./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:33:33,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:33:33,240 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-17 11:33:33,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:33:33,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:33:33,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:33:33,264 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:33:33,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:33:33,265 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:33:33,265 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:33:33,266 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:33:33,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:33:33,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:33:33,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:33:33,266 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:33:33,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:33:33,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:33:33,267 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:33:33,267 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:33:33,267 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:33:33,267 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:33:33,267 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:33:33,267 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:33:33,267 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:33:33,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:33:33,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:33:33,267 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:33:33,268 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:33:33,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:33:33,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:33:33,268 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/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-memcleanup) ) 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 -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2025-03-17 11:33:33,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:33:33,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:33:33,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:33:33,502 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:33:33,502 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:33:33,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2025-03-17 11:33:34,632 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8693fe17d/a394997623514e76a1d4dc60dbf5f4eb/FLAG235b619b7 [2025-03-17 11:33:34,934 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:33:34,935 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2025-03-17 11:33:34,951 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8693fe17d/a394997623514e76a1d4dc60dbf5f4eb/FLAG235b619b7 [2025-03-17 11:33:35,201 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8693fe17d/a394997623514e76a1d4dc60dbf5f4eb [2025-03-17 11:33:35,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:33:35,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:33:35,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:33:35,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:33:35,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:33:35,208 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:33:35" (1/1) ... [2025-03-17 11:33:35,209 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11a4544d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:35, skipping insertion in model container [2025-03-17 11:33:35,209 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:33:35" (1/1) ... [2025-03-17 11:33:35,246 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:33:35,535 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,556 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,559 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,560 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,564 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,595 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,595 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,600 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,601 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,602 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,606 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,607 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,609 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,610 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,612 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:35,620 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:33:35,635 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) [2025-03-17 11:33:35,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@72392f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:35, skipping insertion in model container [2025-03-17 11:33:35,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:33:35,637 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-17 11:33:35,639 INFO L158 Benchmark]: Toolchain (without parser) took 434.68ms. Allocated memory is still 167.8MB. Free memory was 131.4MB in the beginning and 111.8MB in the end (delta: 19.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:33:35,642 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:33:35,642 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.39ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 111.8MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:33:35,642 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 226.5MB. Free memory is still 147.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 432.39ms. Allocated memory is still 167.8MB. Free memory was 130.9MB in the beginning and 111.8MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 831]: 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/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:33:37,271 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:33:37,353 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-17 11:33:37,358 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:33:37,361 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:33:37,378 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:33:37,379 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:33:37,379 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:33:37,379 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:33:37,379 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:33:37,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:33:37,379 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:33:37,379 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:33:37,379 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:33:37,379 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:33:37,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:33:37,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:33:37,381 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:33:37,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:33:37,381 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:33:37,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:33:37,382 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:33:37,382 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:33:37,382 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:33:37,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:33:37,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:33:37,383 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:33:37,383 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 11:33:37,383 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 11:33:37,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:33:37,383 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:33:37,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:33:37,383 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:33:37,383 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:33:37,384 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:33:37,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:33:37,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:33:37,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:33:37,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:33:37,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:33:37,384 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:33:37,384 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 11:33:37,384 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 11:33:37,384 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:33:37,385 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:33:37,385 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:33:37,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:33:37,385 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/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-memcleanup) ) 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 -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2025-03-17 11:33:37,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:33:37,642 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:33:37,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:33:37,645 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:33:37,646 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:33:37,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2025-03-17 11:33:38,782 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b25f471f7/84c61a77ce644009a027bbbf26d65e63/FLAG31c11235d [2025-03-17 11:33:39,066 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:33:39,067 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test2-2.i [2025-03-17 11:33:39,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b25f471f7/84c61a77ce644009a027bbbf26d65e63/FLAG31c11235d [2025-03-17 11:33:39,363 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b25f471f7/84c61a77ce644009a027bbbf26d65e63 [2025-03-17 11:33:39,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:33:39,366 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:33:39,367 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:33:39,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:33:39,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:33:39,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:39,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@246151a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39, skipping insertion in model container [2025-03-17 11:33:39,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:39,411 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:33:39,647 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,678 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,681 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,683 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,689 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,716 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,716 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,719 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,720 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,721 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,723 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,725 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,726 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,726 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,729 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:33:39,746 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-17 11:33:39,757 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:33:39,781 