./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_4.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 5e519f3a
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_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --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 4318218de1a670b98e217596890d501e5109c78977de7e98dfa51804dcb18c15
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 20:42:47,793 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:42:47,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:42:47,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:42:47,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:42:47,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:42:47,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:42:47,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:42:47,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:42:47,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:42:47,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:42:47,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:42:47,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:42:47,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:42:47,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:42:47,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:42:47,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:42:47,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:42:47,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:42:47,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:42:47,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:42:47,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:42:47,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:42:47,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:42:47,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:42:47,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:42:47,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:42:47,873 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:42:47,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:42:47,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:42:47,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:42:47,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:42:47,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:42:47,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:42:47,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:42:47,881 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:42:47,882 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:42:47,882 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:42:47,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:42:47,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:42:47,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:42:47,886 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2022-11-02 20:42:47,914 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:42:47,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:42:47,915 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:42:47,915 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:42:47,916 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:42:47,917 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:42:47,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:42:47,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:42:47,919 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:42:47,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:42:47,919 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:42:47,920 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-11-02 20:42:47,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:42:47,921 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:42:47,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:42:47,921 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2022-11-02 20:42:47,922 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2022-11-02 20:42:47,922 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2022-11-02 20:42:47,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:42:47,923 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-02 20:42:47,923 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:42:47,924 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:42:47,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:42:47,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:42:47,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:42:47,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:42:47,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:42:47,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:42:47,927 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-02 20:42:47,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-02 20:42:47,927 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
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_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4318218de1a670b98e217596890d501e5109c78977de7e98dfa51804dcb18c15
[2022-11-02 20:42:48,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:42:48,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:42:48,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:42:48,302 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:42:48,303 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:42:48,304 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_4.i
[2022-11-02 20:42:48,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/data/fe950706d/c17a4696741042ca8c061cdcdfe5aa09/FLAGf3a98590a
[2022-11-02 20:42:48,966 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:42:48,967 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/sv-benchmarks/c/ldv-memsafety/memleaks_test23_4.i
[2022-11-02 20:42:48,984 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/data/fe950706d/c17a4696741042ca8c061cdcdfe5aa09/FLAGf3a98590a
[2022-11-02 20:42:49,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/data/fe950706d/c17a4696741042ca8c061cdcdfe5aa09
[2022-11-02 20:42:49,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:42:49,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:42:49,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:42:49,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:42:49,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:42:49,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:49" (1/1) ...
[2022-11-02 20:42:49,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57cdf616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:49, skipping insertion in model container
[2022-11-02 20:42:49,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:49" (1/1) ...
[2022-11-02 20:42:49,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:42:49,342 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:42:49,892 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:42:49,931 ERROR L326 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)
[2022-11-02 20:42:49,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6018a89f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:49, skipping insertion in model container
[2022-11-02 20:42:49,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:42:49,932 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2022-11-02 20:42:49,936 INFO L158 Benchmark]: Toolchain (without parser) took 687.57ms. Allocated memory is still 109.1MB. Free memory was 68.3MB in the beginning and 79.0MB in the end (delta: -10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-02 20:42:49,937 INFO L158 Benchmark]: CDTParser took 5.12ms. Allocated memory is still 109.1MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:42:49,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 684.60ms. Allocated memory is still 109.1MB. Free memory was 68.1MB in the beginning and 79.0MB in the end (delta: -10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:42:49,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 5.12ms. Allocated memory is still 109.1MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 684.60ms. Allocated memory is still 109.1MB. Free memory was 68.1MB in the beginning and 79.0MB in the end (delta: -10.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 576]: 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_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --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 4318218de1a670b98e217596890d501e5109c78977de7e98dfa51804dcb18c15
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-5e519f3
[2022-11-02 20:42:52,413 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-02 20:42:52,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-02 20:42:52,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-02 20:42:52,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-02 20:42:52,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-02 20:42:52,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-02 20:42:52,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-02 20:42:52,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-02 20:42:52,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-02 20:42:52,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-02 20:42:52,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-02 20:42:52,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-02 20:42:52,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-02 20:42:52,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-02 20:42:52,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-02 20:42:52,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-02 20:42:52,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-02 20:42:52,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-02 20:42:52,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-02 20:42:52,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-02 20:42:52,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-02 20:42:52,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-02 20:42:52,530 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-02 20:42:52,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-02 20:42:52,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-02 20:42:52,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-02 20:42:52,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-02 20:42:52,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-02 20:42:52,545 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-02 20:42:52,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-02 20:42:52,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-02 20:42:52,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-02 20:42:52,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-02 20:42:52,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-02 20:42:52,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-02 20:42:52,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-02 20:42:52,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-02 20:42:52,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-02 20:42:52,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-02 20:42:52,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-02 20:42:52,557 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf
[2022-11-02 20:42:52,612 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-02 20:42:52,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-02 20:42:52,613 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-02 20:42:52,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-02 20:42:52,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-02 20:42:52,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-02 20:42:52,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-02 20:42:52,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-02 20:42:52,617 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-02 20:42:52,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-02 20:42:52,619 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-02 20:42:52,619 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-11-02 20:42:52,619 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-02 20:42:52,620 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-02 20:42:52,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-02 20:42:52,620 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2022-11-02 20:42:52,621 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2022-11-02 20:42:52,621 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2022-11-02 20:42:52,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-02 20:42:52,621 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-02 20:42:52,622 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-11-02 20:42:52,622 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-02 20:42:52,622 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-02 20:42:52,622 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-02 20:42:52,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-02 20:42:52,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-02 20:42:52,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-02 20:42:52,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:42:52,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-02 20:42:52,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-02 20:42:52,625 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-11-02 20:42:52,625 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-11-02 20:42:52,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-02 20:42:52,626 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
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_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4318218de1a670b98e217596890d501e5109c78977de7e98dfa51804dcb18c15
[2022-11-02 20:42:53,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-02 20:42:53,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-02 20:42:53,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-02 20:42:53,069 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-02 20:42:53,070 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-02 20:42:53,072 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-memsafety/memleaks_test23_4.i
[2022-11-02 20:42:53,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/data/16db127b4/968a177b62884be1b814585952efc9a5/FLAGf401f58fb
[2022-11-02 20:42:53,880 INFO L306 CDTParser]: Found 1 translation units.
[2022-11-02 20:42:53,890 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/sv-benchmarks/c/ldv-memsafety/memleaks_test23_4.i
[2022-11-02 20:42:53,915 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/data/16db127b4/968a177b62884be1b814585952efc9a5/FLAGf401f58fb
[2022-11-02 20:42:54,124 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/data/16db127b4/968a177b62884be1b814585952efc9a5
[2022-11-02 20:42:54,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-02 20:42:54,130 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-02 20:42:54,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-02 20:42:54,133 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-02 20:42:54,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-02 20:42:54,138 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:54" (1/1) ...
[2022-11-02 20:42:54,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e0bb70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:54, skipping insertion in model container
[2022-11-02 20:42:54,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:42:54" (1/1) ...
[2022-11-02 20:42:54,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-02 20:42:54,217 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:42:54,744 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:42:54,775 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2022-11-02 20:42:54,790 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-02 20:42:54,899 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:42:54,915 INFO L203 MainTranslator]: Completed pre-run
[2022-11-02 20:42:55,016 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-02 20:42:55,058 INFO L208 MainTranslator]: Completed translation
[2022-11-02 20:42:55,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55 WrapperNode
[2022-11-02 20:42:55,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-02 20:42:55,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-02 20:42:55,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-02 20:42:55,061 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-02 20:42:55,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (1/1) ...
[2022-11-02 20:42:55,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (1/1) ...
[2022-11-02 20:42:55,118 INFO L138 Inliner]: procedures = 174, calls = 117, calls flagged for inlining = 29, calls inlined = 14, statements flattened = 184
[2022-11-02 20:42:55,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-02 20:42:55,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-02 20:42:55,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-02 20:42:55,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-02 20:42:55,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (1/1) ...
[2022-11-02 20:42:55,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (1/1) ...
[2022-11-02 20:42:55,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (1/1) ...
[2022-11-02 20:42:55,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (1/1) ...
[2022-11-02 20:42:55,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (1/1) ...
[2022-11-02 20:42:55,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (1/1) ...
[2022-11-02 20:42:55,155 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (1/1) ...
[2022-11-02 20:42:55,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (1/1) ...
[2022-11-02 20:42:55,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-02 20:42:55,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-02 20:42:55,163 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-02 20:42:55,163 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-02 20:42:55,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (1/1) ...
[2022-11-02 20:42:55,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-02 20:42:55,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/z3
[2022-11-02 20:42:55,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-02 20:42:55,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-02 20:42:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2022-11-02 20:42:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD
[2022-11-02 20:42:55,338 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD
[2022-11-02 20:42:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add
[2022-11-02 20:42:55,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add
[2022-11-02 20:42:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc
[2022-11-02 20:42:55,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc
[2022-11-02 20:42:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-11-02 20:42:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-02 20:42:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure free_reports
[2022-11-02 20:42:55,342 INFO L138 BoogieDeclarations]: Found implementation of procedure free_reports
[2022-11-02 20:42:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-02 20:42:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2022-11-02 20:42:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2022-11-02 20:42:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2022-11-02 20:42:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-02 20:42:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$
[2022-11-02 20:42:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del
[2022-11-02 20:42:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del
[2022-11-02 20:42:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc
[2022-11-02 20:42:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc
[2022-11-02 20:42:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-02 20:42:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-02 20:42:55,543 INFO L235 CfgBuilder]: Building ICFG
[2022-11-02 20:42:55,545 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-02 20:42:56,497 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-02 20:42:56,506 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-02 20:42:56,506 INFO L300 CfgBuilder]: Removed 2 assume(true) statements.
[2022-11-02 20:42:56,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:56 BoogieIcfgContainer
[2022-11-02 20:42:56,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-02 20:42:56,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-02 20:42:56,512 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-02 20:42:56,515 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-02 20:42:56,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:42:54" (1/3) ...
[2022-11-02 20:42:56,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2f1a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:56, skipping insertion in model container
[2022-11-02 20:42:56,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:42:55" (2/3) ...
[2022-11-02 20:42:56,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2f1a89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:42:56, skipping insertion in model container
[2022-11-02 20:42:56,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:56" (3/3) ...
[2022-11-02 20:42:56,518 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test23_4.i
[2022-11-02 20:42:56,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-02 20:42:56,538 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations.
[2022-11-02 20:42:56,591 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-02 20:42:56,601 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=FINITE_AUTOMATA, 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;@2b3a62b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-02 20:42:56,601 INFO L358 AbstractCegarLoop]: Starting to check reachability of 76 error locations.
[2022-11-02 20:42:56,607 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 107 states have (on average 1.841121495327103) internal successors, (197), 183 states have internal predecessors, (197), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2022-11-02 20:42:56,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-11-02 20:42:56,615 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:42:56,615 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:42:56,618 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:42:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:42:56,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1838385922, now seen corresponding path program 1 times
[2022-11-02 20:42:56,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:42:56,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816054525]
[2022-11-02 20:42:56,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:42:56,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:42:56,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:42:56,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:42:56,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2022-11-02 20:42:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:42:56,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-11-02 20:42:56,804 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:42:56,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:42:56,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:42:56,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:42:56,986 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:42:56,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816054525]
[2022-11-02 20:42:56,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816054525] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:42:56,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:42:56,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-02 20:42:56,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011163240]
[2022-11-02 20:42:56,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:42:56,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 20:42:56,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:42:57,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 20:42:57,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:42:57,048 INFO L87 Difference]: Start difference. First operand has 198 states, 107 states have (on average 1.841121495327103) internal successors, (197), 183 states have internal predecessors, (197), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:42:58,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:42:58,041 INFO L93 Difference]: Finished difference Result 225 states and 241 transitions.
[2022-11-02 20:42:58,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-11-02 20:42:58,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-11-02 20:42:58,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:42:58,063 INFO L225 Difference]: With dead ends: 225
[2022-11-02 20:42:58,064 INFO L226 Difference]: Without dead ends: 221
[2022-11-02 20:42:58,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:42:58,078 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 28 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2022-11-02 20:42:58,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 813 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time]
[2022-11-02 20:42:58,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states.
[2022-11-02 20:42:58,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 205.
[2022-11-02 20:42:58,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 113 states have (on average 1.7876106194690264) internal successors, (202), 188 states have internal predecessors, (202), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10)
[2022-11-02 20:42:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 221 transitions.
[2022-11-02 20:42:58,168 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 221 transitions. Word has length 12
[2022-11-02 20:42:58,168 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:42:58,169 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 221 transitions.
[2022-11-02 20:42:58,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:42:58,169 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 221 transitions.
