./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/termination-15/count_up_alloca.i --full-output --architecture 64bit


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


Checking for memory safety (deref-memtrack)
Using default analysis
Version 4e7fbc69
Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/termination-15/count_up_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f12e3955ea6fcca41dc2c68fc8e1d5a42d0369455d727c76f4dfb832d3060ba5
--- 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 15:07:53,668 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-11-23 15:07:53,670 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-11-23 15:07:53,709 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-11-23 15:07:53,713 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-11-23 15:07:53,718 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-11-23 15:07:53,719 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-11-23 15:07:53,721 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-11-23 15:07:53,723 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-11-23 15:07:53,724 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-11-23 15:07:53,725 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-11-23 15:07:53,726 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-11-23 15:07:53,726 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-11-23 15:07:53,727 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-11-23 15:07:53,729 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-11-23 15:07:53,730 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-11-23 15:07:53,731 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-11-23 15:07:53,732 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-11-23 15:07:53,734 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-11-23 15:07:53,736 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-11-23 15:07:53,737 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-11-23 15:07:53,739 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-11-23 15:07:53,740 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-11-23 15:07:53,741 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-11-23 15:07:53,745 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-11-23 15:07:53,746 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-11-23 15:07:53,746 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-11-23 15:07:53,747 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-11-23 15:07:53,748 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-11-23 15:07:53,749 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-11-23 15:07:53,749 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-11-23 15:07:53,750 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-11-23 15:07:53,751 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-11-23 15:07:53,752 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-11-23 15:07:53,753 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-11-23 15:07:53,754 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-11-23 15:07:53,755 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-11-23 15:07:53,755 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-11-23 15:07:53,755 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-11-23 15:07:53,757 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-11-23 15:07:53,757 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-11-23 15:07:53,758 INFO  L101        SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/config/svcomp-DerefFreeMemtrack-64bit-Taipan_Default.epf
[2022-11-23 15:07:53,798 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-11-23 15:07:53,799 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-11-23 15:07:53,799 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-11-23 15:07:53,799 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-11-23 15:07:53,800 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-11-23 15:07:53,800 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-11-23 15:07:53,801 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-11-23 15:07:53,801 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-11-23 15:07:53,801 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-11-23 15:07:53,802 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-11-23 15:07:53,802 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-11-23 15:07:53,802 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-11-23 15:07:53,802 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-11-23 15:07:53,803 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-11-23 15:07:53,803 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-11-23 15:07:53,803 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-11-23 15:07:53,804 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-11-23 15:07:53,804 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-11-23 15:07:53,805 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-11-23 15:07:53,805 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2022-11-23 15:07:53,805 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-11-23 15:07:53,806 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-11-23 15:07:53,806 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-11-23 15:07:53,806 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-11-23 15:07:53,806 INFO  L138        SettingsManager]:  * Check for the main procedure if all allocated memory was freed=true
[2022-11-23 15:07:53,807 INFO  L138        SettingsManager]:  * Bitprecise bitfields=true
[2022-11-23 15:07:53,807 INFO  L138        SettingsManager]:  * SV-COMP memtrack compatibility mode=true
[2022-11-23 15:07:53,807 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-11-23 15:07:53,808 INFO  L138        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2022-11-23 15:07:53,808 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-11-23 15:07:53,808 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-11-23 15:07:53,808 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-11-23 15:07:53,809 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 15:07:53,809 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-11-23 15:07:53,809 INFO  L138        SettingsManager]:  * Abstract interpretation Mode=USE_PREDICATES
[2022-11-23 15:07:53,810 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-11-23 15:07:53,810 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-11-23 15:07:53,810 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-11-23 15:07:53,810 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-11-23 15:07:53,811 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_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/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_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW
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 -> Taipan
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f12e3955ea6fcca41dc2c68fc8e1d5a42d0369455d727c76f4dfb832d3060ba5
[2022-11-23 15:07:54,106 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-11-23 15:07:54,142 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-11-23 15:07:54,145 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-11-23 15:07:54,147 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-11-23 15:07:54,147 INFO  L275        PluginConnector]: CDTParser initialized
[2022-11-23 15:07:54,149 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/termination-15/count_up_alloca.i
[2022-11-23 15:07:57,462 INFO  L500              CDTParser]: Created temporary CDT project at NULL
[2022-11-23 15:07:57,816 INFO  L351              CDTParser]: Found 1 translation units.
[2022-11-23 15:07:57,817 INFO  L172              CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/sv-benchmarks/c/termination-15/count_up_alloca.i
[2022-11-23 15:07:57,828 INFO  L394              CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/data/343abe93e/a63a7ec4d7714f469eb534b197ea29a6/FLAG3550c622b
[2022-11-23 15:07:57,843 INFO  L402              CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/data/343abe93e/a63a7ec4d7714f469eb534b197ea29a6
[2022-11-23 15:07:57,846 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-11-23 15:07:57,848 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-11-23 15:07:57,849 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-11-23 15:07:57,850 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-11-23 15:07:57,854 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-11-23 15:07:57,855 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:57" (1/1) ...
[2022-11-23 15:07:57,857 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a83a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:57, skipping insertion in model container
[2022-11-23 15:07:57,857 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:07:57" (1/1) ...
