 states have (on average 1.7847109670448407) internal successors, (6607), 4519 states have internal predecessors, (6607), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-07 18:55:04,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4554 states to 4554 states and 6677 transitions. [2024-11-07 18:55:04,305 INFO L78 Accepts]: Start accepts. Automaton has 4554 states and 6677 transitions. Word has length 49 [2024-11-07 18:55:04,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:04,305 INFO L471 AbstractCegarLoop]: Abstraction has 4554 states and 6677 transitions. [2024-11-07 18:55:04,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 18:55:04,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4554 states and 6677 transitions. [2024-11-07 18:55:04,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-07 18:55:04,306 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:04,306 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] [2024-11-07 18:55:04,311 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 (20)] Ended with exit code 0 [2024-11-07 18:55:04,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /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 18:55:04,507 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr427REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:04,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:04,508 INFO L85 PathProgramCache]: Analyzing trace with hash 2050666657, now seen corresponding path program 1 times [2024-11-07 18:55:04,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:04,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1047122062] [2024-11-07 18:55:04,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:04,508 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 18:55:04,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:04,510 INFO L229 MonitoredProcess]: Starting monitored process 21 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 18:55:04,512 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 (21)] Waiting until timeout for monitored process [2024-11-07 18:55:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:04,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:55:04,710 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:04,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:55:04,732 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:55:04,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:04,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1047122062] [2024-11-07 18:55:04,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1047122062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:55:04,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:55:04,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:55:04,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531999082] [2024-11-07 18:55:04,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:55:04,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:55:04,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:04,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:55:04,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:55:04,733 INFO L87 Difference]: Start difference. First operand 4554 states and 6677 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 18:55:04,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:04,776 INFO L93 Difference]: Finished difference Result 4512 states and 6607 transitions. [2024-11-07 18:55:04,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 18:55:04,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 52 [2024-11-07 18:55:04,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:04,780 INFO L225 Difference]: With dead ends: 4512 [2024-11-07 18:55:04,780 INFO L226 Difference]: Without dead ends: 4512 [2024-11-07 18:55:04,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 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 18:55:04,781 INFO L432 NwaCegarLoop]: 2012 mSDtfsCounter, 27 mSDsluCounter, 3987 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5999 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 18:55:04,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5999 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:55:04,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4512 states. [2024-11-07 18:55:04,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4512 to 4512. [2024-11-07 18:55:04,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4512 states, 3660 states have (on average 1.7860655737704918) internal successors, (6537), 4477 states have internal predecessors, (6537), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-07 18:55:04,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 6607 transitions. [2024-11-07 18:55:04,829 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 6607 transitions. Word has length 52 [2024-11-07 18:55:04,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:04,829 INFO L471 AbstractCegarLoop]: Abstraction has 4512 states and 6607 transitions. [2024-11-07 18:55:04,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 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 18:55:04,829 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 6607 transitions. [2024-11-07 18:55:04,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-07 18:55:04,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:04,830 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:55:04,835 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 (21)] Ended with exit code 0 [2024-11-07 18:55:05,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /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 18:55:05,031 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:05,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:05,031 INFO L85 PathProgramCache]: Analyzing trace with hash 705263610, now seen corresponding path program 1 times [2024-11-07 18:55:05,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:05,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [324191357] [2024-11-07 18:55:05,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:05,031 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 18:55:05,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:05,033 INFO L229 MonitoredProcess]: Starting monitored process 22 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 18:55:05,034 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 (22)] Waiting until timeout for monitored process [2024-11-07 18:55:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:05,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:55:05,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:05,243 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 18:55:05,243 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:55:05,243 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:05,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [324191357] [2024-11-07 18:55:05,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [324191357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:55:05,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:55:05,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:55:05,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85601875] [2024-11-07 18:55:05,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:55:05,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:55:05,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:05,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:55:05,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:55:05,244 INFO L87 Difference]: Start difference. First operand 4512 states and 6607 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:55:05,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:05,283 INFO L93 Difference]: Finished difference Result 4494 states and 6577 transitions. [2024-11-07 18:55:05,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 18:55:05,284 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-07 18:55:05,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:05,287 INFO L225 Difference]: With dead ends: 4494 [2024-11-07 18:55:05,288 INFO L226 Difference]: Without dead ends: 4494 [2024-11-07 18:55:05,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 