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,794 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,795 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,797 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,800 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,814 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,814 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,815 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,815 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,816 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,822 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,822 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,823 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,823 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,832 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-17 11:33:39,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:33:39,838 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:33:39,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:33:39,956 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:33:39,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39 WrapperNode [2025-03-17 11:33:39,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:33:39,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:33:39,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:33:39,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:33:39,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:39,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:40,028 INFO L138 Inliner]: procedures = 210, calls = 273, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 995 [2025-03-17 11:33:40,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:33:40,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:33:40,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:33:40,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:33:40,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:40,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:40,071 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:40,122 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 34, 218]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 4, 50]. [2025-03-17 11:33:40,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:40,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:40,156 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:40,157 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:40,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:40,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:40,170 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:33:40,171 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:33:40,171 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:33:40,171 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:33:40,172 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (1/1) ... [2025-03-17 11:33:40,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:33:40,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:33:40,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 11:33:40,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 11:33:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-17 11:33:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-17 11:33:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-03-17 11:33:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-17 11:33:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-17 11:33:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-17 11:33:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 11:33:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 11:33:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-17 11:33:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 11:33:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 11:33:40,213 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-17 11:33:40,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 11:33:40,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:33:40,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:33:40,363 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:33:40,364 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:33:46,855 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L812: call ULTIMATE.dealloc(main_~#i~0#1.base, main_~#i~0#1.offset);havoc main_~#i~0#1.base, main_~#i~0#1.offset; [2025-03-17 11:33:46,900 INFO L? ?]: Removed 134 outVars from TransFormulas that were not future-live. [2025-03-17 11:33:46,900 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:33:46,911 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:33:46,911 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:33:46,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:33:46 BoogieIcfgContainer [2025-03-17 11:33:46,912 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:33:46,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:33:46,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:33:46,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:33:46,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:33:39" (1/3) ... [2025-03-17 11:33:46,917 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac182ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:33:46, skipping insertion in model container [2025-03-17 11:33:46,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:39" (2/3) ... [2025-03-17 11:33:46,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac182ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:33:46, skipping insertion in model container [2025-03-17 11:33:46,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:33:46" (3/3) ... [2025-03-17 11:33:46,919 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test2-2.i [2025-03-17 11:33:46,930 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:33:46,932 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_nondet_test2-2.i that has 4 procedures, 200 locations, 1 initial locations, 36 loop locations, and 2 error locations. [2025-03-17 11:33:46,966 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:33:46,973 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;@33929282, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:33:46,974 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 11:33:46,976 INFO L276 IsEmpty]: Start isEmpty. Operand has 192 states, 185 states have (on average 1.664864864864865) internal successors, (308), 187 states have internal predecessors, (308), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:33:46,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 11:33:46,981 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:33:46,981 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 11:33:46,982 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:33:46,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:33:46,985 INFO L85 PathProgramCache]: Analyzing trace with hash 353103, now seen corresponding path program 1 times [2025-03-17 11:33:46,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:33:46,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [241864119] [2025-03-17 11:33:46,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:33:46,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:33:46,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:33:46,994 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:33:46,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-17 11:33:47,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 11:33:47,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 11:33:47,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:33:47,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:33:47,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:33:47,114 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:33:47,197 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_18| (_ BitVec 32))) (and (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18|)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_18| (_ bv0 1)) |c_#valid|))) is different from true [2025-03-17 11:33:47,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:33:47,201 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:33:47,201 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:33:47,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241864119] [2025-03-17 11:33:47,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241864119] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:33:47,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:33:47,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:33:47,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508742064] [2025-03-17 11:33:47,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:33:47,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:33:47,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:33:47,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:33:47,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-03-17 11:33:47,226 INFO L87 Difference]: Start difference. First operand has 192 states, 185 states have (on average 1.664864864864865) internal successors, (308), 187 states have internal predecessors, (308), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.0) 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) [2025-03-17 11:33:51,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:33:51,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:33:51,637 INFO L93 Difference]: Finished difference Result 286 states and 375 transitions. [2025-03-17 11:33:51,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:33:51,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) 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 [2025-03-17 11:33:51,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:33:51,649 INFO L225 Difference]: With dead ends: 286 [2025-03-17 11:33:51,650 INFO L226 Difference]: Without dead ends: 283 [2025-03-17 11:33:51,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-03-17 11:33:51,653 INFO L435 NwaCegarLoop]: 241 mSDtfsCounter, 122 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 376 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:33:51,654 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 470 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 1 Unknown, 376 Unchecked, 4.4s Time] [2025-03-17 11:33:51,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2025-03-17 11:33:51,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 189. [2025-03-17 11:33:51,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 183 states have (on average 1.3114754098360655) internal successors, (240), 184 states have internal predecessors, (240), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:33:51,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 246 transitions. [2025-03-17 11:33:51,689 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 246 transitions. Word has length 3 [2025-03-17 11:33:51,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:33:51,690 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 246 transitions. [2025-03-17 11:33:51,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) 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) [2025-03-17 11:33:51,690 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 246 transitions. [2025-03-17 11:33:51,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 11:33:51,690 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:33:51,690 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:33:51,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-17 11:33:51,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:33:51,891 