./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 6497de01
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 11:28:20,125 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 11:28:20,186 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf
[2024-11-23 11:28:20,191 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 11:28:20,191 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 11:28:20,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 11:28:20,215 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 11:28:20,215 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 11:28:20,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 11:28:20,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 11:28:20,216 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 11:28:20,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 11:28:20,216 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 11:28:20,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 11:28:20,216 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 11:28:20,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 11:28:20,216 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 11:28:20,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 11:28:20,217 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-23 11:28:20,217 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-23 11:28:20,217 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-23 11:28:20,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 11:28:20,217 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 11:28:20,217 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 11:28:20,217 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 11:28:20,217 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 11:28:20,217 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 11:28:20,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 11:28:20,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 11:28:20,218 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 11:28:20,218 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 11:28:20,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-23 11:28:20,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 11:28:20,218 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 11:28:20,218 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-11-23 11:28:20,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-23 11:28:20,219 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 11:28:20,219 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL
[2024-11-23 11:28:20,219 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-11-23 11:28:20,219 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2024-11-23 11:28:20,219 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2024-11-23 11:28:20,219 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter
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 -> a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df
[2024-11-23 11:28:20,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 11:28:20,492 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 11:28:20,494 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 11:28:20,496 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 11:28:20,496 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 11:28:20,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i
[2024-11-23 11:28:23,483 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/data/e7ff7411d/12437a842269412e8612582a32b76133/FLAG09a6ec3ba
[2024-11-23 11:28:23,828 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 11:28:23,828 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i
[2024-11-23 11:28:23,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/data/e7ff7411d/12437a842269412e8612582a32b76133/FLAG09a6ec3ba
[2024-11-23 11:28:23,861 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/data/e7ff7411d/12437a842269412e8612582a32b76133
[2024-11-23 11:28:23,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 11:28:23,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 11:28:23,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 11:28:23,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 11:28:23,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 11:28:23,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:28:23" (1/1) ...
[2024-11-23 11:28:23,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73006e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:23, skipping insertion in model container
[2024-11-23 11:28:23,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:28:23" (1/1) ...
[2024-11-23 11:28:23,914 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 11:28:24,349 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:24,350 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:24,350 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:24,351 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:24,378 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 11:28:24,428 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
[2024-11-23 11:28:24,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36aac44a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:24, skipping insertion in model container
[2024-11-23 11:28:24,429 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 11:28:24,430 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2024-11-23 11:28:24,431 INFO L158 Benchmark]: Toolchain (without parser) took 565.83ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 74.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-23 11:28:24,432 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB.
[2024-11-23 11:28:24,433 INFO L158 Benchmark]: CACSL2BoogieTranslator took 563.17ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 74.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2024-11-23 11:28:24,434 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.7MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 563.17ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 74.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 1038]: 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: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df
--- Real Ultimate output ---
This is Ultimate 0.3.0-dev-6497de0
[2024-11-23 11:28:27,073 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-11-23 11:28:27,176 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf
[2024-11-23 11:28:27,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-11-23 11:28:27,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-23 11:28:27,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-23 11:28:27,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-23 11:28:27,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-23 11:28:27,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-23 11:28:27,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-23 11:28:27,223 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-23 11:28:27,223 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-11-23 11:28:27,224 INFO L153 SettingsManager]: * Use SBE=true
[2024-11-23 11:28:27,224 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-23 11:28:27,224 INFO L153 SettingsManager]: * sizeof long=4
[2024-11-23 11:28:27,224 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-11-23 11:28:27,224 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-11-23 11:28:27,225 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-11-23 11:28:27,225 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2024-11-23 11:28:27,225 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2024-11-23 11:28:27,225 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2024-11-23 11:28:27,225 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-23 11:28:27,225 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2024-11-23 11:28:27,225 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2024-11-23 11:28:27,226 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-23 11:28:27,226 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2024-11-23 11:28:27,226 INFO L153 SettingsManager]: * sizeof long double=12