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 18:55:05,288 INFO L432 NwaCegarLoop]: 2008 mSDtfsCounter, 21 mSDsluCounter, 3985 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 5993 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 18:55:05,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 5993 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:55:05,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4494 states. [2024-11-07 18:55:05,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4494 to 4494. [2024-11-07 18:55:05,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4494 states, 3642 states have (on average 1.78665568369028) internal successors, (6507), 4459 states have internal predecessors, (6507), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-07 18:55:05,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4494 states to 4494 states and 6577 transitions. [2024-11-07 18:55:05,316 INFO L78 Accepts]: Start accepts. Automaton has 4494 states and 6577 transitions. Word has length 55 [2024-11-07 18:55:05,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:05,316 INFO L471 AbstractCegarLoop]: Abstraction has 4494 states and 6577 transitions. [2024-11-07 18:55:05,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:55:05,316 INFO L276 IsEmpty]: Start isEmpty. Operand 4494 states and 6577 transitions. [2024-11-07 18:55:05,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 18:55:05,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:05,316 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:55:05,321 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 (22)] Ended with exit code 0 [2024-11-07 18:55:05,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /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 18:55:05,517 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:05,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:05,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1394668725, now seen corresponding path program 1 times [2024-11-07 18:55:05,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:05,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1645150591] [2024-11-07 18:55:05,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:05,518 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 18:55:05,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:05,519 INFO L229 MonitoredProcess]: Starting monitored process 23 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 18:55:05,520 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 (23)] Waiting until timeout for monitored process [2024-11-07 18:55:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:05,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 18:55:05,717 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:05,725 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 18:55:05,725 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 18:55:05,728 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 33 treesize of output 31 [2024-11-07 18:55:05,756 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 18:55:05,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 22 [2024-11-07 18:55:05,770 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 18:55:05,770 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:55:05,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:05,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1645150591] [2024-11-07 18:55:05,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1645150591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:55:05,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:55:05,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:55:05,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881137775] [2024-11-07 18:55:05,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:55:05,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:55:05,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:05,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:55:05,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:55:05,772 INFO L87 Difference]: Start difference. First operand 4494 states and 6577 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:55:06,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:06,356 INFO L93 Difference]: Finished difference Result 5952 states and 8592 transitions. [2024-11-07 18:55:06,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:55:06,357 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-07 18:55:06,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:06,363 INFO L225 Difference]: With dead ends: 5952 [2024-11-07 18:55:06,364 INFO L226 Difference]: Without dead ends: 5952 [2024-11-07 18:55:06,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 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 18:55:06,365 INFO L432 NwaCegarLoop]: 2130 mSDtfsCounter, 1694 mSDsluCounter, 3325 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1703 SdHoareTripleChecker+Valid, 5455 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:06,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1703 Valid, 5455 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 18:55:06,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2024-11-07 18:55:06,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 4460. [2024-11-07 18:55:06,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4460 states, 3608 states have (on average 1.793791574279379) internal successors, (6472), 4425 states have internal predecessors, (6472), 35 states have call successors, (35), 3 states have call predecessors, (35), 3 states have return successors, (35), 32 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-07 18:55:06,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4460 states to 4460 states and 6542 transitions. [2024-11-07 18:55:06,395 INFO L78 Accepts]: Start accepts. Automaton has 4460 states and 6542 transitions. Word has length 60 [2024-11-07 18:55:06,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:06,395 INFO L471 AbstractCegarLoop]: Abstraction has 4460 states and 6542 transitions. [2024-11-07 18:55:06,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:55:06,395 INFO L276 IsEmpty]: Start isEmpty. Operand 4460 states and 6542 transitions. [2024-11-07 18:55:06,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-07 18:55:06,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:06,396 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:55:06,401 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 (23)] Ended with exit code 0 [2024-11-07 18:55:06,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 18:55:06,596 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr427REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:06,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:06,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1034209811, now seen corresponding path program 1 times [2024-11-07 18:55:06,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:06,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594749667] [2024-11-07 18:55:06,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:06,597 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 18:55:06,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:06,599 INFO L229 MonitoredProcess]: Starting monitored process 24 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 18:55:06,599 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 (24)] Waiting until timeout for monitored process [2024-11-07 18:55:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:06,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:55:06,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:06,995 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 18:55:06,996 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:55:06,996 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:06,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594749667] [2024-11-07 18:55:06,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594749667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:55:06,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:55:06,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:55:06,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710028670] [2024-11-07 