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:33:51,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:33:51,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1879289166, now seen corresponding path program 1 times [2025-03-17 11:33:51,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:33:51,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131194729] [2025-03-17 11:33:51,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:33:51,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:33:51,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:33:51,894 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:33:51,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-17 11:33:52,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 11:33:52,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 11:33:52,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:33:52,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:33:52,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:33:52,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:33:52,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:33:52,121 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:33:52,121 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:33:52,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131194729] [2025-03-17 11:33:52,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131194729] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:33:52,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:33:52,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:33:52,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532567026] [2025-03-17 11:33:52,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:33:52,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:33:52,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:33:52,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:33:52,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:33:52,123 INFO L87 Difference]: Start difference. First operand 189 states and 246 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:33:52,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:33:52,731 INFO L93 Difference]: Finished difference Result 306 states and 398 transitions. [2025-03-17 11:33:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:33:52,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-03-17 11:33:52,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:33:52,734 INFO L225 Difference]: With dead ends: 306 [2025-03-17 11:33:52,734 INFO L226 Difference]: Without dead ends: 306 [2025-03-17 11:33:52,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:33:52,735 INFO L435 NwaCegarLoop]: 234 mSDtfsCounter, 143 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-17 11:33:52,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 453 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-17 11:33:52,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2025-03-17 11:33:52,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 274. [2025-03-17 11:33:52,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 268 states have (on average 1.3134328358208955) internal successors, (352), 269 states have internal predecessors, (352), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:33:52,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 358 transitions. [2025-03-17 11:33:52,750 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 358 transitions. Word has length 12 [2025-03-17 11:33:52,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:33:52,750 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 358 transitions. [2025-03-17 11:33:52,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:33:52,751 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 358 transitions. [2025-03-17 11:33:52,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-17 11:33:52,751 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:33:52,751 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:33:52,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-17 11:33:52,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:33:52,952 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:33:52,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:33:52,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1879318957, now seen corresponding path program 1 times [2025-03-17 11:33:52,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:33:52,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1776997664] [2025-03-17 11:33:52,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:33:52,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:33:52,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:33:52,955 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:33:52,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-17 11:33:53,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 11:33:53,066 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 11:33:53,066 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:33:53,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:33:53,068 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:33:53,070 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:33:53,190 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~#i~0#1.base_19| (_ BitVec 32))) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_19| (_ bv0 1))) (= (_ bv0 1) (select |c_ULTIMATE.start_main_old_#valid#1| |v_ULTIMATE.start_main_~#i~0#1.base_19|)))) is different from true [2025-03-17 11:33:53,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:33:53,191 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:33:53,191 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:33:53,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776997664] [2025-03-17 11:33:53,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776997664] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:33:53,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:33:53,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:33:53,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237889128] [2025-03-17 11:33:53,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:33:53,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:33:53,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:33:53,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:33:53,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-03-17 11:33:53,192 INFO L87 Difference]: Start difference. First operand 274 states and 358 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:33:57,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:33:57,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:33:57,452 INFO L93 Difference]: Finished difference Result 349 states and 454 transitions. [2025-03-17 11:33:57,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:33:57,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2025-03-17 11:33:57,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:33:57,458 INFO L225 Difference]: With dead ends: 349 [2025-03-17 11:33:57,459 INFO L226 Difference]: Without dead ends: 348 [2025-03-17 11:33:57,459 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-03-17 11:33:57,459 INFO L435 NwaCegarLoop]: 239 mSDtfsCounter, 88 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 345 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:33:57,459 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 467 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 1 Unknown, 345 Unchecked, 4.2s Time] [2025-03-17 11:33:57,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2025-03-17 11:33:57,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 321. [2025-03-17 11:33:57,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 315 states have (on average 1.3111111111111111) internal successors, (413), 316 states have internal predecessors, (413), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:33:57,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 419 transitions. [2025-03-17 11:33:57,473 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 419 transitions. Word has length 12 [2025-03-17 11:33:57,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:33:57,473 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 419 transitions. [2025-03-17 11:33:57,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:33:57,474 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 419 transitions. [2025-03-17 11:33:57,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-17 11:33:57,474 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:33:57,474 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:33:57,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-17 11:33:57,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:33:57,675 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:33:57,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:33:57,676 INFO L85 PathProgramCache]: Analyzing trace with hash 2103099587, now seen corresponding path program 1 times [2025-03-17 11:33:57,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:33:57,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [717282376] [2025-03-17 11:33:57,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:33:57,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:33:57,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:33:57,678 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:33:57,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-17 11:33:57,777 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-17 11:33:57,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-17 11:33:57,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:33:57,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:33:57,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:33:57,795 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:33:57,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:33:57,886 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:33:57,886 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:33:57,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717282376] [2025-03-17 11:33:57,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717282376] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:33:57,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:33:57,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:33:57,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963145750] [2025-03-17 11:33:57,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:33:57,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:33:57,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:33:57,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:33:57,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:33:57,888 INFO L87 Difference]: Start difference. First operand 321 states and 419 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2025-03-17 11:34:01,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:34:04,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:04,056 INFO L93 Difference]: Finished difference Result 355 states and 460 transitions. [2025-03-17 11:34:04,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:34:04,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2025-03-17 11:34:04,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:04,059 INFO L225 Difference]: With dead ends: 355 [2025-03-17 11:34:04,059 INFO L226 Difference]: Without dead ends: 351 [2025-03-17 11:34:04,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:34:04,060 INFO L435 NwaCegarLoop]: 265 mSDtfsCounter, 145 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:04,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 715 