./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 527bcce2
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-527bcce
[2023-11-21 22:19:56,427 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-21 22:19:56,536 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2023-11-21 22:19:56,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-21 22:19:56,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-21 22:19:56,587 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-21 22:19:56,588 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-21 22:19:56,589 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-21 22:19:56,590 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-21 22:19:56,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-21 22:19:56,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-21 22:19:56,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-21 22:19:56,598 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-21 22:19:56,600 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-21 22:19:56,600 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-21 22:19:56,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-21 22:19:56,601 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-21 22:19:56,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-21 22:19:56,602 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-21 22:19:56,602 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-21 22:19:56,603 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-21 22:19:56,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-21 22:19:56,604 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-21 22:19:56,606 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-21 22:19:56,606 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-21 22:19:56,607 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-21 22:19:56,608 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-21 22:19:56,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-21 22:19:56,609 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-21 22:19:56,609 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-21 22:19:56,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 22:19:56,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-21 22:19:56,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-21 22:19:56,611 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-21 22:19:56,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-11-21 22:19:56,612 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-21 22:19:56,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-21 22:19:56,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-21 22:19:56,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-21 22:19:56,613 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1
[2023-11-21 22:19:56,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-21 22:19:56,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-21 22:19:56,962 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-21 22:19:56,964 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-21 22:19:56,965 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-21 22:19:56,966 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i
[2023-11-21 22:20:00,025 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-21 22:20:00,376 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-21 22:20:00,377 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i
[2023-11-21 22:20:00,403 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/data/86a8acf22/1b35cba6709e40448c741c68f27ed058/FLAGdf56d1f14
[2023-11-21 22:20:00,417 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/data/86a8acf22/1b35cba6709e40448c741c68f27ed058
[2023-11-21 22:20:00,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-21 22:20:00,426 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-21 22:20:00,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-21 22:20:00,431 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-21 22:20:00,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-21 22:20:00,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:00" (1/1) ...
[2023-11-21 22:20:00,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54959b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:00, skipping insertion in model container
[2023-11-21 22:20:00,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:00" (1/1) ...
[2023-11-21 22:20:00,516 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-21 22:20:01,154 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 22:20:01,172 ERROR L324 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)
[2023-11-21 22:20:01,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@52bbdffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:01, skipping insertion in model container
[2023-11-21 22:20:01,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-21 22:20:01,174 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2023-11-21 22:20:01,177 INFO L158 Benchmark]: Toolchain (without parser) took 749.20ms. Allocated memory is still 155.2MB. Free memory was 118.1MB in the beginning and 100.9MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2023-11-21 22:20:01,177 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 107.0MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-21 22:20:01,178 INFO L158 Benchmark]: CACSL2BoogieTranslator took 744.32ms. Allocated memory is still 155.2MB. Free memory was 117.7MB in the beginning and 100.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2023-11-21 22:20:01,180 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.56ms. Allocated memory is still 107.0MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 744.32ms. Allocated memory is still 155.2MB. Free memory was 117.7MB in the beginning and 100.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 751]: 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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-527bcce
[2023-11-21 22:20:03,654 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-21 22:20:03,786 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2023-11-21 22:20:03,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-21 22:20:03,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-21 22:20:03,855 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-21 22:20:03,856 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-21 22:20:03,857 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-21 22:20:03,858 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-11-21 22:20:03,863 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-11-21 22:20:03,864 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-21 22:20:03,864 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-21 22:20:03,865 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-21 22:20:03,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-21 22:20:03,867 INFO L153 SettingsManager]: * sizeof long=4
[2023-11-21 22:20:03,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-21 22:20:03,868 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-11-21 22:20:03,869 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-21 22:20:03,869 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2023-11-21 22:20:03,870 INFO L153 SettingsManager]: * Bitprecise bitfields=true
[2023-11-21 22:20:03,871 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2023-11-21 22:20:03,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-11-21 22:20:03,872 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2023-11-21 22:20:03,873 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true
[2023-11-21 22:20:03,873 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2023-11-21 22:20:03,873 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-21 22:20:03,874 INFO L153 SettingsManager]: * sizeof long double=12
[2023-11-21 22:20:03,874 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-21 22:20:03,875 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-21 22:20:03,876 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-21 22:20:03,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-11-21 22:20:03,878 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-11-21 22:20:03,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 22:20:03,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-21 22:20:03,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-11-21 22:20:03,879 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF
[2023-11-21 22:20:03,880 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2023-11-21 22:20:03,880 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-11-21 22:20:03,880 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-11-21 22:20:03,881 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-11-21 22:20:03,881 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-11-21 22:20:03,882 INFO L153 SettingsManager]: * Logic for external solver=AUFBV
[2023-11-21 22:20:03,882 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1
[2023-11-21 22:20:04,299 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-21 22:20:04,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-21 22:20:04,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-21 22:20:04,338 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-21 22:20:04,339 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-21 22:20:04,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i
[2023-11-21 22:20:07,642 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-21 22:20:08,000 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-21 22:20:08,000 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i
[2023-11-21 22:20:08,036 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/data/595e80567/545de6e1a9c9485e868a1a4a3a0ceffa/FLAGbf1e3406b
[2023-11-21 22:20:08,055 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/data/595e80567/545de6e1a9c9485e868a1a4a3a0ceffa
[2023-11-21 22:20:08,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-21 22:20:08,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-21 22:20:08,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-21 22:20:08,065 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-21 22:20:08,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-21 22:20:08,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:08" (1/1) ...