18:55:06,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:55:06,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 18:55:06,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 18:55:06,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 18:55:06,996 INFO L87 Difference]: Start difference. First operand 4460 states and 6542 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:55:07,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:07,087 INFO L93 Difference]: Finished difference Result 6108 states and 8657 transitions. [2024-11-07 18:55:07,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 18:55:07,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-07 18:55:07,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:07,093 INFO L225 Difference]: With dead ends: 6108 [2024-11-07 18:55:07,093 INFO L226 Difference]: Without dead ends: 6108 [2024-11-07 18:55:07,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 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 18:55:07,093 INFO L432 NwaCegarLoop]: 2027 mSDtfsCounter, 1009 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 3988 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:07,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 3988 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 18:55:07,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6108 states. [2024-11-07 18:55:07,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6108 to 5560. [2024-11-07 18:55:07,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5560 states, 4700 states have (on average 1.7717021276595746) internal successors, (8327), 5514 states have internal predecessors, (8327), 46 states have call successors, (46), 3 states have call predecessors, (46), 3 states have return successors, (46), 43 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-07 18:55:07,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5560 states to 5560 states and 8419 transitions. [2024-11-07 18:55:07,131 INFO L78 Accepts]: Start accepts. Automaton has 5560 states and 8419 transitions. Word has length 60 [2024-11-07 18:55:07,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:07,131 INFO L471 AbstractCegarLoop]: Abstraction has 5560 states and 8419 transitions. [2024-11-07 18:55:07,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 18:55:07,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5560 states and 8419 transitions. [2024-11-07 18:55:07,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-07 18:55:07,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:07,132 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] [2024-11-07 18:55:07,137 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 (24)] Forceful destruction successful, exit code 0 [2024-11-07 18:55:07,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 18:55:07,332 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr381REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:07,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:07,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1844344716, now seen corresponding path program 1 times [2024-11-07 18:55:07,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:07,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [395156800] [2024-11-07 18:55:07,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:07,333 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 18:55:07,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:07,335 INFO L229 MonitoredProcess]: Starting monitored process 25 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 18:55:07,335 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 (25)] Waiting until timeout for monitored process [2024-11-07 18:55:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:07,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 18:55:07,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:07,622 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 18:55:07,622 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 18:55:07,623 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-07 18:55:07,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2024-11-07 18:55:07,721 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-07 18:55:07,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2024-11-07 18:55:07,728 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 18:55:07,728 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:55:07,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:07,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [395156800] [2024-11-07 18:55:07,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [395156800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:55:07,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:55:07,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:55:07,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491218441] [2024-11-07 18:55:07,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:55:07,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:55:07,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:07,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:55:07,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:55:07,729 INFO L87 Difference]: Start difference. First operand 5560 states and 8419 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 18:55:08,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:08,072 INFO L93 Difference]: Finished difference Result 5884 states and 8505 transitions. [2024-11-07 18:55:08,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:55:08,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 63 [2024-11-07 18:55:08,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:08,077 INFO L225 Difference]: With dead ends: 5884 [2024-11-07 18:55:08,077 INFO L226 Difference]: Without dead ends: 5884 [2024-11-07 18:55:08,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 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 18:55:08,078 INFO L432 NwaCegarLoop]: 2228 mSDtfsCounter, 857 mSDsluCounter, 4125 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 6353 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:08,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 6353 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 18:55:08,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2024-11-07 18:55:08,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5119. [2024-11-07 18:55:08,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5119 states, 4259 states have (on average 1.7912655552946701) internal successors, (7629), 5076 states have internal predecessors, (7629), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-07 18:55:08,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 7715 transitions. [2024-11-07 18:55:08,107 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 7715 transitions. Word has length 63 [2024-11-07 18:55:08,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:08,107 INFO L471 AbstractCegarLoop]: Abstraction has 5119 states and 7715 transitions. [2024-11-07 18:55:08,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 18:55:08,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 7715 transitions. [2024-11-07 18:55:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-07 18:55:08,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:08,108 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] [2024-11-07 18:55:08,114 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 (25)] Ended with exit code 0 [2024-11-07 18:55:08,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 18:55:08,308 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:08,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:08,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1265725906, now seen corresponding path program 1 times [2024-11-07 18:55:08,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:08,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1075738253] [2024-11-07 18:55:08,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:08,309 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 18:55:08,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:08,312 INFO L229 MonitoredProcess]: Starting monitored process 26 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 