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2025-03-17 11:34:04,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2025-03-17 11:34:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 319. [2025-03-17 11:34:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 313 states have (on average 1.3099041533546325) internal successors, (410), 314 states have internal predecessors, (410), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:34:04,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 416 transitions. [2025-03-17 11:34:04,070 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 416 transitions. Word has length 21 [2025-03-17 11:34:04,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:04,071 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 416 transitions. [2025-03-17 11:34:04,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2025-03-17 11:34:04,071 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 416 transitions. [2025-03-17 11:34:04,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-17 11:34:04,071 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:04,072 INFO L218 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] [2025-03-17 11:34:04,079 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-17 11:34:04,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:04,273 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:04,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:04,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1639914501, now seen corresponding path program 1 times [2025-03-17 11:34:04,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:04,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2147417443] [2025-03-17 11:34:04,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:04,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:04,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:04,276 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:04,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-17 11:34:04,376 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 11:34:04,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 11:34:04,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:04,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:04,412 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:04,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:34:04,425 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:04,425 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:04,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147417443] [2025-03-17 11:34:04,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147417443] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:04,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:04,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:34:04,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454039307] [2025-03-17 11:34:04,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:04,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:34:04,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:04,426 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:34:04,426 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:34:04,426 INFO L87 Difference]: Start difference. First operand 319 states and 416 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:04,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:04,505 INFO L93 Difference]: Finished difference Result 379 states and 476 transitions. [2025-03-17 11:34:04,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:34:04,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2025-03-17 11:34:04,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:04,507 INFO L225 Difference]: With dead ends: 379 [2025-03-17 11:34:04,507 INFO L226 Difference]: Without dead ends: 379 [2025-03-17 11:34:04,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:34:04,507 INFO L435 NwaCegarLoop]: 226 mSDtfsCounter, 8 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:04,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 437 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:34:04,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2025-03-17 11:34:04,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2025-03-17 11:34:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 373 states have (on average 1.260053619302949) internal successors, (470), 374 states have internal predecessors, (470), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:34:04,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 476 transitions. [2025-03-17 11:34:04,514 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 476 transitions. Word has length 46 [2025-03-17 11:34:04,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:04,515 INFO L471 AbstractCegarLoop]: Abstraction has 379 states and 476 transitions. [2025-03-17 11:34:04,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:04,515 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 476 transitions. [2025-03-17 11:34:04,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-17 11:34:04,516 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:04,516 INFO L218 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] [2025-03-17 11:34:04,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-17 11:34:04,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:04,716 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:04,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:04,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1385177956, now seen corresponding path program 1 times [2025-03-17 11:34:04,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:04,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293808356] [2025-03-17 11:34:04,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:04,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:04,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:04,719 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:04,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-17 11:34:04,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 11:34:04,842 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 11:34:04,843 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:04,843 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:04,847 INFO L256 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:04,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:04,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:34:04,873 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:04,873 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:04,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293808356] [2025-03-17 11:34:04,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293808356] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:04,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:04,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:34:04,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454184456] [2025-03-17 11:34:04,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:04,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:04,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:04,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:04,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:04,874 INFO L87 Difference]: Start difference. First operand 379 states and 476 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:04,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:04,973 INFO L93 Difference]: Finished difference Result 328 states and 392 transitions. [2025-03-17 11:34:04,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:34:04,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2025-03-17 11:34:04,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:04,974 INFO L225 Difference]: With dead ends: 328 [2025-03-17 11:34:04,975 INFO L226 Difference]: Without dead ends: 328 [2025-03-17 11:34:04,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:34:04,975 INFO L435 NwaCegarLoop]: 214 mSDtfsCounter, 32 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:04,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 628 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:34:04,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2025-03-17 11:34:04,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2025-03-17 11:34:04,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 322 states have (on average 1.1987577639751552) internal successors, (386), 323 states have internal predecessors, (386), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:34:04,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 392 transitions. [2025-03-17 11:34:04,980 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 392 transitions. Word has length 46 [2025-03-17 11:34:04,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:04,981 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 392 transitions. [2025-03-17 11:34:04,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:04,981 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 392 transitions. [2025-03-17 11:34:04,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2025-03-17 11:34:04,981 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:04,982 INFO L218 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] [2025-03-17 11:34:04,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-17 11:34:05,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:05,182 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:05,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:05,183 INFO L85 PathProgramCache]: Analyzing trace with hash -698896907, now seen corresponding path program 1 times [2025-03-17 11:34:05,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:05,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [255982680] [2025-03-17 11:34:05,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:05,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:05,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:05,185 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:05,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-17 11:34:05,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 11:34:05,304 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 11:34:05,304 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:05,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:05,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 11:34:05,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:05,320 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:05,321 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:05,321 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:05,325 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 [2025-03-17 11:34:05,410 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:34:05,411 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 [2025-03-17 11:34:05,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:34:05,460 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:05,460 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:05,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255982680] [2025-03-17 11:34:05,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255982680] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:05,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:05,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:34:05,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945588107] [2025-03-17 11:34:05,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:05,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 11:34:05,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:05,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 