./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0019-1.i --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version b2eff8ba
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0019-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD --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 5a1ab43e825ce385252e3e834bebdceddee5ecd9c5749af5b0b2355e44f90dcd
....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-b2eff8b
[2021-10-28 23:16:40,916 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-28 23:16:40,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-28 23:16:40,972 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-28 23:16:40,973 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-28 23:16:40,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-28 23:16:40,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-28 23:16:40,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-28 23:16:40,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-28 23:16:40,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-28 23:16:40,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-28 23:16:40,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-28 23:16:40,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-28 23:16:40,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-28 23:16:40,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-28 23:16:41,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-28 23:16:41,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-28 23:16:41,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-28 23:16:41,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-28 23:16:41,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-28 23:16:41,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-28 23:16:41,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-28 23:16:41,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-28 23:16:41,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-28 23:16:41,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-28 23:16:41,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-28 23:16:41,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-28 23:16:41,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-28 23:16:41,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-28 23:16:41,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-28 23:16:41,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-28 23:16:41,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-28 23:16:41,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-28 23:16:41,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-28 23:16:41,029 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-28 23:16:41,029 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-28 23:16:41,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-28 23:16:41,030 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-28 23:16:41,030 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-28 23:16:41,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-28 23:16:41,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-28 23:16:41,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf
[2021-10-28 23:16:41,070 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-28 23:16:41,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-28 23:16:41,071 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-28 23:16:41,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-28 23:16:41,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-28 23:16:41,079 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-28 23:16:41,079 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-28 23:16:41,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-28 23:16:41,080 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-28 23:16:41,080 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-10-28 23:16:41,081 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-28 23:16:41,081 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-28 23:16:41,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-28 23:16:41,082 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2021-10-28 23:16:41,082 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2021-10-28 23:16:41,082 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2021-10-28 23:16:41,082 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-28 23:16:41,082 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2021-10-28 23:16:41,083 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-28 23:16:41,083 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-28 23:16:41,083 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-28 23:16:41,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-28 23:16:41,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-28 23:16:41,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:16:41,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-28 23:16:41,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-28 23:16:41,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-28 23:16:41,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-28 23:16:41,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-28 23:16:41,086 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_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a1ab43e825ce385252e3e834bebdceddee5ecd9c5749af5b0b2355e44f90dcd
[2021-10-28 23:16:41,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-28 23:16:41,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-28 23:16:41,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-28 23:16:41,410 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-28 23:16:41,412 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-28 23:16:41,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/memsafety/test-0019-1.i
[2021-10-28 23:16:41,500 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/data/76b9072e6/5c1ab075bd32463090ec6127be96e902/FLAGc317322c8
[2021-10-28 23:16:42,124 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-28 23:16:42,125 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/sv-benchmarks/c/memsafety/test-0019-1.i
[2021-10-28 23:16:42,148 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/data/76b9072e6/5c1ab075bd32463090ec6127be96e902/FLAGc317322c8
[2021-10-28 23:16:42,393 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/data/76b9072e6/5c1ab075bd32463090ec6127be96e902
[2021-10-28 23:16:42,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-28 23:16:42,404 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements.
[2021-10-28 23:16:42,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-28 23:16:42,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-28 23:16:42,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-28 23:16:42,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:16:42" (1/1) ...
[2021-10-28 23:16:42,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c55d5db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:42, skipping insertion in model container
[2021-10-28 23:16:42,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:16:42" (1/1) ...
[2021-10-28 23:16:42,435 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-28 23:16:42,489 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-28 23:16:42,892 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:16:42,904 INFO L203 MainTranslator]: Completed pre-run
[2021-10-28 23:16:42,968 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-28 23:16:43,004 INFO L208 MainTranslator]: Completed translation
[2021-10-28 23:16:43,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:43 WrapperNode
[2021-10-28 23:16:43,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-28 23:16:43,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-28 23:16:43,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-28 23:16:43,007 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-28 23:16:43,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:43" (1/1) ...
[2021-10-28 23:16:43,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:43" (1/1) ...
[2021-10-28 23:16:43,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:43" (1/1) ...
[2021-10-28 23:16:43,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:43" (1/1) ...
[2021-10-28 23:16:43,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:43" (1/1) ...
[2021-10-28 23:16:43,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:43" (1/1) ...
[2021-10-28 23:16:43,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:43" (1/1) ...
[2021-10-28 23:16:43,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-28 23:16:43,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-28 23:16:43,097 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-28 23:16:43,098 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-28 23:16:43,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:43" (1/1) ...