18:55:08,313 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 (26)] Waiting until timeout for monitored process [2024-11-07 18:55:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:08,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-07 18:55:08,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:08,601 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 18:55:08,606 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 18:55:08,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 18:55:08,878 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 18:55:08,885 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2024-11-07 18:55:08,885 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 18:55:08,892 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 18:55:08,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:55:08,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:08,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1075738253] [2024-11-07 18:55:08,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1075738253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:55:08,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:55:08,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 18:55:08,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376113850] [2024-11-07 18:55:08,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:55:08,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:55:08,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:08,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:55:08,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:55:08,892 INFO L87 Difference]: Start difference. First operand 5119 states and 7715 transitions. Second operand has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 18:55:10,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:10,938 INFO L93 Difference]: Finished difference Result 5035 states and 7472 transitions. [2024-11-07 18:55:10,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:55:10,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 63 [2024-11-07 18:55:10,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:10,942 INFO L225 Difference]: With dead ends: 5035 [2024-11-07 18:55:10,942 INFO L226 Difference]: Without dead ends: 5035 [2024-11-07 18:55:10,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 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 18:55:10,943 INFO L432 NwaCegarLoop]: 864 mSDtfsCounter, 1606 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 1473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:10,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 1082 Invalid, 1473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-07 18:55:10,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5035 states. [2024-11-07 18:55:10,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5035 to 4895. [2024-11-07 18:55:10,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4895 states, 4119 states have (on average 1.7310026705511046) internal successors, (7130), 4852 states have internal predecessors, (7130), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-07 18:55:10,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4895 states to 4895 states and 7216 transitions. [2024-11-07 18:55:10,987 INFO L78 Accepts]: Start accepts. Automaton has 4895 states and 7216 transitions. Word has length 63 [2024-11-07 18:55:10,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:10,987 INFO L471 AbstractCegarLoop]: Abstraction has 4895 states and 7216 transitions. [2024-11-07 18:55:10,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 21.0) internal successors, (63), 4 states have internal predecessors, (63), 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 18:55:10,987 INFO L276 IsEmpty]: Start isEmpty. Operand 4895 states and 7216 transitions. [2024-11-07 18:55:10,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-07 18:55:10,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:10,988 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 18:55:10,995 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 (26)] Ended with exit code 0 [2024-11-07 18:55:11,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 18:55:11,188 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:11,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:11,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1551615488, now seen corresponding path program 1 times [2024-11-07 18:55:11,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:11,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957675098] [2024-11-07 18:55:11,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:11,189 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 18:55:11,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:11,191 INFO L229 MonitoredProcess]: Starting monitored process 27 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 18:55:11,192 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 (27)] Waiting until timeout for monitored process [2024-11-07 18:55:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:11,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 18:55:11,416 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:11,420 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 18:55:11,434 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 18:55:11,448 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 18:55:11,455 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 18:55:11,455 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:55:11,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:11,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957675098] [2024-11-07 18:55:11,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957675098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:55:11,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:55:11,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:55:11,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121409730] [2024-11-07 18:55:11,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:55:11,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 18:55:11,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:11,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 18:55:11,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:55:11,457 INFO L87 Difference]: Start difference. First operand 4895 states and 7216 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 18:55:13,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:13,711 INFO L93 Difference]: Finished difference Result 4894 states and 7213 transitions. [2024-11-07 18:55:13,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 18:55:13,711 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 68 [2024-11-07 18:55:13,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:13,715 INFO L225 Difference]: With dead ends: 4894 [2024-11-07 18:55:13,715 INFO L226 Difference]: Without dead ends: 4894 [2024-11-07 18:55:13,715 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 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 18:55:13,715 INFO L432 NwaCegarLoop]: 1935 mSDtfsCounter, 2 mSDsluCounter, 3257 mSDsCounter, 0 mSdLazyCounter, 2555 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5192 SdHoareTripleChecker+Invalid, 2556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:13,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5192 Invalid, 2556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2555 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 18:55:13,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2024-11-07 18:55:13,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 4894. [2024-11-07 18:55:13,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4894 states, 4119 states have (on average 1.7302743384316581) internal successors, (7127), 4851 states have internal predecessors, (7127), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-07 18:55:13,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4894 states to 4894 states and 7213 transitions. [2024-11-07 18:55:13,742 INFO L78 Accepts]: Start accepts. Automaton has 4894 states and 7213 transitions. Word has length 68 [2024-11-07 18:55:13,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:13,742 