[2023-11-21 22:20:08,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba56c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:08, skipping insertion in model container
[2023-11-21 22:20:08,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:20:08" (1/1) ...
[2023-11-21 22:20:08,162 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-21 22:20:08,808 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 22:20:08,823 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2023-11-21 22:20:08,863 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-21 22:20:09,016 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 22:20:09,024 INFO L202 MainTranslator]: Completed pre-run
[2023-11-21 22:20:09,139 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-21 22:20:09,197 INFO L206 MainTranslator]: Completed translation
[2023-11-21 22:20:09,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09 WrapperNode
[2023-11-21 22:20:09,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-21 22:20:09,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-21 22:20:09,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-21 22:20:09,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-21 22:20:09,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ...
[2023-11-21 22:20:09,238 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ...
[2023-11-21 22:20:09,295 INFO L138 Inliner]: procedures = 180, calls = 187, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 634
[2023-11-21 22:20:09,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-21 22:20:09,299 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-21 22:20:09,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-21 22:20:09,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-21 22:20:09,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ...
[2023-11-21 22:20:09,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ...
[2023-11-21 22:20:09,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ...
[2023-11-21 22:20:09,320 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ...
[2023-11-21 22:20:09,381 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ...
[2023-11-21 22:20:09,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ...
[2023-11-21 22:20:09,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ...
[2023-11-21 22:20:09,422 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ...
[2023-11-21 22:20:09,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-21 22:20:09,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-21 22:20:09,446 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-21 22:20:09,446 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-21 22:20:09,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (1/1) ...
[2023-11-21 22:20:09,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2023-11-21 22:20:09,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/z3
[2023-11-21 22:20:09,498 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:09,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2023-11-21 22:20:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1
[2023-11-21 22:20:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2023-11-21 22:20:09,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2023-11-21 22:20:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2023-11-21 22:20:09,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset
[2023-11-21 22:20:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset
[2023-11-21 22:20:09,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2023-11-21 22:20:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-11-21 22:20:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-11-21 22:20:09,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2023-11-21 22:20:09,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2023-11-21 22:20:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-11-21 22:20:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2023-11-21 22:20:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2023-11-21 22:20:09,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-21 22:20:09,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-21 22:20:09,804 INFO L240 CfgBuilder]: Building ICFG
[2023-11-21 22:20:09,806 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-21 22:20:09,810 WARN L820 $ProcedureCfgBuilder]: Label in the middle of a codeblock.
[2023-11-21 22:20:13,146 INFO L281 CfgBuilder]: Performing block encoding
[2023-11-21 22:20:13,376 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-21 22:20:13,377 INFO L308 CfgBuilder]: Removed 31 assume(true) statements.
[2023-11-21 22:20:13,379 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:13 BoogieIcfgContainer
[2023-11-21 22:20:13,379 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-21 22:20:13,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-11-21 22:20:13,381 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-11-21 22:20:13,385 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-11-21 22:20:13,386 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:20:08" (1/3) ...
[2023-11-21 22:20:13,386 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f910bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:13, skipping insertion in model container
[2023-11-21 22:20:13,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:20:09" (2/3) ...
[2023-11-21 22:20:13,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f910bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:20:13, skipping insertion in model container
[2023-11-21 22:20:13,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:20:13" (3/3) ...
[2023-11-21 22:20:13,390 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-1.i
[2023-11-21 22:20:13,410 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-11-21 22:20:13,410 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 330 error locations.
[2023-11-21 22:20:13,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-11-21 22:20:13,489 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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;@55a1189e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-11-21 22:20:13,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 330 error locations.
[2023-11-21 22:20:13,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 602 states, 259 states have (on average 2.525096525096525) internal successors, (654), 596 states have internal predecessors, (654), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:13,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2023-11-21 22:20:13,508 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:13,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1]
[2023-11-21 22:20:13,510 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:13,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:13,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1108029, now seen corresponding path program 1 times
[2023-11-21 22:20:13,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:13,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683012273]
[2023-11-21 22:20:13,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:13,529 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:13,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:13,532 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:13,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2023-11-21 22:20:13,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:13,654 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-21 22:20:13,659 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:13,729 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
[2023-11-21 22:20:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:13,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:13,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:13,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683012273]
[2023-11-21 22:20:13,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683012273] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:13,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:13,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-21 22:20:13,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089526472]
[2023-11-21 22:20:13,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:13,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:20:13,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:13,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:20:13,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:20:13,787 INFO L87 Difference]: Start difference. First operand has 602 states, 259 states have (on average 2.525096525096525) internal successors, (654), 596 states have internal predecessors, (654), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:20:15,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:15,435 INFO L93 Difference]: Finished difference Result 552 states and 599 transitions.
[2023-11-21 22:20:15,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:20:15,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2023-11-21 22:20:15,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:15,461 INFO L225 Difference]: With dead ends: 552
[2023-11-21 22:20:15,461 INFO L226 Difference]: Without dead ends: 551
[2023-11-21 22:20:15,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:20:15,466 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 533 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:15,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 275 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2023-11-21 22:20:15,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states.