[2024-11-23 11:28:27,226 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR
[2024-11-23 11:28:27,226 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-11-23 11:28:27,226 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-23 11:28:27,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-11-23 11:28:27,227 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-11-23 11:28:27,227 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-11-23 11:28:27,227 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-23 11:28:27,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-23 11:28:27,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-11-23 11:28:27,227 INFO L153 SettingsManager]: * Trace refinement strategy=FOX
[2024-11-23 11:28:27,227 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-23 11:28:27,228 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-23 11:28:27,228 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL
[2024-11-23 11:28:27,228 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2024-11-23 11:28:27,228 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2024-11-23 11:28:27,228 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2024-11-23 11:28:27,228 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter
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 -> a0270befea30c9963adb19613f3074c8c29d9100e1f0592dc0c89cf3d3dda0df
[2024-11-23 11:28:27,542 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-23 11:28:27,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-23 11:28:27,554 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-23 11:28:27,555 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-11-23 11:28:27,556 INFO L274 PluginConnector]: CDTParser initialized
[2024-11-23 11:28:27,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/../../sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i
[2024-11-23 11:28:30,496 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/data/b5d3b5646/22c7fd286ae74b179542fbda18fc75c8/FLAG159a34959
[2024-11-23 11:28:30,904 INFO L384 CDTParser]: Found 1 translation units.
[2024-11-23 11:28:30,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/sv-benchmarks/c/goblint-regression/09-regions_22-nocollapse.i
[2024-11-23 11:28:30,929 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/data/b5d3b5646/22c7fd286ae74b179542fbda18fc75c8/FLAG159a34959
[2024-11-23 11:28:30,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/data/b5d3b5646/22c7fd286ae74b179542fbda18fc75c8
[2024-11-23 11:28:30,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-23 11:28:30,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-23 11:28:30,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-23 11:28:30,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-23 11:28:30,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-23 11:28:30,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:28:30" (1/1) ...
[2024-11-23 11:28:30,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ec1850 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:30, skipping insertion in model container
[2024-11-23 11:28:30,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:28:30" (1/1) ...
[2024-11-23 11:28:31,018 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 11:28:31,693 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,695 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,695 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,696 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,729 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 11:28:31,792 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2024-11-23 11:28:31,812 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-11-23 11:28:31,873 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,873 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,873 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,874 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,889 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 11:28:31,925 INFO L200 MainTranslator]: Completed pre-run
[2024-11-23 11:28:31,981 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,981 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,982 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,982 WARN L1675 CHandler]: Possible shadowing of function new
[2024-11-23 11:28:31,997 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-11-23 11:28:32,092 INFO L204 MainTranslator]: Completed translation
[2024-11-23 11:28:32,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32 WrapperNode
[2024-11-23 11:28:32,093 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-23 11:28:32,094 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-23 11:28:32,094 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-23 11:28:32,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-23 11:28:32,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,153 INFO L138 Inliner]: procedures = 275, calls = 98, calls flagged for inlining = 9, calls inlined = 8, statements flattened = 187
[2024-11-23 11:28:32,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-23 11:28:32,161 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-23 11:28:32,161 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-23 11:28:32,161 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-11-23 11:28:32,171 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,171 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,189 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,194 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,197 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,201 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,209 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-23 11:28:32,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-23 11:28:32,209 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-11-23 11:28:32,210 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-11-23 11:28:32,214 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (1/1) ...
[2024-11-23 11:28:32,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2024-11-23 11:28:32,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:32,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2024-11-23 11:28:32,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2024-11-23 11:28:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2024-11-23 11:28:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure f
[2024-11-23 11:28:32,275 INFO L138 BoogieDeclarations]: Found implementation of procedure f
[2024-11-23 11:28:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2024-11-23 11:28:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2024-11-23 11:28:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2024-11-23 11:28:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4
[2024-11-23 11:28:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock
[2024-11-23 11:28:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2024-11-23 11:28:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2024-11-23 11:28:32,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-23 11:28:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2024-11-23 11:28:32,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-23 11:28:32,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-23 11:28:32,277 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement.