INFO L471 AbstractCegarLoop]: Abstraction has 4894 states and 7213 transitions. [2024-11-07 18:55:13,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 18:55:13,742 INFO L276 IsEmpty]: Start isEmpty. Operand 4894 states and 7213 transitions. [2024-11-07 18:55:13,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-07 18:55:13,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:13,742 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 18:55:13,749 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 (27)] Ended with exit code 0 [2024-11-07 18:55:13,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /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 18:55:13,943 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:13,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:13,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1551615487, now seen corresponding path program 1 times [2024-11-07 18:55:13,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:13,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652537187] [2024-11-07 18:55:13,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:13,943 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 18:55:13,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:13,945 INFO L229 MonitoredProcess]: Starting monitored process 28 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 18:55:13,947 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 (28)] Waiting until timeout for monitored process [2024-11-07 18:55:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:14,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-07 18:55:14,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:14,176 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 18:55:14,184 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 18:55:14,188 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 18:55:14,214 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 18:55:14,223 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 18:55:14,223 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:55:14,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:14,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652537187] [2024-11-07 18:55:14,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652537187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:55:14,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:55:14,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:55:14,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531954286] [2024-11-07 18:55:14,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:55:14,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 18:55:14,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:14,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 18:55:14,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 18:55:14,223 INFO L87 Difference]: Start difference. First operand 4894 states and 7213 transitions. Second operand has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 18:55:17,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:17,291 INFO L93 Difference]: Finished difference Result 4893 states and 7210 transitions. [2024-11-07 18:55:17,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 18:55:17,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 68 [2024-11-07 18:55:17,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:17,295 INFO L225 Difference]: With dead ends: 4893 [2024-11-07 18:55:17,295 INFO L226 Difference]: Without dead ends: 4893 [2024-11-07 18:55:17,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 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 18:55:17,295 INFO L432 NwaCegarLoop]: 1935 mSDtfsCounter, 1 mSDsluCounter, 3223 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5158 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:17,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5158 Invalid, 2587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2586 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-07 18:55:17,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2024-11-07 18:55:17,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 4893. [2024-11-07 18:55:17,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4893 states, 4116 states have (on average 1.7308066083576288) internal successors, (7124), 4850 states have internal predecessors, (7124), 43 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (43), 40 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-07 18:55:17,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4893 states to 4893 states and 7210 transitions. [2024-11-07 18:55:17,322 INFO L78 Accepts]: Start accepts. Automaton has 4893 states and 7210 transitions. Word has length 68 [2024-11-07 18:55:17,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:17,322 INFO L471 AbstractCegarLoop]: Abstraction has 4893 states and 7210 transitions. [2024-11-07 18:55:17,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.0) internal successors, (68), 5 states have internal predecessors, (68), 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 18:55:17,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4893 states and 7210 transitions. [2024-11-07 18:55:17,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-07 18:55:17,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:17,323 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:55:17,329 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 (28)] Forceful destruction successful, exit code 0 [2024-11-07 18:55:17,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /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 18:55:17,523 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:17,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:17,524 INFO L85 PathProgramCache]: Analyzing trace with hash 59598503, now seen corresponding path program 1 times [2024-11-07 18:55:17,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:17,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647696493] [2024-11-07 18:55:17,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:17,524 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 18:55:17,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:17,526 INFO L229 MonitoredProcess]: Starting monitored process 29 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 18:55:17,528 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 (29)] Waiting until timeout for monitored process [2024-11-07 18:55:17,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:17,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 18:55:17,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:17,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 18:55:17,774 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 18:55:17,774 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:17,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647696493] [2024-11-07 18:55:17,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647696493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 18:55:17,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 18:55:17,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 18:55:17,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186134266] [2024-11-07 18:55:17,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 18:55:17,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 18:55:17,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:17,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 18:55:17,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 18:55:17,775 INFO L87 Difference]: Start difference. First operand 4893 states and 7210 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 18:55:17,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:17,812 INFO L93 Difference]: Finished difference Result 4896 states and 7218 transitions. [2024-11-07 18:55:17,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 18:55:17,812 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 76 [2024-11-07 18:55:17,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:17,818 INFO L225 Difference]: With dead ends: 4896 [2024-11-07 18:55:17,818 INFO L226 Difference]: Without dead ends: 4896 [2024-11-07 18:55:17,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 