[2022-11-23 15:07:57,867 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-11-23 15:07:57,936 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-11-23 15:07:58,249 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-23 15:07:58,263 INFO  L203         MainTranslator]: Completed pre-run
[2022-11-23 15:07:58,312 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-11-23 15:07:58,361 INFO  L208         MainTranslator]: Completed translation
[2022-11-23 15:07:58,362 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58 WrapperNode
[2022-11-23 15:07:58,362 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-11-23 15:07:58,364 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-11-23 15:07:58,364 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-11-23 15:07:58,364 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-11-23 15:07:58,373 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (1/1) ...
[2022-11-23 15:07:58,402 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (1/1) ...
[2022-11-23 15:07:58,437 INFO  L138                Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 63
[2022-11-23 15:07:58,438 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-11-23 15:07:58,439 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-11-23 15:07:58,439 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-11-23 15:07:58,439 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-11-23 15:07:58,450 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (1/1) ...
[2022-11-23 15:07:58,451 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (1/1) ...
[2022-11-23 15:07:58,465 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (1/1) ...
[2022-11-23 15:07:58,465 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (1/1) ...
[2022-11-23 15:07:58,470 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (1/1) ...
[2022-11-23 15:07:58,482 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (1/1) ...
[2022-11-23 15:07:58,484 INFO  L185        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (1/1) ...
[2022-11-23 15:07:58,495 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (1/1) ...
[2022-11-23 15:07:58,497 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-11-23 15:07:58,498 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-11-23 15:07:58,498 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-11-23 15:07:58,499 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-11-23 15:07:58,500 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (1/1) ...
[2022-11-23 15:07:58,512 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-11-23 15:07:58,542 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 15:07:58,567 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-11-23 15:07:58,604 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-11-23 15:07:58,627 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-11-23 15:07:58,627 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-11-23 15:07:58,628 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-11-23 15:07:58,630 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-11-23 15:07:58,630 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-11-23 15:07:58,630 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-11-23 15:07:58,724 INFO  L235             CfgBuilder]: Building ICFG
[2022-11-23 15:07:58,727 INFO  L261             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-11-23 15:07:58,946 INFO  L276             CfgBuilder]: Performing block encoding
[2022-11-23 15:07:59,036 INFO  L295             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-11-23 15:07:59,037 INFO  L300             CfgBuilder]: Removed 3 assume(true) statements.
[2022-11-23 15:07:59,040 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:59 BoogieIcfgContainer
[2022-11-23 15:07:59,040 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-11-23 15:07:59,043 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-11-23 15:07:59,043 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-11-23 15:07:59,048 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-11-23 15:07:59,048 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:07:57" (1/3) ...
[2022-11-23 15:07:59,049 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6945efce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:07:59, skipping insertion in model container
[2022-11-23 15:07:59,049 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:07:58" (2/3) ...
[2022-11-23 15:07:59,050 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6945efce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:07:59, skipping insertion in model container
[2022-11-23 15:07:59,050 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:59" (3/3) ...
[2022-11-23 15:07:59,052 INFO  L112   eAbstractionObserver]: Analyzing ICFG count_up_alloca.i
[2022-11-23 15:07:59,076 INFO  L203   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-11-23 15:07:59,077 INFO  L162   ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations.
[2022-11-23 15:07:59,144 INFO  L356      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-11-23 15:07:59,151 INFO  L357      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@612bf42, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2022-11-23 15:07:59,152 INFO  L358      AbstractCegarLoop]: Starting to check reachability of 9 error locations.
[2022-11-23 15:07:59,157 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 21 states, 11 states have (on average 2.272727272727273) internal successors, (25), 20 states have internal predecessors, (25), 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 15:07:59,164 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4
[2022-11-23 15:07:59,164 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-23 15:07:59,165 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1]
[2022-11-23 15:07:59,166 INFO  L420      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] ===
[2022-11-23 15:07:59,172 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 15:07:59,173 INFO  L85        PathProgramCache]: Analyzing trace with hash 111923, now seen corresponding path program 1 times
[2022-11-23 15:07:59,185 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 15:07:59,186 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128724168]
[2022-11-23 15:07:59,186 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:07:59,187 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 15:07:59,461 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:07:59,637 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 15:07:59,638 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 15:07:59,638 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128724168]
[2022-11-23 15:07:59,639 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128724168] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 15:07:59,640 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-23 15:07:59,640 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-23 15:07:59,642 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903619098]
[2022-11-23 15:07:59,658 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 15:07:59,663 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-23 15:07:59,665 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 15:07:59,707 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-23 15:07:59,708 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-23 15:07:59,711 INFO  L87              Difference]: Start difference. First operand  has 21 states, 11 states have (on average 2.272727272727273) internal successors, (25), 20 states have internal predecessors, (25), 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 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 15:07:59,769 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 15:07:59,770 INFO  L93              Difference]: Finished difference Result 21 states and 23 transitions.
[2022-11-23 15:07:59,771 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-23 15:07:59,773 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3
[2022-11-23 15:07:59,773 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 15:07:59,783 INFO  L225             Difference]: With dead ends: 21
[2022-11-23 15:07:59,783 INFO  L226             Difference]: Without dead ends: 20
[2022-11-23 15:07:59,785 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-23 15:07:59,789 INFO  L413           NwaCegarLoop]: 5 mSDtfsCounter, 22 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-23 15:07:59,790 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 5 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-23 15:07:59,812 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2022-11-23 15:07:59,823 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2022-11-23 15:07:59,825 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 20 states, 11 states have (on average 2.0) internal successors, (22), 19 states have internal predecessors, (22), 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 15:07:59,827 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions.
