./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 2329fc70
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df820220e47314ad1ae7e5e69c959ff16aa366a463fd9290864972c0f85d142a
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-2329fc7
[2022-12-13 09:21:02,426 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-12-13 09:21:02,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 09:21:02,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 09:21:02,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 09:21:02,442 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 09:21:02,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 09:21:02,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 09:21:02,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 09:21:02,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 09:21:02,446 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 09:21:02,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 09:21:02,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 09:21:02,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 09:21:02,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 09:21:02,449 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 09:21:02,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 09:21:02,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 09:21:02,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 09:21:02,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 09:21:02,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 09:21:02,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 09:21:02,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 09:21:02,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 09:21:02,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 09:21:02,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 09:21:02,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 09:21:02,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 09:21:02,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 09:21:02,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 09:21:02,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 09:21:02,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 09:21:02,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 09:21:02,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 09:21:02,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 09:21:02,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 09:21:02,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 09:21:02,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 09:21:02,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 09:21:02,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 09:21:02,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 09:21:02,467 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf
[2022-12-13 09:21:02,481 INFO L113 SettingsManager]: Loading preferences was successful
[2022-12-13 09:21:02,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 09:21:02,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 09:21:02,482 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 09:21:02,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 09:21:02,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 09:21:02,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 09:21:02,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-12-13 09:21:02,483 INFO L138 SettingsManager]: * Use SBE=true
[2022-12-13 09:21:02,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 09:21:02,484 INFO L138 SettingsManager]: * sizeof long=4
[2022-12-13 09:21:02,484 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-12-13 09:21:02,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-12-13 09:21:02,484 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-12-13 09:21:02,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-12-13 09:21:02,484 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2022-12-13 09:21:02,484 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2022-12-13 09:21:02,484 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2022-12-13 09:21:02,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 09:21:02,485 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-12-13 09:21:02,485 INFO L138 SettingsManager]: * sizeof long double=12
[2022-12-13 09:21:02,485 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-12-13 09:21:02,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 09:21:02,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-12-13 09:21:02,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-12-13 09:21:02,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 09:21:02,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 09:21:02,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 09:21:02,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-12-13 09:21:02,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-12-13 09:21:02,486 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-12-13 09:21:02,486 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL
[2022-12-13 09:21:02,486 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-12-13 09:21:02,486 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2022-12-13 09:21:02,486 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2022-12-13 09:21:02,486 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_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df820220e47314ad1ae7e5e69c959ff16aa366a463fd9290864972c0f85d142a
[2022-12-13 09:21:02,683 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 09:21:02,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 09:21:02,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 09:21:02,703 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-12-13 09:21:02,704 INFO L275 PluginConnector]: CDTParser initialized
[2022-12-13 09:21:02,705 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c
[2022-12-13 09:21:05,378 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-12-13 09:21:05,582 INFO L351 CDTParser]: Found 1 translation units.
[2022-12-13 09:21:05,583 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c
[2022-12-13 09:21:05,589 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/data/1b197a386/fec17b85def24b69a402f2ef4b98f5b3/FLAG4e2a153e9
[2022-12-13 09:21:05,600 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/data/1b197a386/fec17b85def24b69a402f2ef4b98f5b3
[2022-12-13 09:21:05,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 09:21:05,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 09:21:05,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 09:21:05,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 09:21:05,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 09:21:05,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:21:05" (1/1) ...
[2022-12-13 09:21:05,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b0d3713 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:05, skipping insertion in model container
[2022-12-13 09:21:05,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:21:05" (1/1) ...
[2022-12-13 09:21:05,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-12-13 09:21:05,630 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-12-13 09:21:05,746 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,747 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,748 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,750 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,751 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,755 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,756 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,757 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,758 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,759 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,760 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,761 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,762 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,763 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,764 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,765 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:05,766 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:05,775 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4099,4112]
[2022-12-13 09:21:05,785 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-13 09:21:05,794 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
[2022-12-13 09:21:05,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@186e4fa6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:05, skipping insertion in model container
[2022-12-13 09:21:05,795 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 09:21:05,795 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2022-12-13 09:21:05,796 INFO L158 Benchmark]: Toolchain (without parser) took 192.57ms. Allocated memory is still 123.7MB. Free memory was 89.9MB in the beginning and 78.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-12-13 09:21:05,797 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-12-13 09:21:05,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.84ms. Allocated memory is still 123.7MB. Free memory was 89.9MB in the beginning and 78.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2022-12-13 09:21:05,798 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.13ms. Allocated memory is still 123.7MB. Free memory is still 66.6MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 190.84ms. Allocated memory is still 123.7MB. Free memory was 89.9MB in the beginning and 78.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 157]: Unsupported Syntax
Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash df820220e47314ad1ae7e5e69c959ff16aa366a463fd9290864972c0f85d142a
--- Real Ultimate output ---
[0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset.