[2023-11-21 22:20:15,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 542.
[2023-11-21 22:20:15,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 254 states have (on average 2.2125984251968505) internal successors, (562), 536 states have internal predecessors, (562), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:15,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 588 transitions.
[2023-11-21 22:20:15,543 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 588 transitions. Word has length 3
[2023-11-21 22:20:15,543 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:15,543 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 588 transitions.
[2023-11-21 22:20:15,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:20:15,544 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 588 transitions.
[2023-11-21 22:20:15,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2023-11-21 22:20:15,544 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:15,544 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1]
[2023-11-21 22:20:15,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2023-11-21 22:20:15,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:15,747 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:15,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:15,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1108030, now seen corresponding path program 1 times
[2023-11-21 22:20:15,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:15,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430116164]
[2023-11-21 22:20:15,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:15,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:15,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:15,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:15,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2023-11-21 22:20:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:15,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-21 22:20:15,880 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:15,896 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
[2023-11-21 22:20:15,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:15,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:15,913 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:15,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430116164]
[2023-11-21 22:20:15,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430116164] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:15,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:15,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-21 22:20:15,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405752697]
[2023-11-21 22:20:15,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:15,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:20:15,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:15,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:20:15,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:20:15,922 INFO L87 Difference]: Start difference. First operand 542 states and 588 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:20:17,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:17,873 INFO L93 Difference]: Finished difference Result 601 states and 651 transitions.
[2023-11-21 22:20:17,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:20:17,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3
[2023-11-21 22:20:17,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:17,880 INFO L225 Difference]: With dead ends: 601
[2023-11-21 22:20:17,880 INFO L226 Difference]: Without dead ends: 601
[2023-11-21 22:20:17,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:20:17,882 INFO L413 NwaCegarLoop]: 420 mSDtfsCounter, 228 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:17,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 595 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time]
[2023-11-21 22:20:17,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states.
[2023-11-21 22:20:17,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 555.
[2023-11-21 22:20:17,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 277 states have (on average 2.1985559566787005) internal successors, (609), 549 states have internal predecessors, (609), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:17,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 635 transitions.
[2023-11-21 22:20:17,915 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 635 transitions. Word has length 3
[2023-11-21 22:20:17,915 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:17,915 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 635 transitions.
[2023-11-21 22:20:17,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:20:17,916 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 635 transitions.
[2023-11-21 22:20:17,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2023-11-21 22:20:17,916 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:17,916 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2023-11-21 22:20:17,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0
[2023-11-21 22:20:18,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:18,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr328ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:18,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:18,119 INFO L85 PathProgramCache]: Analyzing trace with hash 34389643, now seen corresponding path program 1 times
[2023-11-21 22:20:18,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:18,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975285391]
[2023-11-21 22:20:18,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:18,120 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:18,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:18,126 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:18,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2023-11-21 22:20:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:18,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-21 22:20:18,221 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:18,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:18,231 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:18,231 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:18,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975285391]
[2023-11-21 22:20:18,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975285391] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:18,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:18,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-21 22:20:18,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356429781]
[2023-11-21 22:20:18,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:18,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:20:18,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:18,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:20:18,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:20:18,233 INFO L87 Difference]: Start difference. First operand 555 states and 635 transitions. Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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)
[2023-11-21 22:20:19,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:19,242 INFO L93 Difference]: Finished difference Result 1068 states and 1208 transitions.
[2023-11-21 22:20:19,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:20:19,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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) Word has length 4
[2023-11-21 22:20:19,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:19,252 INFO L225 Difference]: With dead ends: 1068
[2023-11-21 22:20:19,252 INFO L226 Difference]: Without dead ends: 1068
[2023-11-21 22:20:19,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:20:19,254 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 509 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 1187 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:19,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 1187 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2023-11-21 22:20:19,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states.
[2023-11-21 22:20:19,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 556.
[2023-11-21 22:20:19,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 278 states have (on average 2.194244604316547) internal successors, (610), 550 states have internal predecessors, (610), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 636 transitions.
[2023-11-21 22:20:19,284 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 636 transitions. Word has length 4
[2023-11-21 22:20:19,284 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:19,284 INFO L495 AbstractCegarLoop]: Abstraction has 556 states and 636 transitions.
[2023-11-21 22:20:19,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 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)
[2023-11-21 22:20:19,285 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 636 transitions.
[2023-11-21 22:20:19,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-11-21 22:20:19,285 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:19,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:19,288 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2023-11-21 22:20:19,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:19,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:19,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:19,489 INFO L85 PathProgramCache]: Analyzing trace with hash -214635929, now seen corresponding path program 1 times
[2023-11-21 22:20:19,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:19,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669558312]
[2023-11-21 22:20:19,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:19,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:19,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:19,491 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:19,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2023-11-21 22:20:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:19,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 2 conjunts are in the unsatisfiable core
[2023-11-21 22:20:19,637 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:19,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:19,647 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:19,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669558312]
[2023-11-21 22:20:19,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669558312] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:19,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:19,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-21 22:20:19,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286572317]
[2023-11-21 22:20:19,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:19,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:20:19,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:19,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:20:19,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:20:19,649 INFO L87 Difference]: Start difference. First operand 556 states and 636 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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)
[2023-11-21 22:20:20,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:20,354 INFO L93 Difference]: Finished difference Result 517 states and 596 transitions.
