./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-2.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_test3-2.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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:33:48,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:33:48,878 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Default.epf [2025-03-17 11:33:48,885 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:33:48,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:33:48,906 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:33:48,907 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:33:48,907 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:33:48,908 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:33:48,908 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:33:48,908 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:33:48,909 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:33:48,909 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:33:48,909 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:33:48,909 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:33:48,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:33:48,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:33:48,910 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:33:48,910 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:33:48,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:33:48,910 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:33:48,910 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:33:48,910 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:33:48,910 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:33:48,910 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:33:48,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:33:48,910 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:33:48,911 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:33:48,911 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:33:48,911 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:33:48,911 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:33:48,911 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:33:48,911 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:33:48,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:33:48,912 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:33:48,912 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:33:48,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:33:48,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:33:48,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:33:48,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:33:48,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:33:48,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:33:48,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:33:48,912 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:33:48,912 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:33:48,913 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 -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2025-03-17 11:33:49,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:33:49,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:33:49,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:33:49,121 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:33:49,122 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:33:49,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-2.i [2025-03-17 11:33:50,280 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b460d3e/d4382537a7944d49a385742fe03f8a6d/FLAG147273ebd [2025-03-17 11:33:50,618 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:33:50,619 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-2.i [2025-03-17 11:33:50,635 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b460d3e/d4382537a7944d49a385742fe03f8a6d/FLAG147273ebd [2025-03-17 11:33:50,651 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b460d3e/d4382537a7944d49a385742fe03f8a6d [2025-03-17 11:33:50,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:33:50,654 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:33:50,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:33:50,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:33:50,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:33:50,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:33:50" (1/1) ... [2025-03-17 11:33:50,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d95e22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:50, skipping insertion in model container [2025-03-17 11:33:50,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:33:50" (1/1) ... [2025-03-17 11:33:50,691 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:33:50,978 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 11:33:51,009 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 11:33:51,014 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 11:33:51,017 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 11:33:51,024 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 11:33:51,054 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 11:33:51,054 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 11:33:51,057 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 11:33:51,059 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 11:33:51,061 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 11:33:51,063 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 11:33:51,066 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 11:33:51,066 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 11:33:51,071 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 11:33:51,072 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 11:33:51,073 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 11:33:51,076 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 11:33:51,077 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 11:33:51,077 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 11:33:51,079 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 11:33:51,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:33:51,102 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 11:33:51,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@77f89e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:51, skipping insertion in model container [2025-03-17 11:33:51,103 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:33:51,103 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-03-17 11:33:51,104 INFO L158 Benchmark]: Toolchain (without parser) took 449.41ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 90.3MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:33:51,105 INFO L158 Benchmark]: CDTParser took 1.10ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-17 11:33:51,105 INFO L158 Benchmark]: CACSL2BoogieTranslator took 447.68ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 90.3MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-17 11:33:51,106 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.10ms. Allocated memory is still 201.3MB. Free memory is still 123.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 447.68ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 90.3MB in the end (delta: 19.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 750]: 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_test3-2.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 be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:33:52,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:33:52,782 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-MemCleanup-32bit-Automizer_Bitvector.epf [2025-03-17 11:33:52,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:33:52,786 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:33:52,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:33:52,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:33:52,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:33:52,808 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 11:33:52,809 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 11:33:52,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:33:52,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:33:52,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:33:52,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:33:52,810 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:33:52,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:33:52,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:33:52,810 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:33:52,810 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:33:52,811 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:33:52,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:33:52,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:33:52,811 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-17 11:33:52,811 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-17 11:33:52,811 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:33:52,811 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:33:52,811 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-17 11:33:52,811 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-17 11:33:52,811 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-17 11:33:52,812 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:33:52,812 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:33:52,812 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:33:52,812 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:33:52,812 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:33:52,812 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:33:52,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:33:52,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 11:33:52,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:33:52,813 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:33:52,813 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:33:52,813 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:33:52,813 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-17 11:33:52,813 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-17 11:33:52,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:33:52,813 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:33:52,813 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:33:52,813 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:33:52,813 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 -> be29e8161f6a6b8e8b181f151bf5388e6a9e3237ae426f572d4ceda403cee9b8 [2025-03-17 11:33:53,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:33:53,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:33:53,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:33:53,054 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:33:53,054 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:33:53,056 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-2.i [2025-03-17 11:33:54,211 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/264052526/bb92ec8bd8654c329ed4c64f5f570227/FLAG1ee822d70 [2025-03-17 11:33:54,486 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:33:54,487 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test3-2.i [2025-03-17 11:33:54,503 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/264052526/bb92ec8bd8654c329ed4c64f5f570227/FLAG1ee822d70 [2025-03-17 11:33:54,517 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/264052526/bb92ec8bd8654c329ed4c64f5f570227 [2025-03-17 11:33:54,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:33:54,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:33:54,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:33:54,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:33:54,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:33:54,527 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:33:54" (1/1) ... [2025-03-17 11:33:54,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187e6e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:54, skipping insertion in model container [2025-03-17 11:33:54,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:33:54" (1/1) ... [2025-03-17 11:33:54,575 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:33:54,915 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 11:33:54,950 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 11:33:54,955 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 11:33:54,957 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 11:33:54,967 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 11:33:54,994 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 11:33:54,995 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 11:33:54,997 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 11:33:54,999 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 11:33:55,001 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 11:33:55,002 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 11:33:55,003 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 11:33:55,004 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 11:33:55,008 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 11:33:55,009 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 11:33:55,011 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 11:33:55,012 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 11:33:55,012 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 11:33:55,013 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 11:33:55,016 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 11:33:55,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:33:55,037 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-03-17 11:33:55,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:33:55,077 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 11:33:55,087 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 11:33:55,091 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 11:33:55,092 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 11:33:55,099 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 11:33:55,117 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 11:33:55,118 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 11:33:55,119 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 11:33:55,119 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 11:33:55,120 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 11:33:55,121 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 11:33:55,121 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 11:33:55,121 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 11:33:55,126 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 11:33:55,128 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 11:33:55,129 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 11:33:55,130 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 11:33:55,131 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 11:33:55,132 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 11:33:55,134 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 11:33:55,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:33:55,142 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:33:55,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:33:55,246 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:33:55,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55 WrapperNode [2025-03-17 11:33:55,246 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:33:55,247 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:33:55,247 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:33:55,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:33:55,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,287 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,332 INFO L138 Inliner]: procedures = 180, calls = 325, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1137 [2025-03-17 11:33:55,333 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:33:55,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:33:55,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:33:55,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:33:55,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,353 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,424 INFO L175 MemorySlicer]: Split 302 memory accesses to 3 slices as follows [2, 266, 34]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 62 writes are split as follows [0, 58, 4]. [2025-03-17 11:33:55,428 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,428 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,467 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,469 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,475 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:33:55,492 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:33:55,492 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:33:55,492 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:33:55,493 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (1/1) ... [2025-03-17 11:33:55,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:33:55,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:33:55,517 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 11:33:55,520 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 11:33:55,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2025-03-17 11:33:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2025-03-17 11:33:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2025-03-17 11:33:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-17 11:33:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-17 11:33:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-17 11:33:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2025-03-17 11:33:55,541 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2025-03-17 11:33:55,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2025-03-17 11:33:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2025-03-17 11:33:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2025-03-17 11:33:55,542 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2025-03-17 11:33:55,542 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2025-03-17 11:33:55,542 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2025-03-17 11:33:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-17 11:33:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:33:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-17 11:33:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-17 11:33:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-17 11:33:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 11:33:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-17 11:33:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-17 11:33:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-17 11:33:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-17 11:33:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-17 11:33:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-17 11:33:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:33:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-17 11:33:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-17 11:33:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-17 11:33:55,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:33:55,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:33:55,771 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:33:55,773 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:34:03,160 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L734: 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 11:34:03,232 INFO L? ?]: Removed 141 outVars from TransFormulas that were not future-live. [2025-03-17 11:34:03,233 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:34:03,242 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:34:03,242 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:34:03,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:34:03 BoogieIcfgContainer [2025-03-17 11:34:03,243 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:34:03,245 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:34:03,245 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:34:03,248 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:34:03,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:33:54" (1/3) ... [2025-03-17 11:34:03,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da87042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:34:03, skipping insertion in model container [2025-03-17 11:34:03,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:33:55" (2/3) ... [2025-03-17 11:34:03,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da87042 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:34:03, skipping insertion in model container [2025-03-17 11:34:03,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:34:03" (3/3) ... [2025-03-17 11:34:03,250 INFO L128 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test3-2.i [2025-03-17 11:34:03,260 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:34:03,261 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG uthash_OAT_nondet_test3-2.i that has 5 procedures, 231 locations, 1 initial locations, 41 loop locations, and 2 error locations. [2025-03-17 11:34:03,290 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:34:03,299 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;@5cf612e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:34:03,299 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-17 11:34:03,302 INFO L276 IsEmpty]: Start isEmpty. Operand has 223 states, 213 states have (on average 1.6619718309859155) internal successors, (354), 216 states have internal predecessors, (354), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 11:34:03,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-17 11:34:03,306 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:03,307 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-17 11:34:03,307 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:03,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:03,314 INFO L85 PathProgramCache]: Analyzing trace