[2024-11-23 11:28:32,441 INFO L234 CfgBuilder]: Building ICFG
[2024-11-23 11:28:32,443 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-23 11:28:33,352 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program.
[2024-11-23 11:28:33,352 INFO L283 CfgBuilder]: Performing block encoding
[2024-11-23 11:28:35,253 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-23 11:28:35,254 INFO L312 CfgBuilder]: Removed 4 assume(true) statements.
[2024-11-23 11:28:35,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:28:35 BoogieIcfgContainer
[2024-11-23 11:28:35,254 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-23 11:28:35,257 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-23 11:28:35,257 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-11-23 11:28:35,262 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-11-23 11:28:35,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:28:30" (1/3) ...
[2024-11-23 11:28:35,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b0b4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:28:35, skipping insertion in model container
[2024-11-23 11:28:35,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:32" (2/3) ...
[2024-11-23 11:28:35,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b0b4b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:28:35, skipping insertion in model container
[2024-11-23 11:28:35,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:28:35" (3/3) ...
[2024-11-23 11:28:35,267 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_22-nocollapse.i
[2024-11-23 11:28:35,282 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-23 11:28:35,284 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_22-nocollapse.i that has 2 procedures, 60 locations, 1 initial locations, 4 loop locations, and 29 error locations.
[2024-11-23 11:28:35,284 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2024-11-23 11:28:35,387 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions.
[2024-11-23 11:28:35,439 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 11:28:35,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2024-11-23 11:28:35,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:35,442 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2024-11-23 11:28:35,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2024-11-23 11:28:35,543 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2024-11-23 11:28:35,554 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2024-11-23 11:28:35,562 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=PARTIAL_ORDER_FA, 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;@3be965ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-23 11:28:35,562 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations.
[2024-11-23 11:28:35,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-23 11:28:35,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 11:28:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash 16546205, now seen corresponding path program 1 times
[2024-11-23 11:28:35,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 11:28:35,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054319234]
[2024-11-23 11:28:35,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 11:28:35,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:35,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:35,660 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 11:28:35,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-23 11:28:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 11:28:36,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-23 11:28:36,073 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 11:28:36,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 11:28:36,095 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 11:28:36,095 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 11:28:36,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054319234]
[2024-11-23 11:28:36,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054319234] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 11:28:36,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 11:28:36,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 11:28:36,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895875861]
[2024-11-23 11:28:36,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 11:28:36,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 11:28:36,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 11:28:36,122 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 11:28:36,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 11:28:36,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:36,127 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-23 11:28:36,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 11:28:36,129 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:36,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2024-11-23 11:28:36,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:36,406 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-23 11:28:36,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 11:28:36,408 INFO L85 PathProgramCache]: Analyzing trace with hash 16546206, now seen corresponding path program 1 times
[2024-11-23 11:28:36,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 11:28:36,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [669999852]
[2024-11-23 11:28:36,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 11:28:36,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:36,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:36,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 11:28:36,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-23 11:28:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 11:28:36,790 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 11 conjuncts are in the unsatisfiable core
[2024-11-23 11:28:36,791 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 11:28:36,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 11:28:36,894 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 11:28:36,894 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 11:28:36,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669999852]
[2024-11-23 11:28:36,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669999852] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 11:28:36,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 11:28:36,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 11:28:36,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964509851]
[2024-11-23 11:28:36,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 11:28:36,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 11:28:36,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 11:28:36,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 11:28:36,897 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 11:28:36,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:36,899 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-23 11:28:36,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 11:28:36,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:36,899 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:37,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-11-23 11:28:37,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:37,324 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-23 11:28:37,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 11:28:37,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1278948140, now seen corresponding path program 1 times
[2024-11-23 11:28:37,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 11:28:37,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423633820]
[2024-11-23 11:28:37,326 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 11:28:37,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:37,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:37,328 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 11:28:37,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2024-11-23 11:28:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 11:28:37,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-23 11:28:37,650 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 11:28:37,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2024-11-23 11:28:37,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 11:28:37,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 11:28:37,690 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 11:28:37,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423633820]
[2024-11-23 11:28:37,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423633820] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 11:28:37,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 11:28:37,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 11:28:37,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176536789]