[2021-10-28 23:16:43,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-28 23:16:43,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/z3
[2021-10-28 23:16:43,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-28 23:16:43,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-28 23:16:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2021-10-28 23:16:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-28 23:16:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2021-10-28 23:16:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32
[2021-10-28 23:16:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64
[2021-10-28 23:16:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity
[2021-10-28 23:16:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity
[2021-10-28 23:16:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity
[2021-10-28 23:16:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_data
[2021-10-28 23:16:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure free_data
[2021-10-28 23:16:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2021-10-28 23:16:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2021-10-28 23:16:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2021-10-28 23:16:43,188 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail
[2021-10-28 23:16:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure __assert
[2021-10-28 23:16:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2021-10-28 23:16:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-28 23:16:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max
[2021-10-28 23:16:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure atof
[2021-10-28 23:16:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure atoi
[2021-10-28 23:16:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure atol
[2021-10-28 23:16:43,189 INFO L130 BoogieDeclarations]: Found specification of procedure atoll
[2021-10-28 23:16:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtod
[2021-10-28 23:16:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtof
[2021-10-28 23:16:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtold
[2021-10-28 23:16:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtol
[2021-10-28 23:16:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul
[2021-10-28 23:16:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq
[2021-10-28 23:16:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq
[2021-10-28 23:16:43,190 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll
[2021-10-28 23:16:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull
[2021-10-28 23:16:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure l64a
[2021-10-28 23:16:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure a64l
[2021-10-28 23:16:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32
[2021-10-28 23:16:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64
[2021-10-28 23:16:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity
[2021-10-28 23:16:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity
[2021-10-28 23:16:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity
[2021-10-28 23:16:43,191 INFO L130 BoogieDeclarations]: Found specification of procedure select
[2021-10-28 23:16:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure pselect
[2021-10-28 23:16:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major
[2021-10-28 23:16:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor
[2021-10-28 23:16:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev
[2021-10-28 23:16:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure random
[2021-10-28 23:16:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure srandom
[2021-10-28 23:16:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure initstate
[2021-10-28 23:16:43,192 INFO L130 BoogieDeclarations]: Found specification of procedure setstate
[2021-10-28 23:16:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure random_r
[2021-10-28 23:16:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r
[2021-10-28 23:16:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r
[2021-10-28 23:16:43,193 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r
[2021-10-28 23:16:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure rand
[2021-10-28 23:16:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure srand
[2021-10-28 23:16:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r
[2021-10-28 23:16:43,194 INFO L130 BoogieDeclarations]: Found specification of procedure drand48
[2021-10-28 23:16:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure erand48
[2021-10-28 23:16:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48
[2021-10-28 23:16:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48
[2021-10-28 23:16:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48
[2021-10-28 23:16:43,195 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48
[2021-10-28 23:16:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure srand48
[2021-10-28 23:16:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure seed48
[2021-10-28 23:16:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48
[2021-10-28 23:16:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r
[2021-10-28 23:16:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r
[2021-10-28 23:16:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r
[2021-10-28 23:16:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r
[2021-10-28 23:16:43,197 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r
[2021-10-28 23:16:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r
[2021-10-28 23:16:43,198 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r
[2021-10-28 23:16:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r
[2021-10-28 23:16:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r
[2021-10-28 23:16:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure malloc
[2021-10-28 23:16:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure calloc
[2021-10-28 23:16:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure realloc
[2021-10-28 23:16:43,199 INFO L130 BoogieDeclarations]: Found specification of procedure free
[2021-10-28 23:16:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure alloca
[2021-10-28 23:16:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure valloc
[2021-10-28 23:16:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign
[2021-10-28 23:16:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc
[2021-10-28 23:16:43,200 INFO L130 BoogieDeclarations]: Found specification of procedure atexit
[2021-10-28 23:16:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit
[2021-10-28 23:16:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit
[2021-10-28 23:16:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure exit
[2021-10-28 23:16:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit
[2021-10-28 23:16:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit
[2021-10-28 23:16:43,201 INFO L130 BoogieDeclarations]: Found specification of procedure getenv
[2021-10-28 23:16:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure putenv
[2021-10-28 23:16:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure setenv
[2021-10-28 23:16:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv
[2021-10-28 23:16:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv
[2021-10-28 23:16:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp
[2021-10-28 23:16:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp
[2021-10-28 23:16:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps
[2021-10-28 23:16:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp
[2021-10-28 23:16:43,202 INFO L130 BoogieDeclarations]: Found specification of procedure system
[2021-10-28 23:16:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure realpath
[2021-10-28 23:16:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch
[2021-10-28 23:16:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure qsort
[2021-10-28 23:16:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure abs
[2021-10-28 23:16:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure labs
[2021-10-28 23:16:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure llabs
[2021-10-28 23:16:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure div
[2021-10-28 23:16:43,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv
[2021-10-28 23:16:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv
[2021-10-28 23:16:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt
[2021-10-28 23:16:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt
[2021-10-28 23:16:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt
[2021-10-28 23:16:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt
[2021-10-28 23:16:43,204 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt
[2021-10-28 23:16:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt
[2021-10-28 23:16:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r
[2021-10-28 23:16:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r
[2021-10-28 23:16:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r
[2021-10-28 23:16:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r
[2021-10-28 23:16:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure mblen
[2021-10-28 23:16:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc
[2021-10-28 23:16:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb
[2021-10-28 23:16:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs
[2021-10-28 23:16:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs
[2021-10-28 23:16:43,206 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch
[2021-10-28 23:16:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt
[2021-10-28 23:16:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg
[2021-10-28 23:16:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_data
[2021-10-28 23:16:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2021-10-28 23:16:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2021-10-28 23:16:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure free_data
[2021-10-28 23:16:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$
[2021-10-28 23:16:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-10-28 23:16:43,209 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2021-10-28 23:16:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2021-10-28 23:16:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-28 23:16:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-28 23:16:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2021-10-28 23:16:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2021-10-28 23:16:43,740 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-28 23:16:43,745 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-10-28 23:16:43,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:43 BoogieIcfgContainer
[2021-10-28 23:16:43,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-28 23:16:43,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-28 23:16:43,754 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-28 23:16:43,758 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-28 23:16:43,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:16:42" (1/3) ...