11:34:05,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:34:05,461 INFO L87 Difference]: Start difference. First operand 328 states and 392 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:05,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:05,929 INFO L93 Difference]: Finished difference Result 330 states and 404 transitions. [2025-03-17 11:34:05,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:34:05,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2025-03-17 11:34:05,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:05,931 INFO L225 Difference]: With dead ends: 330 [2025-03-17 11:34:05,931 INFO L226 Difference]: Without dead ends: 327 [2025-03-17 11:34:05,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:34:05,931 INFO L435 NwaCegarLoop]: 228 mSDtfsCounter, 105 mSDsluCounter, 658 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 886 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:05,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 886 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 11:34:05,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2025-03-17 11:34:05,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 281. [2025-03-17 11:34:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 275 states have (on average 1.221818181818182) internal successors, (336), 276 states have internal predecessors, (336), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:34:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 342 transitions. [2025-03-17 11:34:05,938 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 342 transitions. Word has length 46 [2025-03-17 11:34:05,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:05,938 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 342 transitions. [2025-03-17 11:34:05,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:05,938 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 342 transitions. [2025-03-17 11:34:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-17 11:34:05,939 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:05,940 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:05,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-17 11:34:06,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:06,140 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:06,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:06,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1197922628, now seen corresponding path program 1 times [2025-03-17 11:34:06,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:06,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526124708] [2025-03-17 11:34:06,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:06,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:06,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:06,144 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:06,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-17 11:34:06,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-17 11:34:06,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-17 11:34:06,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:06,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:06,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:06,439 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:06,466 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:34:06,467 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:06,467 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:06,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526124708] [2025-03-17 11:34:06,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526124708] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:06,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:06,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:34:06,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434460314] [2025-03-17 11:34:06,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:06,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:34:06,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:06,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:34:06,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:34:06,470 INFO L87 Difference]: Start difference. First operand 281 states and 342 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:06,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:06,602 INFO L93 Difference]: Finished difference Result 321 states and 382 transitions. [2025-03-17 11:34:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:34:06,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2025-03-17 11:34:06,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:06,604 INFO L225 Difference]: With dead ends: 321 [2025-03-17 11:34:06,604 INFO L226 Difference]: Without dead ends: 321 [2025-03-17 11:34:06,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:34:06,605 INFO L435 NwaCegarLoop]: 215 mSDtfsCounter, 8 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:06,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 415 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:34:06,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2025-03-17 11:34:06,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2025-03-17 11:34:06,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 315 states have (on average 1.1936507936507936) internal successors, (376), 316 states have internal predecessors, (376), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:34:06,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 382 transitions. [2025-03-17 11:34:06,611 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 382 transitions. Word has length 81 [2025-03-17 11:34:06,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:06,612 INFO L471 AbstractCegarLoop]: Abstraction has 321 states and 382 transitions. [2025-03-17 11:34:06,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:06,612 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 382 transitions. [2025-03-17 11:34:06,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-03-17 11:34:06,615 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:06,615 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:06,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-17 11:34:06,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:06,816 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:06,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:06,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1635932131, now seen corresponding path program 1 times [2025-03-17 11:34:06,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:06,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762903507] [2025-03-17 11:34:06,817 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:06,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:06,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:06,819 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:06,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-17 11:34:06,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-03-17 11:34:07,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-03-17 11:34:07,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:07,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:07,107 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:34:07,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:07,317 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-17 11:34:07,317 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:07,318 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:07,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762903507] [2025-03-17 11:34:07,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762903507] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:07,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:07,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:34:07,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166378738] [2025-03-17 11:34:07,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:07,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:07,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:07,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:07,319 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:07,319 INFO L87 Difference]: Start difference. First operand 321 states and 382 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:11,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:34:15,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:34:17,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:17,706 INFO L93 Difference]: Finished difference Result 340 states and 416 transitions. [2025-03-17 11:34:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:34:17,709 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2025-03-17 11:34:17,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:17,711 INFO L225 Difference]: With dead ends: 340 [2025-03-17 11:34:17,711 INFO L226 Difference]: Without dead ends: 340 [2025-03-17 11:34:17,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:34:17,711 INFO L435 NwaCegarLoop]: 238 mSDtfsCounter, 407 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:17,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 392 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 88 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2025-03-17 11:34:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2025-03-17 11:34:17,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 272. [2025-03-17 11:34:17,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 266 states have (on average 1.2067669172932332) internal successors, (321), 267 states have internal predecessors, (321), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:34:17,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 327 transitions. [2025-03-17 11:34:17,718 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 327 transitions. Word has length 81 [2025-03-17 11:34:17,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:17,718 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 327 transitions. [2025-03-17 11:34:17,718 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:17,718 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 327 transitions. [2025-03-17 11:34:17,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-17 11:34:17,719 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:17,720 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:17,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-17 11:34:17,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:17,920 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:17,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:17,921 INFO L85 PathProgramCache]: Analyzing trace with hash -665225133, now seen corresponding path program 1 times [2025-03-17 11:34:17,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:17,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600256601] [2025-03-17 11:34:17,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:17,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:17,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:17,923 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:17,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-17 11:34:18,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-17 11:34:18,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-17 11:34:18,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:18,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:18,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:18,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:18,287 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-17 11:34:18,287 