[2023-11-21 22:20:20,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:20:20,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) Word has length 9
[2023-11-21 22:20:20,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:20,360 INFO L225 Difference]: With dead ends: 517
[2023-11-21 22:20:20,360 INFO L226 Difference]: Without dead ends: 517
[2023-11-21 22:20:20,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:20:20,362 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 69 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:20,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 873 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-11-21 22:20:20,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states.
[2023-11-21 22:20:20,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517.
[2023-11-21 22:20:20,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 263 states have (on average 2.167300380228137) internal successors, (570), 511 states have internal predecessors, (570), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:20,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 596 transitions.
[2023-11-21 22:20:20,389 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 596 transitions. Word has length 9
[2023-11-21 22:20:20,390 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:20,390 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 596 transitions.
[2023-11-21 22:20:20,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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)
[2023-11-21 22:20:20,390 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 596 transitions.
[2023-11-21 22:20:20,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2023-11-21 22:20:20,391 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:20,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:20,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2023-11-21 22:20:20,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:20,597 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:20,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:20,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1937249020, now seen corresponding path program 1 times
[2023-11-21 22:20:20,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:20,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1792725533]
[2023-11-21 22:20:20,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:20,598 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:20,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:20,600 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:20,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2023-11-21 22:20:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:20,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-21 22:20:20,760 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:20,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:20,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:20,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:20,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1792725533]
[2023-11-21 22:20:20,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1792725533] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:20,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:20,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-21 22:20:20,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124473419]
[2023-11-21 22:20:20,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:20,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-21 22:20:20,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:20,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-21 22:20:20,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-21 22:20:20,788 INFO L87 Difference]: Start difference. First operand 517 states and 596 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2023-11-21 22:20:21,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:21,677 INFO L93 Difference]: Finished difference Result 503 states and 575 transitions.
[2023-11-21 22:20:21,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-21 22:20:21,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10
[2023-11-21 22:20:21,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:21,684 INFO L225 Difference]: With dead ends: 503
[2023-11-21 22:20:21,684 INFO L226 Difference]: Without dead ends: 503
[2023-11-21 22:20:21,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-21 22:20:21,685 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 58 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1266 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:21,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1266 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2023-11-21 22:20:21,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states.
[2023-11-21 22:20:21,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 502.
[2023-11-21 22:20:21,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 262 states have (on average 2.0916030534351147) internal successors, (548), 496 states have internal predecessors, (548), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:21,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 574 transitions.
[2023-11-21 22:20:21,703 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 574 transitions. Word has length 10
[2023-11-21 22:20:21,704 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:21,704 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 574 transitions.
[2023-11-21 22:20:21,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2023-11-21 22:20:21,704 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 574 transitions.
[2023-11-21 22:20:21,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2023-11-21 22:20:21,705 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:21,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:21,714 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2023-11-21 22:20:21,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:21,909 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:21,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:21,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1318126474, now seen corresponding path program 1 times
[2023-11-21 22:20:21,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:21,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644581026]
[2023-11-21 22:20:21,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:21,911 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:21,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:21,913 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:21,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2023-11-21 22:20:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:22,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-21 22:20:22,080 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:22,086 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
[2023-11-21 22:20:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:22,186 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:22,186 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:22,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644581026]
[2023-11-21 22:20:22,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [644581026] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:22,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:22,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-21 22:20:22,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057315445]
[2023-11-21 22:20:22,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:22,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-21 22:20:22,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:22,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-21 22:20:22,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-21 22:20:22,188 INFO L87 Difference]: Start difference. First operand 502 states and 574 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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)
[2023-11-21 22:20:24,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:24,241 INFO L93 Difference]: Finished difference Result 507 states and 580 transitions.
[2023-11-21 22:20:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-21 22:20:24,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24
[2023-11-21 22:20:24,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:24,246 INFO L225 Difference]: With dead ends: 507
[2023-11-21 22:20:24,246 INFO L226 Difference]: Without dead ends: 507
[2023-11-21 22:20:24,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-21 22:20:24,247 INFO L413 NwaCegarLoop]: 225 mSDtfsCounter, 468 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:24,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [481 Valid, 406 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time]
[2023-11-21 22:20:24,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states.
[2023-11-21 22:20:24,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 498.
[2023-11-21 22:20:24,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 262 states have (on average 2.0763358778625953) internal successors, (544), 492 states have internal predecessors, (544), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:24,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 570 transitions.
[2023-11-21 22:20:24,265 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 570 transitions. Word has length 24
[2023-11-21 22:20:24,265 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:24,265 INFO L495 AbstractCegarLoop]: Abstraction has 498 states and 570 transitions.
[2023-11-21 22:20:24,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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)
[2023-11-21 22:20:24,266 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 570 transitions.