with hash 391791, now seen corresponding path program 1 times [2025-03-17 11:34:03,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:03,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1303363364] [2025-03-17 11:34:03,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:03,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:03,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:03,324 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 11:34:03,325 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 11:34:03,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-17 11:34:03,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-17 11:34:03,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:03,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:03,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:34:03,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:03,563 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 11:34:03,569 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 11:34:03,569 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:03,570 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:03,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303363364] [2025-03-17 11:34:03,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303363364] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:03,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:03,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:34:03,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001465617] [2025-03-17 11:34:03,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:03,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:03,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:03,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:03,594 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-03-17 11:34:03,596 INFO L87 Difference]: Start difference. First operand has 223 states, 213 states have (on average 1.6619718309859155) internal successors, (354), 216 states have internal predecessors, (354), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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 11:34:07,786 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 11:34:07,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:07,997 INFO L93 Difference]: Finished difference Result 341 states and 453 transitions. [2025-03-17 11:34:08,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:34:08,004 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 11:34:08,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:08,009 INFO L225 Difference]: With dead ends: 341 [2025-03-17 11:34:08,009 INFO L226 Difference]: Without dead ends: 338 [2025-03-17 11:34:08,010 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 11:34:08,012 INFO L435 NwaCegarLoop]: 285 mSDtfsCounter, 152 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 454 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:08,012 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 552 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 1 Unknown, 454 Unchecked, 4.4s Time] [2025-03-17 11:34:08,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2025-03-17 11:34:08,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 220. [2025-03-17 11:34:08,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 211 states have (on average 1.3175355450236967) internal successors, (278), 213 states have internal predecessors, (278), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2025-03-17 11:34:08,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 288 transitions. [2025-03-17 11:34:08,065 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 288 transitions. Word has length 3 [2025-03-17 11:34:08,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:08,065 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 288 transitions. [2025-03-17 11:34:08,065 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 11:34:08,065 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 288 transitions. [2025-03-17 11:34:08,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 11:34:08,067 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:08,067 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:08,074 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 11:34:08,271 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 11:34:08,271 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:08,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:08,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2017335277, now seen corresponding path program 1 times [2025-03-17 11:34:08,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:08,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [671577833] [2025-03-17 11:34:08,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:08,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:08,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:08,274 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 11:34:08,275 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 11:34:08,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 11:34:08,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 11:34:08,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:08,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:08,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:08,426 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:08,512 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 11:34:08,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:08,513 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:08,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671577833] [2025-03-17 11:34:08,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [671577833] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:08,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:08,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:34:08,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360644493] [2025-03-17 11:34:08,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:08,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:34:08,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:08,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:34:08,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:34:08,514 INFO L87 Difference]: Start difference. First operand 220 states and 288 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:09,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:09,207 INFO L93 Difference]: Finished difference Result 360 states and 475 transitions. [2025-03-17 11:34:09,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:34:09,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-03-17 11:34:09,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:09,212 INFO L225 Difference]: With dead ends: 360 [2025-03-17 11:34:09,212 INFO L226 Difference]: Without dead ends: 360 [2025-03-17 11:34:09,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 11:34:09,213 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 171 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:09,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 519 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-17 11:34:09,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2025-03-17 11:34:09,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 330. [2025-03-17 11:34:09,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 319 states have (on average 1.322884012539185) internal successors, (422), 322 states have internal predecessors, (422), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 11:34:09,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 436 transitions. [2025-03-17 11:34:09,228 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 436 transitions. Word has length 13 [2025-03-17 11:34:09,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:09,228 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 436 transitions. [2025-03-17 11:34:09,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:09,229 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 436 transitions. [2025-03-17 11:34:09,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-17 11:34:09,229 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:09,229 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:09,235 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 11:34:09,429 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 11:34:09,430 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:09,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:09,430 INFO L85 PathProgramCache]: Analyzing trace with hash 2017365068, now seen corresponding path program 1 times [2025-03-17 11:34:09,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:09,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [231639516] [2025-03-17 11:34:09,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:09,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:09,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:09,432 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 11:34:09,433 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 11:34:09,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 11:34:09,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 11:34:09,555 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:09,555 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:09,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:34:09,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:09,667 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 11:34:09,668 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 11:34:09,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:09,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:09,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231639516] [2025-03-17 11:34:09,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231639516] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:09,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:09,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:34:09,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699736536] [2025-03-17 11:34:09,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:09,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:09,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:09,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:09,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2025-03-17 11:34:09,669 INFO L87 Difference]: Start difference. First operand 330 states and 436 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:13,787 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 11:34:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:14,496 INFO L93 Difference]: Finished difference Result 445 states and 588 transitions. [2025-03-17 11:34:14,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:34:14,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2025-03-17 11:34:14,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:14,503 INFO L225 Difference]: With dead ends: 445 [2025-03-17 11:34:14,503 INFO L226 Difference]: Without dead ends: 444 [2025-03-17 