This is Ultimate 0.2.2-dev-2329fc7
[2022-12-13 09:21:07,201 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-12-13 09:21:07,202 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-12-13 09:21:07,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-12-13 09:21:07,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-12-13 09:21:07,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-12-13 09:21:07,223 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-12-13 09:21:07,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-12-13 09:21:07,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-12-13 09:21:07,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-12-13 09:21:07,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-12-13 09:21:07,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-12-13 09:21:07,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-12-13 09:21:07,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-12-13 09:21:07,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-12-13 09:21:07,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-12-13 09:21:07,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-12-13 09:21:07,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-12-13 09:21:07,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-12-13 09:21:07,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-12-13 09:21:07,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-12-13 09:21:07,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-12-13 09:21:07,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-12-13 09:21:07,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-12-13 09:21:07,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-12-13 09:21:07,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-12-13 09:21:07,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-12-13 09:21:07,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-12-13 09:21:07,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-12-13 09:21:07,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-12-13 09:21:07,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-12-13 09:21:07,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-12-13 09:21:07,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-12-13 09:21:07,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-12-13 09:21:07,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-12-13 09:21:07,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-12-13 09:21:07,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-12-13 09:21:07,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-12-13 09:21:07,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-12-13 09:21:07,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-12-13 09:21:07,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-12-13 09:21:07,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf
[2022-12-13 09:21:07,278 INFO L113 SettingsManager]: Loading preferences was successful
[2022-12-13 09:21:07,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-12-13 09:21:07,279 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-12-13 09:21:07,279 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-12-13 09:21:07,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-12-13 09:21:07,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-12-13 09:21:07,280 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-12-13 09:21:07,280 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-12-13 09:21:07,281 INFO L138 SettingsManager]: * Use SBE=true
[2022-12-13 09:21:07,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-12-13 09:21:07,281 INFO L138 SettingsManager]: * sizeof long=4
[2022-12-13 09:21:07,281 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-12-13 09:21:07,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-12-13 09:21:07,281 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-12-13 09:21:07,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-12-13 09:21:07,282 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2022-12-13 09:21:07,282 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2022-12-13 09:21:07,282 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2022-12-13 09:21:07,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-12-13 09:21:07,282 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-12-13 09:21:07,282 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-12-13 09:21:07,283 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-12-13 09:21:07,283 INFO L138 SettingsManager]: * sizeof long double=12
[2022-12-13 09:21:07,283 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-12-13 09:21:07,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-12-13 09:21:07,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-12-13 09:21:07,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-12-13 09:21:07,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 09:21:07,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-12-13 09:21:07,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-12-13 09:21:07,284 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-12-13 09:21:07,284 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-12-13 09:21:07,285 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-12-13 09:21:07,285 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL
[2022-12-13 09:21:07,285 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-12-13 09:21:07,285 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2022-12-13 09:21:07,285 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2022-12-13 09:21:07,285 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-12-13 09:21:07,285 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df820220e47314ad1ae7e5e69c959ff16aa366a463fd9290864972c0f85d142a
[2022-12-13 09:21:07,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-12-13 09:21:07,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-12-13 09:21:07,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-12-13 09:21:07,537 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-12-13 09:21:07,538 INFO L275 PluginConnector]: CDTParser initialized
[2022-12-13 09:21:07,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/../../sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c
[2022-12-13 09:21:10,092 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-12-13 09:21:10,217 INFO L351 CDTParser]: Found 1 translation units.
[2022-12-13 09:21:10,218 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c
[2022-12-13 09:21:10,223 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/data/afbc54587/fa96c2a32ecd48b9bba9ca74c7f858f4/FLAG70c2ecb3b
[2022-12-13 09:21:10,234 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/data/afbc54587/fa96c2a32ecd48b9bba9ca74c7f858f4
[2022-12-13 09:21:10,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-12-13 09:21:10,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-12-13 09:21:10,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-12-13 09:21:10,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-12-13 09:21:10,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-12-13 09:21:10,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c80c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10, skipping insertion in model container
[2022-12-13 09:21:10,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-12-13 09:21:10,270 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-12-13 09:21:10,382 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,383 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,385 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,386 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,389 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,390 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,391 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,392 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,393 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,394 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,395 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,396 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,397 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,398 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,406 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4099,4112]
[2022-12-13 09:21:10,414 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-13 09:21:10,424 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2022-12-13 09:21:10,427 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-12-13 09:21:10,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,431 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,432 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,433 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,434 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,435 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,436 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,437 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,438 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,439 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,440 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,441 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,445 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4099,4112]
[2022-12-13 09:21:10,448 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-13 09:21:10,452 INFO L203 MainTranslator]: Completed pre-run
[2022-12-13 09:21:10,461 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,462 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,463 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,464 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,465 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,466 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,467 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,468 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,469 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin
[2022-12-13 09:21:10,470 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end
[2022-12-13 09:21:10,474 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/sv-benchmarks/c/weaver/popl20-more-buffer-mult2.wvr.c[4099,4112]
[2022-12-13 09:21:10,477 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-12-13 09:21:10,502 INFO L208 MainTranslator]: Completed translation
[2022-12-13 09:21:10,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10 WrapperNode
[2022-12-13 09:21:10,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-12-13 09:21:10,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-12-13 09:21:10,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-12-13 09:21:10,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-12-13 09:21:10,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,548 INFO L138 Inliner]: procedures = 29, calls = 76, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 293
[2022-12-13 09:21:10,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-12-13 09:21:10,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-12-13 09:21:10,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-12-13 09:21:10,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-12-13 09:21:10,558 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,559 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,579 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,584 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-12-13 09:21:10,585 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-12-13 09:21:10,585 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-12-13 09:21:10,585 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-12-13 09:21:10,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (1/1) ...
[2022-12-13 09:21:10,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-12-13 09:21:10,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3
[2022-12-13 09:21:10,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-12-13 09:21:10,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-12-13 09:21:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-12-13 09:21:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-12-13 09:21:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-12-13 09:21:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2022-12-13 09:21:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2022-12-13 09:21:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2022-12-13 09:21:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2022-12-13 09:21:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2022-12-13 09:21:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2022-12-13 09:21:10,647 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2022-12-13 09:21:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread4
[2022-12-13 09:21:10,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4
[2022-12-13 09:21:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-12-13 09:21:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-12-13 09:21:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-12-13 09:21:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-12-13 09:21:10,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-12-13 09:21:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-12-13 09:21:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2022-12-13 09:21:10,650 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-12-13 09:21:10,750 INFO L235 CfgBuilder]: Building ICFG
[2022-12-13 09:21:10,751 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-12-13 09:21:11,320 INFO L276 CfgBuilder]: Performing block encoding
[2022-12-13 09:21:11,464 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-12-13 09:21:11,464 INFO L300 CfgBuilder]: Removed 6 assume(true) statements.