[2023-11-21 22:20:24,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2023-11-21 22:20:24,266 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:24,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:24,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2023-11-21 22:20:24,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:24,470 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:24,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:24,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1318126475, now seen corresponding path program 1 times
[2023-11-21 22:20:24,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:24,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599105637]
[2023-11-21 22:20:24,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:24,471 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:24,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:24,474 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:24,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2023-11-21 22:20:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:24,627 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-21 22:20:24,629 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:24,639 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
[2023-11-21 22:20:24,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:24,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:24,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:24,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599105637]
[2023-11-21 22:20:24,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599105637] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:24,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:24,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-21 22:20:24,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622215853]
[2023-11-21 22:20:24,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:24,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-21 22:20:24,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:24,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-21 22:20:24,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-21 22:20:24,907 INFO L87 Difference]: Start difference. First operand 498 states and 570 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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)
[2023-11-21 22:20:27,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:27,180 INFO L93 Difference]: Finished difference Result 540 states and 582 transitions.
[2023-11-21 22:20:27,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-21 22:20:27,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24
[2023-11-21 22:20:27,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:27,186 INFO L225 Difference]: With dead ends: 540
[2023-11-21 22:20:27,187 INFO L226 Difference]: Without dead ends: 540
[2023-11-21 22:20:27,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-21 22:20:27,202 INFO L413 NwaCegarLoop]: 386 mSDtfsCounter, 165 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 634 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 634 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:27,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 757 Invalid, 637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 634 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2023-11-21 22:20:27,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states.
[2023-11-21 22:20:27,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 494.
[2023-11-21 22:20:27,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 262 states have (on average 2.0610687022900764) internal successors, (540), 488 states have internal predecessors, (540), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:27,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 566 transitions.
[2023-11-21 22:20:27,222 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 566 transitions. Word has length 24
[2023-11-21 22:20:27,223 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:27,223 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 566 transitions.
[2023-11-21 22:20:27,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 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)
[2023-11-21 22:20:27,224 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 566 transitions.
[2023-11-21 22:20:27,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2023-11-21 22:20:27,226 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:27,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:27,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2023-11-21 22:20:27,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:27,430 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:27,430 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:27,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1837071356, now seen corresponding path program 1 times
[2023-11-21 22:20:27,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:27,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [259170105]
[2023-11-21 22:20:27,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:27,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:27,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:27,436 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:27,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2023-11-21 22:20:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:27,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-21 22:20:27,640 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:27,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:27,699 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:27,699 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:27,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [259170105]
[2023-11-21 22:20:27,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [259170105] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:27,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:27,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-21 22:20:27,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503580451]
[2023-11-21 22:20:27,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:27,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-21 22:20:27,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:27,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-21 22:20:27,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-21 22:20:27,702 INFO L87 Difference]: Start difference. First operand 494 states and 566 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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)
[2023-11-21 22:20:28,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:28,495 INFO L93 Difference]: Finished difference Result 488 states and 556 transitions.
[2023-11-21 22:20:28,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-21 22:20:28,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40
[2023-11-21 22:20:28,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:28,500 INFO L225 Difference]: With dead ends: 488
[2023-11-21 22:20:28,500 INFO L226 Difference]: Without dead ends: 488
[2023-11-21 22:20:28,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-21 22:20:28,501 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 23 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1252 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:28,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1252 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-11-21 22:20:28,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states.
[2023-11-21 22:20:28,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488.
[2023-11-21 22:20:28,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 256 states have (on average 2.0703125) internal successors, (530), 482 states have internal predecessors, (530), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:28,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 556 transitions.
[2023-11-21 22:20:28,516 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 556 transitions. Word has length 40
[2023-11-21 22:20:28,516 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:28,516 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 556 transitions.
[2023-11-21 22:20:28,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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)
[2023-11-21 22:20:28,517 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 556 transitions.
[2023-11-21 22:20:28,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2023-11-21 22:20:28,518 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:28,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:28,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2023-11-21 22:20:28,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:28,722 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:28,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:28,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1198430363, now seen corresponding path program 1 times
[2023-11-21 22:20:28,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:28,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188078094]
[2023-11-21 22:20:28,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:28,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:28,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:28,725 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:28,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2023-11-21 22:20:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:28,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-21 22:20:28,989 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:29,364 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:29,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:29,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188078094]
[2023-11-21 22:20:29,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188078094] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:29,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:29,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-11-21 22:20:29,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955639261]
[2023-11-21 22:20:29,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:29,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2023-11-21 22:20:29,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:29,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2023-11-21 22:20:29,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:20:29,366 INFO L87 Difference]: Start difference. First operand 488 states and 556 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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)
[2023-11-21 22:20:30,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:30,091 INFO L93 Difference]: Finished difference Result 529 states and 597 transitions.
[2023-11-21 22:20:30,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2023-11-21 22:20:30,093 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44
[2023-11-21 22:20:30,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:30,096 INFO L225 Difference]: With dead ends: 529
[2023-11-21 22:20:30,097 INFO L226 Difference]: Without dead ends: 529
[2023-11-21 22:20:30,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2023-11-21 22:20:30,098 INFO L413 NwaCegarLoop]: 437 mSDtfsCounter, 59 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:30,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 796 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time]
[2023-11-21 22:20:30,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states.
[2023-11-21 22:20:30,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 529.