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:18,287 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:18,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600256601] [2025-03-17 11:34:18,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600256601] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:18,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:18,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:34:18,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941573528] [2025-03-17 11:34:18,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:18,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:18,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:18,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:18,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:18,288 INFO L87 Difference]: Start difference. First operand 272 states and 327 transitions. Second operand has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:18,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:18,383 INFO L93 Difference]: Finished difference Result 238 states and 271 transitions. [2025-03-17 11:34:18,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:34:18,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 90 [2025-03-17 11:34:18,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:18,384 INFO L225 Difference]: With dead ends: 238 [2025-03-17 11:34:18,384 INFO L226 Difference]: Without dead ends: 238 [2025-03-17 11:34:18,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:34:18,385 INFO L435 NwaCegarLoop]: 201 mSDtfsCounter, 32 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:18,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 589 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:34:18,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2025-03-17 11:34:18,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2025-03-17 11:34:18,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 232 states have (on average 1.1422413793103448) internal successors, (265), 233 states have internal predecessors, (265), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:34:18,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 271 transitions. [2025-03-17 11:34:18,389 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 271 transitions. Word has length 90 [2025-03-17 11:34:18,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:18,389 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 271 transitions. [2025-03-17 11:34:18,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:18,389 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 271 transitions. [2025-03-17 11:34:18,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-17 11:34:18,389 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:18,390 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:18,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-17 11:34:18,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:18,590 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:18,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:18,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1878948966, now seen corresponding path program 1 times [2025-03-17 11:34:18,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:18,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1549945967] [2025-03-17 11:34:18,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:18,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:18,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:18,593 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:18,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-17 11:34:18,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-17 11:34:18,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-17 11:34:18,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:18,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:18,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:34:18,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-03-17 11:34:18,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:18,966 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:18,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549945967] [2025-03-17 11:34:18,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549945967] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:18,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:18,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:34:18,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707547010] [2025-03-17 11:34:18,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:18,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:18,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:18,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:18,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:18,967 INFO L87 Difference]: Start difference. First operand 238 states and 271 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:23,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:34:27,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-17 11:34:29,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:29,504 INFO L93 Difference]: Finished difference Result 240 states and 273 transitions. [2025-03-17 11:34:29,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:34:29,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 90 [2025-03-17 11:34:29,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:29,507 INFO L225 Difference]: With dead ends: 240 [2025-03-17 11:34:29,507 INFO L226 Difference]: Without dead ends: 240 [2025-03-17 11:34:29,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:29,509 INFO L435 NwaCegarLoop]: 192 mSDtfsCounter, 199 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:29,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 386 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2025-03-17 11:34:29,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2025-03-17 11:34:29,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2025-03-17 11:34:29,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 233 states have (on average 1.1416309012875536) internal successors, (266), 234 states have internal predecessors, (266), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2025-03-17 11:34:29,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 272 transitions. [2025-03-17 11:34:29,513 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 272 transitions. Word has length 90 [2025-03-17 11:34:29,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:29,514 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 272 transitions. [2025-03-17 11:34:29,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:29,514 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 272 transitions. [2025-03-17 11:34:29,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-03-17 11:34:29,515 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:29,515 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:29,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-03-17 11:34:29,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:29,715 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:29,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:29,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1878919175, now seen corresponding path program 1 times [2025-03-17 11:34:29,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:29,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698141213] [2025-03-17 11:34:29,716 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:29,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:29,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:29,718 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:29,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-17 11:34:29,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-03-17 11:34:30,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-03-17 11:34:30,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:30,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:30,032 INFO L256 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:30,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:30,056 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 11:34:30,056 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:30,056 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:30,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698141213] [2025-03-17 11:34:30,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698141213] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:30,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:30,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:34:30,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099876638] [2025-03-17 11:34:30,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:30,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:30,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:30,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:30,058 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:30,058 INFO L87 Difference]: Start difference. First operand 239 states and 272 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:30,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:30,087 INFO L93 Difference]: Finished difference Result 242 states and 276 transitions. [2025-03-17 11:34:30,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:34:30,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 90 [2025-03-17 11:34:30,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:30,089 INFO L225 Difference]: With dead ends: 242 [2025-03-17 11:34:30,089 INFO L226 Difference]: Without dead ends: 242 [2025-03-17 11:34:30,089 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:30,089 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 0 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:30,090 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 653 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:34:30,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2025-03-17 11:34:30,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2025-03-17 11:34:30,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 235 states have (on average 1.1446808510638298) internal successors, (269), 237 states have internal predecessors, (269), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 11:34:30,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 276 transitions. [2025-03-17 11:34:30,094 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 276 transitions. Word has length 90 [2025-03-17 11:34:30,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:30,094 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 276 transitions. [2025-03-17 11:34:30,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:30,095 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 276 transitions. [2025-03-17 11:34:30,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-03-17 11:34:30,095 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:30,095 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:30,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-17 11:34:30,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:30,296 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:30,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:30,296 INFO L85 PathProgramCache]: Analyzing trace with hash 2036336317, now seen corresponding path program 1 times [2025-03-17 11:34:30,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:30,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1962330871] [2025-03-17 11:34:30,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:30,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:30,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:30,299 