[2022-12-13 09:21:11,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:21:11 BoogieIcfgContainer
[2022-12-13 09:21:11,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-12-13 09:21:11,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-12-13 09:21:11,468 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-12-13 09:21:11,473 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-12-13 09:21:11,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:21:10" (1/3) ...
[2022-12-13 09:21:11,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f09bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:21:11, skipping insertion in model container
[2022-12-13 09:21:11,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:21:10" (2/3) ...
[2022-12-13 09:21:11,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f09bb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:21:11, skipping insertion in model container
[2022-12-13 09:21:11,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:21:11" (3/3) ...
[2022-12-13 09:21:11,476 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult2.wvr.c
[2022-12-13 09:21:11,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-12-13 09:21:11,492 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations.
[2022-12-13 09:21:11,492 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-12-13 09:21:11,548 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions.
[2022-12-13 09:21:11,588 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-13 09:21:11,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-12-13 09:21:11,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3
[2022-12-13 09:21:11,590 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-12-13 09:21:11,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2022-12-13 09:21:11,671 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2022-12-13 09:21:11,681 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork2 ========
[2022-12-13 09:21:11,685 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@443cedd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-13 09:21:11,685 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-12-13 09:21:13,453 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:21:13,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:21:13,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1838914949, now seen corresponding path program 1 times
[2022-12-13 09:21:13,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:21:13,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [989829963]
[2022-12-13 09:21:13,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:21:13,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:21:13,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:21:13,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:21:13,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2022-12-13 09:21:13,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:21:13,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-12-13 09:21:13,602 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:21:13,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:21:13,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:21:13,614 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:21:13,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [989829963]
[2022-12-13 09:21:13,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [989829963] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:21:13,615 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:21:13,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 09:21:13,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416078515]
[2022-12-13 09:21:13,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:21:13,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 09:21:13,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:21:13,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 09:21:13,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 09:21:13,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:13,647 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:21:13,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.0) internal successors, (122), 2 states have internal predecessors, (122), 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)
[2022-12-13 09:21:13,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:13,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2022-12-13 09:21:13,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:21:13,901 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:21:13,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:21:13,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2128331965, now seen corresponding path program 1 times
[2022-12-13 09:21:13,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:21:13,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [768999021]
[2022-12-13 09:21:13,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:21:13,907 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:21:13,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:21:13,911 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:21:13,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2022-12-13 09:21:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:21:14,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-12-13 09:21:14,134 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:21:14,161 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2022-12-13 09:21:14,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:21:14,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:21:14,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:21:14,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [768999021]
[2022-12-13 09:21:14,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [768999021] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:21:14,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:21:14,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-12-13 09:21:14,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401792469]
[2022-12-13 09:21:14,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:21:14,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-12-13 09:21:14,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:21:14,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-12-13 09:21:14,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-12-13 09:21:14,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:14,255 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:21:14,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 7 states have internal predecessors, (117), 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)
[2022-12-13 09:21:14,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:14,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:16,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:16,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:21:16,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0
[2022-12-13 09:21:16,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:21:16,839 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:21:16,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:21:16,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2128331964, now seen corresponding path program 1 times
[2022-12-13 09:21:16,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:21:16,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681213743]
[2022-12-13 09:21:16,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:21:16,844 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:21:16,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:21:16,846 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:21:16,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2022-12-13 09:21:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:21:16,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 13 conjunts are in the unsatisfiable core
[2022-12-13 09:21:16,977 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:21:17,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:21:17,316 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:21:17,316 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:21:17,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681213743]
[2022-12-13 09:21:17,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681213743] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:21:17,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:21:17,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2022-12-13 09:21:17,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345148756]
[2022-12-13 09:21:17,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:21:17,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-12-13 09:21:17,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:21:17,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-12-13 09:21:17,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132
[2022-12-13 09:21:17,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:17,320 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:21:17,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.636363636363637) internal successors, (117), 12 states have internal predecessors, (117), 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)
[2022-12-13 09:21:17,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:17,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:21:17,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:18,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:18,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:21:18,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2022-12-13 09:21:18,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0
[2022-12-13 09:21:19,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:21:19,192 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:21:19,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:21:19,192 INFO L85 PathProgramCache]: Analyzing trace with hash -292647207, now seen corresponding path program 1 times
[2022-12-13 09:21:19,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:21:19,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91302225]
[2022-12-13 09:21:19,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:21:19,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:21:19,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:21:19,194 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:21:19,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2022-12-13 09:21:19,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:21:19,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 28 conjunts are in the unsatisfiable core
[2022-12-13 09:21:19,317 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:21:19,523 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2022-12-13 09:21:20,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:21:20,162 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 09:21:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:21:25,229 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:21:25,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91302225]
[2022-12-13 09:21:25,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91302225] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 09:21:25,230 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-12-13 09:21:25,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 15] total 33
[2022-12-13 09:21:25,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609212466]
[2022-12-13 09:21:25,230 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-12-13 09:21:25,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states
[2022-12-13 09:21:25,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:21:25,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants.
[2022-12-13 09:21:25,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=921, Unknown=0, NotChecked=0, Total=1122
[2022-12-13 09:21:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:25,233 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:21:25,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 5.2727272727272725) internal successors, (174), 34 states have internal predecessors, (174), 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)
[2022-12-13 09:21:25,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:25,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:21:25,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states.