[2023-11-21 22:20:30,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 297 states have (on average 1.9225589225589226) internal successors, (571), 523 states have internal predecessors, (571), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:30,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 597 transitions.
[2023-11-21 22:20:30,113 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 597 transitions. Word has length 44
[2023-11-21 22:20:30,113 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:30,114 INFO L495 AbstractCegarLoop]: Abstraction has 529 states and 597 transitions.
[2023-11-21 22:20:30,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 2 states have internal predecessors, (44), 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)
[2023-11-21 22:20:30,114 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 597 transitions.
[2023-11-21 22:20:30,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2023-11-21 22:20:30,115 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:30,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:30,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0
[2023-11-21 22:20:30,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:30,320 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:30,320 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:30,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1516705745, now seen corresponding path program 1 times
[2023-11-21 22:20:30,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:30,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [37047617]
[2023-11-21 22:20:30,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:30,321 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:30,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:30,323 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:30,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2023-11-21 22:20:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:30,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-11-21 22:20:30,682 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:30,696 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
[2023-11-21 22:20:30,707 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
[2023-11-21 22:20:31,371 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-11-21 22:20:31,373 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
[2023-11-21 22:20:31,395 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2023-11-21 22:20:31,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2023-11-21 22:20:31,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:31,419 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:31,420 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:31,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [37047617]
[2023-11-21 22:20:31,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [37047617] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:31,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:31,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2023-11-21 22:20:31,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623898272]
[2023-11-21 22:20:31,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:31,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-21 22:20:31,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:31,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-21 22:20:31,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-21 22:20:31,422 INFO L87 Difference]: Start difference. First operand 529 states and 597 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 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)
[2023-11-21 22:20:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:33,027 INFO L93 Difference]: Finished difference Result 500 states and 569 transitions.
[2023-11-21 22:20:33,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-21 22:20:33,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47
[2023-11-21 22:20:33,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:33,033 INFO L225 Difference]: With dead ends: 500
[2023-11-21 22:20:33,033 INFO L226 Difference]: Without dead ends: 500
[2023-11-21 22:20:33,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2023-11-21 22:20:33,034 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 691 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:33,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 191 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time]
[2023-11-21 22:20:33,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states.
[2023-11-21 22:20:33,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 468.
[2023-11-21 22:20:33,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 274 states have (on average 1.7372262773722629) internal successors, (476), 462 states have internal predecessors, (476), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:33,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 502 transitions.
[2023-11-21 22:20:33,048 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 502 transitions. Word has length 47
[2023-11-21 22:20:33,049 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:33,049 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 502 transitions.
[2023-11-21 22:20:33,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 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)
[2023-11-21 22:20:33,049 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 502 transitions.
[2023-11-21 22:20:33,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2023-11-21 22:20:33,050 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:33,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:33,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2023-11-21 22:20:33,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:33,257 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:33,258 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:33,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1278085904, now seen corresponding path program 1 times
[2023-11-21 22:20:33,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:33,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [469468588]
[2023-11-21 22:20:33,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:33,260 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:33,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:33,262 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:33,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2023-11-21 22:20:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:33,530 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-11-21 22:20:33,534 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:33,542 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
[2023-11-21 22:20:33,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-11-21 22:20:33,593 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11
[2023-11-21 22:20:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:33,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:33,607 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:33,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [469468588]
[2023-11-21 22:20:33,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [469468588] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:33,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:33,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-21 22:20:33,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379691262]
[2023-11-21 22:20:33,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:33,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-21 22:20:33,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:33,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-21 22:20:33,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-21 22:20:33,610 INFO L87 Difference]: Start difference. First operand 468 states and 502 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:20:35,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:35,921 INFO L93 Difference]: Finished difference Result 467 states and 501 transitions.
[2023-11-21 22:20:35,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-21 22:20:35,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51
[2023-11-21 22:20:35,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:35,927 INFO L225 Difference]: With dead ends: 467
[2023-11-21 22:20:35,928 INFO L226 Difference]: Without dead ends: 467
[2023-11-21 22:20:35,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-11-21 22:20:35,929 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 3 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:35,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1035 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time]
[2023-11-21 22:20:35,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states.
[2023-11-21 22:20:35,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467.
[2023-11-21 22:20:35,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 274 states have (on average 1.7335766423357664) internal successors, (475), 461 states have internal predecessors, (475), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:35,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 501 transitions.
[2023-11-21 22:20:35,944 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 501 transitions. Word has length 51
[2023-11-21 22:20:35,944 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:35,944 INFO L495 AbstractCegarLoop]: Abstraction has 467 states and 501 transitions.
[2023-11-21 22:20:35,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:20:35,945 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 501 transitions.
