./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for memory safety (deref-memtrack)
Using default analysis
Version 4e7fbc69
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_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am --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 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562
--- 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-4e7fbc6
[2022-11-23 06:46:28,385 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-23 06:46:28,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-23 06:46:28,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-23 06:46:28,411 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-23 06:46:28,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-23 06:46:28,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-23 06:46:28,421 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-23 06:46:28,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-23 06:46:28,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-23 06:46:28,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-23 06:46:28,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-23 06:46:28,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-23 06:46:28,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-23 06:46:28,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-23 06:46:28,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-23 06:46:28,445 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-23 06:46:28,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-23 06:46:28,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-23 06:46:28,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-23 06:46:28,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-23 06:46:28,460 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-23 06:46:28,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-23 06:46:28,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-23 06:46:28,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-23 06:46:28,470 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-23 06:46:28,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-23 06:46:28,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-23 06:46:28,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-23 06:46:28,472 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-23 06:46:28,472 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-23 06:46:28,473 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-23 06:46:28,474 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-23 06:46:28,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-23 06:46:28,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-23 06:46:28,476 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-23 06:46:28,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-23 06:46:28,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-23 06:46:28,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-23 06:46:28,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-23 06:46:28,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-23 06:46:28,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Default.epf
[2022-11-23 06:46:28,516 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-23 06:46:28,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-23 06:46:28,517 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-23 06:46:28,517 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-23 06:46:28,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-23 06:46:28,518 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-23 06:46:28,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-23 06:46:28,519 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-23 06:46:28,519 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-23 06:46:28,520 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-23 06:46:28,521 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-23 06:46:28,521 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-11-23 06:46:28,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-23 06:46:28,522 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-23 06:46:28,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-23 06:46:28,522 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2022-11-23 06:46:28,522 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2022-11-23 06:46:28,522 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2022-11-23 06:46:28,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-23 06:46:28,523 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-23 06:46:28,523 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-23 06:46:28,523 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-23 06:46:28,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-23 06:46:28,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-23 06:46:28,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-23 06:46:28,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 06:46:28,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-23 06:46:28,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-23 06:46:28,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-11-23 06:46:28,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-23 06:46:28,525 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-23 06:46:28,525 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL
[2022-11-23 06:46:28,525 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-11-23 06:46:28,526 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2022-11-23 06:46:28,526 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2022-11-23 06:46:28,526 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_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562
[2022-11-23 06:46:28,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-23 06:46:28,899 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-23 06:46:28,902 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-23 06:46:28,903 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-23 06:46:28,904 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-23 06:46:28,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c
[2022-11-23 06:46:32,010 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-11-23 06:46:32,245 INFO L351 CDTParser]: Found 1 translation units.
[2022-11-23 06:46:32,246 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c
[2022-11-23 06:46:32,254 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/data/b296ea525/7de039b0ed21436f9cedc5a085d0416d/FLAGb7ba9ff03
[2022-11-23 06:46:32,269 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/data/b296ea525/7de039b0ed21436f9cedc5a085d0416d
[2022-11-23 06:46:32,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-23 06:46:32,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-23 06:46:32,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-23 06:46:32,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-23 06:46:32,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-23 06:46:32,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:46:32" (1/1) ...
[2022-11-23 06:46:32,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729b97a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:32, skipping insertion in model container
[2022-11-23 06:46:32,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:46:32" (1/1) ...