73 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 18:55:17,819 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 0 mSDsluCounter, 3860 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5794 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 18:55:17,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5794 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 18:55:17,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4896 states. [2024-11-07 18:55:17,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4896 to 4896. [2024-11-07 18:55:17,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4896 states, 4118 states have (on average 1.73069451189898) internal successors, (7127), 4853 states have internal predecessors, (7127), 43 states have call successors, (43), 3 states have call predecessors, (43), 4 states have return successors, (48), 40 states have call predecessors, (48), 43 states have call successors, (48) [2024-11-07 18:55:17,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4896 states to 4896 states and 7218 transitions. [2024-11-07 18:55:17,852 INFO L78 Accepts]: Start accepts. Automaton has 4896 states and 7218 transitions. Word has length 76 [2024-11-07 18:55:17,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:17,852 INFO L471 AbstractCegarLoop]: Abstraction has 4896 states and 7218 transitions. [2024-11-07 18:55:17,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 18:55:17,852 INFO L276 IsEmpty]: Start isEmpty. Operand 4896 states and 7218 transitions. [2024-11-07 18:55:17,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 18:55:17,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:17,852 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:55:17,861 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 (29)] Ended with exit code 0 [2024-11-07 18:55:18,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /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 18:55:18,053 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:18,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:18,053 INFO L85 PathProgramCache]: Analyzing trace with hash 980722980, now seen corresponding path program 1 times [2024-11-07 18:55:18,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:18,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178788799] [2024-11-07 18:55:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 18:55:18,054 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 18:55:18,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:18,055 INFO L229 MonitoredProcess]: Starting monitored process 30 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 18:55:18,056 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 (30)] Waiting until timeout for monitored process [2024-11-07 18:55:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 18:55:18,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 18:55:18,302 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:18,319 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 18:55:18,319 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:55:18,363 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 18:55:18,363 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:18,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178788799] [2024-11-07 18:55:18,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [178788799] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 18:55:18,363 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 18:55:18,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-07 18:55:18,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039048242] [2024-11-07 18:55:18,363 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 18:55:18,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 18:55:18,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:18,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 18:55:18,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 18:55:18,364 INFO L87 Difference]: Start difference. First operand 4896 states and 7218 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 18:55:18,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:18,505 INFO L93 Difference]: Finished difference Result 4908 states and 7239 transitions. [2024-11-07 18:55:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 18:55:18,506 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 18:55:18,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:18,513 INFO L225 Difference]: With dead ends: 4908 [2024-11-07 18:55:18,513 INFO L226 Difference]: Without dead ends: 4908 [2024-11-07 18:55:18,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-07 18:55:18,513 INFO L432 NwaCegarLoop]: 1933 mSDtfsCounter, 5 mSDsluCounter, 11561 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13494 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:18,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13494 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 18:55:18,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4908 states. [2024-11-07 18:55:18,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4908 to 4906. [2024-11-07 18:55:18,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4906 states, 4127 states have (on average 1.7305548824812211) internal successors, (7142), 4862 states have internal predecessors, (7142), 43 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (48), 40 states have call predecessors, (48), 43 states have call successors, (48) [2024-11-07 18:55:18,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4906 states to 4906 states and 7233 transitions. [2024-11-07 18:55:18,550 INFO L78 Accepts]: Start accepts. Automaton has 4906 states and 7233 transitions. Word has length 77 [2024-11-07 18:55:18,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:18,550 INFO L471 AbstractCegarLoop]: Abstraction has 4906 states and 7233 transitions. [2024-11-07 18:55:18,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 18:55:18,550 INFO L276 IsEmpty]: Start isEmpty. Operand 4906 states and 7233 transitions. [2024-11-07 18:55:18,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 18:55:18,550 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:18,551 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:55:18,557 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 (30)] Ended with exit code 0 [2024-11-07 18:55:18,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /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 18:55:18,751 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:18,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:18,752 INFO L85 PathProgramCache]: Analyzing trace with hash 581410279, now seen corresponding path program 2 times [2024-11-07 18:55:18,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:18,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [939032290] [2024-11-07 18:55:18,752 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 18:55:18,752 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 18:55:18,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:18,754 INFO L229 MonitoredProcess]: Starting monitored process 31 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 18:55:18,756 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 (31)] Waiting until timeout for monitored process [2024-11-07 18:55:19,164 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-07 18:55:19,164 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 18:55:19,174 INFO L255 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-07 18:55:19,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:19,225 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 18:55:19,225 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:55:19,325 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 18:55:19,325 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:19,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [939032290] [2024-11-07 18:55:19,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [939032290] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 18:55:19,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 18:55:19,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-07 