[2021-10-28 23:16:43,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d0c466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:16:43, skipping insertion in model container
[2021-10-28 23:16:43,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:16:43" (2/3) ...
[2021-10-28 23:16:43,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d0c466 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:16:43, skipping insertion in model container
[2021-10-28 23:16:43,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:43" (3/3) ...
[2021-10-28 23:16:43,761 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0019-1.i
[2021-10-28 23:16:43,768 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-28 23:16:43,768 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations.
[2021-10-28 23:16:43,826 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-28 23:16:43,834 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR
[2021-10-28 23:16:43,834 INFO L340 AbstractCegarLoop]: Starting to check reachability of 23 error locations.
[2021-10-28 23:16:43,852 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 52 states have internal predecessors, (53), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2021-10-28 23:16:43,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-28 23:16:43,860 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:43,860 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:16:43,861 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting alloc_dataErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:43,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:43,867 INFO L85 PathProgramCache]: Analyzing trace with hash 58108464, now seen corresponding path program 1 times
[2021-10-28 23:16:43,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:43,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865160638]
[2021-10-28 23:16:43,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:43,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:44,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:44,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:44,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865160638]
[2021-10-28 23:16:44,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865160638] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:44,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:44,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-28 23:16:44,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200288010]
[2021-10-28 23:16:44,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-28 23:16:44,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:44,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-28 23:16:44,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:16:44,273 INFO L87 Difference]: Start difference. First operand has 61 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 52 states have internal predecessors, (53), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:16:44,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:44,519 INFO L93 Difference]: Finished difference Result 57 states and 57 transitions.
[2021-10-28 23:16:44,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-10-28 23:16:44,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9
[2021-10-28 23:16:44,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:44,529 INFO L225 Difference]: With dead ends: 57
[2021-10-28 23:16:44,529 INFO L226 Difference]: Without dead ends: 54
[2021-10-28 23:16:44,531 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-10-28 23:16:44,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states.
[2021-10-28 23:16:44,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54.
[2021-10-28 23:16:44,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 46 states have internal predecessors, (47), 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)
[2021-10-28 23:16:44,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions.
[2021-10-28 23:16:44,573 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 9
[2021-10-28 23:16:44,573 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:44,573 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions.
[2021-10-28 23:16:44,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:16:44,574 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions.
[2021-10-28 23:16:44,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-28 23:16:44,574 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:44,575 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:16:44,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-28 23:16:44,575 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting alloc_dataErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:44,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:44,576 INFO L85 PathProgramCache]: Analyzing trace with hash 58108465, now seen corresponding path program 1 times
[2021-10-28 23:16:44,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:44,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206223247]
[2021-10-28 23:16:44,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:44,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:44,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:44,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:44,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:44,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206223247]
[2021-10-28 23:16:44,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206223247] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:44,808 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:44,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-28 23:16:44,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656209878]
[2021-10-28 23:16:44,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-28 23:16:44,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:44,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-28 23:16:44,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:16:44,811 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:16:45,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:45,075 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions.
[2021-10-28 23:16:45,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-10-28 23:16:45,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9
[2021-10-28 23:16:45,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:45,077 INFO L225 Difference]: With dead ends: 51
[2021-10-28 23:16:45,077 INFO L226 Difference]: Without dead ends: 51
[2021-10-28 23:16:45,078 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-10-28 23:16:45,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states.
[2021-10-28 23:16:45,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51.
[2021-10-28 23:16:45,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 43 states have internal predecessors, (44), 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)
[2021-10-28 23:16:45,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions.
[2021-10-28 23:16:45,084 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 9
[2021-10-28 23:16:45,085 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:45,085 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions.
[2021-10-28 23:16:45,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:16:45,085 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions.
[2021-10-28 23:16:45,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-10-28 23:16:45,086 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:45,086 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:16:45,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-28 23:16:45,086 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting alloc_dataErr3REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:45,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:45,087 INFO L85 PathProgramCache]: Analyzing trace with hash 7659090, now seen corresponding path program 1 times
[2021-10-28 23:16:45,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:45,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515880982]
[2021-10-28 23:16:45,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:45,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:45,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:45,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:45,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:45,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:45,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515880982]
[2021-10-28 23:16:45,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515880982] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:45,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:45,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-10-28 23:16:45,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653975361]
[2021-10-28 23:16:45,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-10-28 23:16:45,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:45,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-10-28 23:16:45,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-10-28 23:16:45,330 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:16:45,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:45,515 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions.
[2021-10-28 23:16:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-10-28 23:16:45,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11
[2021-10-28 23:16:45,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:45,524 INFO L225 Difference]: With dead ends: 50
[2021-10-28 23:16:45,524 INFO L226 Difference]: Without dead ends: 50
[2021-10-28 23:16:45,525 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2021-10-28 23:16:45,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states.
[2021-10-28 23:16:45,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50.
[2021-10-28 23:16:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 42 states have internal predecessors, (43), 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)
[2021-10-28 23:16:45,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions.