[2023-11-21 22:20:35,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52
[2023-11-21 22:20:35,948 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:35,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:35,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0
[2023-11-21 22:20:36,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:36,154 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:36,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:36,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1278085905, now seen corresponding path program 1 times
[2023-11-21 22:20:36,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:36,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654922277]
[2023-11-21 22:20:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:36,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:36,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:36,157 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:36,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2023-11-21 22:20:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:36,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-11-21 22:20:36,425 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:36,443 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
[2023-11-21 22:20:36,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1
[2023-11-21 22:20:36,477 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9
[2023-11-21 22:20:36,528 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9
[2023-11-21 22:20:36,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:36,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:36,553 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:36,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654922277]
[2023-11-21 22:20:36,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1654922277] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:36,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:36,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-21 22:20:36,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791605264]
[2023-11-21 22:20:36,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:36,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-11-21 22:20:36,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:36,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-11-21 22:20:36,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2023-11-21 22:20:36,556 INFO L87 Difference]: Start difference. First operand 467 states and 501 transitions. Second operand has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:20:39,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:39,229 INFO L93 Difference]: Finished difference Result 466 states and 500 transitions.
[2023-11-21 22:20:39,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-11-21 22:20:39,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51
[2023-11-21 22:20:39,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:39,235 INFO L225 Difference]: With dead ends: 466
[2023-11-21 22:20:39,235 INFO L226 Difference]: Without dead ends: 466
[2023-11-21 22:20:39,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2023-11-21 22:20:39,236 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 1 mSDsluCounter, 649 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:39,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1045 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2023-11-21 22:20:39,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states.
[2023-11-21 22:20:39,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466.
[2023-11-21 22:20:39,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 273 states have (on average 1.7362637362637363) internal successors, (474), 460 states have internal predecessors, (474), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13)
[2023-11-21 22:20:39,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 500 transitions.
[2023-11-21 22:20:39,249 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 500 transitions. Word has length 51
[2023-11-21 22:20:39,249 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:39,249 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 500 transitions.
[2023-11-21 22:20:39,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.75) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-21 22:20:39,250 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 500 transitions.
[2023-11-21 22:20:39,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2023-11-21 22:20:39,251 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:39,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:39,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0
[2023-11-21 22:20:39,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:39,456 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:39,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:39,457 INFO L85 PathProgramCache]: Analyzing trace with hash 747501622, now seen corresponding path program 1 times
[2023-11-21 22:20:39,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:39,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456685544]
[2023-11-21 22:20:39,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:39,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:39,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:39,459 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:39,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2023-11-21 22:20:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:39,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 3 conjunts are in the unsatisfiable core
[2023-11-21 22:20:39,760 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:39,793 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-11-21 22:20:39,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:39,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456685544]
[2023-11-21 22:20:39,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456685544] provided 1 perfect and 0 imperfect interpolant sequences
[2023-11-21 22:20:39,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-11-21 22:20:39,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-11-21 22:20:39,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436914470]
[2023-11-21 22:20:39,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-11-21 22:20:39,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-11-21 22:20:39,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:39,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-11-21 22:20:39,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-11-21 22:20:39,798 INFO L87 Difference]: Start difference. First operand 466 states and 500 transitions. Second operand has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-21 22:20:40,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:40,652 INFO L93 Difference]: Finished difference Result 468 states and 503 transitions.
[2023-11-21 22:20:40,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-11-21 22:20:40,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57
[2023-11-21 22:20:40,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:40,657 INFO L225 Difference]: With dead ends: 468
[2023-11-21 22:20:40,657 INFO L226 Difference]: Without dead ends: 468
[2023-11-21 22:20:40,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-11-21 22:20:40,658 INFO L413 NwaCegarLoop]: 396 mSDtfsCounter, 1 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1185 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:40,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1185 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2023-11-21 22:20:40,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states.
[2023-11-21 22:20:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 468.
[2023-11-21 22:20:40,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 274 states have (on average 1.7372262773722629) internal successors, (476), 462 states have internal predecessors, (476), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14)
[2023-11-21 22:20:40,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 503 transitions.
[2023-11-21 22:20:40,684 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 503 transitions. Word has length 57
[2023-11-21 22:20:40,685 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:40,685 INFO L495 AbstractCegarLoop]: Abstraction has 468 states and 503 transitions.
[2023-11-21 22:20:40,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.333333333333332) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2023-11-21 22:20:40,685 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 503 transitions.
[2023-11-21 22:20:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59
[2023-11-21 22:20:40,687 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:40,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:40,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2023-11-21 22:20:40,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:40,894 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:40,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:40,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1919230679, now seen corresponding path program 1 times
[2023-11-21 22:20:40,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:40,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481080510]
[2023-11-21 22:20:40,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-21 22:20:40,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:40,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:40,897 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:40,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2023-11-21 22:20:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-11-21 22:20:41,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-11-21 22:20:41,179 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:41,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:41,218 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-21 22:20:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:41,329 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:41,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481080510]
[2023-11-21 22:20:41,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481080510] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-21 22:20:41,330 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-21 22:20:41,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8
[2023-11-21 22:20:41,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061291340]
[2023-11-21 22:20:41,331 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-21 22:20:41,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2023-11-21 22:20:41,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:41,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2023-11-21 22:20:41,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2023-11-21 22:20:41,333 INFO L87 Difference]: Start difference. First operand 468 states and 503 transitions. Second operand has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-21 22:20:42,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:42,419 INFO L93 Difference]: Finished difference Result 477 states and 517 transitions.
