./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 4e77c044
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4ca9b729f2ec82a71f4bbd71180c30ba5c27c5d4
..........................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Writing human readable error path to file UltimateCounterExample.errorpath
Result:
FALSE
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-4e77c04
[2021-10-13 01:10:14,298 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-10-13 01:10:14,302 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-13 01:10:14,378 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-13 01:10:14,381 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-13 01:10:14,387 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-13 01:10:14,389 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-13 01:10:14,395 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-13 01:10:14,398 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-13 01:10:14,406 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-13 01:10:14,407 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-10-13 01:10:14,410 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-13 01:10:14,411 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-13 01:10:14,414 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-13 01:10:14,417 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-13 01:10:14,429 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-13 01:10:14,432 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-13 01:10:14,434 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-13 01:10:14,437 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-13 01:10:14,450 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-13 01:10:14,452 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-13 01:10:14,454 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-13 01:10:14,459 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-10-13 01:10:14,461 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-13 01:10:14,473 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-13 01:10:14,474 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-13 01:10:14,474 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-13 01:10:14,477 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-13 01:10:14,478 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-13 01:10:14,480 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-13 01:10:14,481 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-13 01:10:14,482 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-13 01:10:14,484 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-13 01:10:14,486 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-13 01:10:14,488 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-13 01:10:14,489 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-13 01:10:14,490 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-13 01:10:14,490 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-13 01:10:14,491 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-13 01:10:14,492 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-13 01:10:14,493 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-10-13 01:10:14,494 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-13 01:10:14,554 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-10-13 01:10:14,554 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-13 01:10:14,555 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-10-13 01:10:14,556 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-10-13 01:10:14,566 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-13 01:10:14,566 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-10-13 01:10:14,566 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-10-13 01:10:14,567 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-13 01:10:14,567 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-10-13 01:10:14,567 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-10-13 01:10:14,569 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-10-13 01:10:14,569 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-10-13 01:10:14,570 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-10-13 01:10:14,570 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-13 01:10:14,570 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-10-13 01:10:14,571 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-10-13 01:10:14,571 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-10-13 01:10:14,571 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-10-13 01:10:14,572 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-10-13 01:10:14,572 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-13 01:10:14,572 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-10-13 01:10:14,573 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-10-13 01:10:14,573 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-13 01:10:14,573 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-13 01:10:14,574 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-10-13 01:10:14,574 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-13 01:10:14,574 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-10-13 01:10:14,575 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-13 01:10:14,575 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-13 01:10:14,577 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-10-13 01:10:14,577 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_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/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_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt
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 ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ca9b729f2ec82a71f4bbd71180c30ba5c27c5d4
[2021-10-13 01:10:14,947 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-13 01:10:14,979 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-13 01:10:14,983 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-13 01:10:14,985 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-10-13 01:10:14,986 INFO  L275        PluginConnector]: CDTParser initialized
[2021-10-13 01:10:14,987 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i
[2021-10-13 01:10:15,077 INFO  L220              CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/data/6a8e9cd86/f5af8be2feca444d94ba1b37b141c7e9/FLAGa0d70c6ef
[2021-10-13 01:10:15,769 INFO  L306              CDTParser]: Found 1 translation units.
[2021-10-13 01:10:15,769 INFO  L160              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i
[2021-10-13 01:10:15,784 INFO  L349              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/data/6a8e9cd86/f5af8be2feca444d94ba1b37b141c7e9/FLAGa0d70c6ef
[2021-10-13 01:10:16,118 INFO  L357              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/data/6a8e9cd86/f5af8be2feca444d94ba1b37b141c7e9
[2021-10-13 01:10:16,123 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-13 01:10:16,125 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-13 01:10:16,127 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-13 01:10:16,127 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-13 01:10:16,132 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-13 01:10:16,133 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,134 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53097a29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16, skipping insertion in model container
[2021-10-13 01:10:16,135 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,143 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-10-13 01:10:16,157 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-10-13 01:10:16,350 WARN  L228   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_9aabefa5-c7f1-45b5-988c-697d0f734528/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i[300,313]
[2021-10-13 01:10:16,368 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-13 01:10:16,380 INFO  L203         MainTranslator]: Completed pre-run
[2021-10-13 01:10:16,396 WARN  L228   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_9aabefa5-c7f1-45b5-988c-697d0f734528/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i[300,313]
[2021-10-13 01:10:16,399 INFO  L206          PostProcessor]: Analyzing one entry point: main
[2021-10-13 01:10:16,413 INFO  L208         MainTranslator]: Completed translation
[2021-10-13 01:10:16,413 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16 WrapperNode
[2021-10-13 01:10:16,413 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-13 01:10:16,415 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-13 01:10:16,415 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-13 01:10:16,415 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-13 01:10:16,424 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,432 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,454 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-13 01:10:16,455 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-13 01:10:16,455 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-13 01:10:16,455 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-10-13 01:10:16,466 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,466 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,468 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,468 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,472 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,476 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,477 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,479 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-13 01:10:16,481 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-13 01:10:16,481 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-10-13 01:10:16,481 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-10-13 01:10:16,483 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16" (1/1) ...