[2022-11-02 20:42:58,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-11-02 20:42:58,170 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:42:58,170 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:42:58,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2022-11-02 20:42:58,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:42:58,382 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:42:58,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:42:58,383 INFO L85 PathProgramCache]: Analyzing trace with hash -1838385921, now seen corresponding path program 1 times
[2022-11-02 20:42:58,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:42:58,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [838546702]
[2022-11-02 20:42:58,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:42:58,384 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:42:58,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:42:58,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:42:58,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-11-02 20:42:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:42:58,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 14 conjunts are in the unsatisfiable core
[2022-11-02 20:42:58,495 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:42:58,529 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:42:58,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:42:58,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:42:58,691 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:42:58,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [838546702]
[2022-11-02 20:42:58,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [838546702] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:42:58,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:42:58,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-11-02 20:42:58,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138038375]
[2022-11-02 20:42:58,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:42:58,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-11-02 20:42:58,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:42:58,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-11-02 20:42:58,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:42:58,694 INFO L87 Difference]: Start difference. First operand 205 states and 221 transitions. Second operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:42:59,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:42:59,803 INFO L93 Difference]: Finished difference Result 230 states and 245 transitions.
[2022-11-02 20:42:59,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-11-02 20:42:59,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-11-02 20:42:59,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:42:59,807 INFO L225 Difference]: With dead ends: 230
[2022-11-02 20:42:59,807 INFO L226 Difference]: Without dead ends: 230
[2022-11-02 20:42:59,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90
[2022-11-02 20:42:59,808 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 35 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1056 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:42:59,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1056 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time]
[2022-11-02 20:42:59,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states.
[2022-11-02 20:42:59,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 205.
[2022-11-02 20:42:59,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 113 states have (on average 1.7699115044247788) internal successors, (200), 188 states have internal predecessors, (200), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10)
[2022-11-02 20:42:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 219 transitions.
[2022-11-02 20:42:59,834 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 219 transitions. Word has length 12
[2022-11-02 20:42:59,834 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:42:59,834 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 219 transitions.
[2022-11-02 20:42:59,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:42:59,835 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 219 transitions.
[2022-11-02 20:42:59,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-11-02 20:42:59,836 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:42:59,836 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:42:59,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:00,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:00,048 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:00,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:00,048 INFO L85 PathProgramCache]: Analyzing trace with hash -95575587, now seen corresponding path program 1 times
[2022-11-02 20:43:00,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:00,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668105936]
[2022-11-02 20:43:00,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:00,049 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:00,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:00,050 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:00,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2022-11-02 20:43:00,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:00,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-11-02 20:43:00,137 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:00,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:00,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:00,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668105936]
[2022-11-02 20:43:00,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668105936] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:00,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:00,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-02 20:43:00,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73919735]
[2022-11-02 20:43:00,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:00,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:43:00,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:00,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:43:00,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:43:00,210 INFO L87 Difference]: Start difference. First operand 205 states and 219 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:43:00,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:00,257 INFO L93 Difference]: Finished difference Result 217 states and 231 transitions.
[2022-11-02 20:43:00,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:43:00,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12
[2022-11-02 20:43:00,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:00,262 INFO L225 Difference]: With dead ends: 217
[2022-11-02 20:43:00,262 INFO L226 Difference]: Without dead ends: 217
[2022-11-02 20:43:00,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:43:00,267 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 20 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:00,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 812 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:43:00,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states.
[2022-11-02 20:43:00,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 196.
[2022-11-02 20:43:00,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 109 states have (on average 1.761467889908257) internal successors, (192), 180 states have internal predecessors, (192), 8 states have call successors, (8), 6 states have call predecessors, (8), 7 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9)
[2022-11-02 20:43:00,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 209 transitions.
[2022-11-02 20:43:00,277 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 209 transitions. Word has length 12
[2022-11-02 20:43:00,277 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:00,277 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 209 transitions.
[2022-11-02 20:43:00,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2022-11-02 20:43:00,278 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 209 transitions.
[2022-11-02 20:43:00,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-11-02 20:43:00,283 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:00,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:43:00,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:00,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:00,496 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:00,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:00,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1838471554, now seen corresponding path program 1 times
[2022-11-02 20:43:00,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:00,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728726030]
[2022-11-02 20:43:00,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:00,498 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:00,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:00,499 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:00,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2022-11-02 20:43:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:00,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:43:00,594 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:00,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:00,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:00,635 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:00,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728726030]
[2022-11-02 20:43:00,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728726030] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:00,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:00,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-02 20:43:00,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930838751]
[2022-11-02 20:43:00,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:00,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:43:00,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:00,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:43:00,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:43:00,637 INFO L87 Difference]: Start difference. First operand 196 states and 209 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2022-11-02 20:43:00,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:00,705 INFO L93 Difference]: Finished difference Result 217 states and 230 transitions.
[2022-11-02 20:43:00,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:43:00,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 12
[2022-11-02 20:43:00,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:00,707 INFO L225 Difference]: With dead ends: 217
[2022-11-02 20:43:00,707 INFO L226 Difference]: Without dead ends: 217
[2022-11-02 20:43:00,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:43:00,710 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 121 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:00,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 750 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:43:00,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states.
[2022-11-02 20:43:00,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 196.
[2022-11-02 20:43:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 109 states have (on average 1.7522935779816513) internal successors, (191), 180 states have internal predecessors, (191), 8 states have call successors, (8), 6 states have call predecessors, (8), 7 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9)
[2022-11-02 20:43:00,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 208 transitions.
[2022-11-02 20:43:00,744 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 208 transitions. Word has length 12
[2022-11-02 20:43:00,744 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:00,744 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 208 transitions.
[2022-11-02 20:43:00,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2022-11-02 20:43:00,745 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 208 transitions.
[2022-11-02 20:43:00,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-11-02 20:43:00,748 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:00,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:43:00,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:00,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:00,961 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:00,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:00,962 INFO L85 PathProgramCache]: Analyzing trace with hash -95661219, now seen corresponding path program 1 times
[2022-11-02 20:43:00,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:00,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174493147]
[2022-11-02 20:43:00,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:00,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:00,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:00,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:00,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2022-11-02 20:43:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:01,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:43:01,045 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:01,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:01,077 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:01,077 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:01,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174493147]
[2022-11-02 20:43:01,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174493147] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:01,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:01,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-02 20:43:01,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630869133]
[2022-11-02 20:43:01,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:01,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-02 20:43:01,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:01,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-02 20:43:01,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:43:01,080 INFO L87 Difference]: Start difference. First operand 196 states and 208 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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)
[2022-11-02 20:43:01,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:01,128 INFO L93 Difference]: Finished difference Result 201 states and 212 transitions.
[2022-11-02 20:43:01,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:43:01,129 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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 12
[2022-11-02 20:43:01,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:01,130 INFO L225 Difference]: With dead ends: 201
[2022-11-02 20:43:01,130 INFO L226 Difference]: Without dead ends: 201
[2022-11-02 20:43:01,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:43:01,132 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 104 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 702 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:01,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 702 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:43:01,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states.
[2022-11-02 20:43:01,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 198.
[2022-11-02 20:43:01,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 111 states have (on average 1.7387387387387387) internal successors, (193), 182 states have internal predecessors, (193), 8 states have call successors, (8), 6 states have call predecessors, (8), 7 states have return successors, (9), 9 states have call predecessors, (9), 8 states have call successors, (9)
[2022-11-02 20:43:01,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 210 transitions.
[2022-11-02 20:43:01,139 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 210 transitions. Word has length 12
[2022-11-02 20:43:01,140 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:01,140 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 210 transitions.
[2022-11-02 20:43:01,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 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)
[2022-11-02 20:43:01,140 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 210 transitions.
[2022-11-02 20:43:01,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2022-11-02 20:43:01,141 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:01,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:43:01,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:01,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:01,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:01,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:01,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1329489612, now seen corresponding path program 1 times
[2022-11-02 20:43:01,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:01,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129612158]
[2022-11-02 20:43:01,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:01,356 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:01,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:01,357 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:01,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2022-11-02 20:43:01,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:01,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-02 20:43:01,434 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:01,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:01,478 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:01,479 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:01,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129612158]
[2022-11-02 20:43:01,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [129612158] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:01,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:01,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-02 20:43:01,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523074135]
[2022-11-02 20:43:01,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:01,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:43:01,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:01,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:43:01,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:43:01,481 INFO L87 Difference]: Start difference. First operand 198 states and 210 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2022-11-02 20:43:01,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:01,930 INFO L93 Difference]: Finished difference Result 210 states and 224 transitions.
[2022-11-02 20:43:01,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-02 20:43:01,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 13
[2022-11-02 20:43:01,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:01,932 INFO L225 Difference]: With dead ends: 210
[2022-11-02 20:43:01,932 INFO L226 Difference]: Without dead ends: 202
[2022-11-02 20:43:01,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:43:01,933 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 51 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:01,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 382 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2022-11-02 20:43:01,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2022-11-02 20:43:01,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 192.
[2022-11-02 20:43:01,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 106 states have (on average 1.7641509433962264) internal successors, (187), 177 states have internal predecessors, (187), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2022-11-02 20:43:01,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 203 transitions.
[2022-11-02 20:43:01,946 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 203 transitions. Word has length 13
[2022-11-02 20:43:01,947 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:01,947 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 203 transitions.
[2022-11-02 20:43:01,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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)
[2022-11-02 20:43:01,947 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 203 transitions.
[2022-11-02 20:43:01,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:43:01,948 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:01,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:43:01,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:02,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:02,161 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:02,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:02,161 INFO L85 PathProgramCache]: Analyzing trace with hash -317607953, now seen corresponding path program 1 times
[2022-11-02 20:43:02,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:02,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [370689019]
[2022-11-02 20:43:02,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:02,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:02,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:02,164 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:02,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2022-11-02 20:43:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:02,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 15 conjunts are in the unsatisfiable core
[2022-11-02 20:43:02,266 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:04,508 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:04,510 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 12 treesize of output 14
[2022-11-02 20:43:04,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:04,662 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:04,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:04,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [370689019]
[2022-11-02 20:43:04,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [370689019] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:04,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:04,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-02 20:43:04,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471794198]
[2022-11-02 20:43:04,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:04,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-11-02 20:43:04,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:04,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-11-02 20:43:04,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=38, Unknown=1, NotChecked=0, Total=56
[2022-11-02 20:43:04,665 INFO L87 Difference]: Start difference. First operand 192 states and 203 transitions. Second operand has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 20:43:06,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:06,005 INFO L93 Difference]: Finished difference Result 202 states and 216 transitions.
[2022-11-02 20:43:06,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-11-02 20:43:06,006 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16
[2022-11-02 20:43:06,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:06,007 INFO L225 Difference]: With dead ends: 202
[2022-11-02 20:43:06,007 INFO L226 Difference]: Without dead ends: 202
[2022-11-02 20:43:06,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=38, Invalid=93, Unknown=1, NotChecked=0, Total=132
[2022-11-02 20:43:06,008 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 59 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 120 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:06,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 582 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 452 Invalid, 0 Unknown, 120 Unchecked, 1.2s Time]
[2022-11-02 20:43:06,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states.
[2022-11-02 20:43:06,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 191.
[2022-11-02 20:43:06,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 106 states have (on average 1.7547169811320755) internal successors, (186), 176 states have internal predecessors, (186), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8)
[2022-11-02 20:43:06,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 202 transitions.
[2022-11-02 20:43:06,041 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 202 transitions. Word has length 16
[2022-11-02 20:43:06,041 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:06,041 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 202 transitions.
[2022-11-02 20:43:06,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 2.0) internal successors, (12), 7 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2)
[2022-11-02 20:43:06,042 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 202 transitions.
[2022-11-02 20:43:06,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2022-11-02 20:43:06,043 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:06,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-02 20:43:06,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:06,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:06,257 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:06,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:06,257 INFO L85 PathProgramCache]: Analyzing trace with hash -317607954, now seen corresponding path program 1 times
[2022-11-02 20:43:06,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:06,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1963979922]
[2022-11-02 20:43:06,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:06,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:06,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:06,259 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:06,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2022-11-02 20:43:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:06,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-11-02 20:43:06,371 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:06,578 INFO L356 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2022-11-02 20:43:06,579 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27
[2022-11-02 20:43:06,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:06,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:06,649 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:06,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1963979922]
[2022-11-02 20:43:06,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1963979922] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:06,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:06,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-02 20:43:06,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459565014]
[2022-11-02 20:43:06,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:06,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 20:43:06,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:06,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 20:43:06,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:43:06,652 INFO L87 Difference]: Start difference. First operand 191 states and 202 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2022-11-02 20:43:07,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:07,485 INFO L93 Difference]: Finished difference Result 243 states and 257 transitions.