[2021-10-28 23:16:45,542 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 11
[2021-10-28 23:16:45,542 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:45,542 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions.
[2021-10-28 23:16:45,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-10-28 23:16:45,543 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions.
[2021-10-28 23:16:45,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-10-28 23:16:45,544 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:45,544 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:16:45,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-28 23:16:45,545 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting free_dataErr0REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:45,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:45,546 INFO L85 PathProgramCache]: Analyzing trace with hash 581041713, now seen corresponding path program 1 times
[2021-10-28 23:16:45,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:45,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443209058]
[2021-10-28 23:16:45,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:45,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:45,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:45,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-10-28 23:16:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:45,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:45,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:45,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443209058]
[2021-10-28 23:16:45,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443209058] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:45,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:45,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 23:16:45,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203034752]
[2021-10-28 23:16:45,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-28 23:16:45,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:45,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 23:16:45,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-28 23:16:45,746 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-10-28 23:16:45,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:45,893 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions.
[2021-10-28 23:16:45,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 23:16:45,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19
[2021-10-28 23:16:45,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:45,897 INFO L225 Difference]: With dead ends: 46
[2021-10-28 23:16:45,897 INFO L226 Difference]: Without dead ends: 46
[2021-10-28 23:16:45,897 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:16:45,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states.
[2021-10-28 23:16:45,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46.
[2021-10-28 23:16:45,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 38 states have internal predecessors, (39), 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)
[2021-10-28 23:16:45,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions.
[2021-10-28 23:16:45,913 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 19
[2021-10-28 23:16:45,913 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:45,914 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions.
[2021-10-28 23:16:45,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-10-28 23:16:45,914 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions.
[2021-10-28 23:16:45,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2021-10-28 23:16:45,915 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:45,915 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:16:45,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-10-28 23:16:45,917 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting free_dataErr1REQUIRES_VIOLATION === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:45,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:45,917 INFO L85 PathProgramCache]: Analyzing trace with hash 581041714, now seen corresponding path program 1 times
[2021-10-28 23:16:45,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:45,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258129076]
[2021-10-28 23:16:45,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:45,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:46,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:46,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:46,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-10-28 23:16:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:46,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:46,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:46,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258129076]
[2021-10-28 23:16:46,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258129076] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:46,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:46,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-28 23:16:46,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495711186]
[2021-10-28 23:16:46,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-10-28 23:16:46,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:46,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-28 23:16:46,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-28 23:16:46,043 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-10-28 23:16:46,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:46,164 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions.
[2021-10-28 23:16:46,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-10-28 23:16:46,165 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19
[2021-10-28 23:16:46,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:46,166 INFO L225 Difference]: With dead ends: 42
[2021-10-28 23:16:46,166 INFO L226 Difference]: Without dead ends: 42
[2021-10-28 23:16:46,167 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-10-28 23:16:46,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states.
[2021-10-28 23:16:46,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42.
[2021-10-28 23:16:46,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.25) internal successors, (35), 34 states have internal predecessors, (35), 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)
[2021-10-28 23:16:46,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions.
[2021-10-28 23:16:46,170 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 19
[2021-10-28 23:16:46,171 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:46,171 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions.
[2021-10-28 23:16:46,171 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-10-28 23:16:46,171 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions.
[2021-10-28 23:16:46,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27
[2021-10-28 23:16:46,172 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:46,172 INFO L513 BasicCegarLoop]: 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]
[2021-10-28 23:16:46,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-10-28 23:16:46,173 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting free_dataErr8ASSERT_VIOLATIONMEMORY_FREE === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:46,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:46,173 INFO L85 PathProgramCache]: Analyzing trace with hash -2120331936, now seen corresponding path program 1 times
[2021-10-28 23:16:46,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:46,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552399121]
[2021-10-28 23:16:46,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:46,174 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:46,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:46,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-10-28 23:16:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:46,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:46,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:46,444 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552399121]
[2021-10-28 23:16:46,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552399121] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:46,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:46,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2021-10-28 23:16:46,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138445550]
[2021-10-28 23:16:46,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2021-10-28 23:16:46,447 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:46,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-10-28 23:16:46,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156
[2021-10-28 23:16:46,448 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-10-28 23:16:46,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:46,775 INFO L93 Difference]: Finished difference Result 41 states and 41 transitions.
[2021-10-28 23:16:46,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-10-28 23:16:46,776 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26
[2021-10-28 23:16:46,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:46,777 INFO L225 Difference]: With dead ends: 41
[2021-10-28 23:16:46,777 INFO L226 Difference]: Without dead ends: 41
[2021-10-28 23:16:46,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420
[2021-10-28 23:16:46,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states.
[2021-10-28 23:16:46,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41.
[2021-10-28 23:16:46,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 33 states have internal predecessors, (34), 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)
[2021-10-28 23:16:46,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions.
[2021-10-28 23:16:46,781 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 26
[2021-10-28 23:16:46,782 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:46,782 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions.
[2021-10-28 23:16:46,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 10 states have internal predecessors, (20), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-10-28 23:16:46,782 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions.