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:30,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-17 11:34:30,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-03-17 11:34:30,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-03-17 11:34:30,610 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:30,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:30,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:34:30,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:30,650 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-17 11:34:30,651 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:34:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-17 11:34:30,728 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:30,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962330871] [2025-03-17 11:34:30,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962330871] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:34:30,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:34:30,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-17 11:34:30,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558047329] [2025-03-17 11:34:30,728 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:34:30,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 11:34:30,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:30,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 11:34:30,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 11:34:30,729 INFO L87 Difference]: Start difference. First operand 242 states and 276 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:34:30,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:30,846 INFO L93 Difference]: Finished difference Result 253 states and 293 transitions. [2025-03-17 11:34:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:34:30,847 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 92 [2025-03-17 11:34:30,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:30,847 INFO L225 Difference]: With dead ends: 253 [2025-03-17 11:34:30,847 INFO L226 Difference]: Without dead ends: 253 [2025-03-17 11:34:30,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2025-03-17 11:34:30,848 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 4 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:30,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 867 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:34:30,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2025-03-17 11:34:30,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 251. [2025-03-17 11:34:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 243 states have (on average 1.1646090534979423) internal successors, (283), 245 states have internal predecessors, (283), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2025-03-17 11:34:30,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 291 transitions. [2025-03-17 11:34:30,852 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 291 transitions. Word has length 92 [2025-03-17 11:34:30,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:30,852 INFO L471 AbstractCegarLoop]: Abstraction has 251 states and 291 transitions. [2025-03-17 11:34:30,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:34:30,853 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 291 transitions. [2025-03-17 11:34:30,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-03-17 11:34:30,853 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:30,853 INFO L218 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:30,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-17 11:34:31,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:31,054 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:31,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:31,055 INFO L85 PathProgramCache]: Analyzing trace with hash -2129037575, now seen corresponding path program 2 times [2025-03-17 11:34:31,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:31,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426858426] [2025-03-17 11:34:31,055 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:34:31,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:31,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:31,057 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:31,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-17 11:34:31,290 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 96 statements into 2 equivalence classes. [2025-03-17 11:34:31,432 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 96 of 96 statements. [2025-03-17 11:34:31,432 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:34:31,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:31,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:34:31,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 11:34:31,516 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:34:31,651 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-17 11:34:31,651 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:31,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426858426] [2025-03-17 11:34:31,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426858426] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:34:31,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:34:31,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-17 11:34:31,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908357738] [2025-03-17 11:34:31,651 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:34:31,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:34:31,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:31,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:34:31,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:34:31,652 INFO L87 Difference]: Start difference. First operand 251 states and 291 transitions. Second operand has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:34:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:31,929 INFO L93 Difference]: Finished difference Result 259 states and 301 transitions. [2025-03-17 11:34:31,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 11:34:31,929 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 96 [2025-03-17 11:34:31,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:31,931 INFO L225 Difference]: With dead ends: 259 [2025-03-17 11:34:31,931 INFO L226 Difference]: Without dead ends: 257 [2025-03-17 11:34:31,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2025-03-17 11:34:31,931 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 5 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1302 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:31,932 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1302 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 11:34:31,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2025-03-17 11:34:31,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2025-03-17 11:34:31,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 247 states have (on average 1.1700404858299596) internal successors, (289), 249 states have internal predecessors, (289), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 11:34:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 296 transitions. [2025-03-17 11:34:31,937 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 296 transitions. Word has length 96 [2025-03-17 11:34:31,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:31,937 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 296 transitions. [2025-03-17 11:34:31,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.8) internal successors, (98), 10 states have internal predecessors, (98), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:34:31,937 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 296 transitions. [2025-03-17 11:34:31,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-17 11:34:31,938 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:31,938 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:31,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-17 11:34:32,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:32,138 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:32,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:32,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1939335929, now seen corresponding path program 3 times [2025-03-17 11:34:32,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:32,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1589334147] [2025-03-17 11:34:32,139 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:34:32,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:32,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:32,177 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:32,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-17 11:34:32,437 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 100 statements into 6 equivalence classes. [2025-03-17 11:34:32,549 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) and asserted 83 of 100 statements. [2025-03-17 11:34:32,549 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2025-03-17 11:34:32,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:32,558 INFO L256 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-17 11:34:32,561 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:32,967 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:32,968 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:32,968 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:32,969 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 [2025-03-17 11:34:33,040 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:34:33,041 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 [2025-03-17 11:34:33,065 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2025-03-17 11:34:33,065 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:33,066 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:33,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589334147] [2025-03-17 11:34:33,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589334147] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:33,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:33,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 11:34:33,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246674961] [2025-03-17 11:34:33,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:33,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:34:33,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:33,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:34:33,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:34:33,066 INFO L87 Difference]: Start difference. First operand 255 states and 296 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:33,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:33,348 INFO L93 Difference]: Finished difference Result 321 states and 369 transitions. [2025-03-17 11:34:33,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:34:33,349 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 100 [2025-03-17 11:34:33,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:33,350 INFO L225 Difference]: With dead ends: 321 [2025-03-17 11:34:33,350 INFO L226 Difference]: Without dead ends: 321 [2025-03-17 11:34:33,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-03-17 11:34:33,350 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 177 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 668 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:33,351 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 668 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 