[2022-11-02 20:43:07,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2022-11-02 20:43:07,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16
[2022-11-02 20:43:07,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:07,488 INFO L225 Difference]: With dead ends: 243
[2022-11-02 20:43:07,488 INFO L226 Difference]: Without dead ends: 243
[2022-11-02 20:43:07,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110
[2022-11-02 20:43:07,490 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 280 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 107 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:07,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 480 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 317 Invalid, 0 Unknown, 107 Unchecked, 0.7s Time]
[2022-11-02 20:43:07,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states.
[2022-11-02 20:43:07,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 201.
[2022-11-02 20:43:07,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 115 states have (on average 1.7391304347826086) internal successors, (200), 185 states have internal predecessors, (200), 8 states have call successors, (8), 7 states have call predecessors, (8), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10)
[2022-11-02 20:43:07,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 218 transitions.
[2022-11-02 20:43:07,503 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 218 transitions. Word has length 16
[2022-11-02 20:43:07,503 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:07,503 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 218 transitions.
[2022-11-02 20:43:07,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2022-11-02 20:43:07,503 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 218 transitions.
[2022-11-02 20:43:07,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-11-02 20:43:07,504 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:07,505 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]
[2022-11-02 20:43:07,523 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:07,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:07,706 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:07,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:07,707 INFO L85 PathProgramCache]: Analyzing trace with hash -778576348, now seen corresponding path program 1 times
[2022-11-02 20:43:07,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:07,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750725249]
[2022-11-02 20:43:07,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:07,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:07,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:07,710 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:07,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2022-11-02 20:43:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:07,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-11-02 20:43:07,855 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:07,868 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:07,922 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:07,922 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:07,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [750725249]
[2022-11-02 20:43:07,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [750725249] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:07,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:07,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-02 20:43:07,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964354609]
[2022-11-02 20:43:07,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:07,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-11-02 20:43:07,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:07,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-11-02 20:43:07,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:43:07,925 INFO L87 Difference]: Start difference. First operand 201 states and 218 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:08,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:08,771 INFO L93 Difference]: Finished difference Result 250 states and 274 transitions.
[2022-11-02 20:43:08,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-02 20:43:08,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25
[2022-11-02 20:43:08,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:08,774 INFO L225 Difference]: With dead ends: 250
[2022-11-02 20:43:08,774 INFO L226 Difference]: Without dead ends: 250
[2022-11-02 20:43:08,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:43:08,775 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 63 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:08,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 623 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time]
[2022-11-02 20:43:08,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states.
[2022-11-02 20:43:08,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 225.
[2022-11-02 20:43:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 141 states have (on average 1.7588652482269505) internal successors, (248), 209 states have internal predecessors, (248), 8 states have call successors, (8), 7 states have call predecessors, (8), 8 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10)
[2022-11-02 20:43:08,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 266 transitions.
[2022-11-02 20:43:08,789 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 266 transitions. Word has length 25
[2022-11-02 20:43:08,789 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:08,789 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 266 transitions.
[2022-11-02 20:43:08,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:08,790 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 266 transitions.
[2022-11-02 20:43:08,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26
[2022-11-02 20:43:08,790 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:08,791 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]
[2022-11-02 20:43:08,803 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:08,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:08,998 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:08,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:08,999 INFO L85 PathProgramCache]: Analyzing trace with hash -778576347, now seen corresponding path program 1 times
[2022-11-02 20:43:08,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:08,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1187737544]
[2022-11-02 20:43:09,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:09,000 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:09,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:09,001 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:09,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2022-11-02 20:43:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:09,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 12 conjunts are in the unsatisfiable core
[2022-11-02 20:43:09,142 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:09,153 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:09,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:09,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:09,256 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:09,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1187737544]
[2022-11-02 20:43:09,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1187737544] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:09,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:09,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2022-11-02 20:43:09,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278375594]
[2022-11-02 20:43:09,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:09,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-11-02 20:43:09,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:09,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-11-02 20:43:09,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:43:09,258 INFO L87 Difference]: Start difference. First operand 225 states and 266 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:10,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:10,392 INFO L93 Difference]: Finished difference Result 282 states and 309 transitions.
[2022-11-02 20:43:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-02 20:43:10,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25
[2022-11-02 20:43:10,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:10,395 INFO L225 Difference]: With dead ends: 282
[2022-11-02 20:43:10,395 INFO L226 Difference]: Without dead ends: 282
[2022-11-02 20:43:10,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:43:10,396 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 97 mSDsluCounter, 464 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:10,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 621 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2022-11-02 20:43:10,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2022-11-02 20:43:10,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 227.
[2022-11-02 20:43:10,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 144 states have (on average 1.7361111111111112) internal successors, (250), 210 states have internal predecessors, (250), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12)
[2022-11-02 20:43:10,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 271 transitions.
[2022-11-02 20:43:10,407 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 271 transitions. Word has length 25
[2022-11-02 20:43:10,407 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:10,407 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 271 transitions.
[2022-11-02 20:43:10,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:10,408 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 271 transitions.
[2022-11-02 20:43:10,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2022-11-02 20:43:10,409 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:10,409 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]
[2022-11-02 20:43:10,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:10,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:10,622 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:10,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:10,623 INFO L85 PathProgramCache]: Analyzing trace with hash -887499840, now seen corresponding path program 1 times
[2022-11-02 20:43:10,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:10,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193245552]
[2022-11-02 20:43:10,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:10,624 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:10,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:10,630 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:10,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2022-11-02 20:43:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:10,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjunts are in the unsatisfiable core
[2022-11-02 20:43:10,764 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:10,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:10,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:10,807 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:10,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193245552]
[2022-11-02 20:43:10,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193245552] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:10,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:10,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-02 20:43:10,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322164636]
[2022-11-02 20:43:10,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:10,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-11-02 20:43:10,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:10,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-11-02 20:43:10,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2022-11-02 20:43:10,810 INFO L87 Difference]: Start difference. First operand 227 states and 271 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:10,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:10,939 INFO L93 Difference]: Finished difference Result 227 states and 270 transitions.
[2022-11-02 20:43:10,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2022-11-02 20:43:10,940 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27
[2022-11-02 20:43:10,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:10,941 INFO L225 Difference]: With dead ends: 227
[2022-11-02 20:43:10,941 INFO L226 Difference]: Without dead ends: 227
[2022-11-02 20:43:10,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:43:10,942 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 112 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:10,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 800 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-02 20:43:10,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states.
[2022-11-02 20:43:10,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227.
[2022-11-02 20:43:10,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 144 states have (on average 1.7291666666666667) internal successors, (249), 210 states have internal predecessors, (249), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12)
[2022-11-02 20:43:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 270 transitions.
[2022-11-02 20:43:10,951 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 270 transitions. Word has length 27
[2022-11-02 20:43:10,952 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:10,952 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 270 transitions.
[2022-11-02 20:43:10,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 5 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:10,952 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 270 transitions.
[2022-11-02 20:43:10,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2022-11-02 20:43:10,953 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:10,953 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]
[2022-11-02 20:43:10,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:11,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:11,167 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:11,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:11,167 INFO L85 PathProgramCache]: Analyzing trace with hash -542371696, now seen corresponding path program 1 times
[2022-11-02 20:43:11,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:11,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156823811]
[2022-11-02 20:43:11,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:11,168 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:11,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:11,169 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:11,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2022-11-02 20:43:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:11,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 12 conjunts are in the unsatisfiable core
[2022-11-02 20:43:11,355 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:11,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:11,452 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2022-11-02 20:43:11,453 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:43:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:11,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:11,532 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:11,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156823811]
[2022-11-02 20:43:11,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156823811] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:11,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:11,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7
[2022-11-02 20:43:11,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389916975]
[2022-11-02 20:43:11,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:11,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-11-02 20:43:11,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:11,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-11-02 20:43:11,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:43:11,534 INFO L87 Difference]: Start difference. First operand 227 states and 270 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-11-02 20:43:12,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:12,692 INFO L93 Difference]: Finished difference Result 240 states and 280 transitions.
[2022-11-02 20:43:12,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-11-02 20:43:12,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33
[2022-11-02 20:43:12,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:12,695 INFO L225 Difference]: With dead ends: 240
[2022-11-02 20:43:12,695 INFO L226 Difference]: Without dead ends: 240
[2022-11-02 20:43:12,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90
[2022-11-02 20:43:12,696 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 187 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:12,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 527 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2022-11-02 20:43:12,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states.
[2022-11-02 20:43:12,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 223.
[2022-11-02 20:43:12,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 144 states have (on average 1.6736111111111112) internal successors, (241), 206 states have internal predecessors, (241), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12)
[2022-11-02 20:43:12,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 262 transitions.
[2022-11-02 20:43:12,709 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 262 transitions. Word has length 33
[2022-11-02 20:43:12,709 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:12,709 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 262 transitions.
[2022-11-02 20:43:12,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-11-02 20:43:12,710 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 262 transitions.
[2022-11-02 20:43:12,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2022-11-02 20:43:12,710 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:12,711 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]
[2022-11-02 20:43:12,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:12,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:12,924 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:12,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:12,925 INFO L85 PathProgramCache]: Analyzing trace with hash -542371695, now seen corresponding path program 1 times
[2022-11-02 20:43:12,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:12,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768415557]
[2022-11-02 20:43:12,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:12,926 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:12,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:12,927 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:12,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2022-11-02 20:43:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:13,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 16 conjunts are in the unsatisfiable core
[2022-11-02 20:43:13,147 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:13,159 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:13,167 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:13,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 12 treesize of output 14
[2022-11-02 20:43:13,316 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2022-11-02 20:43:13,316 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:13,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:13,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:13,429 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:13,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768415557]
[2022-11-02 20:43:13,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1768415557] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:13,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:13,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-02 20:43:13,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876978140]
[2022-11-02 20:43:13,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:13,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 20:43:13,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:13,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 20:43:13,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:43:13,430 INFO L87 Difference]: Start difference. First operand 223 states and 262 transitions. Second operand has 7 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-11-02 20:43:14,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:14,556 INFO L93 Difference]: Finished difference Result 278 states and 305 transitions.
[2022-11-02 20:43:14,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-11-02 20:43:14,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33
[2022-11-02 20:43:14,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:14,559 INFO L225 Difference]: With dead ends: 278
[2022-11-02 20:43:14,559 INFO L226 Difference]: Without dead ends: 278
[2022-11-02 20:43:14,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:43:14,560 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 176 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 118 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:14,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 470 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 377 Invalid, 0 Unknown, 118 Unchecked, 1.1s Time]
[2022-11-02 20:43:14,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states.
[2022-11-02 20:43:14,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 223.
[2022-11-02 20:43:14,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 144 states have (on average 1.6458333333333333) internal successors, (237), 206 states have internal predecessors, (237), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12)
[2022-11-02 20:43:14,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 258 transitions.
[2022-11-02 20:43:14,569 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 258 transitions. Word has length 33
[2022-11-02 20:43:14,569 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:14,569 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 258 transitions.
[2022-11-02 20:43:14,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-11-02 20:43:14,569 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 258 transitions.
[2022-11-02 20:43:14,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2022-11-02 20:43:14,570 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:14,570 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]
[2022-11-02 20:43:14,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:14,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:14,778 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:14,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:14,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1528197373, now seen corresponding path program 1 times
[2022-11-02 20:43:14,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:14,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068652514]
[2022-11-02 20:43:14,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:14,780 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:14,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:14,781 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:14,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2022-11-02 20:43:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:14,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-11-02 20:43:14,955 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:14,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:14,980 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:14,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:14,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1068652514]
[2022-11-02 20:43:14,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1068652514] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:14,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:14,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 20:43:14,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4389048]
[2022-11-02 20:43:14,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:14,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:43:14,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:14,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:43:14,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:43:14,983 INFO L87 Difference]: Start difference. First operand 223 states and 258 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:15,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:15,017 INFO L93 Difference]: Finished difference Result 265 states and 304 transitions.
[2022-11-02 20:43:15,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-02 20:43:15,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35
[2022-11-02 20:43:15,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:15,021 INFO L225 Difference]: With dead ends: 265
[2022-11-02 20:43:15,021 INFO L226 Difference]: Without dead ends: 265
[2022-11-02 20:43:15,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:43:15,023 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 36 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:15,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 568 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:43:15,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states.
[2022-11-02 20:43:15,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 227.
[2022-11-02 20:43:15,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 148 states have (on average 1.6283783783783783) internal successors, (241), 210 states have internal predecessors, (241), 9 states have call successors, (9), 7 states have call predecessors, (9), 8 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12)
[2022-11-02 20:43:15,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 262 transitions.