11:34:14,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 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 11:34:14,504 INFO L435 NwaCegarLoop]: 284 mSDtfsCounter, 117 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 423 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:14,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 550 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 1 Unknown, 423 Unchecked, 4.8s Time] [2025-03-17 11:34:14,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2025-03-17 11:34:14,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 380. [2025-03-17 11:34:14,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 367 states have (on average 1.3215258855585832) internal successors, (485), 370 states have internal predecessors, (485), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2025-03-17 11:34:14,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 503 transitions. [2025-03-17 11:34:14,516 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 503 transitions. Word has length 13 [2025-03-17 11:34:14,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:14,516 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 503 transitions. [2025-03-17 11:34:14,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:14,516 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 503 transitions. [2025-03-17 11:34:14,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-03-17 11:34:14,520 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:14,520 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:34:14,528 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 11:34:14,720 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 11:34:14,720 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:14,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:14,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1501564640, now seen corresponding path program 1 times [2025-03-17 11:34:14,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:14,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273340275] [2025-03-17 11:34:14,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:14,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:14,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:14,724 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 11:34:14,725 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 11:34:14,814 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-03-17 11:34:14,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-03-17 11:34:14,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:14,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:14,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-17 11:34:14,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:14,915 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 11:34:14,916 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:14,916 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:14,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273340275] [2025-03-17 11:34:14,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273340275] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:14,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:14,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:34:14,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101293932] [2025-03-17 11:34:14,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:14,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:14,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:14,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:14,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:14,917 INFO L87 Difference]: Start difference. First operand 380 states and 503 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:19,145 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 11:34:20,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:20,919 INFO L93 Difference]: Finished difference Result 408 states and 535 transitions. [2025-03-17 11:34:20,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:34:20,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2025-03-17 11:34:20,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:20,922 INFO L225 Difference]: With dead ends: 408 [2025-03-17 11:34:20,922 INFO L226 Difference]: Without dead ends: 403 [2025-03-17 11:34:20,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:34:20,923 INFO L435 NwaCegarLoop]: 295 mSDtfsCounter, 175 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:20,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 807 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2025-03-17 11:34:20,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2025-03-17 11:34:20,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 373. [2025-03-17 11:34:20,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 362 states have (on average 1.3176795580110496) internal successors, (477), 365 states have internal predecessors, (477), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 11:34:20,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 491 transitions. [2025-03-17 11:34:20,931 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 491 transitions. Word has length 14 [2025-03-17 11:34:20,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:20,931 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 491 transitions. [2025-03-17 11:34:20,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:20,931 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 491 transitions. [2025-03-17 11:34:20,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 11:34:20,932 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:20,932 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, 1, 1] [2025-03-17 11:34:20,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-17 11:34:21,132 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 11:34:21,133 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:21,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:21,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1815244635, now seen corresponding path program 1 times [2025-03-17 11:34:21,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:21,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1528043618] [2025-03-17 11:34:21,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:21,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:21,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:21,135 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 11:34:21,136 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 11:34:21,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 11:34:21,271 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 11:34:21,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:21,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:21,277 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:21,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:21,294 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 11:34:21,295 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:21,295 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:21,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528043618] [2025-03-17 11:34:21,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528043618] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:21,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:21,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:34:21,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486186159] [2025-03-17 11:34:21,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:21,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:34:21,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:21,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:34:21,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:34:21,297 INFO L87 Difference]: Start difference. First operand 373 states and 491 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:21,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:21,381 INFO L93 Difference]: Finished difference Result 433 states and 551 transitions. [2025-03-17 11:34:21,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:34:21,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-17 11:34:21,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:21,383 INFO L225 Difference]: With dead ends: 433 [2025-03-17 11:34:21,383 INFO L226 Difference]: Without dead ends: 433 [2025-03-17 11:34:21,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 46 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 11:34:21,385 INFO L435 NwaCegarLoop]: 268 mSDtfsCounter, 9 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 521 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 11:34:21,385 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 521 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:34:21,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2025-03-17 11:34:21,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2025-03-17 11:34:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 422 states have (on average 1.2725118483412323) internal successors, (537), 425 states have internal predecessors, (537), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 11:34:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 551 transitions. [2025-03-17 11:34:21,393 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 551 transitions. Word has length 48 [2025-03-17 11:34:21,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:21,393 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 551 transitions. [2025-03-17 11:34:21,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:21,394 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 551 transitions. [2025-03-17 11:34:21,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 11:34:21,398 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:21,398 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, 1, 1] [2025-03-17 11:34:21,407 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 11:34:21,598 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 11:34:21,599 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:21,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:21,599 INFO L85 PathProgramCache]: Analyzing trace with hash 529422406, now seen corresponding path program 1 times [2025-03-17 11:34:21,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:21,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1437123521] [2025-03-17 11:34:21,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:21,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:21,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:21,601 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 11:34:21,602 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 11:34:21,694 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 11:34:21,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 11:34:21,726 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:21,726 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:21,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:21,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:21,752 