[2022-12-13 09:21:25,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:21:41,195 WARN L233 SmtUtils]: Spent 5.38s on a formula simplification. DAG size of input: 90 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:21:51,954 WARN L233 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 96 DAG size of output: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:22:09,942 WARN L233 SmtUtils]: Spent 6.85s on a formula simplification. DAG size of input: 94 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:22:51,532 WARN L233 SmtUtils]: Spent 5.72s on a formula simplification. DAG size of input: 85 DAG size of output: 66 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:23:12,390 WARN L233 SmtUtils]: Spent 7.14s on a formula simplification. DAG size of input: 65 DAG size of output: 63 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:23:18,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2022-12-13 09:23:22,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2022-12-13 09:23:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:23:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2022-12-13 09:23:23,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states.
[2022-12-13 09:23:23,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 2 remaining)
[2022-12-13 09:23:23,466 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 2 remaining)
[2022-12-13 09:23:23,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0
[2022-12-13 09:23:23,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:23,683 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2022-12-13 09:23:23,685 INFO L307 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork2 was SAFE,SAFE (1/5)
[2022-12-13 09:23:23,688 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-13 09:23:23,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-12-13 09:23:23,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3
[2022-12-13 09:23:23,689 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-12-13 09:23:23,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process
[2022-12-13 09:23:23,693 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2022-12-13 09:23:23,694 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork3 ========
[2022-12-13 09:23:23,694 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@443cedd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-13 09:23:23,694 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-12-13 09:23:28,009 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:23:28,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:23:28,009 INFO L85 PathProgramCache]: Analyzing trace with hash 345442253, now seen corresponding path program 1 times
[2022-12-13 09:23:28,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:23:28,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757221084]
[2022-12-13 09:23:28,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:23:28,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:28,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:23:28,011 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:23:28,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2022-12-13 09:23:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:23:28,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-12-13 09:23:28,097 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:23:28,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:23:28,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:23:28,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:23:28,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757221084]
[2022-12-13 09:23:28,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757221084] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:23:28,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:23:28,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 09:23:28,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360421452]
[2022-12-13 09:23:28,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:23:28,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 09:23:28,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:23:28,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 09:23:28,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 09:23:28,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:28,102 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:23:28,102 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 67.0) internal successors, (134), 2 states have internal predecessors, (134), 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)
[2022-12-13 09:23:28,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:28,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:28,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2022-12-13 09:23:28,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:28,342 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:23:28,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:23:28,343 INFO L85 PathProgramCache]: Analyzing trace with hash 2086336651, now seen corresponding path program 1 times
[2022-12-13 09:23:28,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:23:28,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1481185169]
[2022-12-13 09:23:28,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:23:28,343 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:28,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:23:28,344 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:23:28,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2022-12-13 09:23:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:23:28,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-12-13 09:23:28,471 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:23:28,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:23:28,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:23:28,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:23:28,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1481185169]
[2022-12-13 09:23:28,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1481185169] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:23:28,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:23:28,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 09:23:28,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087996759]
[2022-12-13 09:23:28,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:23:28,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-12-13 09:23:28,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:23:28,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-12-13 09:23:28,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-12-13 09:23:28,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:28,824 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:23:28,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 64.5) internal successors, (129), 3 states have internal predecessors, (129), 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)
[2022-12-13 09:23:28,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:28,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:29,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:29,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:23:29,771 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0
[2022-12-13 09:23:29,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:29,960 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:23:29,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:23:29,961 INFO L85 PathProgramCache]: Analyzing trace with hash -169605775, now seen corresponding path program 1 times
[2022-12-13 09:23:29,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:23:29,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42362789]
[2022-12-13 09:23:29,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:23:29,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:29,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:23:29,962 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:23:29,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2022-12-13 09:23:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:23:30,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-12-13 09:23:30,093 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:23:30,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2022-12-13 09:23:30,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-12-13 09:23:30,367 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:23:30,367 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:23:30,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42362789]
[2022-12-13 09:23:30,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42362789] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:23:30,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:23:30,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-12-13 09:23:30,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415896480]
[2022-12-13 09:23:30,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:23:30,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-12-13 09:23:30,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:23:30,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-12-13 09:23:30,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-12-13 09:23:30,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:30,369 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:23:30,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 23.333333333333332) internal successors, (140), 7 states have internal predecessors, (140), 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)
[2022-12-13 09:23:30,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:30,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:23:30,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:23:34,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:23:34,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0
[2022-12-13 09:23:34,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:34,775 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:23:34,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:23:34,776 INFO L85 PathProgramCache]: Analyzing trace with hash -169605774, now seen corresponding path program 1 times
[2022-12-13 09:23:34,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:23:34,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394073275]
[2022-12-13 09:23:34,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:23:34,776 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:34,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:23:34,777 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:23:34,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2022-12-13 09:23:34,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:23:34,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 13 conjunts are in the unsatisfiable core
[2022-12-13 09:23:34,928 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:23:36,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-12-13 09:23:36,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:23:36,032 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:23:36,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394073275]
[2022-12-13 09:23:36,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394073275] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:23:36,032 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:23:36,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2022-12-13 09:23:36,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296517271]
[2022-12-13 09:23:36,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:23:36,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-12-13 09:23:36,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:23:36,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-12-13 09:23:36,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132
[2022-12-13 09:23:36,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:36,034 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:23:36,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 11.75) internal successors, (141), 12 states have internal predecessors, (141), 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)
[2022-12-13 09:23:36,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:36,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:23:36,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:23:36,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:40,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:40,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:23:40,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:23:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:23:40,356 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0
[2022-12-13 09:23:40,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:40,548 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:23:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:23:40,550 INFO L85 PathProgramCache]: Analyzing trace with hash 116702174, now seen corresponding path program 1 times
[2022-12-13 09:23:40,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:23:40,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [825100626]
[2022-12-13 09:23:40,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:23:40,552 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:40,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:23:40,555 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:23:40,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2022-12-13 09:23:40,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:23:40,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 11 conjunts are in the unsatisfiable core
[2022-12-13 09:23:40,808 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:23:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-12-13 09:23:41,743 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:23:41,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:23:41,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [825100626]
[2022-12-13 09:23:41,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [825100626] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:23:41,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:23:41,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12
[2022-12-13 09:23:41,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645505342]
[2022-12-13 09:23:41,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:23:41,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-12-13 09:23:41,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:23:41,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-12-13 09:23:41,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132
[2022-12-13 09:23:41,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:41,745 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:23:41,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.25) internal successors, (147), 12 states have internal predecessors, (147), 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)
[2022-12-13 09:23:41,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:41,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:23:41,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:23:41,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:23:41,746 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:44,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:44,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:23:44,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:23:44,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:23:44,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2022-12-13 09:23:44,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0
[2022-12-13 09:23:44,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:44,217 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:23:44,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:23:44,218 INFO L85 PathProgramCache]: Analyzing trace with hash -491561101, now seen corresponding path program 1 times
[2022-12-13 09:23:44,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:23:44,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [554929680]
[2022-12-13 09:23:44,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:23:44,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:44,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:23:44,223 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:23:44,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process
[2022-12-13 09:23:44,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:23:44,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 20 conjunts are in the unsatisfiable core
[2022-12-13 09:23:44,445 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:23:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-12-13 09:23:46,624 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 09:23:50,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-12-13 09:23:50,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:23:50,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [554929680]
[2022-12-13 09:23:50,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [554929680] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 09:23:50,381 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-12-13 09:23:50,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 29
[2022-12-13 09:23:50,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909207341]
[2022-12-13 09:23:50,382 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-12-13 09:23:50,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states
[2022-12-13 09:23:50,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:23:50,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants.