[2024-11-23 11:28:37,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 11:28:37,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 11:28:37,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 11:28:37,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 11:28:37,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 11:28:37,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:37,694 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-23 11:28:37,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 11:28:37,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:37,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:37,695 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:37,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2024-11-23 11:28:38,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:38,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-23 11:28:38,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 11:28:38,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1278948139, now seen corresponding path program 1 times
[2024-11-23 11:28:38,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 11:28:38,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [907337719]
[2024-11-23 11:28:38,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 11:28:38,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:38,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:38,011 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 11:28:38,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2024-11-23 11:28:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 11:28:38,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-23 11:28:38,321 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 11:28:38,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 11:28:38,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 11:28:38,345 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 11:28:38,345 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 11:28:38,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907337719]
[2024-11-23 11:28:38,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907337719] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 11:28:38,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 11:28:38,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-11-23 11:28:38,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502232683]
[2024-11-23 11:28:38,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 11:28:38,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-23 11:28:38,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 11:28:38,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-23 11:28:38,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-23 11:28:38,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:38,347 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-23 11:28:38,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 11:28:38,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:38,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:38,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:38,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:38,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:38,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:38,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:38,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2024-11-23 11:28:38,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:38,807 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-23 11:28:38,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 11:28:38,808 INFO L85 PathProgramCache]: Analyzing trace with hash -708498691, now seen corresponding path program 1 times
[2024-11-23 11:28:38,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 11:28:38,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1941118017]
[2024-11-23 11:28:38,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 11:28:38,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:38,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:38,812 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 11:28:38,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2024-11-23 11:28:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 11:28:39,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-23 11:28:39,146 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 11:28:39,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2024-11-23 11:28:39,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 11:28:39,196 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 11:28:39,196 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 11:28:39,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941118017]
[2024-11-23 11:28:39,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941118017] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 11:28:39,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 11:28:39,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 11:28:39,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170139528]
[2024-11-23 11:28:39,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 11:28:39,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-23 11:28:39,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 11:28:39,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-23 11:28:39,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-23 11:28:39,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:39,198 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-23 11:28:39,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 11:28:39,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:39,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:39,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:39,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:39,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:39,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:39,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:39,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:39,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2024-11-23 11:28:39,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:39,598 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-23 11:28:39,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 11:28:39,599 INFO L85 PathProgramCache]: Analyzing trace with hash -488622422, now seen corresponding path program 1 times
[2024-11-23 11:28:39,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 11:28:39,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605660017]
[2024-11-23 11:28:39,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 11:28:39,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:39,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:39,604 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 11:28:39,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2024-11-23 11:28:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 11:28:40,007 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-23 11:28:40,010 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 11:28:40,094 INFO L349 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size
[2024-11-23 11:28:40,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17
[2024-11-23 11:28:40,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 11:28:40,201 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 11:28:40,201 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 11:28:40,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605660017]
[2024-11-23 11:28:40,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605660017] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 11:28:40,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 11:28:40,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-23 11:28:40,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786796214]
[2024-11-23 11:28:40,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 11:28:40,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 11:28:40,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 11:28:40,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 11:28:40,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-23 11:28:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:40,203 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-23 11:28:40,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 11:28:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:40,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:40,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:40,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:40,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2024-11-23 11:28:40,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:40,568 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-23 11:28:40,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 11:28:40,568 INFO L85 PathProgramCache]: Analyzing trace with hash -488622421, now seen corresponding path program 1 times
[2024-11-23 11:28:40,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 11:28:40,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [809046290]
[2024-11-23 11:28:40,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 11:28:40,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:40,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:40,573 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 11:28:40,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2024-11-23 11:28:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 11:28:40,942 INFO L256 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-23 11:28:40,944 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 11:28:41,065 INFO L190 IndexEqualityManager]: detected not equals via solver