[2022-11-23 06:46:32,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-23 06:46:32,317 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-23 06:46:32,480 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_d31925c3-de19-4115-9969-fb460a8a6d92/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284]
[2022-11-23 06:46:32,493 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-23 06:46:32,504 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation)
[2022-11-23 06:46:32,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1f0e2a0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:32, skipping insertion in model container
[2022-11-23 06:46:32,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-23 06:46:32,505 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner
[2022-11-23 06:46:32,507 INFO L158 Benchmark]: Toolchain (without parser) took 229.52ms. Allocated memory is still 178.3MB. Free memory was 133.2MB in the beginning and 123.6MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2022-11-23 06:46:32,508 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 178.3MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-23 06:46:32,509 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.26ms. Allocated memory is still 178.3MB. Free memory was 132.9MB in the beginning and 123.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2022-11-23 06:46:32,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.27ms. Allocated memory is still 178.3MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 223.26ms. Allocated memory is still 178.3MB. Free memory was 132.9MB in the beginning and 123.6MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
- UnsupportedSyntaxResult [Line: 90]: 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_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/config/GemCutterMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am --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 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562
--- 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-4e7fbc6
[2022-11-23 06:46:34,817 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2022-11-23 06:46:34,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-23 06:46:34,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-23 06:46:34,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-23 06:46:34,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-23 06:46:34,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-23 06:46:34,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-23 06:46:34,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-23 06:46:34,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-23 06:46:34,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2022-11-23 06:46:34,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-23 06:46:34,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-23 06:46:34,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-23 06:46:34,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-23 06:46:34,899 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-23 06:46:34,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-23 06:46:34,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-23 06:46:34,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-23 06:46:34,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-23 06:46:34,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-23 06:46:34,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-23 06:46:34,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2022-11-23 06:46:34,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-23 06:46:34,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-23 06:46:34,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-23 06:46:34,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-23 06:46:34,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-23 06:46:34,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-23 06:46:34,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-23 06:46:34,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-23 06:46:34,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-23 06:46:34,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-23 06:46:34,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-23 06:46:34,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-23 06:46:34,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-23 06:46:34,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-23 06:46:34,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-23 06:46:34,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-23 06:46:34,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-23 06:46:34,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-11-23 06:46:34,944 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/config/svcomp-DerefFreeMemtrack-32bit-GemCutter_Bitvector.epf
[2022-11-23 06:46:34,985 INFO L113 SettingsManager]: Loading preferences was successful
[2022-11-23 06:46:34,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-23 06:46:34,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-23 06:46:34,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-23 06:46:34,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-23 06:46:34,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-23 06:46:34,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-23 06:46:34,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-11-23 06:46:34,990 INFO L138 SettingsManager]: * Use SBE=true
[2022-11-23 06:46:34,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-23 06:46:34,992 INFO L138 SettingsManager]: * sizeof long=4
[2022-11-23 06:46:34,992 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2022-11-23 06:46:34,992 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-11-23 06:46:34,992 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-11-23 06:46:34,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-11-23 06:46:34,993 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true
[2022-11-23 06:46:34,993 INFO L138 SettingsManager]: * Bitprecise bitfields=true
[2022-11-23 06:46:34,993 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true
[2022-11-23 06:46:34,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-23 06:46:34,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true
[2022-11-23 06:46:34,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2022-11-23 06:46:34,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2022-11-23 06:46:34,994 INFO L138 SettingsManager]: * sizeof long double=12
[2022-11-23 06:46:34,994 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-11-23 06:46:34,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-23 06:46:34,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-11-23 06:46:34,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-11-23 06:46:34,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 06:46:34,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-23 06:46:34,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-11-23 06:46:34,998 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2022-11-23 06:46:34,998 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2022-11-23 06:46:34,998 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2022-11-23 06:46:34,998 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL
[2022-11-23 06:46:34,999 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-11-23 06:46:34,999 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE
[2022-11-23 06:46:34,999 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER
[2022-11-23 06:46:34,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2022-11-23 06:46:34,999 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_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) )
CHECK( init(main()), LTL(G valid-deref) )
CHECK( init(main()), LTL(G valid-memtrack) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c615a04683f0f8050243ec529c03e20511a5c93f5e823175650f11e9fefc562
[2022-11-23 06:46:35,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-23 06:46:35,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-23 06:46:35,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-23 06:46:35,468 INFO L271 PluginConnector]: Initializing CDTParser...
[2022-11-23 06:46:35,470 INFO L275 PluginConnector]: CDTParser initialized
[2022-11-23 06:46:35,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/../../sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c
[2022-11-23 06:46:38,643 INFO L500 CDTParser]: Created temporary CDT project at NULL
[2022-11-23 06:46:38,868 INFO L351 CDTParser]: Found 1 translation units.