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 11:34:21,752 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:21,752 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:21,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437123521] [2025-03-17 11:34:21,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437123521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:21,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:21,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:34:21,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954918307] [2025-03-17 11:34:21,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:21,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:21,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:21,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:21,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:21,755 INFO L87 Difference]: Start difference. First operand 433 states and 551 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:21,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:21,853 INFO L93 Difference]: Finished difference Result 382 states and 467 transitions. [2025-03-17 11:34:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:34:21,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-17 11:34:21,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:21,856 INFO L225 Difference]: With dead ends: 382 [2025-03-17 11:34:21,856 INFO L226 Difference]: Without dead ends: 382 [2025-03-17 11:34:21,857 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 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 11:34:21,857 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 32 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 754 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 11:34:21,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 754 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:34:21,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2025-03-17 11:34:21,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2025-03-17 11:34:21,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 371 states have (on average 1.221024258760108) internal successors, (453), 374 states have internal predecessors, (453), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2025-03-17 11:34:21,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 467 transitions. [2025-03-17 11:34:21,864 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 467 transitions. Word has length 48 [2025-03-17 11:34:21,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:21,864 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 467 transitions. [2025-03-17 11:34:21,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:21,864 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 467 transitions. [2025-03-17 11:34:21,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2025-03-17 11:34:21,865 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:21,865 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, 1, 1] [2025-03-17 11:34:21,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-17 11:34:22,065 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 11:34:22,066 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:22,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:22,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1379453089, now seen corresponding path program 1 times [2025-03-17 11:34:22,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:22,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406968392] [2025-03-17 11:34:22,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:22,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:22,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:22,068 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 11:34:22,069 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 11:34:22,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 11:34:22,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 11:34:22,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:22,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:22,217 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 11:34:22,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:22,237 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:22,238 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:22,239 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:22,242 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 11:34:22,311 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:34:22,311 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 11:34:22,359 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 11:34:22,360 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:22,360 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:22,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406968392] [2025-03-17 11:34:22,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406968392] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:22,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:22,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:34:22,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391933930] [2025-03-17 11:34:22,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:22,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 11:34:22,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:22,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 11:34:22,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-17 11:34:22,361 INFO L87 Difference]: Start difference. First operand 382 states and 467 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:22,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:22,847 INFO L93 Difference]: Finished difference Result 384 states and 478 transitions. [2025-03-17 11:34:22,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:34:22,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2025-03-17 11:34:22,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:22,849 INFO L225 Difference]: With dead ends: 384 [2025-03-17 11:34:22,849 INFO L226 Difference]: Without dead ends: 381 [2025-03-17 11:34:22,849 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 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 11:34:22,849 INFO L435 NwaCegarLoop]: 296 mSDtfsCounter, 105 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1132 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 11:34:22,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1132 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-17 11:34:22,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2025-03-17 11:34:22,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 335. [2025-03-17 11:34:22,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 325 states have (on average 1.243076923076923) internal successors, (404), 328 states have internal predecessors, (404), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 11:34:22,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 416 transitions. [2025-03-17 11:34:22,856 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 416 transitions. Word has length 48 [2025-03-17 11:34:22,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:22,856 INFO L471 AbstractCegarLoop]: Abstraction has 335 states and 416 transitions. [2025-03-17 11:34:22,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:34:22,856 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 416 transitions. [2025-03-17 11:34:22,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-17 11:34:22,857 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:22,858 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] [2025-03-17 11:34:22,867 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 11:34:23,058 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 11:34:23,059 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:23,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:23,060 INFO L85 PathProgramCache]: Analyzing trace with hash -483854248, now seen corresponding path program 1 times [2025-03-17 11:34:23,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:23,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [142527066] [2025-03-17 11:34:23,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:23,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:23,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:23,063 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 11:34:23,064 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 11:34:23,298 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-17 11:34:23,395 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-17 11:34:23,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:23,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:23,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:23,409 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:23,425 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 11:34:23,426 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:23,426 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:23,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142527066] [2025-03-17 11:34:23,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142527066] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:23,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:23,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:34:23,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666571443] [2025-03-17 11:34:23,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:23,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:34:23,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:23,428 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:34:23,428 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:34:23,428 INFO L87 Difference]: Start difference. First operand 335 states and 416 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 11:34:23,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:23,531 INFO L93 Difference]: Finished difference Result 375 states and 456 transitions. [2025-03-17 11:34:23,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:34:23,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 82 [2025-03-17 11:34:23,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:23,538 INFO L225 Difference]: With dead ends: 375 [2025-03-17 11:34:23,538 INFO L226 Difference]: Without dead ends: 375 [2025-03-17 11:34:23,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 80 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 11:34:23,539 INFO L435 NwaCegarLoop]: 257 mSDtfsCounter, 8 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 499 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 11:34:23,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 499 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:34:23,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2025-03-17 11:34:23,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 375. [2025-03-17 11:34:23,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 375 states, 365 states have (on average 1.2164383561643837) internal successors, (444), 368 states have internal