[2021-10-28 23:16:46,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-10-28 23:16:46,783 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:46,783 INFO L513 BasicCegarLoop]: 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]
[2021-10-28 23:16:46,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-10-28 23:16:46,783 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting free_dataErr9ASSERT_VIOLATIONMEMORY_FREE === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:46,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:46,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1305780487, now seen corresponding path program 1 times
[2021-10-28 23:16:46,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:46,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756385957]
[2021-10-28 23:16:46,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:46,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:46,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:46,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:46,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-10-28 23:16:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:47,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:47,118 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:47,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756385957]
[2021-10-28 23:16:47,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756385957] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:47,119 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:47,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2021-10-28 23:16:47,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699741568]
[2021-10-28 23:16:47,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2021-10-28 23:16:47,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:47,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-10-28 23:16:47,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156
[2021-10-28 23:16:47,121 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 13 states, 12 states have (on average 1.75) internal successors, (21), 10 states have internal predecessors, (21), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-10-28 23:16:47,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:47,413 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions.
[2021-10-28 23:16:47,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-10-28 23:16:47,413 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 1.75) internal successors, (21), 10 states have internal predecessors, (21), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27
[2021-10-28 23:16:47,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:47,414 INFO L225 Difference]: With dead ends: 40
[2021-10-28 23:16:47,414 INFO L226 Difference]: Without dead ends: 40
[2021-10-28 23:16:47,415 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420
[2021-10-28 23:16:47,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states.
[2021-10-28 23:16:47,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40.
[2021-10-28 23:16:47,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 32 states have internal predecessors, (33), 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)
[2021-10-28 23:16:47,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions.
[2021-10-28 23:16:47,418 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 27
[2021-10-28 23:16:47,420 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:47,421 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions.
[2021-10-28 23:16:47,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 1.75) internal successors, (21), 10 states have internal predecessors, (21), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-10-28 23:16:47,423 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions.
[2021-10-28 23:16:47,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2021-10-28 23:16:47,425 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:47,425 INFO L513 BasicCegarLoop]: 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]
[2021-10-28 23:16:47,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-10-28 23:16:47,425 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting free_dataErr10ASSERT_VIOLATIONMEMORY_FREE === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:47,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:47,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1824489342, now seen corresponding path program 1 times
[2021-10-28 23:16:47,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:47,426 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657832698]
[2021-10-28 23:16:47,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:47,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:47,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:47,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-10-28 23:16:47,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:47,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:47,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:47,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657832698]
[2021-10-28 23:16:47,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657832698] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:47,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:47,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2021-10-28 23:16:47,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905489111]
[2021-10-28 23:16:47,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2021-10-28 23:16:47,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:47,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-10-28 23:16:47,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182
[2021-10-28 23:16:47,782 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 10 states have internal predecessors, (22), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-10-28 23:16:48,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:48,057 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions.
[2021-10-28 23:16:48,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-10-28 23:16:48,058 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 10 states have internal predecessors, (22), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28
[2021-10-28 23:16:48,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:48,059 INFO L225 Difference]: With dead ends: 39
[2021-10-28 23:16:48,059 INFO L226 Difference]: Without dead ends: 39
[2021-10-28 23:16:48,059 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420
[2021-10-28 23:16:48,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2021-10-28 23:16:48,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39.
[2021-10-28 23:16:48,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 28 states have (on average 1.1428571428571428) internal successors, (32), 31 states have internal predecessors, (32), 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)
[2021-10-28 23:16:48,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions.
[2021-10-28 23:16:48,063 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 28
[2021-10-28 23:16:48,063 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:48,063 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions.
[2021-10-28 23:16:48,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 10 states have internal predecessors, (22), 2 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-10-28 23:16:48,063 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions.
[2021-10-28 23:16:48,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-10-28 23:16:48,064 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:48,064 INFO L513 BasicCegarLoop]: 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]
[2021-10-28 23:16:48,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-10-28 23:16:48,065 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr4ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:48,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:48,065 INFO L85 PathProgramCache]: Analyzing trace with hash -725172444, now seen corresponding path program 1 times
[2021-10-28 23:16:48,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:48,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295354775]
[2021-10-28 23:16:48,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:48,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:48,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:48,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:48,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:48,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-10-28 23:16:48,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:48,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2021-10-28 23:16:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:48,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:48,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295354775]
[2021-10-28 23:16:48,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295354775] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:48,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:48,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19
[2021-10-28 23:16:48,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871097207]
[2021-10-28 23:16:48,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2021-10-28 23:16:48,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:48,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-10-28 23:16:48,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342
[2021-10-28 23:16:48,417 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand has 19 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2021-10-28 23:16:48,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:48,915 INFO L93 Difference]: Finished difference Result 41 states and 40 transitions.
[2021-10-28 23:16:48,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states.
[2021-10-28 23:16:48,915 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (4), 3 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 29
[2021-10-28 23:16:48,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:48,916 INFO L225 Difference]: With dead ends: 41
[2021-10-28 23:16:48,916 INFO L226 Difference]: Without dead ends: 39
[2021-10-28 23:16:48,917 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056
[2021-10-28 23:16:48,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states.
[2021-10-28 23:16:48,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39.
[2021-10-28 23:16:48,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 31 states have internal predecessors, (31), 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)
[2021-10-28 23:16:48,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 38 transitions.
[2021-10-28 23:16:48,921 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 38 transitions. Word has length 29
[2021-10-28 23:16:48,921 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:48,921 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 38 transitions.