[2022-11-23 15:07:59,829 INFO  L78                 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 3
[2022-11-23 15:07:59,829 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-23 15:07:59,830 INFO  L495      AbstractCegarLoop]: Abstraction has 20 states and 22 transitions.
[2022-11-23 15:07:59,830 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 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 15:07:59,830 INFO  L276                IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions.
[2022-11-23 15:07:59,831 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-11-23 15:07:59,831 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-23 15:07:59,831 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-11-23 15:07:59,834 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-11-23 15:07:59,836 INFO  L420      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] ===
[2022-11-23 15:07:59,837 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 15:07:59,837 INFO  L85        PathProgramCache]: Analyzing trace with hash 3472061, now seen corresponding path program 1 times
[2022-11-23 15:07:59,837 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 15:07:59,838 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247817343]
[2022-11-23 15:07:59,838 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:07:59,838 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 15:07:59,872 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:07:59,944 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 15:07:59,945 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 15:07:59,945 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247817343]
[2022-11-23 15:07:59,945 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247817343] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 15:07:59,946 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-23 15:07:59,946 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1
[2022-11-23 15:07:59,946 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423000394]
[2022-11-23 15:07:59,946 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 15:07:59,948 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-11-23 15:07:59,948 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 15:07:59,949 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-11-23 15:07:59,949 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-23 15:07:59,949 INFO  L87              Difference]: Start difference. First operand 20 states and 22 transitions. Second operand  has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 15:07:59,989 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 15:07:59,989 INFO  L93              Difference]: Finished difference Result 16 states and 18 transitions.
[2022-11-23 15:07:59,990 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-11-23 15:07:59,990 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4
[2022-11-23 15:07:59,990 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 15:07:59,991 INFO  L225             Difference]: With dead ends: 16
[2022-11-23 15:07:59,991 INFO  L226             Difference]: Without dead ends: 16
[2022-11-23 15:07:59,991 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-11-23 15:07:59,993 INFO  L413           NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-23 15:07:59,994 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-23 15:07:59,995 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2022-11-23 15:07:59,996 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2022-11-23 15:07:59,997 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 15 states have internal predecessors, (18), 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 15:07:59,997 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions.
[2022-11-23 15:07:59,998 INFO  L78                 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 4
[2022-11-23 15:07:59,998 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-23 15:07:59,998 INFO  L495      AbstractCegarLoop]: Abstraction has 16 states and 18 transitions.
[2022-11-23 15:07:59,998 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 15:07:59,999 INFO  L276                IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions.
[2022-11-23 15:07:59,999 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2022-11-23 15:07:59,999 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-23 15:08:00,000 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1]
[2022-11-23 15:08:00,000 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-11-23 15:08:00,000 INFO  L420      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] ===
[2022-11-23 15:08:00,001 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 15:08:00,002 INFO  L85        PathProgramCache]: Analyzing trace with hash 3472062, now seen corresponding path program 1 times
[2022-11-23 15:08:00,002 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 15:08:00,002 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755251513]
[2022-11-23 15:08:00,003 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:08:00,003 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 15:08:00,039 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:08:00,376 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 15:08:00,376 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 15:08:00,377 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755251513]
[2022-11-23 15:08:00,377 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755251513] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 15:08:00,377 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-23 15:08:00,378 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-23 15:08:00,378 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874990880]
[2022-11-23 15:08:00,378 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 15:08:00,379 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-11-23 15:08:00,379 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 15:08:00,379 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-11-23 15:08:00,380 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2022-11-23 15:08:00,380 INFO  L87              Difference]: Start difference. First operand 16 states and 18 transitions. Second operand  has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 15:08:00,530 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 15:08:00,530 INFO  L93              Difference]: Finished difference Result 34 states and 38 transitions.
[2022-11-23 15:08:00,531 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-11-23 15:08:00,531 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 4
[2022-11-23 15:08:00,532 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 15:08:00,534 INFO  L225             Difference]: With dead ends: 34
[2022-11-23 15:08:00,535 INFO  L226             Difference]: Without dead ends: 34
[2022-11-23 15:08:00,536 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2022-11-23 15:08:00,538 INFO  L413           NwaCegarLoop]: 5 mSDtfsCounter, 43 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-23 15:08:00,541 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 13 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-23 15:08:00,542 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2022-11-23 15:08:00,545 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 18.
[2022-11-23 15:08:00,545 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 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 15:08:00,546 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions.
[2022-11-23 15:08:00,546 INFO  L78                 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 4
[2022-11-23 15:08:00,547 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-23 15:08:00,547 INFO  L495      AbstractCegarLoop]: Abstraction has 18 states and 21 transitions.
[2022-11-23 15:08:00,547 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 15:08:00,547 INFO  L276                IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions.
[2022-11-23 15:08:00,548 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 6
[2022-11-23 15:08:00,548 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-23 15:08:00,548 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1]
[2022-11-23 15:08:00,548 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-11-23 15:08:00,549 INFO  L420      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] ===
[2022-11-23 15:08:00,550 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 15:08:00,550 INFO  L85        PathProgramCache]: Analyzing trace with hash 107633811, now seen corresponding path program 1 times
[2022-11-23 15:08:00,550 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 15:08:00,551 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588655205]
[2022-11-23 15:08:00,551 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:08:00,551 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 15:08:00,565 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:08:00,634 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 15:08:00,634 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 15:08:00,635 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588655205]
[2022-11-23 15:08:00,635 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588655205] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 15:08:00,635 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-23 15:08:00,635 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-11-23 15:08:00,636 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929219306]
[2022-11-23 15:08:00,636 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 15:08:00,636 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-23 15:08:00,637 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 15:08:00,637 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-23 15:08:00,638 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-11-23 15:08:00,638 INFO  L87              Difference]: Start difference. First operand 18 states and 21 transitions. Second operand  has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 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)
[2022-11-23 15:08:00,664 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 15:08:00,664 INFO  L93              Difference]: Finished difference Result 18 states and 20 transitions.