predecessors, (444), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-03-17 11:34:23,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 456 transitions. [2025-03-17 11:34:23,547 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 456 transitions. Word has length 82 [2025-03-17 11:34:23,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:23,548 INFO L471 AbstractCegarLoop]: Abstraction has 375 states and 456 transitions. [2025-03-17 11:34:23,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 11:34:23,548 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 456 transitions. [2025-03-17 11:34:23,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-03-17 11:34:23,549 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:23,549 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] [2025-03-17 11:34:23,575 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 11:34:23,749 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 11:34:23,750 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:23,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:23,751 INFO L85 PathProgramCache]: Analyzing trace with hash 682842071, now seen corresponding path program 1 times [2025-03-17 11:34:23,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:23,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1877965454] [2025-03-17 11:34:23,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:23,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:23,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:23,753 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 11:34:23,755 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 11:34:23,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-03-17 11:34:24,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-03-17 11:34:24,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:24,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:24,142 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:34:24,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:24,423 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 11:34:24,424 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:24,424 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:24,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877965454] [2025-03-17 11:34:24,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877965454] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:24,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:24,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:34:24,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977252966] [2025-03-17 11:34:24,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:24,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:24,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:24,424 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:24,424 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:24,425 INFO L87 Difference]: Start difference. First operand 375 states and 456 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 11:34:28,820 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 11:34:32,826 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 11:34:35,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:35,210 INFO L93 Difference]: Finished difference Result 539 states and 661 transitions. [2025-03-17 11:34:35,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:34:35,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 82 [2025-03-17 11:34:35,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:35,212 INFO L225 Difference]: With dead ends: 539 [2025-03-17 11:34:35,212 INFO L226 Difference]: Without dead ends: 539 [2025-03-17 11:34:35,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 11:34:35,213 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 566 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:35,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 542 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 122 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2025-03-17 11:34:35,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2025-03-17 11:34:35,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 468. [2025-03-17 11:34:35,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 456 states have (on average 1.2105263157894737) internal successors, (552), 460 states have internal predecessors, (552), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 11:34:35,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 568 transitions. [2025-03-17 11:34:35,223 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 568 transitions. Word has length 82 [2025-03-17 11:34:35,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:35,224 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 568 transitions. [2025-03-17 11:34:35,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 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 11:34:35,224 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 568 transitions. [2025-03-17 11:34:35,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-17 11:34:35,225 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:35,225 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] [2025-03-17 11:34:35,238 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 11:34:35,425 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 11:34:35,426 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:35,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:35,426 INFO L85 PathProgramCache]: Analyzing trace with hash 78818934, now seen corresponding path program 1 times [2025-03-17 11:34:35,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:35,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2037923851] [2025-03-17 11:34:35,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:35,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:35,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:35,428 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 11:34:35,429 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 11:34:35,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-17 11:34:35,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-17 11:34:35,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:35,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:35,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:35,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:35,758 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 11:34:35,760 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:35,760 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:35,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2037923851] [2025-03-17 11:34:35,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2037923851] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:35,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:35,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:34:35,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933106609] [2025-03-17 11:34:35,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:35,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:35,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:35,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:35,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:35,762 INFO L87 Difference]: Start difference. First operand 468 states and 568 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:35,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:35,884 INFO L93 Difference]: Finished difference Result 434 states and 512 transitions. [2025-03-17 11:34:35,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 11:34:35,884 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2025-03-17 11:34:35,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:35,886 INFO L225 Difference]: With dead ends: 434 [2025-03-17 11:34:35,886 INFO L226 Difference]: Without dead ends: 434 [2025-03-17 11:34:35,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 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 11:34:35,886 INFO L435 NwaCegarLoop]: 245 mSDtfsCounter, 32 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 721 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 11:34:35,887 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 721 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:34:35,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2025-03-17 11:34:35,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2025-03-17 11:34:35,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 422 states have (on average 1.1753554502369667) internal successors, (496), 426 states have internal predecessors, (496), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-03-17 11:34:35,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 512 transitions. [2025-03-17 11:34:35,895 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 512 transitions. Word has length 83 [2025-03-17 11:34:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:35,895 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 512 transitions. [2025-03-17 11:34:35,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 512 transitions. [2025-03-17 11:34:35,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-03-17 11:34:35,896 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:35,896 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] [2025-03-17 11:34:35,915 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 11:34:36,096 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 11:34:36,097 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:36,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:36,098 INFO L85 PathProgramCache]: Analyzing trace with hash -208947953, now seen corresponding path program 1 times [2025-03-17 11:34:36,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:36,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [601696908] [2025-03-17 11:34:36,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:36,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:36,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:36,102 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 11:34:36,110 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 11:34:36,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-03-17 11:34:36,477 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-03-17 11:34:36,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:36,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:36,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-17 11:34:36,490 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-17 11:34:36,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:36,512 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:36,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601696908] [2025-03-17 11:34:36,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601696908] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:36,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:36,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 11:34:36,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144108908] [2025-03-17 