[2022-11-23 06:46:38,868 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c
[2022-11-23 06:46:38,874 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/data/5b5bef158/ad87fa0651954d808c4cc1c8d2db560a/FLAGcacf60ce9
[2022-11-23 06:46:38,890 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/data/5b5bef158/ad87fa0651954d808c4cc1c8d2db560a
[2022-11-23 06:46:38,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-23 06:46:38,894 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-23 06:46:38,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-23 06:46:38,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-23 06:46:38,902 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-23 06:46:38,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:46:38" (1/1) ...
[2022-11-23 06:46:38,905 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29c81534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:38, skipping insertion in model container
[2022-11-23 06:46:38,905 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:46:38" (1/1) ...
[2022-11-23 06:46:38,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2022-11-23 06:46:38,946 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-23 06:46:39,113 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_d31925c3-de19-4115-9969-fb460a8a6d92/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284]
[2022-11-23 06:46:39,139 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-23 06:46:39,168 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution]
[2022-11-23 06:46:39,171 INFO L178 MainTranslator]: Built tables and reachable declarations
[2022-11-23 06:46:39,183 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_d31925c3-de19-4115-9969-fb460a8a6d92/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284]
[2022-11-23 06:46:39,190 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-23 06:46:39,196 INFO L203 MainTranslator]: Completed pre-run
[2022-11-23 06:46:39,219 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_d31925c3-de19-4115-9969-fb460a8a6d92/sv-benchmarks/c/weaver/popl20-bad-counter-queue2.wvr.c[2271,2284]
[2022-11-23 06:46:39,226 INFO L210 PostProcessor]: Analyzing one entry point: main
[2022-11-23 06:46:39,243 INFO L208 MainTranslator]: Completed translation
[2022-11-23 06:46:39,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39 WrapperNode
[2022-11-23 06:46:39,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-23 06:46:39,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-23 06:46:39,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-23 06:46:39,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-23 06:46:39,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (1/1) ...
[2022-11-23 06:46:39,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (1/1) ...
[2022-11-23 06:46:39,297 INFO L138 Inliner]: procedures = 28, calls = 36, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 134
[2022-11-23 06:46:39,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-23 06:46:39,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-23 06:46:39,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-23 06:46:39,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-11-23 06:46:39,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (1/1) ...
[2022-11-23 06:46:39,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (1/1) ...
[2022-11-23 06:46:39,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (1/1) ...
[2022-11-23 06:46:39,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (1/1) ...
[2022-11-23 06:46:39,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (1/1) ...
[2022-11-23 06:46:39,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (1/1) ...
[2022-11-23 06:46:39,354 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (1/1) ...
[2022-11-23 06:46:39,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (1/1) ...
[2022-11-23 06:46:39,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-23 06:46:39,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-23 06:46:39,360 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-11-23 06:46:39,360 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-11-23 06:46:39,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (1/1) ...
[2022-11-23 06:46:39,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 06:46:39,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/z3
[2022-11-23 06:46:39,399 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-23 06:46:39,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-23 06:46:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-11-23 06:46:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2022-11-23 06:46:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-23 06:46:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4
[2022-11-23 06:46:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2022-11-23 06:46:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2022-11-23 06:46:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2022-11-23 06:46:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2022-11-23 06:46:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end
[2022-11-23 06:46:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin
[2022-11-23 06:46:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap
[2022-11-23 06:46:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-23 06:46:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-23 06:46:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-23 06:46:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4
[2022-11-23 06:46:39,462 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-11-23 06:46:39,618 INFO L235 CfgBuilder]: Building ICFG
[2022-11-23 06:46:39,620 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-23 06:46:40,161 INFO L276 CfgBuilder]: Performing block encoding
[2022-11-23 06:46:40,377 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-23 06:46:40,391 INFO L300 CfgBuilder]: Removed 3 assume(true) statements.
[2022-11-23 06:46:40,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:46:40 BoogieIcfgContainer
[2022-11-23 06:46:40,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-23 06:46:40,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-23 06:46:40,396 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-11-23 06:46:40,399 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-11-23 06:46:40,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:46:38" (1/3) ...