[2022-11-23 15:08:00,665 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-11-23 15:08:00,665 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 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
[2022-11-23 15:08:00,665 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 15:08:00,666 INFO  L225             Difference]: With dead ends: 18
[2022-11-23 15:08:00,666 INFO  L226             Difference]: Without dead ends: 18
[2022-11-23 15:08:00,666 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2022-11-23 15:08:00,668 INFO  L413           NwaCegarLoop]: 10 mSDtfsCounter, 20 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-23 15:08:00,669 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 18 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-23 15:08:00,670 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2022-11-23 15:08:00,671 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2022-11-23 15:08:00,672 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 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 15:08:00,673 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions.
[2022-11-23 15:08:00,673 INFO  L78                 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 5
[2022-11-23 15:08:00,673 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-23 15:08:00,674 INFO  L495      AbstractCegarLoop]: Abstraction has 18 states and 20 transitions.
[2022-11-23 15:08:00,674 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 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)
[2022-11-23 15:08:00,674 INFO  L276                IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions.
[2022-11-23 15:08:00,675 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-11-23 15:08:00,675 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-23 15:08:00,675 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1]
[2022-11-23 15:08:00,675 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-11-23 15:08:00,676 INFO  L420      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] ===
[2022-11-23 15:08:00,677 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 15:08:00,677 INFO  L85        PathProgramCache]: Analyzing trace with hash -958266734, now seen corresponding path program 1 times
[2022-11-23 15:08:00,677 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 15:08:00,677 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664553687]
[2022-11-23 15:08:00,678 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:08:00,678 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 15:08:00,698 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:08:01,073 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 15:08:01,073 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 15:08:01,073 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664553687]
[2022-11-23 15:08:01,074 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664553687] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 15:08:01,074 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873976182]
[2022-11-23 15:08:01,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:08:01,075 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 15:08:01,076 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 15:08:01,081 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 15:08:01,089 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2022-11-23 15:08:01,193 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:08:01,196 INFO  L263         TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 18 conjunts are in the unsatisfiable core
[2022-11-23 15:08:01,206 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 15:08:01,356 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 10 treesize of output 9
[2022-11-23 15:08:01,726 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 15:08:01,727 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 15:08:01,935 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 15:08:01,936 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [873976182] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 15:08:01,936 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [786849535]
[2022-11-23 15:08:01,963 INFO  L159        IcfgInterpreter]: Started Sifa with 5 locations of interest
[2022-11-23 15:08:01,963 INFO  L166        IcfgInterpreter]: Building call graph
[2022-11-23 15:08:01,968 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2022-11-23 15:08:01,976 INFO  L176        IcfgInterpreter]: Starting interpretation
[2022-11-23 15:08:01,976 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2022-11-23 15:08:02,058 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9
[2022-11-23 15:08:02,179 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2022-11-23 15:08:02,348 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2022-11-23 15:08:02,424 INFO  L180        IcfgInterpreter]: Interpretation finished
[2022-11-23 15:08:03,114 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '246#(and (<= |ULTIMATE.start_main_~length~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_#t~malloc207#1.base|) (<= |ULTIMATE.start_main_~arr~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~val~0#1| 2147483648)) (= |ULTIMATE.start_main_#t~malloc207#1.offset| 0) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~length~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (not (< |ULTIMATE.start_main_~limit~0#1| |ULTIMATE.start_main_~val~0#1|)) (not (<= (+ |ULTIMATE.start_main_~arr~0#1.offset| (* |ULTIMATE.start_main_~i~0#1| 4) 4) (select |#length| |ULTIMATE.start_main_~arr~0#1.base|))) (<= 0 |ULTIMATE.start_main_~arr~0#1.base|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~limit~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~arr~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location
[2022-11-23 15:08:03,115 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2022-11-23 15:08:03,115 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-23 15:08:03,115 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 12
[2022-11-23 15:08:03,115 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685025354]
[2022-11-23 15:08:03,115 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-23 15:08:03,116 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2022-11-23 15:08:03,116 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 15:08:03,116 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2022-11-23 15:08:03,117 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306
[2022-11-23 15:08:03,117 INFO  L87              Difference]: Start difference. First operand 18 states and 20 transitions. Second operand  has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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 15:08:03,447 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 15:08:03,447 INFO  L93              Difference]: Finished difference Result 30 states and 34 transitions.
[2022-11-23 15:08:03,448 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2022-11-23 15:08:03,448 INFO  L78                 Accepts]: Start accepts. Automaton has  has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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 6
[2022-11-23 15:08:03,448 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 15:08:03,449 INFO  L225             Difference]: With dead ends: 30
[2022-11-23 15:08:03,449 INFO  L226             Difference]: Without dead ends: 30
[2022-11-23 15:08:03,450 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420
[2022-11-23 15:08:03,451 INFO  L413           NwaCegarLoop]: 4 mSDtfsCounter, 76 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-23 15:08:03,451 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 20 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-23 15:08:03,452 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2022-11-23 15:08:03,458 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 16.
[2022-11-23 15:08:03,459 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 16 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 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 15:08:03,460 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions.