[2022-12-13 09:23:50,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=574, Unknown=0, NotChecked=0, Total=870
[2022-12-13 09:23:50,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:50,385 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:23:50,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 9.068965517241379) internal successors, (263), 30 states have internal predecessors, (263), 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)
[2022-12-13 09:23:50,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:50,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:23:50,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:23:50,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:23:50,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states.
[2022-12-13 09:23:50,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:23:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:23:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:23:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:23:55,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2022-12-13 09:23:55,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2022-12-13 09:23:55,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0
[2022-12-13 09:23:55,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:55,834 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:23:55,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:23:55,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1037488273, now seen corresponding path program 1 times
[2022-12-13 09:23:55,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:23:55,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [907473381]
[2022-12-13 09:23:55,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:23:55,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:23:55,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:23:55,840 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:23:55,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process
[2022-12-13 09:23:56,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:23:56,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 33 conjunts are in the unsatisfiable core
[2022-12-13 09:23:56,145 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:23:57,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2022-12-13 09:24:01,051 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-12-13 09:24:01,051 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 09:24:09,154 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-12-13 09:24:09,154 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:24:09,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [907473381]
[2022-12-13 09:24:09,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [907473381] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 09:24:09,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-12-13 09:24:09,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24] total 48
[2022-12-13 09:24:09,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714961525]
[2022-12-13 09:24:09,155 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-12-13 09:24:09,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states
[2022-12-13 09:24:09,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:24:09,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants.
[2022-12-13 09:24:09,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=383, Invalid=1873, Unknown=0, NotChecked=0, Total=2256
[2022-12-13 09:24:09,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:24:09,159 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:24:09,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 6.020833333333333) internal successors, (289), 48 states have internal predecessors, (289), 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)
[2022-12-13 09:24:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:24:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:24:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:24:09,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:24:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states.
[2022-12-13 09:24:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states.
[2022-12-13 09:24:09,160 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:24:30,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:24:30,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:24:30,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:24:30,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:24:30,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2022-12-13 09:24:30,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2022-12-13 09:24:30,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-12-13 09:24:30,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0
[2022-12-13 09:24:30,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:24:30,632 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:24:30,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:24:30,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1160508678, now seen corresponding path program 2 times
[2022-12-13 09:24:30,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:24:30,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1568030184]
[2022-12-13 09:24:30,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-12-13 09:24:30,636 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:24:30,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:24:30,638 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:24:30,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process
[2022-12-13 09:24:30,780 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s)
[2022-12-13 09:24:30,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-12-13 09:24:30,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 23 conjunts are in the unsatisfiable core
[2022-12-13 09:24:30,789 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:24:31,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2022-12-13 09:24:32,778 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked.
[2022-12-13 09:24:32,778 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:24:32,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:24:32,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1568030184]
[2022-12-13 09:24:32,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1568030184] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:24:32,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:24:32,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14
[2022-12-13 09:24:32,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492335701]
[2022-12-13 09:24:32,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:24:32,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states
[2022-12-13 09:24:32,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:24:32,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants.
[2022-12-13 09:24:32,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210
[2022-12-13 09:24:32,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:24:32,780 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:24:32,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 10.928571428571429) internal successors, (153), 15 states have internal predecessors, (153), 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)
[2022-12-13 09:24:32,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:24:32,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:24:32,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:24:32,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:24:32,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states.
[2022-12-13 09:24:32,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states.
[2022-12-13 09:24:32,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states.
[2022-12-13 09:24:32,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:24:53,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-12-13 09:25:05,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2022-12-13 09:25:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-12-13 09:25:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-12-13 09:25:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2022-12-13 09:25:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2022-12-13 09:25:07,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states.
[2022-12-13 09:25:07,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states.