18:55:19,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356878405] [2024-11-07 18:55:19,326 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 18:55:19,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 18:55:19,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:19,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 18:55:19,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2024-11-07 18:55:19,326 INFO L87 Difference]: Start difference. First operand 4906 states and 7233 transitions. Second operand has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 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 18:55:19,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:19,635 INFO L93 Difference]: Finished difference Result 4921 states and 7259 transitions. [2024-11-07 18:55:19,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-07 18:55:19,637 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 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 80 [2024-11-07 18:55:19,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:19,644 INFO L225 Difference]: With dead ends: 4921 [2024-11-07 18:55:19,644 INFO L226 Difference]: Without dead ends: 4917 [2024-11-07 18:55:19,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2024-11-07 18:55:19,645 INFO L432 NwaCegarLoop]: 1933 mSDtfsCounter, 9 mSDsluCounter, 15426 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 17359 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:19,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 17359 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 18:55:19,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2024-11-07 18:55:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4915. [2024-11-07 18:55:19,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4915 states, 4136 states have (on average 1.7296905222437138) internal successors, (7154), 4871 states have internal predecessors, (7154), 43 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (48), 40 states have call predecessors, (48), 43 states have call successors, (48) [2024-11-07 18:55:19,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4915 states to 4915 states and 7245 transitions. [2024-11-07 18:55:19,677 INFO L78 Accepts]: Start accepts. Automaton has 4915 states and 7245 transitions. Word has length 80 [2024-11-07 18:55:19,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:19,678 INFO L471 AbstractCegarLoop]: Abstraction has 4915 states and 7245 transitions. [2024-11-07 18:55:19,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.071428571428571) internal successors, (85), 14 states have internal predecessors, (85), 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 18:55:19,678 INFO L276 IsEmpty]: Start isEmpty. Operand 4915 states and 7245 transitions. [2024-11-07 18:55:19,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-07 18:55:19,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:19,678 INFO L215 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:55:19,686 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 (31)] Ended with exit code 0 [2024-11-07 18:55:19,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /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 18:55:19,879 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:19,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:19,879 INFO L85 PathProgramCache]: Analyzing trace with hash 901932231, now seen corresponding path program 3 times [2024-11-07 18:55:19,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:19,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572948725] [2024-11-07 18:55:19,880 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 18:55:19,880 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 18:55:19,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:19,881 INFO L229 MonitoredProcess]: Starting monitored process 32 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 18:55:19,882 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 (32)] Waiting until timeout for monitored process [2024-11-07 18:55:20,439 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-11-07 18:55:20,440 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 18:55:20,450 INFO L255 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 18:55:20,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:20,555 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 18:55:20,555 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:55:20,873 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 18:55:20,873 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:20,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [572948725] [2024-11-07 18:55:20,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [572948725] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 18:55:20,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 18:55:20,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2024-11-07 18:55:20,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934482996] [2024-11-07 18:55:20,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 18:55:20,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-07 18:55:20,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:20,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-07 18:55:20,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2024-11-07 18:55:20,875 INFO L87 Difference]: Start difference. First operand 4915 states and 7245 transitions. Second operand has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 26 states have internal predecessors, (97), 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 18:55:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:21,973 INFO L93 Difference]: Finished difference Result 4939 states and 7284 transitions. [2024-11-07 18:55:21,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-07 18:55:21,974 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 26 states have internal predecessors, (97), 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 86 [2024-11-07 18:55:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:21,980 INFO L225 Difference]: With dead ends: 4939 [2024-11-07 18:55:21,980 INFO L226 Difference]: Without dead ends: 4933 [2024-11-07 18:55:21,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=728, Invalid=1434, Unknown=0, NotChecked=0, Total=2162 [2024-11-07 18:55:21,981 INFO L432 NwaCegarLoop]: 1934 mSDtfsCounter, 14 mSDsluCounter, 27003 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 28937 SdHoareTripleChecker+Invalid, 657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:21,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 28937 Invalid, 657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 18:55:21,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4933 states. [2024-11-07 18:55:22,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4933 to 4933. [2024-11-07 18:55:22,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4933 states, 4154 states have (on average 1.7277323062108811) internal successors, (7177), 4889 states have internal predecessors, (7177), 43 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (48), 40 states have call predecessors, (48), 43 states have call successors, (48) [2024-11-07 18:55:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4933 states to 4933 states and 7268 transitions. [2024-11-07 18:55:22,013 INFO L78 Accepts]: Start accepts. Automaton has 4933 states and 7268 transitions. Word has length 86 [2024-11-07 18:55:22,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:22,013 INFO L471 AbstractCegarLoop]: Abstraction has 4933 states and 7268 transitions. [2024-11-07 18:55:22,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.730769230769231) internal successors, (97), 26 states have internal predecessors, (97), 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 18:55:22,013 INFO L276 IsEmpty]: Start isEmpty. Operand 4933 states and 7268 transitions. [2024-11-07 18:55:22,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-07 18:55:22,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:22,013 INFO L215 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:55:22,022 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 (32)] Ended with exit code 0 [2024-11-07 