[2021-10-13 01:10:16,492 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-13 01:10:16,507 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/z3
[2021-10-13 01:10:16,527 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-10-13 01:10:16,546 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-10-13 01:10:16,582 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-13 01:10:16,582 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-13 01:10:16,582 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-13 01:10:16,583 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-13 01:10:16,851 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-13 01:10:16,851 INFO  L299             CfgBuilder]: Removed 7 assume(true) statements.
[2021-10-13 01:10:16,853 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:10:16 BoogieIcfgContainer
[2021-10-13 01:10:16,854 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-13 01:10:16,856 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-13 01:10:16,856 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-10-13 01:10:16,861 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-10-13 01:10:16,861 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:10:16" (1/3) ...
[2021-10-13 01:10:16,862 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5850b68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:10:16, skipping insertion in model container
[2021-10-13 01:10:16,862 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:10:16" (2/3) ...
[2021-10-13 01:10:16,863 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5850b68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:10:16, skipping insertion in model container
[2021-10-13 01:10:16,863 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:10:16" (3/3) ...
[2021-10-13 01:10:16,865 INFO  L111   eAbstractionObserver]: Analyzing ICFG test_while_int.c_1.i
[2021-10-13 01:10:16,872 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-13 01:10:16,872 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-10-13 01:10:16,933 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-10-13 01:10:16,942 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-10-13 01:10:16,942 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-13 01:10:16,973 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-13 01:10:16,979 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2021-10-13 01:10:16,979 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 01:10:16,980 INFO  L512         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2021-10-13 01:10:16,981 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-13 01:10:16,988 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 01:10:16,989 INFO  L82        PathProgramCache]: Analyzing trace with hash 28699818, now seen corresponding path program 1 times
[2021-10-13 01:10:17,000 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 01:10:17,001 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438247999]
[2021-10-13 01:10:17,001 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 01:10:17,003 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 01:10:17,140 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 01:10:17,239 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 01:10:17,240 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 01:10:17,240 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438247999]
[2021-10-13 01:10:17,242 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438247999] provided 1 perfect and 0 imperfect interpolant sequences
[2021-10-13 01:10:17,242 INFO  L186   FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-13 01:10:17,242 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-10-13 01:10:17,245 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542067242]
[2021-10-13 01:10:17,251 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-10-13 01:10:17,252 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 01:10:17,269 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-10-13 01:10:17,270 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-13 01:10:17,284 INFO  L87              Difference]: Start difference. First operand  has 10 states, 8 states have (on average 1.5) internal successors, (12), 9 states have internal predecessors, (12), 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) Second operand  has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-13 01:10:17,371 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 01:10:17,371 INFO  L93              Difference]: Finished difference Result 21 states and 30 transitions.
[2021-10-13 01:10:17,372 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2021-10-13 01:10:17,373 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5
[2021-10-13 01:10:17,399 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 01:10:17,408 INFO  L225             Difference]: With dead ends: 21
[2021-10-13 01:10:17,408 INFO  L226             Difference]: Without dead ends: 9
[2021-10-13 01:10:17,412 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-10-13 01:10:17,434 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9 states.
[2021-10-13 01:10:17,466 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8.
[2021-10-13 01:10:17,468 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-13 01:10:17,469 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions.