[2022-11-02 20:43:15,045 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 262 transitions. Word has length 35
[2022-11-02 20:43:15,046 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:15,046 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 262 transitions.
[2022-11-02 20:43:15,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:15,046 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 262 transitions.
[2022-11-02 20:43:15,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37
[2022-11-02 20:43:15,054 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:15,054 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]
[2022-11-02 20:43:15,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:15,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:15,268 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:15,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:15,268 INFO L85 PathProgramCache]: Analyzing trace with hash -129478379, now seen corresponding path program 1 times
[2022-11-02 20:43:15,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:15,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952170978]
[2022-11-02 20:43:15,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:15,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:15,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:15,271 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:15,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process
[2022-11-02 20:43:15,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:15,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-11-02 20:43:15,437 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:15,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:15,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:15,975 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:15,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952170978]
[2022-11-02 20:43:15,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952170978] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:15,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:15,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-02 20:43:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599386885]
[2022-11-02 20:43:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:15,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2022-11-02 20:43:15,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:15,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2022-11-02 20:43:15,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:43:15,977 INFO L87 Difference]: Start difference. First operand 227 states and 262 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-11-02 20:43:15,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:15,993 INFO L93 Difference]: Finished difference Result 246 states and 282 transitions.
[2022-11-02 20:43:15,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-11-02 20:43:15,994 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36
[2022-11-02 20:43:15,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:15,995 INFO L225 Difference]: With dead ends: 246
[2022-11-02 20:43:15,996 INFO L226 Difference]: Without dead ends: 246
[2022-11-02 20:43:15,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2022-11-02 20:43:15,999 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 27 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 69 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:16,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1002 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 69 Unchecked, 0.0s Time]
[2022-11-02 20:43:16,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states.
[2022-11-02 20:43:16,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246.
[2022-11-02 20:43:16,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 166 states have (on average 1.572289156626506) internal successors, (261), 228 states have internal predecessors, (261), 9 states have call successors, (9), 8 states have call predecessors, (9), 9 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12)
[2022-11-02 20:43:16,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 282 transitions.
[2022-11-02 20:43:16,014 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 282 transitions. Word has length 36
[2022-11-02 20:43:16,015 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:16,015 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 282 transitions.
[2022-11-02 20:43:16,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2022-11-02 20:43:16,015 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 282 transitions.
[2022-11-02 20:43:16,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2022-11-02 20:43:16,018 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:16,018 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]
[2022-11-02 20:43:16,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:16,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:16,231 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:16,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:16,232 INFO L85 PathProgramCache]: Analyzing trace with hash 189837640, now seen corresponding path program 1 times
[2022-11-02 20:43:16,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:16,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912928895]
[2022-11-02 20:43:16,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:16,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:16,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:16,234 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:16,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2022-11-02 20:43:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:16,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-11-02 20:43:16,399 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:16,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:16,414 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:16,414 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:16,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912928895]
[2022-11-02 20:43:16,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [912928895] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:16,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:16,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 20:43:16,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794298901]
[2022-11-02 20:43:16,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:16,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:43:16,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:16,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:43:16,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:43:16,416 INFO L87 Difference]: Start difference. First operand 246 states and 282 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:16,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:16,449 INFO L93 Difference]: Finished difference Result 269 states and 307 transitions.
[2022-11-02 20:43:16,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2022-11-02 20:43:16,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40
[2022-11-02 20:43:16,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:16,452 INFO L225 Difference]: With dead ends: 269
[2022-11-02 20:43:16,452 INFO L226 Difference]: Without dead ends: 269
[2022-11-02 20:43:16,452 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
[2022-11-02 20:43:16,453 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 43 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:16,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 566 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:43:16,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states.
[2022-11-02 20:43:16,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 248.
[2022-11-02 20:43:16,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 168 states have (on average 1.5654761904761905) internal successors, (263), 230 states have internal predecessors, (263), 9 states have call successors, (9), 8 states have call predecessors, (9), 9 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12)
[2022-11-02 20:43:16,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 284 transitions.
[2022-11-02 20:43:16,461 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 284 transitions. Word has length 40
[2022-11-02 20:43:16,461 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:16,462 INFO L495 AbstractCegarLoop]: Abstraction has 248 states and 284 transitions.
[2022-11-02 20:43:16,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:16,462 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 284 transitions.
[2022-11-02 20:43:16,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2022-11-02 20:43:16,463 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:16,463 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]
[2022-11-02 20:43:16,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:16,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:16,678 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:16,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:16,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1958974084, now seen corresponding path program 1 times
[2022-11-02 20:43:16,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:16,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [162913004]
[2022-11-02 20:43:16,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:16,680 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:16,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:16,681 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:16,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process
[2022-11-02 20:43:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:16,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 8 conjunts are in the unsatisfiable core
[2022-11-02 20:43:16,931 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:16,937 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:17,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:17,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:17,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:17,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [162913004]
[2022-11-02 20:43:17,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [162913004] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:17,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:17,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-02 20:43:17,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870418789]
[2022-11-02 20:43:17,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:17,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 20:43:17,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:17,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 20:43:17,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:43:17,051 INFO L87 Difference]: Start difference. First operand 248 states and 284 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:18,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:18,162 INFO L93 Difference]: Finished difference Result 290 states and 319 transitions.
[2022-11-02 20:43:18,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2022-11-02 20:43:18,163 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42
[2022-11-02 20:43:18,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:18,164 INFO L225 Difference]: With dead ends: 290
[2022-11-02 20:43:18,164 INFO L226 Difference]: Without dead ends: 290
[2022-11-02 20:43:18,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2022-11-02 20:43:18,165 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 118 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:18,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 801 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time]
[2022-11-02 20:43:18,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states.
[2022-11-02 20:43:18,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 247.
[2022-11-02 20:43:18,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 168 states have (on average 1.5476190476190477) internal successors, (260), 229 states have internal predecessors, (260), 9 states have call successors, (9), 8 states have call predecessors, (9), 9 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12)
[2022-11-02 20:43:18,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 281 transitions.
[2022-11-02 20:43:18,174 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 281 transitions. Word has length 42
[2022-11-02 20:43:18,174 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:18,174 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 281 transitions.
[2022-11-02 20:43:18,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:18,175 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 281 transitions.
[2022-11-02 20:43:18,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2022-11-02 20:43:18,175 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:18,175 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]
[2022-11-02 20:43:18,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:18,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:18,390 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:18,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:18,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1958974083, now seen corresponding path program 1 times
[2022-11-02 20:43:18,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:18,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393384764]
[2022-11-02 20:43:18,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:18,392 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:18,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:18,393 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:18,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2022-11-02 20:43:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:18,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 16 conjunts are in the unsatisfiable core
[2022-11-02 20:43:18,629 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:18,635 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:18,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:18,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:18,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:18,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393384764]
[2022-11-02 20:43:18,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393384764] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:18,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:18,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-02 20:43:18,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197999796]
[2022-11-02 20:43:18,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:18,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-02 20:43:18,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:18,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-02 20:43:18,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-11-02 20:43:18,859 INFO L87 Difference]: Start difference. First operand 247 states and 281 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:20,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:20,272 INFO L93 Difference]: Finished difference Result 316 states and 345 transitions.
[2022-11-02 20:43:20,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2022-11-02 20:43:20,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42
[2022-11-02 20:43:20,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:20,275 INFO L225 Difference]: With dead ends: 316
[2022-11-02 20:43:20,275 INFO L226 Difference]: Without dead ends: 316
[2022-11-02 20:43:20,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2022-11-02 20:43:20,276 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 142 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:20,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 827 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2022-11-02 20:43:20,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states.
[2022-11-02 20:43:20,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 247.
[2022-11-02 20:43:20,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 168 states have (on average 1.5357142857142858) internal successors, (258), 229 states have internal predecessors, (258), 9 states have call successors, (9), 8 states have call predecessors, (9), 9 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12)
[2022-11-02 20:43:20,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 279 transitions.
[2022-11-02 20:43:20,285 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 279 transitions. Word has length 42
[2022-11-02 20:43:20,285 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:20,285 INFO L495 AbstractCegarLoop]: Abstraction has 247 states and 279 transitions.
[2022-11-02 20:43:20,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:20,286 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 279 transitions.
[2022-11-02 20:43:20,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2022-11-02 20:43:20,286 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:20,287 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]
[2022-11-02 20:43:20,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:20,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:20,506 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:20,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:20,507 INFO L85 PathProgramCache]: Analyzing trace with hash 2045419631, now seen corresponding path program 1 times
[2022-11-02 20:43:20,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:20,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [482259563]
[2022-11-02 20:43:20,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:20,507 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:20,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:20,508 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:20,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2022-11-02 20:43:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:20,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 25 conjunts are in the unsatisfiable core
[2022-11-02 20:43:20,752 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:20,889 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2022-11-02 20:43:20,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 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
[2022-11-02 20:43:21,199 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size
[2022-11-02 20:43:21,199 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 24
[2022-11-02 20:43:21,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 7 treesize of output 5
[2022-11-02 20:43:21,452 INFO L356 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2022-11-02 20:43:21,452 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27
[2022-11-02 20:43:22,077 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:22,102 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size
[2022-11-02 20:43:22,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 31
[2022-11-02 20:43:22,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:22,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:22,213 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:22,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [482259563]
[2022-11-02 20:43:22,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [482259563] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:22,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:22,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2022-11-02 20:43:22,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611770459]
[2022-11-02 20:43:22,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:22,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-11-02 20:43:22,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:22,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-11-02 20:43:22,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240
[2022-11-02 20:43:22,215 INFO L87 Difference]: Start difference. First operand 247 states and 279 transitions. Second operand has 16 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:23,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:23,153 INFO L93 Difference]: Finished difference Result 305 states and 339 transitions.
[2022-11-02 20:43:23,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2022-11-02 20:43:23,154 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42
[2022-11-02 20:43:23,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:23,155 INFO L225 Difference]: With dead ends: 305
[2022-11-02 20:43:23,155 INFO L226 Difference]: Without dead ends: 305
[2022-11-02 20:43:23,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462
[2022-11-02 20:43:23,156 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 120 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 644 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:23,157 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 1328 Invalid, 1040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 382 Invalid, 0 Unknown, 644 Unchecked, 0.7s Time]
[2022-11-02 20:43:23,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states.
[2022-11-02 20:43:23,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 266.
[2022-11-02 20:43:23,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 185 states have (on average 1.5297297297297296) internal successors, (283), 246 states have internal predecessors, (283), 10 states have call successors, (10), 9 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14)
[2022-11-02 20:43:23,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 307 transitions.
[2022-11-02 20:43:23,165 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 307 transitions. Word has length 42
[2022-11-02 20:43:23,165 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:23,165 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 307 transitions.
[2022-11-02 20:43:23,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:23,165 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 307 transitions.
[2022-11-02 20:43:23,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43
[2022-11-02 20:43:23,166 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:23,166 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]
[2022-11-02 20:43:23,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:23,380 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:23,380 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:23,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:23,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2045419632, now seen corresponding path program 1 times
[2022-11-02 20:43:23,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:23,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090565896]
[2022-11-02 20:43:23,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:23,381 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:23,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:23,382 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:23,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process
[2022-11-02 20:43:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:23,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 35 conjunts are in the unsatisfiable core
[2022-11-02 20:43:23,624 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:23,805 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:23,807 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14
[2022-11-02 20:43:23,836 INFO L356 Elim1Store]: treesize reduction 12, result has 42.9 percent of original size
[2022-11-02 20:43:23,836 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 22
[2022-11-02 20:43:24,199 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:24,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 12 treesize of output 14
[2022-11-02 20:43:24,401 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size
[2022-11-02 20:43:24,402 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14
[2022-11-02 20:43:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:24,656 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:24,656 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:24,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090565896]
[2022-11-02 20:43:24,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090565896] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:24,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:24,656 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10
[2022-11-02 20:43:24,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869833280]
[2022-11-02 20:43:24,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:24,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-11-02 20:43:24,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:24,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-11-02 20:43:24,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2022-11-02 20:43:24,658 INFO L87 Difference]: Start difference. First operand 266 states and 307 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:26,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:26,368 INFO L93 Difference]: Finished difference Result 274 states and 313 transitions.
[2022-11-02 20:43:26,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2022-11-02 20:43:26,369 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 42
[2022-11-02 20:43:26,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:26,370 INFO L225 Difference]: With dead ends: 274
[2022-11-02 20:43:26,371 INFO L226 Difference]: Without dead ends: 274
[2022-11-02 20:43:26,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306
[2022-11-02 20:43:26,371 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 287 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 246 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:26,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 694 Invalid, 936 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 655 Invalid, 0 Unknown, 246 Unchecked, 1.5s Time]
[2022-11-02 20:43:26,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2022-11-02 20:43:26,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 264.