11:34:36,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:36,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 11:34:36,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:36,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 11:34:36,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 11:34:36,514 INFO L87 Difference]: Start difference. First operand 434 states and 512 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:36,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:36,563 INFO L93 Difference]: Finished difference Result 437 states and 516 transitions. [2025-03-17 11:34:36,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 11:34:36,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 83 [2025-03-17 11:34:36,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:36,569 INFO L225 Difference]: With dead ends: 437 [2025-03-17 11:34:36,569 INFO L226 Difference]: Without dead ends: 437 [2025-03-17 11:34:36,569 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 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 11:34:36,570 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 0 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 785 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 11:34:36,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 785 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-17 11:34:36,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2025-03-17 11:34:36,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2025-03-17 11:34:36,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 424 states have (on average 1.1768867924528301) internal successors, (499), 429 states have internal predecessors, (499), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:34:36,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 516 transitions. [2025-03-17 11:34:36,583 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 516 transitions. Word has length 83 [2025-03-17 11:34:36,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:36,583 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 516 transitions. [2025-03-17 11:34:36,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:36,583 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 516 transitions. [2025-03-17 11:34:36,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-03-17 11:34:36,584 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:36,584 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] [2025-03-17 11:34:36,602 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 11:34:36,784 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 11:34:36,785 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:36,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:36,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1372064267, now seen corresponding path program 1 times [2025-03-17 11:34:36,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:36,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [112117286] [2025-03-17 11:34:36,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:36,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:36,788 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:36,792 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 11:34:36,794 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 11:34:36,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-03-17 11:34:37,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-03-17 11:34:37,103 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:37,103 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:37,116 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-17 11:34:37,118 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:37,150 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 11:34:37,151 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:34:37,253 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-03-17 11:34:37,254 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:37,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112117286] [2025-03-17 11:34:37,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112117286] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:34:37,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:34:37,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-03-17 11:34:37,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373506655] [2025-03-17 11:34:37,254 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:34:37,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-17 11:34:37,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:37,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-17 11:34:37,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-03-17 11:34:37,256 INFO L87 Difference]: Start difference. First operand 437 states and 516 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:34:37,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:37,394 INFO L93 Difference]: Finished difference Result 448 states and 533 transitions. [2025-03-17 11:34:37,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-17 11:34:37,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 85 [2025-03-17 11:34:37,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:37,397 INFO L225 Difference]: With dead ends: 448 [2025-03-17 11:34:37,397 INFO L226 Difference]: Without dead ends: 448 [2025-03-17 11:34:37,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 162 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 11:34:37,398 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 4 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:37,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 785 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-17 11:34:37,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2025-03-17 11:34:37,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 446. [2025-03-17 11:34:37,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 432 states have (on average 1.1875) internal successors, (513), 437 states have internal predecessors, (513), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-17 11:34:37,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 531 transitions. [2025-03-17 11:34:37,408 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 531 transitions. Word has length 85 [2025-03-17 11:34:37,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:37,408 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 531 transitions. [2025-03-17 11:34:37,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:34:37,408 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 531 transitions. [2025-03-17 11:34:37,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-03-17 11:34:37,408 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:37,409 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] [2025-03-17 11:34:37,422 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 11:34:37,613 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 11:34:37,613 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:37,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:37,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1357827087, now seen corresponding path program 2 times [2025-03-17 11:34:37,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:37,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [964662324] [2025-03-17 11:34:37,618 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:34:37,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:37,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:37,620 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 11:34:37,622 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 11:34:37,858 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 89 statements into 2 equivalence classes. [2025-03-17 11:34:38,004 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 89 of 89 statements. [2025-03-17 11:34:38,005 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:34:38,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:38,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 11:34:38,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:38,542 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:38,543 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:38,543 INFO L173 IndexEqualityManager]: detected equality via solver [2025-03-17 11:34:38,545 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 11:34:38,641 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-03-17 11:34:38,642 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 11:34:38,675 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-17 11:34:38,676 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-17 11:34:38,676 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:38,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964662324] [2025-03-17 11:34:38,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964662324] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:34:38,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:34:38,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-17 11:34:38,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244318077] [2025-03-17 11:34:38,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:34:38,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:34:38,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:38,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:34:38,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:34:38,677 INFO L87 Difference]: Start difference. First operand 446 states and 531 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:39,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:39,019 INFO L93 Difference]: Finished difference Result 554 states and 660 transitions. [2025-03-17 11:34:39,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:34:39,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 89 [2025-03-17 11:34:39,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:39,021 INFO L225 Difference]: With dead ends: 554 [2025-03-17 11:34:39,021 INFO L226 Difference]: Without dead ends: 554 [2025-03-17 11:34:39,021 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 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 11:34:39,022 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 471 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:39,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 752 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-17 11:34:39,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2025-03-17 11:34:39,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 448. [2025-03-17 11:34:39,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 434 states have (on average 1.1866359447004609) internal successors, (515), 439 states have internal predecessors, (515), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2025-03-17 11:34:39,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 533 transitions. [2025-03-17 11:34:39,031 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 533 transitions. Word has length 89 [2025-03-17 11:34:39,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:39,032 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 533 transitions. [2025-03-17 