[2022-12-13 09:25:07,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-12-13 09:25:07,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 2 remaining)
[2022-12-13 09:25:07,945 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 2 remaining)
[2022-12-13 09:25:07,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0
[2022-12-13 09:25:08,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:25:08,196 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1]
[2022-12-13 09:25:08,197 INFO L307 ceAbstractionStarter]: Result for error location thread4Thread1of1ForFork3 was SAFE,SAFE (2/5)
[2022-12-13 09:25:08,206 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-13 09:25:08,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-12-13 09:25:08,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3
[2022-12-13 09:25:08,209 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-12-13 09:25:08,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (16)] Waiting until timeout for monitored process
[2022-12-13 09:25:08,215 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2022-12-13 09:25:08,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork0 ========
[2022-12-13 09:25:08,216 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@443cedd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-13 09:25:08,216 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-12-13 09:25:08,357 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:25:08,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:25:08,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1653045949, now seen corresponding path program 1 times
[2022-12-13 09:25:08,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:25:08,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [959107336]
[2022-12-13 09:25:08,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:25:08,358 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:25:08,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:25:08,359 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:25:08,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process
[2022-12-13 09:25:08,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:25:08,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-12-13 09:25:08,443 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:25:08,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:25:08,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:25:08,445 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:25:08,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [959107336]
[2022-12-13 09:25:08,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [959107336] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:25:08,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:25:08,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 09:25:08,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419536692]
[2022-12-13 09:25:08,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:25:08,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 09:25:08,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:25:08,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 09:25:08,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 09:25:08,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:08,446 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:25:08,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 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)
[2022-12-13 09:25:08,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:08,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:08,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0
[2022-12-13 09:25:08,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:25:08,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:25:08,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:25:08,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1270756991, now seen corresponding path program 1 times
[2022-12-13 09:25:08,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:25:08,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [142652540]
[2022-12-13 09:25:08,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:25:08,671 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:25:08,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:25:08,673 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:25:08,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process
[2022-12-13 09:25:08,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:25:08,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 13 conjunts are in the unsatisfiable core
[2022-12-13 09:25:08,837 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:25:09,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:25:09,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:25:09,688 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:25:09,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [142652540]
[2022-12-13 09:25:09,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [142652540] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:25:09,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:25:09,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2022-12-13 09:25:09,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994525420]
[2022-12-13 09:25:09,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:25:09,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-12-13 09:25:09,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:25:09,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-12-13 09:25:09,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132
[2022-12-13 09:25:09,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:09,691 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:25:09,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 10.090909090909092) internal successors, (111), 12 states have internal predecessors, (111), 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)
[2022-12-13 09:25:09,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:09,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:10,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:10,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:25:11,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0
[2022-12-13 09:25:11,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:25:11,198 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:25:11,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:25:11,199 INFO L85 PathProgramCache]: Analyzing trace with hash -643349267, now seen corresponding path program 1 times
[2022-12-13 09:25:11,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:25:11,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392512664]
[2022-12-13 09:25:11,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:25:11,200 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:25:11,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:25:11,203 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:25:11,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process
[2022-12-13 09:25:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:25:11,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-12-13 09:25:11,427 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:25:11,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2022-12-13 09:25:11,644 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size
[2022-12-13 09:25:11,644 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20
[2022-12-13 09:25:11,761 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-12-13 09:25:11,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:25:11,761 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:25:11,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392512664]
[2022-12-13 09:25:11,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392512664] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:25:11,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:25:11,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-12-13 09:25:11,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312133650]
[2022-12-13 09:25:11,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:25:11,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-12-13 09:25:11,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:25:11,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-12-13 09:25:11,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-12-13 09:25:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:11,764 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:25:11,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.5) internal successors, (117), 7 states have internal predecessors, (117), 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)
[2022-12-13 09:25:11,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:11,764 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:25:11,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:12,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:12,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:25:12,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2022-12-13 09:25:12,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0
[2022-12-13 09:25:12,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:25:12,483 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-12-13 09:25:12,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:25:12,484 INFO L85 PathProgramCache]: Analyzing trace with hash -643349266, now seen corresponding path program 1 times
[2022-12-13 09:25:12,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:25:12,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826208873]
[2022-12-13 09:25:12,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:25:12,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:25:12,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:25:12,488 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:25:12,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process
[2022-12-13 09:25:12,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:25:12,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 32 conjunts are in the unsatisfiable core
[2022-12-13 09:25:12,633 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:25:13,118 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2022-12-13 09:25:13,136 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2022-12-13 09:25:14,783 INFO L190 IndexEqualityManager]: detected not equals via solver
[2022-12-13 09:25:14,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16
[2022-12-13 09:25:14,803 INFO L321 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size
[2022-12-13 09:25:14,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13
[2022-12-13 09:25:15,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:25:15,310 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 09:25:34,285 INFO L173 IndexEqualityManager]: detected equality via solver
[2022-12-13 09:25:36,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:25:36,296 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:25:36,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826208873]
[2022-12-13 09:25:36,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826208873] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 09:25:36,296 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-12-13 09:25:36,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 35
[2022-12-13 09:25:36,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841043300]
[2022-12-13 09:25:36,296 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-12-13 09:25:36,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states
[2022-12-13 09:25:36,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:25:36,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants.
[2022-12-13 09:25:36,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=1048, Unknown=0, NotChecked=0, Total=1260
[2022-12-13 09:25:36,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:36,298 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:25:36,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.4) internal successors, (189), 36 states have internal predecessors, (189), 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)
[2022-12-13 09:25:36,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:25:36,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states.
[2022-12-13 09:25:36,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states.