[2021-10-28 23:16:48,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 16 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2021-10-28 23:16:48,921 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 38 transitions.
[2021-10-28 23:16:48,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-10-28 23:16:48,922 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:48,922 INFO L513 BasicCegarLoop]: 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]
[2021-10-28 23:16:48,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-10-28 23:16:48,923 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting free_dataErr11ASSERT_VIOLATIONMEMORY_FREE === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:48,924 INFO L85 PathProgramCache]: Analyzing trace with hash -724594661, now seen corresponding path program 1 times
[2021-10-28 23:16:48,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:48,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974427231]
[2021-10-28 23:16:48,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:48,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:48,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:49,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:49,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-10-28 23:16:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:49,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:49,104 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:49,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974427231]
[2021-10-28 23:16:49,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974427231] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:49,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:49,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2021-10-28 23:16:49,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397444802]
[2021-10-28 23:16:49,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2021-10-28 23:16:49,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:49,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-10-28 23:16:49,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182
[2021-10-28 23:16:49,107 INFO L87 Difference]: Start difference. First operand 39 states and 38 transitions. Second operand has 14 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-10-28 23:16:49,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:49,376 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions.
[2021-10-28 23:16:49,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-10-28 23:16:49,376 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29
[2021-10-28 23:16:49,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:49,377 INFO L225 Difference]: With dead ends: 38
[2021-10-28 23:16:49,377 INFO L226 Difference]: Without dead ends: 38
[2021-10-28 23:16:49,377 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=518, Unknown=0, NotChecked=0, Total=600
[2021-10-28 23:16:49,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2021-10-28 23:16:49,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38.
[2021-10-28 23:16:49,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 30 states have internal predecessors, (30), 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)
[2021-10-28 23:16:49,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 37 transitions.
[2021-10-28 23:16:49,380 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 37 transitions. Word has length 29
[2021-10-28 23:16:49,380 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:49,380 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 37 transitions.
[2021-10-28 23:16:49,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.090909090909091) internal successors, (23), 12 states have internal predecessors, (23), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-10-28 23:16:49,381 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions.
[2021-10-28 23:16:49,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31
[2021-10-28 23:16:49,381 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:49,381 INFO L513 BasicCegarLoop]: 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]
[2021-10-28 23:16:49,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2021-10-28 23:16:49,382 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting free_dataErr12ASSERT_VIOLATIONMEMORY_FREE === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:49,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:49,382 INFO L85 PathProgramCache]: Analyzing trace with hash -987597916, now seen corresponding path program 1 times
[2021-10-28 23:16:49,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:49,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426971055]
[2021-10-28 23:16:49,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:49,383 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:49,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:49,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:49,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-10-28 23:16:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:49,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:49,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:49,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426971055]
[2021-10-28 23:16:49,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426971055] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:49,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:49,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13
[2021-10-28 23:16:49,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19831641]
[2021-10-28 23:16:49,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2021-10-28 23:16:49,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:49,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-10-28 23:16:49,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182
[2021-10-28 23:16:49,566 INFO L87 Difference]: Start difference. First operand 38 states and 37 transitions. Second operand has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-10-28 23:16:49,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:49,858 INFO L93 Difference]: Finished difference Result 37 states and 36 transitions.
[2021-10-28 23:16:49,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-10-28 23:16:49,858 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30
[2021-10-28 23:16:49,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:49,859 INFO L225 Difference]: With dead ends: 37
[2021-10-28 23:16:49,859 INFO L226 Difference]: Without dead ends: 37
[2021-10-28 23:16:49,860 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552
[2021-10-28 23:16:49,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states.
[2021-10-28 23:16:49,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37.
[2021-10-28 23:16:49,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.0357142857142858) internal successors, (29), 29 states have internal predecessors, (29), 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)
[2021-10-28 23:16:49,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 36 transitions.
[2021-10-28 23:16:49,862 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 36 transitions. Word has length 30
[2021-10-28 23:16:49,863 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:49,863 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 36 transitions.
[2021-10-28 23:16:49,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 12 states have internal predecessors, (24), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-10-28 23:16:49,863 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 36 transitions.
[2021-10-28 23:16:49,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-10-28 23:16:49,864 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:49,864 INFO L513 BasicCegarLoop]: 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]
[2021-10-28 23:16:49,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2021-10-28 23:16:49,864 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting free_dataErr13ASSERT_VIOLATIONMEMORY_FREE === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:49,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:49,865 INFO L85 PathProgramCache]: Analyzing trace with hash -550764227, now seen corresponding path program 1 times
[2021-10-28 23:16:49,865 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:49,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107227394]
[2021-10-28 23:16:49,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:49,865 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:49,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:50,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:50,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-10-28 23:16:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:50,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:50,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:50,356 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107227394]
[2021-10-28 23:16:50,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107227394] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:50,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:50,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21
[2021-10-28 23:16:50,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581476479]
[2021-10-28 23:16:50,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2021-10-28 23:16:50,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:50,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2021-10-28 23:16:50,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462
[2021-10-28 23:16:50,363 INFO L87 Difference]: Start difference. First operand 37 states and 36 transitions. Second operand has 22 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-10-28 23:16:51,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:51,060 INFO L93 Difference]: Finished difference Result 36 states and 35 transitions.