11:34:39,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-03-17 11:34:39,032 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 533 transitions. [2025-03-17 11:34:39,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-17 11:34:39,033 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:39,033 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:39,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-17 11:34:39,233 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 11:34:39,233 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:39,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:39,234 INFO L85 PathProgramCache]: Analyzing trace with hash -2124663878, now seen corresponding path program 1 times [2025-03-17 11:34:39,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:39,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2111089471] [2025-03-17 11:34:39,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:34:39,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:39,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:39,237 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 11:34:39,238 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 11:34:39,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-17 11:34:39,645 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-17 11:34:39,645 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:34:39,645 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:39,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-17 11:34:39,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-03-17 11:34:39,720 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:34:39,850 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 20 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-03-17 11:34:39,850 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:39,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111089471] [2025-03-17 11:34:39,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111089471] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:34:39,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:34:39,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2025-03-17 11:34:39,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003491757] [2025-03-17 11:34:39,850 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:34:39,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-17 11:34:39,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:39,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-17 11:34:39,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2025-03-17 11:34:39,851 INFO L87 Difference]: Start difference. First operand 448 states and 533 transitions. Second operand has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:34:40,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:40,119 INFO L93 Difference]: Finished difference Result 456 states and 543 transitions. [2025-03-17 11:34:40,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-03-17 11:34:40,119 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 131 [2025-03-17 11:34:40,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:40,122 INFO L225 Difference]: With dead ends: 456 [2025-03-17 11:34:40,122 INFO L226 Difference]: Without dead ends: 454 [2025-03-17 11:34:40,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 252 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 11:34:40,122 INFO L435 NwaCegarLoop]: 264 mSDtfsCounter, 5 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1567 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:40,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1567 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 11:34:40,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2025-03-17 11:34:40,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 452. [2025-03-17 11:34:40,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 452 states, 438 states have (on average 1.1894977168949772) internal successors, (521), 443 states have internal predecessors, (521), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:34:40,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 538 transitions. [2025-03-17 11:34:40,131 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 538 transitions. Word has length 131 [2025-03-17 11:34:40,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:40,131 INFO L471 AbstractCegarLoop]: Abstraction has 452 states and 538 transitions. [2025-03-17 11:34:40,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.2) internal successors, (132), 10 states have internal predecessors, (132), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2025-03-17 11:34:40,132 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 538 transitions. [2025-03-17 11:34:40,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-17 11:34:40,133 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:40,133 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, 1, 1] [2025-03-17 11:34:40,148 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 11:34:40,333 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 11:34:40,334 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:40,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:40,334 INFO L85 PathProgramCache]: Analyzing trace with hash 513934266, now seen corresponding path program 2 times [2025-03-17 11:34:40,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:40,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1366812387] [2025-03-17 11:34:40,335 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-17 11:34:40,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:40,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:40,336 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 11:34:40,337 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 11:34:40,570 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 135 statements into 2 equivalence classes. [2025-03-17 11:34:40,763 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 135 of 135 statements. [2025-03-17 11:34:40,763 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-03-17 11:34:40,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:34:40,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 661 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-17 11:34:40,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-17 11:34:40,859 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 11:34:40,859 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-17 11:34:41,035 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 11:34:41,035 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-17 11:34:41,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366812387] [2025-03-17 11:34:41,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366812387] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-17 11:34:41,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-03-17 11:34:41,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2025-03-17 11:34:41,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553717723] [2025-03-17 11:34:41,036 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-03-17 11:34:41,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-03-17 11:34:41,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-17 11:34:41,036 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-03-17 11:34:41,036 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2025-03-17 11:34:41,037 INFO L87 Difference]: Start difference. First operand 452 states and 538 transitions. Second operand has 14 states, 14 states have (on average 9.428571428571429) internal successors, (132), 14 states have internal predecessors, (132), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:34:41,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-17 11:34:41,418 INFO L93 Difference]: Finished difference Result 464 states and 554 transitions. [2025-03-17 11:34:41,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-17 11:34:41,418 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 9.428571428571429) internal successors, (132), 14 states have internal predecessors, (132), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 135 [2025-03-17 11:34:41,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-17 11:34:41,420 INFO L225 Difference]: With dead ends: 464 [2025-03-17 11:34:41,420 INFO L226 Difference]: Without dead ends: 460 [2025-03-17 11:34:41,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=324, Unknown=0, NotChecked=0, Total=506 [2025-03-17 11:34:41,421 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 7 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1570 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-17 11:34:41,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1570 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-17 11:34:41,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2025-03-17 11:34:41,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 458. [2025-03-17 11:34:41,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 444 states have (on average 1.195945945945946) internal successors, (531), 449 states have internal predecessors, (531), 8 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2025-03-17 11:34:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 548 transitions. [2025-03-17 11:34:41,429 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 548 transitions. Word has length 135 [2025-03-17 11:34:41,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-17 11:34:41,429 INFO L471 AbstractCegarLoop]: Abstraction has 458 states and 548 transitions. [2025-03-17 11:34:41,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.428571428571429) internal successors, (132), 14 states have internal predecessors, (132), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2025-03-17 11:34:41,429 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 548 transitions. [2025-03-17 11:34:41,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-03-17 11:34:41,430 INFO L210 NwaCegarLoop]: Found error trace [2025-03-17 11:34:41,430 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, 1, 1] [2025-03-17 11:34:41,446 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 11:34:41,631 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 11:34:41,631 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, __VERIFIER_assertErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2025-03-17 11:34:41,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:34:41,632 INFO L85 PathProgramCache]: Analyzing trace with hash -85878214, now seen corresponding path program 3 times [2025-03-17 11:34:41,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-17 11:34:41,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181233195] [2025-03-17 11:34:41,633 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-03-17 11:34:41,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-17 11:34:41,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:34:41,635 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 11:34:41,636 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 11:34:41,900 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 141 statements into 7 equivalence classes.