[2022-11-23 06:46:40,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cc4cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:46:40, skipping insertion in model container
[2022-11-23 06:46:40,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:46:39" (2/3) ...
[2022-11-23 06:46:40,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cc4cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:46:40, skipping insertion in model container
[2022-11-23 06:46:40,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:46:40" (3/3) ...
[2022-11-23 06:46:40,402 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-counter-queue2.wvr.c
[2022-11-23 06:46:40,424 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-23 06:46:40,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations.
[2022-11-23 06:46:40,425 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-11-23 06:46:40,556 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions.
[2022-11-23 06:46:40,609 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-23 06:46:40,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-11-23 06:46:40,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/z3
[2022-11-23 06:46:40,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null)
[2022-11-23 06:46:40,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process
[2022-11-23 06:46:40,684 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations.
[2022-11-23 06:46:40,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork0 ========
[2022-11-23 06:46:40,706 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;@46ebaf99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-23 06:46:40,707 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations.
[2022-11-23 06:46:41,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:46:41,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:46:41,180 INFO L85 PathProgramCache]: Analyzing trace with hash -923394593, now seen corresponding path program 1 times
[2022-11-23 06:46:41,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:46:41,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448397298]
[2022-11-23 06:46:41,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 06:46:41,199 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
[2022-11-23 06:46:41,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:46:41,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:46:41,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:46:41,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 06:46:41,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core
[2022-11-23 06:46:41,392 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:46:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 06:46:41,427 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-23 06:46:41,428 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 06:46:41,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [448397298]
[2022-11-23 06:46:41,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [448397298] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 06:46:41,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-23 06:46:41,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-23 06:46:41,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608066298]
[2022-11-23 06:46:41,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 06:46:41,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-11-23 06:46:41,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 06:46:41,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-11-23 06:46:41,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-11-23 06:46:41,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:41,487 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 06:46:41,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 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)
[2022-11-23 06:46:41,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:41,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:41,575 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:46:41,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:46:41,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:46:41,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:46:41,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1131333468, now seen corresponding path program 1 times
[2022-11-23 06:46:41,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:46:41,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1004385111]
[2022-11-23 06:46:41,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 06:46:41,778 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
[2022-11-23 06:46:41,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:46:41,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:46:41,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:46:41,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 06:46:41,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 7 conjunts are in the unsatisfiable core
[2022-11-23 06:46:41,916 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:46:41,952 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
[2022-11-23 06:46:42,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 06:46:42,076 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-23 06:46:42,076 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 06:46:42,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1004385111]
[2022-11-23 06:46:42,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1004385111] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 06:46:42,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-23 06:46:42,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2022-11-23 06:46:42,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549341820]
[2022-11-23 06:46:42,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 06:46:42,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2022-11-23 06:46:42,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 06:46:42,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2022-11-23 06:46:42,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42
[2022-11-23 06:46:42,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:42,083 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 06:46:42,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 7 states have internal predecessors, (60), 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)
[2022-11-23 06:46:42,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:42,085 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:42,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:42,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:46:42,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)] Forceful destruction successful, exit code 0
[2022-11-23 06:46:42,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:46:42,719 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:46:42,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:46:42,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1131333469, now seen corresponding path program 1 times
[2022-11-23 06:46:42,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:46:42,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601073524]
[2022-11-23 06:46:42,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 06:46:42,721 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
[2022-11-23 06:46:42,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:46:42,723 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:46:42,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:46:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 06:46:42,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 22 conjunts are in the unsatisfiable core
[2022-11-23 06:46:42,848 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:46:43,271 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
[2022-11-23 06:46:43,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 06:46:43,805 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-23 06:46:43,805 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 06:46:43,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601073524]
[2022-11-23 06:46:43,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601073524] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 06:46:43,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-23 06:46:43,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-11-23 06:46:43,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474413709]
[2022-11-23 06:46:43,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 06:46:43,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2022-11-23 06:46:43,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 06:46:43,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2022-11-23 06:46:43,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272
[2022-11-23 06:46:43,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:43,809 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 06:46:43,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.75) internal successors, (60), 17 states have internal predecessors, (60), 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)
[2022-11-23 06:46:43,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:43,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:46:43,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:46,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:46,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:46:46,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:46:46,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2022-11-23 06:46:46,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:46:46,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:46:46,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:46:46,432 INFO L85 PathProgramCache]: Analyzing trace with hash -57715, now seen corresponding path program 1 times
[2022-11-23 06:46:46,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:46:46,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193236651]
[2022-11-23 06:46:46,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 06:46:46,433 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
[2022-11-23 06:46:46,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:46:46,438 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:46:46,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:46:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 06:46:46,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 24 conjunts are in the unsatisfiable core
[2022-11-23 06:46:46,567 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:46:46,780 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
[2022-11-23 06:46:47,500 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 06:46:47,501 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2022-11-23 06:46:47,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 06:46:47,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193236651]
[2022-11-23 06:46:47,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193236651] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 06:46:47,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-23 06:46:47,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16
[2022-11-23 06:46:47,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27173233]
[2022-11-23 06:46:47,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 06:46:47,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states
[2022-11-23 06:46:47,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 06:46:47,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants.