[2022-11-02 20:43:26,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 185 states have (on average 1.508108108108108) internal successors, (279), 244 states have internal predecessors, (279), 10 states have call successors, (10), 9 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14)
[2022-11-02 20:43:26,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 303 transitions.
[2022-11-02 20:43:26,380 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 303 transitions. Word has length 42
[2022-11-02 20:43:26,380 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:26,381 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 303 transitions.
[2022-11-02 20:43:26,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 9 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:26,381 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 303 transitions.
[2022-11-02 20:43:26,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44
[2022-11-02 20:43:26,382 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:26,382 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]
[2022-11-02 20:43:26,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:26,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:26,594 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:26,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:26,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1016480774, now seen corresponding path program 1 times
[2022-11-02 20:43:26,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:26,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2038490187]
[2022-11-02 20:43:26,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:26,595 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:26,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:26,597 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:26,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process
[2022-11-02 20:43:26,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:26,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core
[2022-11-02 20:43:26,774 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:26,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:26,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:26,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:26,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2038490187]
[2022-11-02 20:43:26,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2038490187] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:26,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:26,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-11-02 20:43:26,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223424908]
[2022-11-02 20:43:26,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:26,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-02 20:43:26,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:26,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-02 20:43:26,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-02 20:43:26,793 INFO L87 Difference]: Start difference. First operand 264 states and 303 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:26,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:26,825 INFO L93 Difference]: Finished difference Result 286 states and 324 transitions.
[2022-11-02 20:43:26,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-11-02 20:43:26,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43
[2022-11-02 20:43:26,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:26,827 INFO L225 Difference]: With dead ends: 286
[2022-11-02 20:43:26,828 INFO L226 Difference]: Without dead ends: 286
[2022-11-02 20:43:26,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2022-11-02 20:43:26,829 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 48 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:26,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 546 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-02 20:43:26,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states.
[2022-11-02 20:43:26,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 266.
[2022-11-02 20:43:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 187 states have (on average 1.4973262032085561) internal successors, (280), 246 states have internal predecessors, (280), 10 states have call successors, (10), 9 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14)
[2022-11-02 20:43:26,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 304 transitions.
[2022-11-02 20:43:26,841 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 304 transitions. Word has length 43
[2022-11-02 20:43:26,842 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:26,842 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 304 transitions.
[2022-11-02 20:43:26,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2022-11-02 20:43:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 304 transitions.
[2022-11-02 20:43:26,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2022-11-02 20:43:26,846 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:26,846 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]
[2022-11-02 20:43:26,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:27,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:27,059 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:27,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:27,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1899527314, now seen corresponding path program 1 times
[2022-11-02 20:43:27,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:27,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065434826]
[2022-11-02 20:43:27,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:27,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:27,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:27,060 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:27,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process
[2022-11-02 20:43:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:27,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 43 conjunts are in the unsatisfiable core
[2022-11-02 20:43:27,332 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:27,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:27,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7
[2022-11-02 20:43:27,669 INFO L356 Elim1Store]: treesize reduction 70, result has 30.7 percent of original size
[2022-11-02 20:43:27,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 51
[2022-11-02 20:43:27,745 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size
[2022-11-02 20:43:27,745 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 11
[2022-11-02 20:43:28,179 INFO L356 Elim1Store]: treesize reduction 70, result has 30.7 percent of original size
[2022-11-02 20:43:28,179 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 30 treesize of output 51
[2022-11-02 20:43:28,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38
[2022-11-02 20:43:28,966 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 38
[2022-11-02 20:43:29,552 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:29,559 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size
[2022-11-02 20:43:29,559 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 43
[2022-11-02 20:43:29,772 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 11
[2022-11-02 20:43:29,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:29,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:29,901 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:29,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065434826]
[2022-11-02 20:43:29,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065434826] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:29,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:29,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17
[2022-11-02 20:43:29,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739350232]
[2022-11-02 20:43:29,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:29,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2022-11-02 20:43:29,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:29,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2022-11-02 20:43:29,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342
[2022-11-02 20:43:29,903 INFO L87 Difference]: Start difference. First operand 266 states and 304 transitions. Second operand has 19 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:30,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:30,673 INFO L93 Difference]: Finished difference Result 276 states and 311 transitions.
[2022-11-02 20:43:30,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-02 20:43:30,674 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45
[2022-11-02 20:43:30,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:30,676 INFO L225 Difference]: With dead ends: 276
[2022-11-02 20:43:30,677 INFO L226 Difference]: Without dead ends: 276
[2022-11-02 20:43:30,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462
[2022-11-02 20:43:30,678 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 63 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 875 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 224 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:30,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 875 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 316 Invalid, 0 Unknown, 224 Unchecked, 0.6s Time]
[2022-11-02 20:43:30,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2022-11-02 20:43:30,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 266.
[2022-11-02 20:43:30,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 187 states have (on average 1.4919786096256684) internal successors, (279), 246 states have internal predecessors, (279), 10 states have call successors, (10), 9 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14)
[2022-11-02 20:43:30,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 303 transitions.
[2022-11-02 20:43:30,686 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 303 transitions. Word has length 45
[2022-11-02 20:43:30,686 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:30,686 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 303 transitions.
[2022-11-02 20:43:30,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 15 states have (on average 2.533333333333333) internal successors, (38), 14 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 303 transitions.
[2022-11-02 20:43:30,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2022-11-02 20:43:30,687 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:30,687 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]
[2022-11-02 20:43:30,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (23)] Ended with exit code 0
[2022-11-02 20:43:30,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:30,901 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:30,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:30,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1899527313, now seen corresponding path program 1 times
[2022-11-02 20:43:30,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:30,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636081625]
[2022-11-02 20:43:30,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:30,901 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:30,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:30,902 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:30,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Waiting until timeout for monitored process
[2022-11-02 20:43:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:31,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 67 conjunts are in the unsatisfiable core
[2022-11-02 20:43:31,132 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:31,208 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:31,233 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:31,697 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7
[2022-11-02 20:43:31,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7
[2022-11-02 20:43:31,815 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:31,855 INFO L356 Elim1Store]: treesize reduction 36, result has 25.0 percent of original size
[2022-11-02 20:43:31,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 43
[2022-11-02 20:43:31,886 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:31,888 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18
[2022-11-02 20:43:32,052 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 3
[2022-11-02 20:43:32,076 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size
[2022-11-02 20:43:32,077 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 11
[2022-11-02 20:43:32,615 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size
[2022-11-02 20:43:32,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26
[2022-11-02 20:43:32,668 INFO L356 Elim1Store]: treesize reduction 26, result has 33.3 percent of original size
[2022-11-02 20:43:32,669 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 26
[2022-11-02 20:43:33,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16
[2022-11-02 20:43:33,126 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 23
[2022-11-02 20:43:33,281 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 23
[2022-11-02 20:43:33,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 16
[2022-11-02 20:43:34,039 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-11-02 20:43:34,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12
[2022-11-02 20:43:34,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:34,361 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:34,362 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:34,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636081625]
[2022-11-02 20:43:34,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636081625] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:34,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:34,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19
[2022-11-02 20:43:34,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235274917]
[2022-11-02 20:43:34,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:34,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states
[2022-11-02 20:43:34,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:34,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants.
[2022-11-02 20:43:34,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420
[2022-11-02 20:43:34,364 INFO L87 Difference]: Start difference. First operand 266 states and 303 transitions. Second operand has 21 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:34,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:34,790 INFO L93 Difference]: Finished difference Result 267 states and 303 transitions.
[2022-11-02 20:43:34,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2022-11-02 20:43:34,790 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45
[2022-11-02 20:43:34,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:34,792 INFO L225 Difference]: With dead ends: 267
[2022-11-02 20:43:34,792 INFO L226 Difference]: Without dead ends: 267
[2022-11-02 20:43:34,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552
[2022-11-02 20:43:34,793 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 35 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 338 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:34,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 994 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 338 Unchecked, 0.1s Time]
[2022-11-02 20:43:34,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states.
[2022-11-02 20:43:34,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 266.
[2022-11-02 20:43:34,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 187 states have (on average 1.4866310160427807) internal successors, (278), 246 states have internal predecessors, (278), 10 states have call successors, (10), 9 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14)
[2022-11-02 20:43:34,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 302 transitions.
[2022-11-02 20:43:34,801 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 302 transitions. Word has length 45
[2022-11-02 20:43:34,801 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:34,801 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 302 transitions.
[2022-11-02 20:43:34,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:34,802 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 302 transitions.
[2022-11-02 20:43:34,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2022-11-02 20:43:34,802 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:34,802 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]
[2022-11-02 20:43:34,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:35,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:35,017 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:35,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:35,017 INFO L85 PathProgramCache]: Analyzing trace with hash 218805826, now seen corresponding path program 1 times
[2022-11-02 20:43:35,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:35,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1312112729]
[2022-11-02 20:43:35,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:35,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:35,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:35,019 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:35,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process
[2022-11-02 20:43:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:35,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 43 conjunts are in the unsatisfiable core
[2022-11-02 20:43:35,474 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:35,574 INFO L356 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2022-11-02 20:43:35,574 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 16
[2022-11-02 20:43:35,833 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2022-11-02 20:43:35,834 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:43:36,040 INFO L356 Elim1Store]: treesize reduction 54, result has 29.9 percent of original size
[2022-11-02 20:43:36,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 43
[2022-11-02 20:43:36,327 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-11-02 20:43:36,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47
[2022-11-02 20:43:36,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-11-02 20:43:36,979 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-11-02 20:43:37,066 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-11-02 20:43:37,130 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-11-02 20:43:37,520 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2022-11-02 20:43:37,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:37,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:37,875 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:37,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1312112729]
[2022-11-02 20:43:37,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1312112729] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:37,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:37,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18
[2022-11-02 20:43:37,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745585460]
[2022-11-02 20:43:37,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:37,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2022-11-02 20:43:37,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:37,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2022-11-02 20:43:37,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380
[2022-11-02 20:43:37,877 INFO L87 Difference]: Start difference. First operand 266 states and 302 transitions. Second operand has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:38,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:38,660 INFO L93 Difference]: Finished difference Result 277 states and 315 transitions.
[2022-11-02 20:43:38,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2022-11-02 20:43:38,660 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45
[2022-11-02 20:43:38,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:38,662 INFO L225 Difference]: With dead ends: 277
[2022-11-02 20:43:38,662 INFO L226 Difference]: Without dead ends: 277
[2022-11-02 20:43:38,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552
[2022-11-02 20:43:38,663 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 68 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 755 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:38,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1410 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 371 Invalid, 0 Unknown, 755 Unchecked, 0.6s Time]
[2022-11-02 20:43:38,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states.
[2022-11-02 20:43:38,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 270.
[2022-11-02 20:43:38,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.4816753926701571) internal successors, (283), 250 states have internal predecessors, (283), 10 states have call successors, (10), 9 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14)
[2022-11-02 20:43:38,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 307 transitions.
[2022-11-02 20:43:38,671 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 307 transitions. Word has length 45
[2022-11-02 20:43:38,672 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:38,672 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 307 transitions.
[2022-11-02 20:43:38,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 2.2941176470588234) internal successors, (39), 18 states have internal predecessors, (39), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:38,672 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 307 transitions.