[2022-11-23 15:08:03,461 INFO  L78                 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 6
[2022-11-23 15:08:03,461 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-23 15:08:03,462 INFO  L495      AbstractCegarLoop]: Abstraction has 16 states and 18 transitions.
[2022-11-23 15:08:03,462 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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 15:08:03,462 INFO  L276                IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions.
[2022-11-23 15:08:03,463 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-11-23 15:08:03,463 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-23 15:08:03,463 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-11-23 15:08:03,480 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2022-11-23 15:08:03,670 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 15:08:03,671 INFO  L420      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] ===
[2022-11-23 15:08:03,671 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 15:08:03,671 INFO  L85        PathProgramCache]: Analyzing trace with hash 358502207, now seen corresponding path program 1 times
[2022-11-23 15:08:03,672 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 15:08:03,672 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019575962]
[2022-11-23 15:08:03,672 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:08:03,672 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 15:08:03,685 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:08:03,744 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 15:08:03,744 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 15:08:03,745 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019575962]
[2022-11-23 15:08:03,745 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019575962] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 15:08:03,745 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523490848]
[2022-11-23 15:08:03,745 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:08:03,745 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 15:08:03,746 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 15:08:03,747 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 15:08:03,753 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-11-23 15:08:03,804 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:08:03,805 INFO  L263         TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core
[2022-11-23 15:08:03,806 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 15:08:03,838 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 15:08:03,838 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 15:08:03,871 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 15:08:03,871 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523490848] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 15:08:03,871 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1063309138]
[2022-11-23 15:08:03,874 INFO  L159        IcfgInterpreter]: Started Sifa with 7 locations of interest
[2022-11-23 15:08:03,874 INFO  L166        IcfgInterpreter]: Building call graph
[2022-11-23 15:08:03,874 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2022-11-23 15:08:03,875 INFO  L176        IcfgInterpreter]: Starting interpretation
[2022-11-23 15:08:03,875 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2022-11-23 15:08:03,901 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9
[2022-11-23 15:08:03,967 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-11-23 15:08:04,050 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2022-11-23 15:08:04,077 WARN  L207             Elim1Store]: Array PQE input equivalent to false
[2022-11-23 15:08:04,106 INFO  L180        IcfgInterpreter]: Interpretation finished
[2022-11-23 15:08:04,511 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSifa [1063309138] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 15:08:04,511 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences.
[2022-11-23 15:08:04,511 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5] total 13
[2022-11-23 15:08:04,512 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474213274]
[2022-11-23 15:08:04,512 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 15:08:04,512 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2022-11-23 15:08:04,512 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 15:08:04,513 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2022-11-23 15:08:04,513 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156
[2022-11-23 15:08:04,513 INFO  L87              Difference]: Start difference. First operand 16 states and 18 transitions. Second operand  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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 15:08:04,959 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 15:08:04,959 INFO  L93              Difference]: Finished difference Result 22 states and 25 transitions.
[2022-11-23 15:08:04,961 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-11-23 15:08:04,962 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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
[2022-11-23 15:08:04,962 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 15:08:04,962 INFO  L225             Difference]: With dead ends: 22
[2022-11-23 15:08:04,962 INFO  L226             Difference]: Without dead ends: 22
[2022-11-23 15:08:04,963 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240
[2022-11-23 15:08:04,964 INFO  L413           NwaCegarLoop]: 1 mSDtfsCounter, 40 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-23 15:08:04,964 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 4 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-23 15:08:04,965 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2022-11-23 15:08:04,966 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21.
[2022-11-23 15:08:04,966 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 17 states have (on average 1.411764705882353) internal successors, (24), 20 states have internal predecessors, (24), 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 15:08:04,967 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions.
[2022-11-23 15:08:04,967 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 7
[2022-11-23 15:08:04,967 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-23 15:08:04,967 INFO  L495      AbstractCegarLoop]: Abstraction has 21 states and 24 transitions.
[2022-11-23 15:08:04,967 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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 15:08:04,968 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions.
[2022-11-23 15:08:04,968 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-11-23 15:08:04,968 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-23 15:08:04,968 INFO  L195           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 15:08:04,975 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2022-11-23 15:08:05,168 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 15:08:05,169 INFO  L420      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] ===
[2022-11-23 15:08:05,169 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 15:08:05,169 INFO  L85        PathProgramCache]: Analyzing trace with hash 1243926610, now seen corresponding path program 1 times
[2022-11-23 15:08:05,170 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 15:08:05,170 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520548909]
[2022-11-23 15:08:05,170 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:08:05,170 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 15:08:05,183 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:08:05,274 INFO  L134       CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-23 15:08:05,275 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 15:08:05,275 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520548909]
[2022-11-23 15:08:05,275 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520548909] provided 1 perfect and 0 imperfect interpolant sequences
[2022-11-23 15:08:05,275 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-11-23 15:08:05,275 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-11-23 15:08:05,275 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489617800]
[2022-11-23 15:08:05,276 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-11-23 15:08:05,276 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2022-11-23 15:08:05,276 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 15:08:05,277 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2022-11-23 15:08:05,277 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-23 15:08:05,277 INFO  L87              Difference]: Start difference. First operand 21 states and 24 transitions. Second operand  has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 15:08:05,296 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 15:08:05,296 INFO  L93              Difference]: Finished difference Result 20 states and 23 transitions.