[2021-10-28 23:16:51,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states.
[2021-10-28 23:16:51,061 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31
[2021-10-28 23:16:51,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:51,062 INFO L225 Difference]: With dead ends: 36
[2021-10-28 23:16:51,062 INFO L226 Difference]: Without dead ends: 36
[2021-10-28 23:16:51,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=156, Invalid=1250, Unknown=0, NotChecked=0, Total=1406
[2021-10-28 23:16:51,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states.
[2021-10-28 23:16:51,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36.
[2021-10-28 23:16:51,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 28 states have (on average 1.0) internal successors, (28), 28 states have internal predecessors, (28), 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)
[2021-10-28 23:16:51,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 35 transitions.
[2021-10-28 23:16:51,066 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 35 transitions. Word has length 31
[2021-10-28 23:16:51,066 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:51,066 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 35 transitions.
[2021-10-28 23:16:51,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2021-10-28 23:16:51,067 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 35 transitions.
[2021-10-28 23:16:51,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36
[2021-10-28 23:16:51,068 INFO L505 BasicCegarLoop]: Found error trace
[2021-10-28 23:16:51,068 INFO L513 BasicCegarLoop]: 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]
[2021-10-28 23:16:51,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2021-10-28 23:16:51,068 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr4ENSURES_VIOLATIONMEMORY_LEAK === [mainErr0REQUIRES_VIOLATION, mainErr1REQUIRES_VIOLATION, mainErr2REQUIRES_VIOLATION, mainErr3REQUIRES_VIOLATION, mainErr4ENSURES_VIOLATIONMEMORY_LEAK (and 18 more)] ===
[2021-10-28 23:16:51,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-28 23:16:51,069 INFO L85 PathProgramCache]: Analyzing trace with hash 2060273419, now seen corresponding path program 1 times
[2021-10-28 23:16:51,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-28 23:16:51,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761712311]
[2021-10-28 23:16:51,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-28 23:16:51,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-28 23:16:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:51,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2021-10-28 23:16:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:51,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6
[2021-10-28 23:16:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:51,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16
[2021-10-28 23:16:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-28 23:16:52,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-28 23:16:52,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-28 23:16:52,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761712311]
[2021-10-28 23:16:52,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761712311] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-28 23:16:52,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-28 23:16:52,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26
[2021-10-28 23:16:52,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63747853]
[2021-10-28 23:16:52,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2021-10-28 23:16:52,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-28 23:16:52,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2021-10-28 23:16:52,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=642, Unknown=0, NotChecked=0, Total=702
[2021-10-28 23:16:52,870 INFO L87 Difference]: Start difference. First operand 36 states and 35 transitions. Second operand has 27 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2021-10-28 23:16:54,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-28 23:16:54,563 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions.
[2021-10-28 23:16:54,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2021-10-28 23:16:54,563 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (4), 3 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 35
[2021-10-28 23:16:54,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-28 23:16:54,564 INFO L225 Difference]: With dead ends: 35
[2021-10-28 23:16:54,564 INFO L226 Difference]: Without dead ends: 0
[2021-10-28 23:16:54,565 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=165, Invalid=1475, Unknown=0, NotChecked=0, Total=1640
[2021-10-28 23:16:54,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-10-28 23:16:54,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-10-28 23:16:54,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-28 23:16:54,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-28 23:16:54,566 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35
[2021-10-28 23:16:54,566 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-28 23:16:54,566 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-28 23:16:54,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2021-10-28 23:16:54,566 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-10-28 23:16:54,566 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-10-28 23:16:54,569 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr0REQUIRES_VIOLATION
[2021-10-28 23:16:54,570 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr1REQUIRES_VIOLATION
[2021-10-28 23:16:54,570 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr2REQUIRES_VIOLATION
[2021-10-28 23:16:54,571 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr3REQUIRES_VIOLATION
[2021-10-28 23:16:54,571 INFO L764 garLoopResultBuilder]: Registering result SAFE for location mainErr4ENSURES_VIOLATIONMEMORY_LEAK
[2021-10-28 23:16:54,571 INFO L764 garLoopResultBuilder]: Registering result SAFE for location alloc_dataErr0REQUIRES_VIOLATION
[2021-10-28 23:16:54,571 INFO L764 garLoopResultBuilder]: Registering result SAFE for location alloc_dataErr1REQUIRES_VIOLATION
[2021-10-28 23:16:54,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location alloc_dataErr2REQUIRES_VIOLATION
[2021-10-28 23:16:54,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location alloc_dataErr3REQUIRES_VIOLATION
[2021-10-28 23:16:54,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr0REQUIRES_VIOLATION
[2021-10-28 23:16:54,572 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr1REQUIRES_VIOLATION
[2021-10-28 23:16:54,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr2REQUIRES_VIOLATION
[2021-10-28 23:16:54,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr3REQUIRES_VIOLATION
[2021-10-28 23:16:54,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr4REQUIRES_VIOLATION
[2021-10-28 23:16:54,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr5REQUIRES_VIOLATION
[2021-10-28 23:16:54,573 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr6REQUIRES_VIOLATION
[2021-10-28 23:16:54,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr7REQUIRES_VIOLATION
[2021-10-28 23:16:54,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr8ASSERT_VIOLATIONMEMORY_FREE
[2021-10-28 23:16:54,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr9ASSERT_VIOLATIONMEMORY_FREE
[2021-10-28 23:16:54,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr10ASSERT_VIOLATIONMEMORY_FREE
[2021-10-28 23:16:54,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr11ASSERT_VIOLATIONMEMORY_FREE
[2021-10-28 23:16:54,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr12ASSERT_VIOLATIONMEMORY_FREE
[2021-10-28 23:16:54,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location free_dataErr13ASSERT_VIOLATIONMEMORY_FREE
[2021-10-28 23:16:54,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2021-10-28 23:16:54,579 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-28 23:16:54,580 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-10-28 23:16:54,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:16:54 BoogieIcfgContainer
[2021-10-28 23:16:54,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-28 23:16:54,583 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-28 23:16:54,584 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-28 23:16:54,584 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-28 23:16:54,584 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:16:43" (3/4) ...