[2022-11-02 20:43:38,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46
[2022-11-02 20:43:38,673 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:38,673 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]
[2022-11-02 20:43:38,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:38,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:38,889 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:38,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:38,890 INFO L85 PathProgramCache]: Analyzing trace with hash 218805827, now seen corresponding path program 1 times
[2022-11-02 20:43:38,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:38,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1147509169]
[2022-11-02 20:43:38,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:38,891 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:38,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:38,892 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:38,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Waiting until timeout for monitored process
[2022-11-02 20:43:39,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:39,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 69 conjunts are in the unsatisfiable core
[2022-11-02 20:43:39,269 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:39,362 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2022-11-02 20:43:39,363 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:43:39,557 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2022-11-02 20:43:39,557 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:43:39,601 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:43:39,602 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:43:39,700 INFO L356 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size
[2022-11-02 20:43:39,700 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 11
[2022-11-02 20:43:39,706 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 9 treesize of output 7
[2022-11-02 20:43:39,962 INFO L356 Elim1Store]: treesize reduction 22, result has 29.0 percent of original size
[2022-11-02 20:43:39,962 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 20 treesize of output 22
[2022-11-02 20:43:39,996 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:43:39,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 24
[2022-11-02 20:43:40,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-11-02 20:43:40,361 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-11-02 20:43:40,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47
[2022-11-02 20:43:40,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47
[2022-11-02 20:43:40,871 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:43:40,871 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:43:40,877 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3
[2022-11-02 20:43:40,928 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:43:40,928 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:43:40,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3
[2022-11-02 20:43:41,127 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:43:41,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:43:41,139 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3
[2022-11-02 20:43:41,196 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:43:41,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:43:41,209 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3
[2022-11-02 20:43:41,412 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:43:41,412 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:43:41,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3
[2022-11-02 20:43:41,485 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:43:41,485 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:43:41,492 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3
[2022-11-02 20:43:41,689 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:41,691 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-11-02 20:43:41,703 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:41,704 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-11-02 20:43:42,104 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2022-11-02 20:43:42,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7
[2022-11-02 20:43:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:42,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:42,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:42,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1147509169]
[2022-11-02 20:43:42,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1147509169] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:42,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:42,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20
[2022-11-02 20:43:42,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887857620]
[2022-11-02 20:43:42,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:42,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2022-11-02 20:43:42,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:42,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2022-11-02 20:43:42,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462
[2022-11-02 20:43:42,420 INFO L87 Difference]: Start difference. First operand 270 states and 307 transitions. Second operand has 22 states, 20 states have (on average 1.95) internal successors, (39), 18 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:44,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:44,497 INFO L93 Difference]: Finished difference Result 277 states and 314 transitions.
[2022-11-02 20:43:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2022-11-02 20:43:44,498 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 1.95) internal successors, (39), 18 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 45
[2022-11-02 20:43:44,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:44,499 INFO L225 Difference]: With dead ends: 277
[2022-11-02 20:43:44,499 INFO L226 Difference]: Without dead ends: 277
[2022-11-02 20:43:44,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 20 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=129, Invalid=927, Unknown=0, NotChecked=0, Total=1056
[2022-11-02 20:43:44,500 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 86 mSDsluCounter, 1166 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1305 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 618 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:44,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 1305 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 695 Invalid, 0 Unknown, 618 Unchecked, 1.3s Time]
[2022-11-02 20:43:44,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states.
[2022-11-02 20:43:44,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 270.
[2022-11-02 20:43:44,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.4764397905759161) internal successors, (282), 250 states have internal predecessors, (282), 10 states have call successors, (10), 9 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14)
[2022-11-02 20:43:44,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 306 transitions.
[2022-11-02 20:43:44,507 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 306 transitions. Word has length 45
[2022-11-02 20:43:44,508 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:44,508 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 306 transitions.
[2022-11-02 20:43:44,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 1.95) internal successors, (39), 18 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:44,508 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 306 transitions.
[2022-11-02 20:43:44,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2022-11-02 20:43:44,509 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:44,509 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]
[2022-11-02 20:43:44,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (26)] Ended with exit code 0
[2022-11-02 20:43:44,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:44,722 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:44,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:44,723 INFO L85 PathProgramCache]: Analyzing trace with hash -84648785, now seen corresponding path program 1 times
[2022-11-02 20:43:44,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:44,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249073230]
[2022-11-02 20:43:44,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:44,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:44,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:44,728 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:44,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process
[2022-11-02 20:43:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:45,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 70 conjunts are in the unsatisfiable core
[2022-11-02 20:43:45,010 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:45,215 INFO L356 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size
[2022-11-02 20:43:45,215 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 41
[2022-11-02 20:43:45,697 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7
[2022-11-02 20:43:45,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20
[2022-11-02 20:43:46,144 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 18
[2022-11-02 20:43:46,182 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7
[2022-11-02 20:43:46,300 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:46,306 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:46,332 INFO L356 Elim1Store]: treesize reduction 36, result has 25.0 percent of original size
[2022-11-02 20:43:46,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 43 treesize of output 61
[2022-11-02 20:43:46,549 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-11-02 20:43:46,549 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 36
[2022-11-02 20:43:47,161 INFO L356 Elim1Store]: treesize reduction 22, result has 55.1 percent of original size
[2022-11-02 20:43:47,161 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 51
[2022-11-02 20:43:47,618 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size
[2022-11-02 20:43:47,618 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 45
[2022-11-02 20:43:47,667 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-11-02 20:43:47,843 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size
[2022-11-02 20:43:47,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 45
[2022-11-02 20:43:47,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-11-02 20:43:48,748 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 7
[2022-11-02 20:43:49,280 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-11-02 20:43:49,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 28
[2022-11-02 20:43:49,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:49,588 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:49,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:49,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249073230]
[2022-11-02 20:43:49,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [249073230] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:49,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:49,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25
[2022-11-02 20:43:49,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325573224]
[2022-11-02 20:43:49,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:49,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2022-11-02 20:43:49,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:49,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2022-11-02 20:43:49,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702
[2022-11-02 20:43:49,590 INFO L87 Difference]: Start difference. First operand 270 states and 306 transitions. Second operand has 27 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:51,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:51,585 INFO L93 Difference]: Finished difference Result 270 states and 305 transitions.
[2022-11-02 20:43:51,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states.
[2022-11-02 20:43:51,586 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47
[2022-11-02 20:43:51,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:51,587 INFO L225 Difference]: With dead ends: 270
[2022-11-02 20:43:51,587 INFO L226 Difference]: Without dead ends: 270
[2022-11-02 20:43:51,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=120, Invalid=1070, Unknown=0, NotChecked=0, Total=1190
[2022-11-02 20:43:51,589 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 15 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 861 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:51,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2372 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 380 Invalid, 0 Unknown, 861 Unchecked, 0.9s Time]
[2022-11-02 20:43:51,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states.
[2022-11-02 20:43:51,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270.
[2022-11-02 20:43:51,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.4712041884816753) internal successors, (281), 250 states have internal predecessors, (281), 10 states have call successors, (10), 9 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14)
[2022-11-02 20:43:51,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 305 transitions.
[2022-11-02 20:43:51,596 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 305 transitions. Word has length 47
[2022-11-02 20:43:51,596 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:51,596 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 305 transitions.
[2022-11-02 20:43:51,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:51,597 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 305 transitions.
[2022-11-02 20:43:51,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2022-11-02 20:43:51,597 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:51,597 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]
[2022-11-02 20:43:51,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:51,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:51,798 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting free_reportsErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:51,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:51,799 INFO L85 PathProgramCache]: Analyzing trace with hash -84648784, now seen corresponding path program 1 times
[2022-11-02 20:43:51,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:51,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [610343680]
[2022-11-02 20:43:51,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:51,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:51,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:51,800 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:51,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Waiting until timeout for monitored process
[2022-11-02 20:43:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:43:52,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 86 conjunts are in the unsatisfiable core
[2022-11-02 20:43:52,142 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:43:52,241 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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
[2022-11-02 20:43:52,368 INFO L356 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2022-11-02 20:43:52,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27
[2022-11-02 20:43:52,722 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7
[2022-11-02 20:43:52,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7
[2022-11-02 20:43:52,858 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20
[2022-11-02 20:43:52,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 21 treesize of output 20
[2022-11-02 20:43:53,230 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 18
[2022-11-02 20:43:53,248 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22
[2022-11-02 20:43:53,387 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:53,388 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18
[2022-11-02 20:43:53,405 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:43:53,429 INFO L356 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2022-11-02 20:43:53,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 43
[2022-11-02 20:43:53,607 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 9 treesize of output 3
[2022-11-02 20:43:53,640 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11
[2022-11-02 20:43:54,255 INFO L356 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size
[2022-11-02 20:43:54,255 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 26
[2022-11-02 20:43:54,277 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18
[2022-11-02 20:43:54,794 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30
[2022-11-02 20:43:54,825 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size
[2022-11-02 20:43:54,825 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 61
[2022-11-02 20:43:55,068 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size
[2022-11-02 20:43:55,068 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 65 treesize of output 61
[2022-11-02 20:43:55,094 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30
[2022-11-02 20:43:56,672 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-11-02 20:43:56,673 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 31
[2022-11-02 20:43:56,691 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2022-11-02 20:43:56,692 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 26
[2022-11-02 20:43:57,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:43:57,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:43:57,051 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:43:57,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [610343680]
[2022-11-02 20:43:57,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [610343680] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:43:57,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:43:57,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26
[2022-11-02 20:43:57,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384027516]
[2022-11-02 20:43:57,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:43:57,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states
[2022-11-02 20:43:57,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:43:57,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants.
[2022-11-02 20:43:57,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756
[2022-11-02 20:43:57,053 INFO L87 Difference]: Start difference. First operand 270 states and 305 transitions. Second operand has 28 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:59,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:43:59,162 INFO L93 Difference]: Finished difference Result 270 states and 304 transitions.
[2022-11-02 20:43:59,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states.
[2022-11-02 20:43:59,163 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47
[2022-11-02 20:43:59,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:43:59,164 INFO L225 Difference]: With dead ends: 270
[2022-11-02 20:43:59,164 INFO L226 Difference]: Without dead ends: 270
[2022-11-02 20:43:59,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=130, Invalid=1060, Unknown=0, NotChecked=0, Total=1190
[2022-11-02 20:43:59,165 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 12 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1852 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 765 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2022-11-02 20:43:59,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1852 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 482 Invalid, 0 Unknown, 765 Unchecked, 1.2s Time]
[2022-11-02 20:43:59,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states.
[2022-11-02 20:43:59,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270.
[2022-11-02 20:43:59,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 191 states have (on average 1.4659685863874345) internal successors, (280), 250 states have internal predecessors, (280), 10 states have call successors, (10), 9 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14)
[2022-11-02 20:43:59,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 304 transitions.
[2022-11-02 20:43:59,173 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 304 transitions. Word has length 47
[2022-11-02 20:43:59,173 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:43:59,174 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 304 transitions.
[2022-11-02 20:43:59,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 20 states have internal predecessors, (40), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:43:59,174 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 304 transitions.
[2022-11-02 20:43:59,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2022-11-02 20:43:59,175 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:43:59,175 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]
[2022-11-02 20:43:59,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0
[2022-11-02 20:43:59,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:43:59,389 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:43:59,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:43:59,390 INFO L85 PathProgramCache]: Analyzing trace with hash -180994493, now seen corresponding path program 1 times
[2022-11-02 20:43:59,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:43:59,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1647318537]
[2022-11-02 20:43:59,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:43:59,390 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:43:59,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:43:59,391 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:43:59,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process
[2022-11-02 20:44:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:00,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 76 conjunts are in the unsatisfiable core
[2022-11-02 20:44:00,035 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:44:00,163 INFO L356 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size
[2022-11-02 20:44:00,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 37
[2022-11-02 20:44:00,493 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-11-02 20:44:00,578 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:00,581 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:00,583 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:00,588 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size
[2022-11-02 20:44:00,588 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 49
[2022-11-02 20:44:00,694 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:00,696 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:00,697 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:00,707 INFO L356 Elim1Store]: treesize reduction 6, result has 57.1 percent of original size
[2022-11-02 20:44:00,708 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 27
[2022-11-02 20:44:00,988 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:01,075 INFO L356 Elim1Store]: treesize reduction 134, result has 28.3 percent of original size
[2022-11-02 20:44:01,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 42 treesize of output 81
[2022-11-02 20:44:01,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-11-02 20:44:01,710 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size
[2022-11-02 20:44:01,710 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 46 treesize of output 37
[2022-11-02 20:44:02,454 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:02,456 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:02,457 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:02,459 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:02,470 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2022-11-02 20:44:02,470 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 11 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 103 treesize of output 105
[2022-11-02 20:44:02,552 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:02,554 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:02,556 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:02,557 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:02,560 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 11 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47
[2022-11-02 20:44:03,756 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:44:03,757 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:44:03,768 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3
[2022-11-02 20:44:03,855 INFO L356 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size
[2022-11-02 20:44:03,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 80
[2022-11-02 20:44:04,497 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:44:04,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:44:04,503 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3
[2022-11-02 20:44:04,624 INFO L356 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size
[2022-11-02 20:44:04,624 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 80
[2022-11-02 20:44:05,467 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:44:05,468 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 14 treesize of output 20
[2022-11-02 20:44:05,477 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 5 treesize of output 3
[2022-11-02 20:44:05,580 INFO L356 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size
[2022-11-02 20:44:05,581 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 80
[2022-11-02 20:44:06,491 INFO L356 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size
[2022-11-02 20:44:06,491 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 80
[2022-11-02 20:44:06,516 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:06,517 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-11-02 20:44:07,847 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 15 treesize of output 7
[2022-11-02 20:44:09,201 INFO L356 Elim1Store]: treesize reduction 21, result has 48.8 percent of original size
[2022-11-02 20:44:09,202 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 191 treesize of output 158
[2022-11-02 20:44:10,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:44:10,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:44:10,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:44:10,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1647318537]
[2022-11-02 20:44:10,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1647318537] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:44:10,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:44:10,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22
[2022-11-02 20:44:10,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523953974]
[2022-11-02 20:44:10,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:44:10,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states
[2022-11-02 20:44:10,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:44:10,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants.