[2021-10-13 01:10:17,470 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5
[2021-10-13 01:10:17,470 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 01:10:17,471 INFO  L470      AbstractCegarLoop]: Abstraction has 8 states and 8 transitions.
[2021-10-13 01:10:17,471 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-13 01:10:17,471 INFO  L276                IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions.
[2021-10-13 01:10:17,472 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2021-10-13 01:10:17,472 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 01:10:17,473 INFO  L512         BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1]
[2021-10-13 01:10:17,473 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-13 01:10:17,474 INFO  L402      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-13 01:10:17,475 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 01:10:17,475 INFO  L82        PathProgramCache]: Analyzing trace with hash 1810655527, now seen corresponding path program 1 times
[2021-10-13 01:10:17,476 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 01:10:17,476 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809576031]
[2021-10-13 01:10:17,476 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 01:10:17,477 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 01:10:17,501 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 01:10:17,575 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 01:10:17,575 INFO  L139   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-10-13 01:10:17,575 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809576031]
[2021-10-13 01:10:17,576 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809576031] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-13 01:10:17,576 INFO  L332   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108357429]
[2021-10-13 01:10:17,577 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 01:10:17,577 INFO  L170          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-13 01:10:17,577 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/z3
[2021-10-13 01:10:17,585 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-10-13 01:10:17,609 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-10-13 01:10:17,678 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-13 01:10:17,682 INFO  L263         TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-13 01:10:17,690 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2021-10-13 01:10:17,780 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-13 01:10:17,781 INFO  L160   FreeRefinementEngine]: IpTcStrategyModuleZ3 [108357429] provided 0 perfect and 1 imperfect interpolant sequences
[2021-10-13 01:10:17,781 INFO  L186   FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-13 01:10:17,781 INFO  L199   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2021-10-13 01:10:17,783 INFO  L115   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062576300]
[2021-10-13 01:10:17,784 INFO  L546      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-10-13 01:10:17,785 INFO  L103   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-13 01:10:17,786 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-10-13 01:10:17,787 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-10-13 01:10:17,787 INFO  L87              Difference]: Start difference. First operand 8 states and 8 transitions. Second operand  has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-13 01:10:17,809 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-13 01:10:17,809 INFO  L93              Difference]: Finished difference Result 13 states and 13 transitions.
[2021-10-13 01:10:17,810 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2021-10-13 01:10:17,810 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7
[2021-10-13 01:10:17,811 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-13 01:10:17,811 INFO  L225             Difference]: With dead ends: 13
[2021-10-13 01:10:17,812 INFO  L226             Difference]: Without dead ends: 11
[2021-10-13 01:10:17,813 INFO  L781         BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.3ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30
[2021-10-13 01:10:17,813 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 11 states.
[2021-10-13 01:10:17,816 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10.
[2021-10-13 01:10:17,816 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-13 01:10:17,817 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions.
[2021-10-13 01:10:17,817 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7
[2021-10-13 01:10:17,818 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2021-10-13 01:10:17,818 INFO  L470      AbstractCegarLoop]: Abstraction has 10 states and 10 transitions.
[2021-10-13 01:10:17,818 INFO  L471      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-10-13 01:10:17,819 INFO  L276                IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions.
[2021-10-13 01:10:17,819 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2021-10-13 01:10:17,820 INFO  L504         BasicCegarLoop]: Found error trace
[2021-10-13 01:10:17,820 INFO  L512         BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1]
[2021-10-13 01:10:17,866 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-10-13 01:10:18,045 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-13 01:10:18,046 INFO  L402      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-10-13 01:10:18,047 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-10-13 01:10:18,047 INFO  L82        PathProgramCache]: Analyzing trace with hash 578140772, now seen corresponding path program 2 times
[2021-10-13 01:10:18,047 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-13 01:10:18,048 INFO  L332   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052932004]
[2021-10-13 01:10:18,048 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-13 01:10:18,049 INFO  L128          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-10-13 01:10:18,088 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-13 01:10:18,089 INFO  L354             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-13 01:10:18,125 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-13 01:10:18,146 INFO  L133   FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-13 01:10:18,147 INFO  L626         BasicCegarLoop]: Counterexample is feasible
[2021-10-13 01:10:18,148 INFO  L764   garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION
[2021-10-13 01:10:18,151 WARN  L452      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-10-13 01:10:18,159 INFO  L179   ceAbstractionStarter]: Computing trace abstraction results
[2021-10-13 01:10:18,182 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:10:18 BoogieIcfgContainer
[2021-10-13 01:10:18,182 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-13 01:10:18,183 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-13 01:10:18,184 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2021-10-13 01:10:18,184 INFO  L275        PluginConnector]: Witness Printer initialized
[2021-10-13 01:10:18,185 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:10:16" (3/4) ...