[2022-11-23 15:08:05,297 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2022-11-23 15:08:05,297 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 11
[2022-11-23 15:08:05,297 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 15:08:05,297 INFO  L225             Difference]: With dead ends: 20
[2022-11-23 15:08:05,298 INFO  L226             Difference]: Without dead ends: 19
[2022-11-23 15:08:05,298 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2022-11-23 15:08:05,299 INFO  L413           NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-11-23 15:08:05,299 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 16 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-11-23 15:08:05,300 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2022-11-23 15:08:05,301 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2022-11-23 15:08:05,302 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 19 states, 16 states have (on average 1.375) internal successors, (22), 18 states have internal predecessors, (22), 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 15:08:05,302 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions.
[2022-11-23 15:08:05,302 INFO  L78                 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 11
[2022-11-23 15:08:05,302 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-23 15:08:05,302 INFO  L495      AbstractCegarLoop]: Abstraction has 19 states and 22 transitions.
[2022-11-23 15:08:05,303 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 15:08:05,303 INFO  L276                IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions.
[2022-11-23 15:08:05,303 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2022-11-23 15:08:05,303 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-23 15:08:05,303 INFO  L195           NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 15:08:05,304 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-11-23 15:08:05,304 INFO  L420      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] ===
[2022-11-23 15:08:05,304 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 15:08:05,304 INFO  L85        PathProgramCache]: Analyzing trace with hash 1243925285, now seen corresponding path program 1 times
[2022-11-23 15:08:05,305 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 15:08:05,305 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275727048]
[2022-11-23 15:08:05,305 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:08:05,305 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 15:08:05,315 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:08:05,384 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 15:08:05,385 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 15:08:05,385 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275727048]
[2022-11-23 15:08:05,385 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275727048] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 15:08:05,385 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784340794]
[2022-11-23 15:08:05,385 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:08:05,385 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 15:08:05,385 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 15:08:05,387 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 15:08:05,412 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-11-23 15:08:05,445 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:08:05,446 INFO  L263         TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 6 conjunts are in the unsatisfiable core
[2022-11-23 15:08:05,447 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 15:08:05,508 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 15:08:05,508 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 15:08:05,559 INFO  L134       CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 15:08:05,560 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784340794] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 15:08:05,560 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [485166527]
[2022-11-23 15:08:05,562 INFO  L159        IcfgInterpreter]: Started Sifa with 9 locations of interest
[2022-11-23 15:08:05,563 INFO  L166        IcfgInterpreter]: Building call graph
[2022-11-23 15:08:05,563 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2022-11-23 15:08:05,563 INFO  L176        IcfgInterpreter]: Starting interpretation
[2022-11-23 15:08:05,563 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2022-11-23 15:08:05,587 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9
[2022-11-23 15:08:05,652 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2022-11-23 15:08:05,753 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2022-11-23 15:08:05,924 INFO  L180        IcfgInterpreter]: Interpretation finished
[2022-11-23 15:08:06,662 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '513#(and (<= |ULTIMATE.start_main_~length~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~limit~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_#t~malloc207#1.base|) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~arr~0#1.offset| 0) (= |ULTIMATE.start_main_#t~malloc207#1.offset| 0) (not (<= (+ |ULTIMATE.start_main_~arr~0#1.offset| 4 (* |ULTIMATE.start_main_~j~0#1| 4)) (select |#length| |ULTIMATE.start_main_~arr~0#1.base|))) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 1 |ULTIMATE.start_main_~length~0#1|) (<= 0 |ULTIMATE.start_main_~arr~0#1.base|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~limit~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~arr~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location
[2022-11-23 15:08:06,663 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2022-11-23 15:08:06,663 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-23 15:08:06,663 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10
[2022-11-23 15:08:06,663 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016299148]
[2022-11-23 15:08:06,663 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-23 15:08:06,663 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2022-11-23 15:08:06,664 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 15:08:06,664 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2022-11-23 15:08:06,664 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272
[2022-11-23 15:08:06,664 INFO  L87              Difference]: Start difference. First operand 19 states and 22 transitions. Second operand  has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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 15:08:06,763 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 15:08:06,764 INFO  L93              Difference]: Finished difference Result 29 states and 33 transitions.
[2022-11-23 15:08:06,764 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2022-11-23 15:08:06,764 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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 11
[2022-11-23 15:08:06,765 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 15:08:06,765 INFO  L225             Difference]: With dead ends: 29
[2022-11-23 15:08:06,765 INFO  L226             Difference]: Without dead ends: 22
[2022-11-23 15:08:06,765 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342
[2022-11-23 15:08:06,766 INFO  L413           NwaCegarLoop]: 6 mSDtfsCounter, 13 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-23 15:08:06,766 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 31 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-23 15:08:06,767 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2022-11-23 15:08:06,768 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21.
[2022-11-23 15:08:06,768 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 21 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 20 states have internal predecessors, (24), 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 15:08:06,769 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions.
[2022-11-23 15:08:06,769 INFO  L78                 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11
[2022-11-23 15:08:06,770 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-23 15:08:06,770 INFO  L495      AbstractCegarLoop]: Abstraction has 21 states and 24 transitions.
[2022-11-23 15:08:06,770 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 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 15:08:06,770 INFO  L276                IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions.