[2022-12-13 09:25:36,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:26:04,987 WARN L233 SmtUtils]: Spent 28.25s on a formula simplification. DAG size of input: 116 DAG size of output: 115 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:26:28,664 WARN L233 SmtUtils]: Spent 22.23s on a formula simplification. DAG size of input: 102 DAG size of output: 101 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:26:30,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2022-12-13 09:26:33,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2022-12-13 09:26:36,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2022-12-13 09:26:54,661 WARN L233 SmtUtils]: Spent 15.99s on a formula simplification. DAG size of input: 107 DAG size of output: 106 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:26:58,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2022-12-13 09:27:15,702 WARN L233 SmtUtils]: Spent 15.38s on a formula simplification. DAG size of input: 104 DAG size of output: 103 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:27:45,398 WARN L233 SmtUtils]: Spent 20.52s on a formula simplification. DAG size of input: 118 DAG size of output: 115 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:28:06,578 WARN L233 SmtUtils]: Spent 19.79s on a formula simplification. DAG size of input: 76 DAG size of output: 74 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:28:26,688 WARN L233 SmtUtils]: Spent 14.65s on a formula simplification. DAG size of input: 125 DAG size of output: 105 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:28:50,407 WARN L233 SmtUtils]: Spent 12.05s on a formula simplification. DAG size of input: 105 DAG size of output: 86 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:29:15,403 WARN L233 SmtUtils]: Spent 23.09s on a formula simplification. DAG size of input: 119 DAG size of output: 100 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:29:29,902 WARN L233 SmtUtils]: Spent 11.19s on a formula simplification. DAG size of input: 105 DAG size of output: 86 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:29:43,216 WARN L233 SmtUtils]: Spent 11.53s on a formula simplification. DAG size of input: 103 DAG size of output: 84 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:30:14,483 WARN L233 SmtUtils]: Spent 8.20s on a formula simplification. DAG size of input: 57 DAG size of output: 56 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:30:23,390 WARN L233 SmtUtils]: Spent 7.17s on a formula simplification. DAG size of input: 61 DAG size of output: 60 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:30:36,631 WARN L233 SmtUtils]: Spent 8.10s on a formula simplification. DAG size of input: 72 DAG size of output: 71 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:31:36,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [1]
[2022-12-13 09:32:07,917 WARN L233 SmtUtils]: Spent 17.94s on a formula simplification. DAG size of input: 121 DAG size of output: 102 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:32:22,075 WARN L233 SmtUtils]: Spent 8.42s on a formula simplification. DAG size of input: 107 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:32:33,776 WARN L233 SmtUtils]: Spent 8.16s on a formula simplification. DAG size of input: 105 DAG size of output: 86 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:32:40,885 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 91 DAG size of output: 72 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:32:42,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:42,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2022-12-13 09:32:42,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2022-12-13 09:32:42,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states.
[2022-12-13 09:32:42,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 2 remaining)
[2022-12-13 09:32:42,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 2 remaining)
[2022-12-13 09:32:42,451 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0
[2022-12-13 09:32:42,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:32:42,652 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2022-12-13 09:32:42,652 INFO L307 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE,SAFE (3/5)
[2022-12-13 09:32:42,654 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-13 09:32:42,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-12-13 09:32:42,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3
[2022-12-13 09:32:42,655 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-12-13 09:32:42,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (21)] Waiting until timeout for monitored process
[2022-12-13 09:32:42,659 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2022-12-13 09:32:42,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ========
[2022-12-13 09:32:42,659 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@443cedd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-12-13 09:32:42,659 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations.
[2022-12-13 09:32:42,684 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 23 more)] ===
[2022-12-13 09:32:42,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:32:42,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1896191591, now seen corresponding path program 1 times
[2022-12-13 09:32:42,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:32:42,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602410367]
[2022-12-13 09:32:42,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:32:42,685 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:32:42,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:32:42,686 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:32:42,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process
[2022-12-13 09:32:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:32:42,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-12-13 09:32:42,750 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:32:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:32:42,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:32:42,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:32:42,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602410367]
[2022-12-13 09:32:42,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602410367] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:32:42,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:32:42,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-12-13 09:32:42,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597076116]
[2022-12-13 09:32:42,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:32:42,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-12-13 09:32:42,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:32:42,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-12-13 09:32:42,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-12-13 09:32:42,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:42,753 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:32:42,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 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)
[2022-12-13 09:32:42,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:42,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:42,763 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0
[2022-12-13 09:32:42,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:32:42,956 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 23 more)] ===
[2022-12-13 09:32:42,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:32:42,957 INFO L85 PathProgramCache]: Analyzing trace with hash -577083134, now seen corresponding path program 1 times
[2022-12-13 09:32:42,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:32:42,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1738749820]
[2022-12-13 09:32:42,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:32:42,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:32:42,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:32:42,962 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:32:42,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process
[2022-12-13 09:32:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:32:43,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-12-13 09:32:43,034 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:32:43,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7
[2022-12-13 09:32:43,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:32:43,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:32:43,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:32:43,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1738749820]
[2022-12-13 09:32:43,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1738749820] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:32:43,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:32:43,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-12-13 09:32:43,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967879098]
[2022-12-13 09:32:43,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:32:43,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-12-13 09:32:43,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:32:43,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-12-13 09:32:43,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-12-13 09:32:43,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:43,077 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:32:43,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 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)
[2022-12-13 09:32:43,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:43,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:43,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:43,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-12-13 09:32:43,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0
[2022-12-13 09:32:43,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:32:43,369 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 23 more)] ===
[2022-12-13 09:32:43,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:32:43,370 INFO L85 PathProgramCache]: Analyzing trace with hash -577083133, now seen corresponding path program 1 times
[2022-12-13 09:32:43,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:32:43,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51372067]
[2022-12-13 09:32:43,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:32:43,372 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:32:43,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:32:43,374 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:32:43,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process
[2022-12-13 09:32:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:32:43,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 14 conjunts are in the unsatisfiable core
[2022-12-13 09:32:43,449 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:32:43,804 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2022-12-13 09:32:44,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:32:44,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-12-13 09:32:44,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:32:44,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51372067]
[2022-12-13 09:32:44,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51372067] provided 1 perfect and 0 imperfect interpolant sequences
[2022-12-13 09:32:44,097 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-12-13 09:32:44,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11
[2022-12-13 09:32:44,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082315867]
[2022-12-13 09:32:44,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-12-13 09:32:44,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2022-12-13 09:32:44,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:32:44,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2022-12-13 09:32:44,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132
[2022-12-13 09:32:44,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:44,098 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:32:44,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.090909090909091) internal successors, (67), 12 states have internal predecessors, (67), 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)
[2022-12-13 09:32:44,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:44,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states.