[2021-10-13 01:10:18,187 INFO  L131         WitnessPrinter]: Generating witness for reachability counterexample
[2021-10-13 01:10:18,232 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/witness.graphml
[2021-10-13 01:10:18,232 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-13 01:10:18,235 INFO  L168              Benchmark]: Toolchain (without parser) took 2108.29 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 53.8 MB in the beginning and 73.0 MB in the end (delta: -19.2 MB). Peak memory consumption was 726.0 kB. Max. memory is 16.1 GB.
[2021-10-13 01:10:18,236 INFO  L168              Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 69.9 MB in the end (delta: 56.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-13 01:10:18,237 INFO  L168              Benchmark]: CACSL2BoogieTranslator took 286.97 ms. Allocated memory is still 94.4 MB. Free memory was 53.6 MB in the beginning and 65.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-13 01:10:18,237 INFO  L168              Benchmark]: Boogie Procedure Inliner took 39.22 ms. Allocated memory is still 94.4 MB. Free memory was 65.5 MB in the beginning and 64.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-13 01:10:18,238 INFO  L168              Benchmark]: Boogie Preprocessor took 24.80 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 63.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-13 01:10:18,239 INFO  L168              Benchmark]: RCFGBuilder took 373.24 ms. Allocated memory is still 94.4 MB. Free memory was 63.3 MB in the beginning and 54.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-13 01:10:18,241 INFO  L168              Benchmark]: TraceAbstraction took 1326.52 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 54.2 MB in the beginning and 74.4 MB in the end (delta: -20.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB.
[2021-10-13 01:10:18,241 INFO  L168              Benchmark]: Witness Printer took 49.21 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 73.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-13 01:10:18,247 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.39 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 69.9 MB in the end (delta: 56.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
 * CACSL2BoogieTranslator took 286.97 ms. Allocated memory is still 94.4 MB. Free memory was 53.6 MB in the beginning and 65.7 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * Boogie Procedure Inliner took 39.22 ms. Allocated memory is still 94.4 MB. Free memory was 65.5 MB in the beginning and 64.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB.
 * Boogie Preprocessor took 24.80 ms. Allocated memory is still 94.4 MB. Free memory was 64.3 MB in the beginning and 63.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * RCFGBuilder took 373.24 ms. Allocated memory is still 94.4 MB. Free memory was 63.3 MB in the beginning and 54.6 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
 * TraceAbstraction took 1326.52 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 54.2 MB in the beginning and 74.4 MB in the end (delta: -20.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 16.1 GB.
 * Witness Printer took 49.21 ms. Allocated memory is still 113.2 MB. Free memory was 74.4 MB in the beginning and 73.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - CounterExampleResult [Line: 8]: a call to reach_error is reachable
    a call to reach_error is reachable
We found a FailurePath: 
[L14]             int i=0;
[L15]  COND TRUE  i<5
[L16]             i++
[L18]             (i!=3) ? (0) : __blast_assert ()
[L15]  COND TRUE  i<5
[L16]             i++
[L18]             (i!=3) ? (0) : __blast_assert ()
[L15]  COND TRUE  i<5
[L16]             i++
[L18]             (i!=3) ? (0) : __blast_assert ()
[L8]              reach_error()

  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1226.5ms, OverallIterations: 3, TraceHistogramMax: 3, EmptinessCheckTime: 12.5ms, AutomataDifference: 187.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 25.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 12 SDtfs, 3 SDslu, 14 SDs, 0 SdLazy, 20 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 53.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 40.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 42.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 27.8ms SsaConstructionTime, 125.8ms SatisfiabilityAnalysisTime, 270.2ms InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be incorrect!
[2021-10-13 01:10:18,313 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aabefa5-c7f1-45b5-988c-697d0f734528/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...