11:34:33,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2025-03-17 11:34:33,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 257. [2025-03-17 11:34:33,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 249 states have (on average 1.1686746987951808) internal successors, (291), 251 states have internal predecessors, (291), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 11:34:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 298 transitions. [2025-03-17 11:34:33,355 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 298 transitions. Word has length 100 [2025-03-17 11:34:33,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:33,355 INFO L471 AbstractCegarLoop]: Abstraction has 257 states and 298 transitions. [2025-03-17 11:34:33,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:33,355 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 298 transitions. [2025-03-17 11:34:33,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-17 11:34:33,356 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:33,356 INFO L218 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:33,366 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-17 11:34:33,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:33,557 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:33,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:33,557 INFO L85 PathProgramCache]: Analyzing trace with hash 554209353, now seen corresponding path program 1 times [2025-03-17 11:34:33,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:33,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1305266348] [2025-03-17 11:34:33,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:33,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:33,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:33,560 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:33,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-17 11:34:33,801 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-17 11:34:33,944 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-17 11:34:33,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:33,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:33,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 11:34:33,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:34,032 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 11:34:34,032 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:34:34,300 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 39 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-17 11:34:34,301 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:34,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305266348] [2025-03-17 11:34:34,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305266348] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:34:34,301 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:34:34,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-03-17 11:34:34,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282983260] [2025-03-17 11:34:34,301 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:34:34,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 11:34:34,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:34,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 11:34:34,302 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-03-17 11:34:34,302 INFO L87 Difference]: Start difference. First operand 257 states and 298 transitions. Second operand has 14 states, 14 states have (on average 9.357142857142858) internal successors, (131), 14 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:34:34,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:34,657 INFO L93 Difference]: Finished difference Result 269 states and 314 transitions. [2025-03-17 11:34:34,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-17 11:34:34,657 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.357142857142858) internal successors, (131), 14 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 133 [2025-03-17 11:34:34,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:34,658 INFO L225 Difference]: With dead ends: 269 [2025-03-17 11:34:34,658 INFO L226 Difference]: Without dead ends: 265 [2025-03-17 11:34:34,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2025-03-17 11:34:34,659 INFO L435 NwaCegarLoop]: 219 mSDtfsCounter, 8 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1306 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:34,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1306 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 11:34:34,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2025-03-17 11:34:34,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2025-03-17 11:34:34,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 255 states have (on average 1.1803921568627451) internal successors, (301), 257 states have internal predecessors, (301), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 11:34:34,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 308 transitions. [2025-03-17 11:34:34,663 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 308 transitions. Word has length 133 [2025-03-17 11:34:34,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:34,663 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 308 transitions. [2025-03-17 11:34:34,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.357142857142858) internal successors, (131), 14 states have internal predecessors, (131), 1 states have call successors, (2), 1 states have call predecessors, (2), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:34:34,663 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 308 transitions. [2025-03-17 11:34:34,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-17 11:34:34,664 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:34,664 INFO L218 NwaCegarLoop]: trace histogram [16, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:34,678 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-17 11:34:34,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:34,865 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:34,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:34,865 INFO L85 PathProgramCache]: Analyzing trace with hash -186521399, now seen corresponding path program 2 times [2025-03-17 11:34:34,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:34,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2142223326] [2025-03-17 11:34:34,866 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:34:34,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:34,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:34,867 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:34,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-17 11:34:35,115 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 139 statements into 2 equivalence classes. [2025-03-17 11:34:35,330 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 139 of 139 statements. [2025-03-17 11:34:35,331 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:34:35,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:35,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-17 11:34:35,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:35,485 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 82 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-03-17 11:34:35,485 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:34:35,791 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 100 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-03-17 11:34:35,792 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:35,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142223326] [2025-03-17 11:34:35,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142223326] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:34:35,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:34:35,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2025-03-17 11:34:35,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241072337] [2025-03-17 11:34:35,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:34:35,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-03-17 11:34:35,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:35,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-03-17 11:34:35,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2025-03-17 11:34:35,794 INFO L87 Difference]: Start difference. First operand 263 states and 308 transitions. Second operand has 18 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:34:36,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:36,589 INFO L93 Difference]: Finished difference Result 277 states and 327 transitions. [2025-03-17 11:34:36,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-03-17 11:34:36,590 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 139 [2025-03-17 11:34:36,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:36,591 INFO L225 Difference]: With dead ends: 277 [2025-03-17 11:34:36,592 INFO L226 Difference]: Without dead ends: 271 [2025-03-17 11:34:36,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=324, Invalid=606, Unknown=0, NotChecked=0, Total=930 [2025-03-17 11:34:36,592 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 10 mSDsluCounter, 2168 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2388 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:36,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2388 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 11:34:36,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2025-03-17 11:34:36,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2025-03-17 11:34:36,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 263 states have (on average 1.1711026615969582) internal successors, (308), 265 states have internal predecessors, (308), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-03-17 11:34:36,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 315 transitions. [2025-03-17 11:34:36,597 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 315 transitions. Word has length 139 [2025-03-17 11:34:36,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:36,597 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 315 transitions. [2025-03-17 11:34:36,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.722222222222222) internal successors, (139), 18 states have internal predecessors, (139), 2 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:34:36,597 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 315 transitions. [2025-03-17 11:34:36,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-17 11:34:36,599 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:36,599 INFO L218 NwaCegarLoop]: trace histogram [24, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:36,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-17 11:34:36,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:36,800 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:36,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:36,800 INFO L85 PathProgramCache]: Analyzing trace with hash 176029897, now seen corresponding path program 3 times [2025-03-17 11:34:36,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:36,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1594175023] [2025-03-17 11:34:36,801 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:34:36,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:36,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:36,802 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-17 11:34:36,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-17 11:34:37,074 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 147 statements into 10 equivalence classes.