[2022-11-23 06:46:47,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240
[2022-11-23 06:46:47,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:47,505 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 06:46:47,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 4.0625) internal successors, (65), 16 states have internal predecessors, (65), 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)
[2022-11-23 06:46:47,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:47,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:46:47,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:46:47,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:49,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:49,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:46:49,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:46:49,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:46:49,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:46:49,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:46:49,900 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:46:49,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:46:49,901 INFO L85 PathProgramCache]: Analyzing trace with hash 317109649, now seen corresponding path program 1 times
[2022-11-23 06:46:49,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:46:49,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [746909170]
[2022-11-23 06:46:49,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 06:46:49,902 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
[2022-11-23 06:46:49,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:46:49,903 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:46:49,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2022-11-23 06:46:50,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 06:46:50,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 25 conjunts are in the unsatisfiable core
[2022-11-23 06:46:50,058 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:46:50,394 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
[2022-11-23 06:46:51,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-23 06:46:51,233 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 06:46:54,612 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2022-11-23 06:46:54,613 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 06:46:54,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [746909170]
[2022-11-23 06:46:54,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [746909170] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 06:46:54,613 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-23 06:46:54,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36
[2022-11-23 06:46:54,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894452240]
[2022-11-23 06:46:54,614 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-23 06:46:54,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states
[2022-11-23 06:46:54,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 06:46:54,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants.
[2022-11-23 06:46:54,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=1186, Unknown=0, NotChecked=0, Total=1332
[2022-11-23 06:46:54,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:54,616 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 06:46:54,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.361111111111111) internal successors, (121), 37 states have internal predecessors, (121), 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)
[2022-11-23 06:46:54,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:46:54,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:46:54,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:46:54,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:46:54,617 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:47:03,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:47:03,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:47:03,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:47:03,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:47:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:47:03,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2022-11-23 06:47:04,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:47:04,008 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:47:04,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:47:04,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1750106769, now seen corresponding path program 2 times
[2022-11-23 06:47:04,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:47:04,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636757760]
[2022-11-23 06:47:04,010 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-11-23 06:47:04,010 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
[2022-11-23 06:47:04,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:47:04,011 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:47:04,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:47:04,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-11-23 06:47:04,167 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-23 06:47:04,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 30 conjunts are in the unsatisfiable core
[2022-11-23 06:47:04,176 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:47:04,384 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
[2022-11-23 06:47:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2022-11-23 06:47:05,397 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 06:47:10,738 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 06:47:10,739 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 06:47:10,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636757760]
[2022-11-23 06:47:10,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636757760] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 06:47:10,739 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-23 06:47:10,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21] total 40
[2022-11-23 06:47:10,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495043402]
[2022-11-23 06:47:10,740 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-23 06:47:10,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states
[2022-11-23 06:47:10,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 06:47:10,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants.