18:55:22,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /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 18:55:22,217 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:22,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:22,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1368655225, now seen corresponding path program 4 times [2024-11-07 18:55:22,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:22,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483852538] [2024-11-07 18:55:22,218 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 18:55:22,218 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 18:55:22,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:22,220 INFO L229 MonitoredProcess]: Starting monitored process 33 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 18:55:22,221 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 (33)] Waiting until timeout for monitored process [2024-11-07 18:55:22,629 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 18:55:22,630 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 18:55:22,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-07 18:55:22,644 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:22,914 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 18:55:22,914 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:55:23,809 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 18:55:23,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:23,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483852538] [2024-11-07 18:55:23,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483852538] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 18:55:23,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 18:55:23,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2024-11-07 18:55:23,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735249216] [2024-11-07 18:55:23,810 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 18:55:23,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-07 18:55:23,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 18:55:23,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-07 18:55:23,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2024-11-07 18:55:23,812 INFO L87 Difference]: Start difference. First operand 4933 states and 7268 transitions. Second operand has 50 states, 50 states have (on average 2.42) internal successors, (121), 50 states have internal predecessors, (121), 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 18:55:27,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 18:55:27,592 INFO L93 Difference]: Finished difference Result 4973 states and 7344 transitions. [2024-11-07 18:55:27,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2024-11-07 18:55:27,593 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.42) internal successors, (121), 50 states have internal predecessors, (121), 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 98 [2024-11-07 18:55:27,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 18:55:27,600 INFO L225 Difference]: With dead ends: 4973 [2024-11-07 18:55:27,600 INFO L226 Difference]: Without dead ends: 4969 [2024-11-07 18:55:27,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2713, Invalid=5843, Unknown=0, NotChecked=0, Total=8556 [2024-11-07 18:55:27,602 INFO L432 NwaCegarLoop]: 1933 mSDtfsCounter, 27 mSDsluCounter, 54000 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 55933 SdHoareTripleChecker+Invalid, 2065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 18:55:27,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 55933 Invalid, 2065 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 18:55:27,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4969 states. [2024-11-07 18:55:27,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4969 to 4967. [2024-11-07 18:55:27,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4967 states, 4188 states have (on average 1.7246895893027698) internal successors, (7223), 4923 states have internal predecessors, (7223), 43 states have call successors, (43), 4 states have call predecessors, (43), 5 states have return successors, (48), 40 states have call predecessors, (48), 43 states have call successors, (48) [2024-11-07 18:55:27,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4967 states to 4967 states and 7314 transitions. [2024-11-07 18:55:27,637 INFO L78 Accepts]: Start accepts. Automaton has 4967 states and 7314 transitions. Word has length 98 [2024-11-07 18:55:27,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 18:55:27,637 INFO L471 AbstractCegarLoop]: Abstraction has 4967 states and 7314 transitions. [2024-11-07 18:55:27,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.42) internal successors, (121), 50 states have internal predecessors, (121), 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 18:55:27,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4967 states and 7314 transitions. [2024-11-07 18:55:27,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-07 18:55:27,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 18:55:27,638 INFO L215 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 18:55:27,649 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 (33)] Ended with exit code 0 [2024-11-07 18:55:27,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /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 18:55:27,839 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 1088 more)] === [2024-11-07 18:55:27,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 18:55:27,839 INFO L85 PathProgramCache]: Analyzing trace with hash 623928935, now seen corresponding path program 5 times [2024-11-07 18:55:27,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 18:55:27,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357708426] [2024-11-07 18:55:27,840 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 18:55:27,840 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 18:55:27,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 18:55:27,842 INFO L229 MonitoredProcess]: Starting monitored process 34 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 18:55:27,843 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 (34)] Waiting until timeout for monitored process [2024-11-07 18:55:28,874 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2024-11-07 18:55:28,875 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 18:55:28,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-07 18:55:28,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 18:55:28,902 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 18:55:28,974 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2024-11-07 18:55:28,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2024-11-07 18:55:28,990 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 18:55:29,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2024-11-07 18:55:29,589 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2024-11-07 18:55:29,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2024-11-07 18:55:29,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2024-11-07 18:55:29,631 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 18:55:29,631 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 18:55:29,855 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2589 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (select (select (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_2589) |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 18:55:29,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 18:55:29,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357708426] [2024-11-07 18:55:29,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1357708426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 18:55:29,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1965650227] [2024-11-07 18:55:29,856 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-07 18:55:29,856 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-07 18:55:29,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-07 18:55:29,858 INFO L229 MonitoredProcess]: Starting monitored process 35 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 18:55:29,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process