[2023-11-21 22:20:42,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2023-11-21 22:20:42,425 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 58
[2023-11-21 22:20:42,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:42,430 INFO L225 Difference]: With dead ends: 477
[2023-11-21 22:20:42,431 INFO L226 Difference]: Without dead ends: 477
[2023-11-21 22:20:42,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156
[2023-11-21 22:20:42,432 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 6 mSDsluCounter, 788 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:42,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1183 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2023-11-21 22:20:42,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states.
[2023-11-21 22:20:42,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 476.
[2023-11-21 22:20:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 281 states have (on average 1.7402135231316727) internal successors, (489), 469 states have internal predecessors, (489), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14)
[2023-11-21 22:20:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 516 transitions.
[2023-11-21 22:20:42,447 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 516 transitions. Word has length 58
[2023-11-21 22:20:42,447 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:42,448 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 516 transitions.
[2023-11-21 22:20:42,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.833333333333334) internal successors, (59), 8 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-21 22:20:42,448 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 516 transitions.
[2023-11-21 22:20:42,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62
[2023-11-21 22:20:42,449 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:42,449 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:42,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0
[2023-11-21 22:20:42,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:42,655 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:42,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:42,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2119440502, now seen corresponding path program 2 times
[2023-11-21 22:20:42,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:42,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [799426013]
[2023-11-21 22:20:42,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-11-21 22:20:42,657 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:42,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:42,658 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:42,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2023-11-21 22:20:43,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-11-21 22:20:43,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-21 22:20:43,140 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-11-21 22:20:43,142 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:43,223 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:43,223 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-21 22:20:43,466 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:43,466 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:43,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [799426013]
[2023-11-21 22:20:43,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [799426013] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-21 22:20:43,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-21 22:20:43,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14
[2023-11-21 22:20:43,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908474108]
[2023-11-21 22:20:43,467 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-21 22:20:43,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2023-11-21 22:20:43,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:43,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2023-11-21 22:20:43,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182
[2023-11-21 22:20:43,470 INFO L87 Difference]: Start difference. First operand 476 states and 516 transitions. Second operand has 14 states, 12 states have (on average 5.416666666666667) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-21 22:20:46,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-11-21 22:20:46,049 INFO L93 Difference]: Finished difference Result 491 states and 538 transitions.
[2023-11-21 22:20:46,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2023-11-21 22:20:46,050 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.416666666666667) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 61
[2023-11-21 22:20:46,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-11-21 22:20:46,053 INFO L225 Difference]: With dead ends: 491
[2023-11-21 22:20:46,053 INFO L226 Difference]: Without dead ends: 489
[2023-11-21 22:20:46,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756
[2023-11-21 22:20:46,055 INFO L413 NwaCegarLoop]: 395 mSDtfsCounter, 12 mSDsluCounter, 2756 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2023-11-21 22:20:46,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 3151 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2023-11-21 22:20:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states.
[2023-11-21 22:20:46,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 485.
[2023-11-21 22:20:46,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 290 states have (on average 1.7275862068965517) internal successors, (501), 478 states have internal predecessors, (501), 13 states have call successors, (13), 3 states have call predecessors, (13), 4 states have return successors, (14), 4 states have call predecessors, (14), 13 states have call successors, (14)
[2023-11-21 22:20:46,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 528 transitions.
[2023-11-21 22:20:46,070 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 528 transitions. Word has length 61
[2023-11-21 22:20:46,071 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-11-21 22:20:46,071 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 528 transitions.
[2023-11-21 22:20:46,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.416666666666667) internal successors, (65), 14 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2023-11-21 22:20:46,071 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 528 transitions.
[2023-11-21 22:20:46,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68
[2023-11-21 22:20:46,072 INFO L187 NwaCegarLoop]: Found error trace
[2023-11-21 22:20:46,073 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-11-21 22:20:46,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0
[2023-11-21 22:20:46,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:46,279 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 327 more)] ===
[2023-11-21 22:20:46,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-21 22:20:46,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1181699286, now seen corresponding path program 3 times
[2023-11-21 22:20:46,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2023-11-21 22:20:46,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1501100202]
[2023-11-21 22:20:46,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-11-21 22:20:46,280 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2023-11-21 22:20:46,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat
[2023-11-21 22:20:46,281 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2023-11-21 22:20:46,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80381889-8fd4-4967-aad5-8da4658aab2a/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2023-11-21 22:20:46,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s)
[2023-11-21 22:20:46,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-11-21 22:20:46,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 14 conjunts are in the unsatisfiable core
[2023-11-21 22:20:46,952 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-11-21 22:20:47,177 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:47,178 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-11-21 22:20:47,980 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-11-21 22:20:47,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2023-11-21 22:20:47,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1501100202]
[2023-11-21 22:20:47,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1501100202] provided 0 perfect and 2 imperfect interpolant sequences
[2023-11-21 22:20:47,981 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-11-21 22:20:47,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26
[2023-11-21 22:20:47,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845018645]
[2023-11-21 22:20:47,981 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-11-21 22:20:47,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states
[2023-11-21 22:20:47,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2023-11-21 22:20:47,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants.
[2023-11-21 22:20:47,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650
[2023-11-21 22:20:47,984 INFO L87 Difference]: Start difference. First operand 485 states and 528 transitions. Second operand has 26 states, 24 states have (on average 3.2083333333333335) internal successors, (77), 26 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)