[2022-11-23 06:47:10,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=1404, Unknown=0, NotChecked=0, Total=1560
[2022-11-23 06:47:10,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:47:10,743 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 06:47:10,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.3) internal successors, (132), 40 states have internal predecessors, (132), 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)
[2022-11-23 06:47:10,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:47:10,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:47:10,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:47:10,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:47:10,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:47:10,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:47:24,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:47:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:47:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:47:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:47:24,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:47:24,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-11-23 06:47:24,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:47:24,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:47:24,321 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:47:24,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:47:24,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1104253333, now seen corresponding path program 3 times
[2022-11-23 06:47:24,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:47:24,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [917413927]
[2022-11-23 06:47:24,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-11-23 06:47:24,322 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
[2022-11-23 06:47:24,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:47:24,323 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:47:24,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:47:24,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2022-11-23 06:47:24,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-23 06:47:24,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 33 conjunts are in the unsatisfiable core
[2022-11-23 06:47:24,613 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:47:24,811 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
[2022-11-23 06:47:26,297 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 06:47:26,297 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 06:47:34,326 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 06:47:34,327 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 06:47:34,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [917413927]
[2022-11-23 06:47:34,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [917413927] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 06:47:34,327 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-23 06:47:34,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46
[2022-11-23 06:47:34,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93364950]
[2022-11-23 06:47:34,328 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-23 06:47:34,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states
[2022-11-23 06:47:34,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 06:47:34,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants.
[2022-11-23 06:47:34,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=1870, Unknown=0, NotChecked=0, Total=2070
[2022-11-23 06:47:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:47:34,331 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 06:47:34,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.217391304347826) internal successors, (148), 46 states have internal predecessors, (148), 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)
[2022-11-23 06:47:34,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:47:34,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:47:34,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:47:34,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:47:34,332 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:47:34,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states.
[2022-11-23 06:47:34,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:47:59,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:47:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:47:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:47:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:47:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:47:59,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-11-23 06:47:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states.
[2022-11-23 06:47:59,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2022-11-23 06:47:59,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:47:59,284 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:47:59,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:47:59,284 INFO L85 PathProgramCache]: Analyzing trace with hash -2019275367, now seen corresponding path program 4 times
[2022-11-23 06:47:59,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:47:59,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1960263866]
[2022-11-23 06:47:59,285 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-11-23 06:47:59,285 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
[2022-11-23 06:47:59,285 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:47:59,286 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:47:59,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:47:59,460 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-11-23 06:47:59,460 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-23 06:47:59,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 30 conjunts are in the unsatisfiable core
[2022-11-23 06:47:59,471 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:47:59,748 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
[2022-11-23 06:48:01,316 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2022-11-23 06:48:01,316 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 06:48:09,343 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2022-11-23 06:48:09,344 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 06:48:09,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1960263866]
[2022-11-23 06:48:09,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1960263866] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 06:48:09,344 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-23 06:48:09,344 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23] total 46
[2022-11-23 06:48:09,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591951868]
[2022-11-23 06:48:09,344 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-23 06:48:09,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states
[2022-11-23 06:48:09,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 06:48:09,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants.
[2022-11-23 06:48:09,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1948, Unknown=0, NotChecked=0, Total=2162
[2022-11-23 06:48:09,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:48:09,348 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 06:48:09,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 3.0652173913043477) internal successors, (141), 47 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)
[2022-11-23 06:48:09,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:48:09,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:48:09,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:48:09,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:48:09,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:48:09,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states.
[2022-11-23 06:48:09,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states.
[2022-11-23 06:48:09,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:48:45,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:48:45,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:48:45,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:48:45,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:48:45,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:48:45,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-11-23 06:48:45,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states.
[2022-11-23 06:48:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states.