[2022-12-13 09:32:44,099 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:45,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:45,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-12-13 09:32:45,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2022-12-13 09:32:45,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0
[2022-12-13 09:32:45,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:32:45,596 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 23 more)] ===
[2022-12-13 09:32:45,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:32:45,598 INFO L85 PathProgramCache]: Analyzing trace with hash 773674607, now seen corresponding path program 1 times
[2022-12-13 09:32:45,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:32:45,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206875964]
[2022-12-13 09:32:45,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-12-13 09:32:45,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:32:45,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:32:45,602 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:32:45,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process
[2022-12-13 09:32:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-12-13 09:32:45,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 17 conjunts are in the unsatisfiable core
[2022-12-13 09:32:45,678 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:32:46,036 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2022-12-13 09:32:46,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:32:46,743 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 09:32:48,502 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:32:48,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:32:48,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206875964]
[2022-12-13 09:32:48,503 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206875964] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 09:32:48,503 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-12-13 09:32:48,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24
[2022-12-13 09:32:48,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187109502]
[2022-12-13 09:32:48,503 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-12-13 09:32:48,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states
[2022-12-13 09:32:48,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:32:48,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants.
[2022-12-13 09:32:48,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=486, Unknown=0, NotChecked=0, Total=600
[2022-12-13 09:32:48,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:48,505 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:32:48,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.0) internal successors, (96), 25 states have internal predecessors, (96), 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)
[2022-12-13 09:32:48,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:48,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states.
[2022-12-13 09:32:48,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states.
[2022-12-13 09:32:48,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:54,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:32:54,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-12-13 09:32:54,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2022-12-13 09:32:54,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2022-12-13 09:32:54,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0
[2022-12-13 09:32:54,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:32:54,718 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 23 more)] ===
[2022-12-13 09:32:54,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:32:54,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1796624825, now seen corresponding path program 2 times
[2022-12-13 09:32:54,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:32:54,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [587359654]
[2022-12-13 09:32:54,719 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-12-13 09:32:54,719 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:32:54,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:32:54,720 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:32:54,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process
[2022-12-13 09:32:54,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-12-13 09:32:54,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-12-13 09:32:54,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 22 conjunts are in the unsatisfiable core
[2022-12-13 09:32:54,811 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:32:55,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2022-12-13 09:32:56,783 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:32:56,783 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 09:33:01,602 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:33:01,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:33:01,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [587359654]
[2022-12-13 09:33:01,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [587359654] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 09:33:01,602 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-12-13 09:33:01,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 34
[2022-12-13 09:33:01,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925363546]
[2022-12-13 09:33:01,603 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-12-13 09:33:01,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states
[2022-12-13 09:33:01,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:33:01,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants.
[2022-12-13 09:33:01,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=983, Unknown=0, NotChecked=0, Total=1190
[2022-12-13 09:33:01,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:33:01,605 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:33:01,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 3.5294117647058822) internal successors, (120), 35 states have internal predecessors, (120), 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)
[2022-12-13 09:33:01,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:33:01,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states.
[2022-12-13 09:33:01,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states.
[2022-12-13 09:33:01,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states.
[2022-12-13 09:33:01,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:33:27,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:33:27,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2022-12-13 09:33:27,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2022-12-13 09:33:27,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2022-12-13 09:33:27,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states.
[2022-12-13 09:33:27,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0
[2022-12-13 09:33:27,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:33:27,873 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 23 more)] ===
[2022-12-13 09:33:27,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-12-13 09:33:27,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1523494409, now seen corresponding path program 3 times
[2022-12-13 09:33:27,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-12-13 09:33:27,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [456833108]
[2022-12-13 09:33:27,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-12-13 09:33:27,876 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3
[2022-12-13 09:33:27,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat
[2022-12-13 09:33:27,878 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2022-12-13 09:33:27,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5edd03cd-d1c9-46ea-ae8c-c5c8f404a032/bin/ugemcutter-rbreBovr8w/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process
[2022-12-13 09:33:28,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s)
[2022-12-13 09:33:28,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-12-13 09:33:28,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 29 conjunts are in the unsatisfiable core
[2022-12-13 09:33:28,106 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-12-13 09:33:28,486 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7
[2022-12-13 09:33:31,527 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:33:31,527 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-12-13 09:33:41,131 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-12-13 09:33:41,131 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-12-13 09:33:41,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [456833108]
[2022-12-13 09:33:41,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [456833108] provided 0 perfect and 2 imperfect interpolant sequences
[2022-12-13 09:33:41,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-12-13 09:33:41,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 23] total 48
[2022-12-13 09:33:41,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658582815]
[2022-12-13 09:33:41,131 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-12-13 09:33:41,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states
[2022-12-13 09:33:41,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-12-13 09:33:41,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants.
[2022-12-13 09:33:41,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=366, Invalid=1986, Unknown=0, NotChecked=0, Total=2352
[2022-12-13 09:33:41,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:33:41,134 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-12-13 09:33:41,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 3.5) internal successors, (168), 49 states have internal predecessors, (168), 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)
[2022-12-13 09:33:41,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:33:41,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states.
[2022-12-13 09:33:41,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states.
[2022-12-13 09:33:41,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states.
[2022-12-13 09:33:41,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states.
[2022-12-13 09:33:41,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-12-13 09:34:12,514 WARN L233 SmtUtils]: Spent 6.42s on a formula simplification. DAG size of input: 175 DAG size of output: 123 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-12-13 09:34:27,569 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 160 DAG size of output: 113 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)