[2022-11-23 15:08:06,771 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2022-11-23 15:08:06,771 INFO  L187           NwaCegarLoop]: Found error trace
[2022-11-23 15:08:06,771 INFO  L195           NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 15:08:06,787 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2022-11-23 15:08:06,972 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 15:08:06,972 INFO  L420      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 6 more)] ===
[2022-11-23 15:08:06,972 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-11-23 15:08:06,972 INFO  L85        PathProgramCache]: Analyzing trace with hash 1166740689, now seen corresponding path program 2 times
[2022-11-23 15:08:06,973 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-11-23 15:08:06,973 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911205727]
[2022-11-23 15:08:06,973 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-11-23 15:08:06,973 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-11-23 15:08:06,989 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-11-23 15:08:07,203 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-11-23 15:08:07,203 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-11-23 15:08:07,203 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911205727]
[2022-11-23 15:08:07,203 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911205727] provided 0 perfect and 1 imperfect interpolant sequences
[2022-11-23 15:08:07,203 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489258101]
[2022-11-23 15:08:07,203 INFO  L93    rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-11-23 15:08:07,204 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 15:08:07,204 INFO  L189       MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3
[2022-11-23 15:08:07,205 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2022-11-23 15:08:07,235 INFO  L327       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-11-23 15:08:07,275 INFO  L228   tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2022-11-23 15:08:07,275 INFO  L229   tOrderPrioritization]: Conjunction of SSA is unsat
[2022-11-23 15:08:07,276 INFO  L263         TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core
[2022-11-23 15:08:07,277 INFO  L286         TraceCheckSpWp]: Computing forward predicates...
[2022-11-23 15:08:07,406 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-23 15:08:07,406 INFO  L328         TraceCheckSpWp]: Computing backward predicates...
[2022-11-23 15:08:07,597 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2022-11-23 15:08:07,615 INFO  L134       CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2022-11-23 15:08:07,615 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleZ3 [489258101] provided 0 perfect and 2 imperfect interpolant sequences
[2022-11-23 15:08:07,615 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1044700083]
[2022-11-23 15:08:07,617 INFO  L159        IcfgInterpreter]: Started Sifa with 9 locations of interest
[2022-11-23 15:08:07,617 INFO  L166        IcfgInterpreter]: Building call graph
[2022-11-23 15:08:07,618 INFO  L171        IcfgInterpreter]: Initial procedures are [ULTIMATE.start]
[2022-11-23 15:08:07,618 INFO  L176        IcfgInterpreter]: Starting interpretation
[2022-11-23 15:08:07,618 INFO  L197        IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs
[2022-11-23 15:08:07,641 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9
[2022-11-23 15:08:07,699 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2022-11-23 15:08:07,760 INFO  L350             Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2022-11-23 15:08:07,941 INFO  L180        IcfgInterpreter]: Interpretation finished
[2022-11-23 15:08:08,828 INFO  L133             SifaRunner]: Sifa could not show that error location is unreachable, found '664#(and (<= |ULTIMATE.start_main_~length~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~limit~0#1| 2147483648)) (<= 0 |ULTIMATE.start_main_#t~malloc207#1.base|) (<= 1 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~arr~0#1.offset| 0) (= |ULTIMATE.start_main_#t~malloc207#1.offset| 0) (not (<= (+ |ULTIMATE.start_main_~arr~0#1.offset| 4 (* |ULTIMATE.start_main_~j~0#1| 4)) (select |#length| |ULTIMATE.start_main_~arr~0#1.base|))) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 1 |ULTIMATE.start_main_~length~0#1|) (<= 0 |ULTIMATE.start_main_~arr~0#1.base|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~limit~0#1| 2147483647) (<= 0 |ULTIMATE.start_main_~arr~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location
[2022-11-23 15:08:08,828 WARN  L310   FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED
[2022-11-23 15:08:08,828 INFO  L184   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-11-23 15:08:08,828 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 16
[2022-11-23 15:08:08,829 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807559402]
[2022-11-23 15:08:08,829 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-11-23 15:08:08,829 INFO  L571      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2022-11-23 15:08:08,829 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-11-23 15:08:08,830 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2022-11-23 15:08:08,830 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600
[2022-11-23 15:08:08,830 INFO  L87              Difference]: Start difference. First operand 21 states and 24 transitions. Second operand  has 18 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 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 15:08:09,093 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-11-23 15:08:09,093 INFO  L93              Difference]: Finished difference Result 21 states and 24 transitions.
[2022-11-23 15:08:09,093 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. 
[2022-11-23 15:08:09,094 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 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 13
[2022-11-23 15:08:09,094 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-11-23 15:08:09,094 INFO  L225             Difference]: With dead ends: 21
[2022-11-23 15:08:09,094 INFO  L226             Difference]: Without dead ends: 0
[2022-11-23 15:08:09,095 INFO  L412           NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=195, Invalid=675, Unknown=0, NotChecked=0, Total=870
[2022-11-23 15:08:09,095 INFO  L413           NwaCegarLoop]: 4 mSDtfsCounter, 105 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-11-23 15:08:09,096 INFO  L414           NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 14 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-11-23 15:08:09,096 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2022-11-23 15:08:09,096 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2022-11-23 15:08:09,097 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-11-23 15:08:09,097 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2022-11-23 15:08:09,097 INFO  L78                 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13
[2022-11-23 15:08:09,097 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-11-23 15:08:09,097 INFO  L495      AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2022-11-23 15:08:09,097 INFO  L496      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 17 states have (on average 2.176470588235294) internal successors, (37), 17 states have internal predecessors, (37), 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 15:08:09,097 INFO  L276                IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2022-11-23 15:08:09,098 INFO  L282                IsEmpty]: Finished isEmpty. No accepting run.