[2022-11-23 06:48:45,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0
[2022-11-23 06:48:45,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:48:45,627 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:48:45,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:48:45,628 INFO L85 PathProgramCache]: Analyzing trace with hash -597208167, now seen corresponding path program 5 times
[2022-11-23 06:48:45,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:48:45,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636313716]
[2022-11-23 06:48:45,628 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-11-23 06:48:45,628 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
[2022-11-23 06:48:45,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:48:45,630 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:48:45,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:48:45,933 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s)
[2022-11-23 06:48:45,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-23 06:48:45,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 42 conjunts are in the unsatisfiable core
[2022-11-23 06:48:45,948 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:48:46,129 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
[2022-11-23 06:48:48,018 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 68 proven. 42 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked.
[2022-11-23 06:48:48,018 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 06:49:01,832 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 06:49:01,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 06:49:01,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636313716]
[2022-11-23 06:49:01,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636313716] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 06:49:01,833 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-23 06:49:01,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 33] total 60
[2022-11-23 06:49:01,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357193143]
[2022-11-23 06:49:01,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-23 06:49:01,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states
[2022-11-23 06:49:01,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 06:49:01,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants.
[2022-11-23 06:49:01,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=3276, Unknown=0, NotChecked=0, Total=3540
[2022-11-23 06:49:01,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:49:01,837 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 06:49:01,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.1) internal successors, (186), 60 states have internal predecessors, (186), 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)
[2022-11-23 06:49:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:49:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:49:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:49:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:49:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:49:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states.
[2022-11-23 06:49:01,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states.
[2022-11-23 06:49:01,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states.
[2022-11-23 06:49:01,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:49:44,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:49:44,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:49:44,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:49:44,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:49:44,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:49:44,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-11-23 06:49:44,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states.
[2022-11-23 06:49:44,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states.
[2022-11-23 06:49:44,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states.
[2022-11-23 06:49:44,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2022-11-23 06:49:44,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:49:44,407 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:49:44,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:49:44,408 INFO L85 PathProgramCache]: Analyzing trace with hash 223040157, now seen corresponding path program 6 times
[2022-11-23 06:49:44,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:49:44,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47212934]
[2022-11-23 06:49:44,408 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-11-23 06:49:44,409 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
[2022-11-23 06:49:44,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:49:44,410 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:49:44,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:49:44,877 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s)
[2022-11-23 06:49:44,877 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-23 06:49:44,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 37 conjunts are in the unsatisfiable core
[2022-11-23 06:49:44,896 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:49:45,190 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
[2022-11-23 06:49:47,570 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2022-11-23 06:49:47,570 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 06:50:01,331 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked.
[2022-11-23 06:50:01,331 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 06:50:01,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47212934]
[2022-11-23 06:50:01,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47212934] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 06:50:01,331 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-23 06:50:01,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30] total 60
[2022-11-23 06:50:01,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518080836]
[2022-11-23 06:50:01,331 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-23 06:50:01,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states
[2022-11-23 06:50:01,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 06:50:01,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants.
[2022-11-23 06:50:01,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=3322, Unknown=0, NotChecked=0, Total=3660
[2022-11-23 06:50:01,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:50:01,335 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 06:50:01,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 3.0166666666666666) internal successors, (181), 61 states have internal predecessors, (181), 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)
[2022-11-23 06:50:01,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:50:01,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:50:01,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:50:01,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:50:01,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:50:01,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states.
[2022-11-23 06:50:01,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states.
[2022-11-23 06:50:01,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states.
[2022-11-23 06:50:01,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states.
[2022-11-23 06:50:01,336 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:50:40,827 WARN L233 SmtUtils]: Spent 8.47s on a formula simplification. DAG size of input: 190 DAG size of output: 137 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-23 06:51:02,851 WARN L233 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 175 DAG size of output: 127 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-23 06:51:17,235 WARN L233 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 170 DAG size of output: 123 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-23 06:51:43,696 WARN L233 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 155 DAG size of output: 113 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-23 06:51:59,712 WARN L233 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 150 DAG size of output: 109 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)
[2022-11-23 06:54:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:54:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:54:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:54:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:54:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:54:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-11-23 06:54:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states.
[2022-11-23 06:54:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states.
[2022-11-23 06:54:17,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states.
[2022-11-23 06:54:17,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states.