[2022-11-02 20:44:10,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=497, Unknown=0, NotChecked=0, Total=552
[2022-11-02 20:44:10,966 INFO L87 Difference]: Start difference. First operand 270 states and 304 transitions. Second operand has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:44:13,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:44:13,441 INFO L93 Difference]: Finished difference Result 279 states and 315 transitions.
[2022-11-02 20:44:13,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states.
[2022-11-02 20:44:13,441 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47
[2022-11-02 20:44:13,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:44:13,443 INFO L225 Difference]: With dead ends: 279
[2022-11-02 20:44:13,443 INFO L226 Difference]: Without dead ends: 279
[2022-11-02 20:44:13,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 20 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=105, Invalid=951, Unknown=0, NotChecked=0, Total=1056
[2022-11-02 20:44:13,444 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 71 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 910 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time
[2022-11-02 20:44:13,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1622 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 712 Invalid, 0 Unknown, 910 Unchecked, 1.5s Time]
[2022-11-02 20:44:13,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states.
[2022-11-02 20:44:13,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 272.
[2022-11-02 20:44:13,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 193 states have (on average 1.4663212435233162) internal successors, (283), 252 states have internal predecessors, (283), 10 states have call successors, (10), 9 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14)
[2022-11-02 20:44:13,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 307 transitions.
[2022-11-02 20:44:13,461 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 307 transitions. Word has length 47
[2022-11-02 20:44:13,461 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:44:13,462 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 307 transitions.
[2022-11-02 20:44:13,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 1.9523809523809523) internal successors, (41), 20 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:44:13,463 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 307 transitions.
[2022-11-02 20:44:13,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2022-11-02 20:44:13,463 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:13,464 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]
[2022-11-02 20:44:13,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0
[2022-11-02 20:44:13,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:44:13,680 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:44:13,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:13,680 INFO L85 PathProgramCache]: Analyzing trace with hash -180994492, now seen corresponding path program 1 times
[2022-11-02 20:44:13,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:44:13,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070757806]
[2022-11-02 20:44:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:13,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:44:13,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:44:13,683 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:44:13,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Waiting until timeout for monitored process
[2022-11-02 20:44:14,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-02 20:44:14,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 104 conjunts are in the unsatisfiable core
[2022-11-02 20:44:14,393 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-02 20:44:14,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5
[2022-11-02 20:44:14,614 INFO L356 Elim1Store]: treesize reduction 44, result has 34.3 percent of original size
[2022-11-02 20:44:14,615 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 43
[2022-11-02 20:44:15,147 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 7
[2022-11-02 20:44:15,158 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-11-02 20:44:15,294 INFO L356 Elim1Store]: treesize reduction 19, result has 47.2 percent of original size
[2022-11-02 20:44:15,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 26
[2022-11-02 20:44:15,370 INFO L356 Elim1Store]: treesize reduction 78, result has 35.0 percent of original size
[2022-11-02 20:44:15,371 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 67
[2022-11-02 20:44:15,593 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:15,599 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:15,600 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:15,601 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 21
[2022-11-02 20:44:15,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3
[2022-11-02 20:44:16,076 INFO L356 Elim1Store]: treesize reduction 58, result has 26.6 percent of original size
[2022-11-02 20:44:16,076 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 38 treesize of output 44
[2022-11-02 20:44:16,154 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18
[2022-11-02 20:44:16,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2022-11-02 20:44:16,686 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 39
[2022-11-02 20:44:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:17,480 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:17,481 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:17,482 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:17,486 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2022-11-02 20:44:17,487 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 57
[2022-11-02 20:44:17,504 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:17,505 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:17,506 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:17,508 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:17,514 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size
[2022-11-02 20:44:17,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 12 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 78
[2022-11-02 20:44:17,554 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 37
[2022-11-02 20:44:18,370 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size
[2022-11-02 20:44:18,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57
[2022-11-02 20:44:18,412 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:18,437 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:44:18,438 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30
[2022-11-02 20:44:18,461 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39
[2022-11-02 20:44:18,741 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size
[2022-11-02 20:44:18,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57
[2022-11-02 20:44:18,779 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39
[2022-11-02 20:44:18,817 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:18,839 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size
[2022-11-02 20:44:18,840 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30
[2022-11-02 20:44:19,120 INFO L356 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size
[2022-11-02 20:44:19,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 30
[2022-11-02 20:44:19,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39
[2022-11-02 20:44:19,180 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size
[2022-11-02 20:44:19,180 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57
[2022-11-02 20:44:19,486 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:19,487 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-11-02 20:44:19,488 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26
[2022-11-02 20:44:19,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39
[2022-11-02 20:44:19,550 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size
[2022-11-02 20:44:19,551 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 57
[2022-11-02 20:44:23,675 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 22
[2022-11-02 20:44:24,264 INFO L356 Elim1Store]: treesize reduction 17, result has 32.0 percent of original size
[2022-11-02 20:44:24,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 52
[2022-11-02 20:44:24,297 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size
[2022-11-02 20:44:24,297 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 16
[2022-11-02 20:44:24,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-02 20:44:24,685 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-02 20:44:24,685 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-02 20:44:24,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070757806]
[2022-11-02 20:44:24,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070757806] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-02 20:44:24,686 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-02 20:44:24,686 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27
[2022-11-02 20:44:24,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882585495]
[2022-11-02 20:44:24,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-02 20:44:24,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states
[2022-11-02 20:44:24,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-02 20:44:24,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants.
[2022-11-02 20:44:24,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=743, Unknown=0, NotChecked=0, Total=812
[2022-11-02 20:44:24,688 INFO L87 Difference]: Start difference. First operand 272 states and 307 transitions. Second operand has 29 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 24 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:44:26,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-02 20:44:26,974 INFO L93 Difference]: Finished difference Result 303 states and 341 transitions.
[2022-11-02 20:44:26,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2022-11-02 20:44:26,977 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 24 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 47
[2022-11-02 20:44:26,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-02 20:44:26,978 INFO L225 Difference]: With dead ends: 303
[2022-11-02 20:44:26,978 INFO L226 Difference]: Without dead ends: 303
[2022-11-02 20:44:26,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=121, Invalid=1285, Unknown=0, NotChecked=0, Total=1406
[2022-11-02 20:44:26,980 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 69 mSDsluCounter, 1832 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1968 SdHoareTripleChecker+Invalid, 2046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1423 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time
[2022-11-02 20:44:26,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1968 Invalid, 2046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 607 Invalid, 0 Unknown, 1423 Unchecked, 1.2s Time]
[2022-11-02 20:44:26,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states.
[2022-11-02 20:44:26,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 292.
[2022-11-02 20:44:26,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 213 states have (on average 1.431924882629108) internal successors, (305), 272 states have internal predecessors, (305), 10 states have call successors, (10), 9 states have call predecessors, (10), 10 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14)
[2022-11-02 20:44:26,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 329 transitions.
[2022-11-02 20:44:26,988 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 329 transitions. Word has length 47
[2022-11-02 20:44:26,988 INFO L84 Accepts]: Finished accepts. word is rejected.
[2022-11-02 20:44:26,988 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 329 transitions.
[2022-11-02 20:44:26,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 1.5769230769230769) internal successors, (41), 24 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2022-11-02 20:44:26,989 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 329 transitions.
[2022-11-02 20:44:26,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2022-11-02 20:44:26,989 INFO L187 NwaCegarLoop]: Found error trace
[2022-11-02 20:44:26,990 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]
[2022-11-02 20:44:27,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0
[2022-11-02 20:44:27,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:44:27,206 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 73 more)] ===
[2022-11-02 20:44:27,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-02 20:44:27,207 INFO L85 PathProgramCache]: Analyzing trace with hash -603696318, now seen corresponding path program 1 times
[2022-11-02 20:44:27,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-02 20:44:27,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681551301]
[2022-11-02 20:44:27,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-02 20:44:27,207 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2022-11-02 20:44:27,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat
[2022-11-02 20:44:27,208 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-11-02 20:44:27,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process
[2022-11-02 20:44:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:44:27,833 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-11-02 20:44:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-11-02 20:44:28,274 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2022-11-02 20:44:28,274 INFO L359 BasicCegarLoop]: Counterexample is feasible
[2022-11-02 20:44:28,275 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 76 remaining)
[2022-11-02 20:44:28,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location free_reportsErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 76 remaining)
[2022-11-02 20:44:28,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location free_reportsErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 76 remaining)
[2022-11-02 20:44:28,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location free_reportsErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 76 remaining)
[2022-11-02 20:44:28,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location free_reportsErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 76 remaining)
[2022-11-02 20:44:28,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location free_reportsErr4ASSERT_VIOLATIONMEMORY_FREE (70 of 76 remaining)
[2022-11-02 20:44:28,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location free_reportsErr5ASSERT_VIOLATIONMEMORY_FREE (69 of 76 remaining)
[2022-11-02 20:44:28,278 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location free_reportsErr6ASSERT_VIOLATIONMEMORY_FREE (68 of 76 remaining)
[2022-11-02 20:44:28,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location free_reportsErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 76 remaining)
[2022-11-02 20:44:28,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location free_reportsErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 76 remaining)
[2022-11-02 20:44:28,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 76 remaining)
[2022-11-02 20:44:28,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 76 remaining)
[2022-11-02 20:44:28,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 76 remaining)
[2022-11-02 20:44:28,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 76 remaining)
[2022-11-02 20:44:28,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 76 remaining)
[2022-11-02 20:44:28,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 76 remaining)
[2022-11-02 20:44:28,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 76 remaining)
[2022-11-02 20:44:28,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 76 remaining)
[2022-11-02 20:44:28,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 76 remaining)
[2022-11-02 20:44:28,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 76 remaining)
[2022-11-02 20:44:28,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 76 remaining)
[2022-11-02 20:44:28,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 76 remaining)
[2022-11-02 20:44:28,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 76 remaining)
[2022-11-02 20:44:28,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 76 remaining)
[2022-11-02 20:44:28,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 76 remaining)
[2022-11-02 20:44:28,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 76 remaining)
[2022-11-02 20:44:28,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 76 remaining)
[2022-11-02 20:44:28,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 76 remaining)
[2022-11-02 20:44:28,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 76 remaining)
[2022-11-02 20:44:28,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 76 remaining)
[2022-11-02 20:44:28,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 76 remaining)
[2022-11-02 20:44:28,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 76 remaining)
[2022-11-02 20:44:28,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 76 remaining)
[2022-11-02 20:44:28,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 76 remaining)
[2022-11-02 20:44:28,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 76 remaining)
[2022-11-02 20:44:28,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 76 remaining)
[2022-11-02 20:44:28,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 76 remaining)
[2022-11-02 20:44:28,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 76 remaining)
[2022-11-02 20:44:28,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 76 remaining)
[2022-11-02 20:44:28,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 76 remaining)
[2022-11-02 20:44:28,284 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 76 remaining)
[2022-11-02 20:44:28,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 76 remaining)
[2022-11-02 20:44:28,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 76 remaining)
[2022-11-02 20:44:28,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 76 remaining)
[2022-11-02 20:44:28,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 76 remaining)
[2022-11-02 20:44:28,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 76 remaining)
[2022-11-02 20:44:28,285 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 76 remaining)
[2022-11-02 20:44:28,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 76 remaining)
[2022-11-02 20:44:28,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 76 remaining)
[2022-11-02 20:44:28,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 76 remaining)
[2022-11-02 20:44:28,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 76 remaining)
[2022-11-02 20:44:28,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 76 remaining)
[2022-11-02 20:44:28,286 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 76 remaining)
[2022-11-02 20:44:28,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 76 remaining)
[2022-11-02 20:44:28,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 76 remaining)
[2022-11-02 20:44:28,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 76 remaining)
[2022-11-02 20:44:28,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 76 remaining)
[2022-11-02 20:44:28,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONMEMORY_FREE (18 of 76 remaining)
[2022-11-02 20:44:28,287 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONMEMORY_FREE (17 of 76 remaining)
[2022-11-02 20:44:28,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONMEMORY_FREE (16 of 76 remaining)
[2022-11-02 20:44:28,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 76 remaining)
[2022-11-02 20:44:28,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 76 remaining)
[2022-11-02 20:44:28,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONMEMORY_FREE (13 of 76 remaining)
[2022-11-02 20:44:28,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONMEMORY_FREE (12 of 76 remaining)
[2022-11-02 20:44:28,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONMEMORY_FREE (11 of 76 remaining)
[2022-11-02 20:44:28,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONMEMORY_FREE (10 of 76 remaining)
[2022-11-02 20:44:28,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONMEMORY_FREE (9 of 76 remaining)
[2022-11-02 20:44:28,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONMEMORY_FREE (8 of 76 remaining)
[2022-11-02 20:44:28,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 76 remaining)
[2022-11-02 20:44:28,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 76 remaining)
[2022-11-02 20:44:28,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 76 remaining)
[2022-11-02 20:44:28,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 76 remaining)
[2022-11-02 20:44:28,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONMEMORY_FREE (3 of 76 remaining)
[2022-11-02 20:44:28,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONMEMORY_FREE (2 of 76 remaining)
[2022-11-02 20:44:28,290 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONMEMORY_FREE (1 of 76 remaining)
[2022-11-02 20:44:28,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONMEMORY_LEAK (0 of 76 remaining)
[2022-11-02 20:44:28,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0
[2022-11-02 20:44:28,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/mathsat -unsat_core_generation=3
[2022-11-02 20:44:28,512 INFO L444 BasicCegarLoop]: Path program 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]
[2022-11-02 20:44:28,516 INFO L178 ceAbstractionStarter]: Computing trace abstraction results
[2022-11-02 20:44:28,527 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,532 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,533 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,533 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,533 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,533 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 08:44:28 BoogieIcfgContainer
[2022-11-02 20:44:28,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-02 20:44:28,587 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-02 20:44:28,587 INFO L271 PluginConnector]: Initializing Witness Printer...