[2024-11-23 11:28:41,066 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9
[2024-11-23 11:28:41,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 11:28:41,156 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-23 11:28:41,156 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 11:28:41,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [809046290]
[2024-11-23 11:28:41,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [809046290] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-23 11:28:41,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-23 11:28:41,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-23 11:28:41,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600115084]
[2024-11-23 11:28:41,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-23 11:28:41,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-23 11:28:41,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 11:28:41,159 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-23 11:28:41,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-23 11:28:41,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:41,160 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-23 11:28:41,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 11:28:41,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:41,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:41,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:41,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:41,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:41,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:41,161 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:41,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:41,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:41,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:41,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:41,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:41,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:41,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:41,806 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0
[2024-11-23 11:28:41,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:41,990 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-23 11:28:41,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 11:28:41,991 INFO L85 PathProgramCache]: Analyzing trace with hash 77571831, now seen corresponding path program 1 times
[2024-11-23 11:28:41,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 11:28:41,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1447406583]
[2024-11-23 11:28:41,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-23 11:28:41,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:41,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:41,994 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 11:28:41,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2024-11-23 11:28:42,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-23 11:28:42,358 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-23 11:28:42,360 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 11:28:42,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 11:28:42,394 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 11:28:42,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 11:28:42,441 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 11:28:42,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447406583]
[2024-11-23 11:28:42,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447406583] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 11:28:42,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 11:28:42,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6
[2024-11-23 11:28:42,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101968481]
[2024-11-23 11:28:42,441 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 11:28:42,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-23 11:28:42,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 11:28:42,442 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-23 11:28:42,442 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-23 11:28:42,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:42,443 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-23 11:28:42,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 11:28:42,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:42,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:42,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:42,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:42,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:42,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:42,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:42,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:42,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 11:28:42,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2024-11-23 11:28:42,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:42,925 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-23 11:28:42,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 11:28:42,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1893237473, now seen corresponding path program 2 times
[2024-11-23 11:28:42,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 11:28:42,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [875180186]
[2024-11-23 11:28:42,926 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-11-23 11:28:42,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:42,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:42,928 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 11:28:42,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2024-11-23 11:28:43,436 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-11-23 11:28:43,437 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-11-23 11:28:43,463 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-23 11:28:43,466 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2024-11-23 11:28:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 11:28:43,578 INFO L312 TraceCheckSpWp]: Computing backward predicates...
[2024-11-23 11:28:43,753 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 3 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-23 11:28:43,753 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace
[2024-11-23 11:28:43,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875180186]
[2024-11-23 11:28:43,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875180186] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-23 11:28:43,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-23 11:28:43,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12
[2024-11-23 11:28:43,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21055821]
[2024-11-23 11:28:43,754 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-23 11:28:43,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2024-11-23 11:28:43,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX
[2024-11-23 11:28:43,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2024-11-23 11:28:43,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132
[2024-11-23 11:28:43,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:43,756 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2024-11-23 11:28:43,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-11-23 11:28:43,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:43,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:43,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:43,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:43,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:43,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:43,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:43,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states.
[2024-11-23 11:28:43,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2024-11-23 11:28:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-11-23 11:28:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2024-11-23 11:28:44,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-11-23 11:28:44,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2024-11-23 11:28:44,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0
[2024-11-23 11:28:44,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:44,744 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 20 more)] ===
[2024-11-23 11:28:44,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-11-23 11:28:44,745 INFO L85 PathProgramCache]: Analyzing trace with hash -120867297, now seen corresponding path program 3 times
[2024-11-23 11:28:44,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX
[2024-11-23 11:28:44,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [113428708]
[2024-11-23 11:28:44,746 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2024-11-23 11:28:44,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-23 11:28:44,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3
[2024-11-23 11:28:44,748 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-23 11:28:44,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6fda15d-e910-40dd-be7e-ebfc6aa55cf6/bin/ugemcutter-verify-Z6otQMs9Ca/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process