[2022-11-23 06:54:17,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0
[2022-11-23 06:54:17,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:54:17,745 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:54:17,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:54:17,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1385559395, now seen corresponding path program 7 times
[2022-11-23 06:54:17,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:54:17,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [634702502]
[2022-11-23 06:54:17,747 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-11-23 06:54:17,747 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
[2022-11-23 06:54:17,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:54:17,748 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:54:17,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:54:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 06:54:18,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 60 conjunts are in the unsatisfiable core
[2022-11-23 06:54:18,174 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:54:18,379 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
[2022-11-23 06:54:21,980 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 296 proven. 159 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked.
[2022-11-23 06:54:21,980 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 06:54:53,726 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 06:54:53,727 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 06:54:53,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [634702502]
[2022-11-23 06:54:53,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [634702502] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 06:54:53,727 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-23 06:54:53,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 51] total 88
[2022-11-23 06:54:53,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870092221]
[2022-11-23 06:54:53,728 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-23 06:54:53,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 88 states
[2022-11-23 06:54:53,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 06:54:53,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants.
[2022-11-23 06:54:53,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=459, Invalid=7197, Unknown=0, NotChecked=0, Total=7656
[2022-11-23 06:54:53,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:54:53,732 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 06:54:53,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.9318181818181817) internal successors, (258), 88 states have internal predecessors, (258), 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)
[2022-11-23 06:54:53,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:54:53,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:54:53,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:54:53,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:54:53,733 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:54:53,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states.
[2022-11-23 06:54:53,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states.
[2022-11-23 06:54:53,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states.
[2022-11-23 06:54:53,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states.
[2022-11-23 06:54:53,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states.
[2022-11-23 06:54:53,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:59:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 06:59:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2022-11-23 06:59:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2022-11-23 06:59:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2022-11-23 06:59:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2022-11-23 06:59:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states.
[2022-11-23 06:59:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states.
[2022-11-23 06:59:43,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states.
[2022-11-23 06:59:43,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states.
[2022-11-23 06:59:43,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states.
[2022-11-23 06:59:43,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states.
[2022-11-23 06:59:43,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)] Forceful destruction successful, exit code 0
[2022-11-23 06:59:43,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:59:43,557 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread2Err0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, thread2Err1REQUIRES_VIOLATIONMEMORY_DEREFERENCE] ===
[2022-11-23 06:59:43,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 06:59:43,557 INFO L85 PathProgramCache]: Analyzing trace with hash -2010124855, now seen corresponding path program 8 times
[2022-11-23 06:59:43,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF
[2022-11-23 06:59:43,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [683603711]
[2022-11-23 06:59:43,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-11-23 06:59:43,558 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
[2022-11-23 06:59:43,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/mathsat
[2022-11-23 06:59:43,559 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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)
[2022-11-23 06:59:43,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d31925c3-de19-4115-9969-fb460a8a6d92/bin/ugemcutter-1C6z4D84am/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
[2022-11-23 06:59:43,906 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-11-23 06:59:43,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-23 06:59:43,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 64 conjunts are in the unsatisfiable core
[2022-11-23 06:59:43,935 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 06:59:44,117 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
[2022-11-23 06:59:50,928 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 77 proven. 620 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 06:59:50,929 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 07:00:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 697 backedges. 0 proven. 697 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 07:00:30,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2022-11-23 07:00:30,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [683603711]
[2022-11-23 07:00:30,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [683603711] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 07:00:30,864 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2022-11-23 07:00:30,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 55] total 110
[2022-11-23 07:00:30,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382577829]
[2022-11-23 07:00:30,865 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2022-11-23 07:00:30,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 110 states
[2022-11-23 07:00:30,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2022-11-23 07:00:30,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants.
[2022-11-23 07:00:30,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=933, Invalid=11057, Unknown=0, NotChecked=0, Total=11990
[2022-11-23 07:00:30,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-11-23 07:00:30,871 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-11-23 07:00:30,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 2.8545454545454545) internal successors, (314), 110 states have internal predecessors, (314), 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)
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states.
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states.
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states.
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states.
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states.
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states.
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states.
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states.
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states.
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states.
[2022-11-23 07:00:30,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.