[2022-11-02 20:44:28,588 INFO L275 PluginConnector]: Witness Printer initialized
[2022-11-02 20:44:28,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:42:56" (3/4) ...
[2022-11-02 20:44:28,603 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample
[2022-11-02 20:44:28,606 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,607 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,607 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,607 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,607 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,607 WARN L418 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
[2022-11-02 20:44:28,657 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/witness.graphml
[2022-11-02 20:44:28,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-02 20:44:28,658 INFO L158 Benchmark]: Toolchain (without parser) took 94527.54ms. Allocated memory was 75.5MB in the beginning and 123.7MB in the end (delta: 48.2MB). Free memory was 57.4MB in the beginning and 64.6MB in the end (delta: -7.2MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB.
[2022-11-02 20:44:28,658 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 75.5MB. Free memory was 57.2MB in the beginning and 57.1MB in the end (delta: 60.6kB). There was no memory consumed. Max. memory is 16.1GB.
[2022-11-02 20:44:28,658 INFO L158 Benchmark]: CACSL2BoogieTranslator took 926.46ms. Allocated memory is still 75.5MB. Free memory was 57.3MB in the beginning and 38.2MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2022-11-02 20:44:28,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.53ms. Allocated memory is still 75.5MB. Free memory was 37.9MB in the beginning and 34.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2022-11-02 20:44:28,659 INFO L158 Benchmark]: Boogie Preprocessor took 42.97ms. Allocated memory is still 75.5MB. Free memory was 34.9MB in the beginning and 32.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-02 20:44:28,659 INFO L158 Benchmark]: RCFGBuilder took 1345.91ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 32.2MB in the beginning and 69.1MB in the end (delta: -36.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-02 20:44:28,659 INFO L158 Benchmark]: TraceAbstraction took 92075.53ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 68.2MB in the beginning and 70.9MB in the end (delta: -2.7MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB.
[2022-11-02 20:44:28,660 INFO L158 Benchmark]: Witness Printer took 70.09ms. Allocated memory is still 123.7MB. Free memory was 70.9MB in the beginning and 64.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
[2022-11-02 20:44:28,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.37ms. Allocated memory is still 75.5MB. Free memory was 57.2MB in the beginning and 57.1MB in the end (delta: 60.6kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 926.46ms. Allocated memory is still 75.5MB. Free memory was 57.3MB in the beginning and 38.2MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 58.53ms. Allocated memory is still 75.5MB. Free memory was 37.9MB in the beginning and 34.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 42.97ms. Allocated memory is still 75.5MB. Free memory was 34.9MB in the beginning and 32.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 1345.91ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 32.2MB in the beginning and 69.1MB in the end (delta: -36.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 92075.53ms. Allocated memory was 100.7MB in the beginning and 123.7MB in the end (delta: 23.1MB). Free memory was 68.2MB in the beginning and 70.9MB in the end (delta: -2.7MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB.
* Witness Printer took 70.09ms. Allocated memory is still 123.7MB. Free memory was 70.9MB in the beginning and 64.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor:
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
- GenericResult: Unfinished Backtranslation
Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- CounterExampleResult [Line: -1]: pointer dereference may fail
pointer dereference may fail
We found a FailurePath:
[L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) };
[L855] struct hid_device dev;
VAL [dev={2:0}, ldv_global_msg_list={1:0}]
[L863] CALL entry_point()
[L857] CALL probe_23(&dev)
[L838] int ret = - -3;
VAL [dev={2:0}, dev={2:0}, dev={2:0}, ldv_global_msg_list={1:0}, ret=3]
[L839] CALL, EXPR ldv_malloc(sizeof(struct hid_report_enum))
VAL [\old(size)=1036, dev={2:0}, ldv_global_msg_list={1:0}]
[L526] COND TRUE __VERIFIER_nondet_int()
[L527] return malloc(size);
[L839] RET, EXPR ldv_malloc(sizeof(struct hid_report_enum))
VAL [dev={2:0}, dev={2:0}, dev={2:0}, ldv_global_msg_list={1:0}, ldv_malloc(sizeof(struct hid_report_enum))={18:0}, ret=3]
[L839] struct hid_report_enum *p = (struct hid_report_enum *)ldv_malloc(sizeof(struct hid_report_enum));
[L840] COND FALSE !(p==0)
VAL [dev={2:0}, dev={2:0}, dev={2:0}, ldv_global_msg_list={1:0}, p={18:0}, ret=3]
[L842] CALL LDV_INIT_LIST_HEAD(&p->report_list)
VAL [dev={2:0}, ldv_global_msg_list={1:0}, list={18:4}]
[L540] list->next = list
VAL [dev={2:0}, ldv_global_msg_list={1:0}, list={18:4}, list={18:4}]
[L541] list->prev = list
VAL [dev={2:0}, ldv_global_msg_list={1:0}, list={18:4}, list={18:4}]
[L842] RET LDV_INIT_LIST_HEAD(&p->report_list)
VAL [dev={2:0}, dev={2:0}, dev={2:0}, ldv_global_msg_list={1:0}, p={18:0}, ret=3]
[L843] dev->report_enum = p
VAL [dev={2:0}, dev={2:0}, dev={2:0}, ldv_global_msg_list={1:0}, p={18:0}, ret=3]
[L844] CALL hid_open_report(dev)
[L812] struct hid_parser *parser;
[L813] struct hid_item item;
VAL [dev={2:0}, device={2:0}, device={2:0}, item={23:0}, ldv_global_msg_list={1:0}]
[L814] CALL, EXPR ldv_zalloc(sizeof(struct hid_parser))
VAL [dev={2:0}, ldv_global_msg_list={1:0}]
[L533] EXPR, FCALL calloc(size, 1)
[L533] return calloc(size, 1);
VAL [\old(size)=8, \result={3:0}, calloc(size, 1)={3:0}, dev={2:0}, ldv_global_msg_list={1:0}, size=8]
[L814] RET, EXPR ldv_zalloc(sizeof(struct hid_parser))
VAL [dev={2:0}, device={2:0}, device={2:0}, item={23:0}, ldv_global_msg_list={1:0}, ldv_zalloc(sizeof(struct hid_parser))={3:0}]
[L814] parser = ldv_zalloc(sizeof(struct hid_parser))
[L815] COND FALSE !(!parser)
VAL [dev={2:0}, device={2:0}, device={2:0}, item={23:0}, ldv_global_msg_list={1:0}, parser={3:0}]
[L818] parser->device = device
VAL [dev={2:0}, device={2:0}, device={2:0}, item={23:0}, ldv_global_msg_list={1:0}, parser={3:0}]
[L819] CALL, EXPR ldv_positive()
[L519] int r = __VERIFIER_nondet_int();
[L520] COND TRUE r>0
[L520] return r;
VAL [\result=1610612738, dev={2:0}, ldv_global_msg_list={1:0}, r=1610612738]
[L819] RET, EXPR ldv_positive()
[L819] parser->report_id = ldv_positive()
VAL [dev={2:0}, device={2:0}, device={2:0}, item={23:0}, ldv_global_msg_list={1:0}, ldv_positive()=1610612738, parser={3:0}]
[L820] CALL, EXPR fetch_item(&item)
[L778] COND FALSE !(__VERIFIER_nondet_int())
[L781] item->type = 0
VAL [dev={2:0}, item={23:0}, item={23:0}, ldv_global_msg_list={1:0}]
[L782] item->a = __VERIFIER_nondet_int()
VAL [__VERIFIER_nondet_int()=0, dev={2:0}, item={23:0}, item={23:0}, ldv_global_msg_list={1:0}]
[L783] item->b = __VERIFIER_nondet_int()
VAL [__VERIFIER_nondet_int()=32768, dev={2:0}, item={23:0}, item={23:0}, ldv_global_msg_list={1:0}]
[L784] item->c = __VERIFIER_nondet_int()
VAL [__VERIFIER_nondet_int()=0, dev={2:0}, item={23:0}, item={23:0}, ldv_global_msg_list={1:0}]
[L785] return 0;
VAL [\result=0, dev={2:0}, item={23:0}, item={23:0}, ldv_global_msg_list={1:0}]
[L820] RET, EXPR fetch_item(&item)
[L820] COND TRUE fetch_item(&item)!=-1
[L821] CALL hid_parser_main(parser, &item)
[L800] EXPR parser->device
VAL [dev={2:0}, item={23:0}, item={23:0}, ldv_global_msg_list={1:0}, parser={3:0}, parser={3:0}, parser->device={2:0}]
[L800] EXPR parser->report_id
VAL [dev={2:0}, item={23:0}, item={23:0}, ldv_global_msg_list={1:0}, parser={3:0}, parser={3:0}, parser->device={2:0}, parser->report_id=1610612738]
[L800] CALL hid_register_report(parser->device, parser->report_id)
[L788] EXPR device->report_enum
VAL [\old(id)=1610612738, dev={2:0}, device={2:0}, device={2:0}, device->report_enum={18:0}, id=1610612738, ldv_global_msg_list={1:0}]
[L788] struct hid_report_enum *report_enum = device->report_enum;
[L789] struct hid_report *report;
VAL [\old(id)=1610612738, dev={2:0}, device={2:0}, device={2:0}, id=1610612738, ldv_global_msg_list={1:0}, report_enum={18:0}]
[L790] report_enum->report_id_hash[id]
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 808]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 808]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 808]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 826]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 826]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 826]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 830]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 830]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 830]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 849]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 849]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 849]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds
Unable to prove that pointer dereference always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 835]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 835]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 835]: Unable to prove that free always succeeds
Unable to prove that free always succeeds
Reason: Not analyzed.
- UnprovableResult [Line: 862]: Unable to prove that all allocated memory was freed
Unable to prove that all allocated memory was freed
Reason: Not analyzed.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 7 procedures, 198 locations, 76 error locations. Started 1 CEGAR loops. OverallTime: 91.9s, OverallIterations: 30, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 27.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2615 SdHoareTripleChecker+Valid, 20.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2573 mSDsluCounter, 27348 SdHoareTripleChecker+Invalid, 17.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 7198 IncrementalHoareTripleChecker+Unchecked, 22471 mSDsCounter, 277 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9179 IncrementalHoareTripleChecker+Invalid, 16654 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 277 mSolverCounterUnsat, 4877 mSDtfsCounter, 9179 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1003 GetRequests, 617 SyntacticMatches, 18 SemanticMatches, 368 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1485 ImplicationChecksByTransitivity, 32.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=292occurred in iteration=29, InterpolantAutomatonStates: 354, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 29 MinimizatonAttempts, 584 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 49.8s InterpolantComputationTime, 985 NumberOfCodeBlocks, 985 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 909 ConstructedInterpolants, 332 QuantifiedInterpolants, 22379 SizeOfPredicates, 305 NumberOfNonLiveVariables, 5349 ConjunctsInSsa, 774 ConjunctsInUnsatCore, 29 InterpolantComputations, 29 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2022-11-02 20:44:28,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37b2fd2-a0d3-47f9-b53e-8160165c9029/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE(valid-deref)