[2021-10-28 23:16:54,587 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-10-28 23:16:54,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reach_error
[2021-10-28 23:16:54,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init
[2021-10-28 23:16:54,594 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_32
[2021-10-28 23:16:54,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __bswap_64
[2021-10-28 23:16:54,595 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint16_identity
[2021-10-28 23:16:54,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint64_identity
[2021-10-28 23:16:54,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure alloc_data
[2021-10-28 23:16:54,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main
[2021-10-28 23:16:54,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __uint32_identity
[2021-10-28 23:16:54,596 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure free_data
[2021-10-28 23:16:54,605 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges
[2021-10-28 23:16:54,605 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges
[2021-10-28 23:16:54,605 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2021-10-28 23:16:54,605 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-28 23:16:54,651 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/witness.graphml
[2021-10-28 23:16:54,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-28 23:16:54,653 INFO L168 Benchmark]: Toolchain (without parser) took 12248.08 ms. Allocated memory was 107.0 MB in the beginning and 144.7 MB in the end (delta: 37.7 MB). Free memory was 71.7 MB in the beginning and 83.9 MB in the end (delta: -12.1 MB). Peak memory consumption was 26.6 MB. Max. memory is 16.1 GB.
[2021-10-28 23:16:54,654 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 81.7 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:16:54,655 INFO L168 Benchmark]: CACSL2BoogieTranslator took 596.81 ms. Allocated memory is still 107.0 MB. Free memory was 71.5 MB in the beginning and 76.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-28 23:16:54,655 INFO L168 Benchmark]: Boogie Preprocessor took 90.36 ms. Allocated memory is still 107.0 MB. Free memory was 76.5 MB in the beginning and 74.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-28 23:16:54,655 INFO L168 Benchmark]: RCFGBuilder took 654.49 ms. Allocated memory is still 107.0 MB. Free memory was 74.4 MB in the beginning and 53.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB.
[2021-10-28 23:16:54,656 INFO L168 Benchmark]: TraceAbstraction took 10829.83 ms. Allocated memory was 107.0 MB in the beginning and 144.7 MB in the end (delta: 37.7 MB). Free memory was 52.9 MB in the beginning and 87.0 MB in the end (delta: -34.1 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB.
[2021-10-28 23:16:54,656 INFO L168 Benchmark]: Witness Printer took 68.32 ms. Allocated memory is still 144.7 MB. Free memory was 87.0 MB in the beginning and 83.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-28 23:16:54,658 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory was 81.7 MB in the beginning and 81.7 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 596.81 ms. Allocated memory is still 107.0 MB. Free memory was 71.5 MB in the beginning and 76.5 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Preprocessor took 90.36 ms. Allocated memory is still 107.0 MB. Free memory was 76.5 MB in the beginning and 74.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB.
* RCFGBuilder took 654.49 ms. Allocated memory is still 107.0 MB. Free memory was 74.4 MB in the beginning and 53.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 10829.83 ms. Allocated memory was 107.0 MB in the beginning and 144.7 MB in the end (delta: 37.7 MB). Free memory was 52.9 MB in the beginning and 87.0 MB in the end (delta: -34.1 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB.
* Witness Printer took 68.32 ms. Allocated memory is still 144.7 MB. Free memory was 87.0 MB in the beginning and 83.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* 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
- PositiveResult [Line: 544]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 544]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 544]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 544]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 541]: all allocated memory was freed
For all program executions holds that all allocated memory was freed at this location
- PositiveResult [Line: 529]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 529]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 530]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 530]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 532]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 532]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 532]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 532]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 534]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 534]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 535]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 535]: pointer dereference always succeeds
For all program executions holds that pointer dereference always succeeds at this location
- PositiveResult [Line: 538]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 538]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 538]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 539]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 539]: free always succeeds
For all program executions holds that free always succeeds at this location
- PositiveResult [Line: 539]: free always succeeds
For all program executions holds that free always succeeds at this location
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 11 procedures, 79 locations, 23 error locations. Started 1 CEGAR loops. OverallTime: 10.7s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 318 SDtfs, 355 SDslu, 1376 SDs, 0 SdLazy, 3103 SolverSat, 170 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 286 GetRequests, 45 SyntacticMatches, 6 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 174, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 302 NumberOfCodeBlocks, 302 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 3526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 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
- AllSpecificationsHoldResult: All specifications hold
23 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2021-10-28 23:16:54,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3a2eb30-f0a7-4d1b-83b9-b3519aa5a81b/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...