[2022-11-23 15:08:09,100 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 9 remaining)
[2022-11-23 15:08:09,101 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 9 remaining)
[2022-11-23 15:08:09,104 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 9 remaining)
[2022-11-23 15:08:09,104 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 9 remaining)
[2022-11-23 15:08:09,104 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 9 remaining)
[2022-11-23 15:08:09,104 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 9 remaining)
[2022-11-23 15:08:09,104 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 9 remaining)
[2022-11-23 15:08:09,105 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 9 remaining)
[2022-11-23 15:08:09,105 INFO  L805   garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (0 of 9 remaining)
[2022-11-23 15:08:09,111 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2022-11-23 15:08:09,310 WARN  L477      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-11-23 15:08:09,314 INFO  L444         BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1]
[2022-11-23 15:08:09,317 INFO  L178   ceAbstractionStarter]: Computing trace abstraction results
[2022-11-23 15:08:09,321 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:08:09 BoogieIcfgContainer
[2022-11-23 15:08:09,321 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-11-23 15:08:09,322 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-11-23 15:08:09,322 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-11-23 15:08:09,322 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-11-23 15:08:09,323 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:07:59" (3/4) ...
[2022-11-23 15:08:09,326 INFO  L137         WitnessPrinter]: Generating witness for correct program
[2022-11-23 15:08:09,339 INFO  L915   BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges
[2022-11-23 15:08:09,339 INFO  L915   BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges
[2022-11-23 15:08:09,340 INFO  L915   BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges
[2022-11-23 15:08:09,340 INFO  L915   BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2022-11-23 15:08:09,383 INFO  L141         WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/witness.graphml
[2022-11-23 15:08:09,383 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-11-23 15:08:09,384 INFO  L158              Benchmark]: Toolchain (without parser) took 11535.83ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 146.5MB in the beginning and 121.4MB in the end (delta: 25.1MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB.
[2022-11-23 15:08:09,384 INFO  L158              Benchmark]: CDTParser took 1.00ms. Allocated memory is still 130.0MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-11-23 15:08:09,385 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 513.35ms. Allocated memory is still 176.2MB. Free memory was 146.3MB in the beginning and 130.5MB in the end (delta: 15.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB.
[2022-11-23 15:08:09,385 INFO  L158              Benchmark]: Boogie Procedure Inliner took 73.89ms. Allocated memory is still 176.2MB. Free memory was 130.5MB in the beginning and 128.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-23 15:08:09,386 INFO  L158              Benchmark]: Boogie Preprocessor took 58.66ms. Allocated memory is still 176.2MB. Free memory was 128.4MB in the beginning and 127.7MB in the end (delta: 730.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-23 15:08:09,386 INFO  L158              Benchmark]: RCFGBuilder took 542.42ms. Allocated memory is still 176.2MB. Free memory was 127.0MB in the beginning and 112.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
[2022-11-23 15:08:09,387 INFO  L158              Benchmark]: TraceAbstraction took 10278.37ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 111.7MB in the beginning and 124.3MB in the end (delta: -12.6MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB.
[2022-11-23 15:08:09,387 INFO  L158              Benchmark]: Witness Printer took 60.89ms. Allocated memory is still 255.9MB. Free memory was 124.3MB in the beginning and 121.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-11-23 15:08:09,394 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 1.00ms. Allocated memory is still 130.0MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 513.35ms. Allocated memory is still 176.2MB. Free memory was 146.3MB in the beginning and 130.5MB in the end (delta: 15.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 73.89ms. Allocated memory is still 176.2MB. Free memory was 130.5MB in the beginning and 128.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 58.66ms. Allocated memory is still 176.2MB. Free memory was 128.4MB in the beginning and 127.7MB in the end (delta: 730.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 542.42ms. Allocated memory is still 176.2MB. Free memory was 127.0MB in the beginning and 112.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB.
 * TraceAbstraction took 10278.37ms. Allocated memory was 176.2MB in the beginning and 255.9MB in the end (delta: 79.7MB). Free memory was 111.7MB in the beginning and 124.3MB in the end (delta: -12.6MB). Peak memory consumption was 67.8MB. Max. memory is 16.1GB.
 * Witness Printer took 60.89ms. Allocated memory is still 255.9MB. Free memory was 124.3MB in the beginning and 121.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
  - StatisticsResult: ErrorAutomatonStatistics
    NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: -1]: pointer dereference always succeeds
    For all program executions holds that pointer dereference always succeeds at this location
  - PositiveResult [Line: 364]: all allocated memory was freed
    For all program executions holds that all allocated memory was freed at this location
  - StatisticsResult: Ultimate Automizer benchmark data
    CFG has 1 procedures, 21 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 338 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 338 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 383 IncrementalHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 48 mSDtfsCounter, 383 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 53 SyntacticMatches, 9 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 32 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 101 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 1283 SizeOfPredicates, 18 NumberOfNonLiveVariables, 237 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 17 InterpolantComputations, 5 PerfectInterpolantSequences, 14/38 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: OVERALL_TIME: 0.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 9, TOOLS_QUANTIFIERELIM_TIME: 0.2s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 20, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.1s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 39, DAG_COMPRESSION_RETAINED_NODES: 21, ReuseStatistics: No data available
  - AllSpecificationsHoldResult: All specifications hold
    9 specifications checked. All of them hold
RESULT: Ultimate proved your program to be correct!
[2022-11-23 15:08:09,422 INFO  L540       MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e99e50c7-f093-42fd-bd97-dae74f31b1f2/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---

Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE