./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version c3fed411
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6591ce47dfe4224cb6f7a03e7ab6e8c9fb535aeaf619e89bc0784a15f3516b25
--- Real Ultimate output ---
This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41
[2021-12-17 16:01:41,691 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-12-17 16:01:41,692 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-12-17 16:01:41,738 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-12-17 16:01:41,740 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-12-17 16:01:41,741 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-12-17 16:01:41,742 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-12-17 16:01:41,743 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-12-17 16:01:41,744 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-12-17 16:01:41,745 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-12-17 16:01:41,746 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-12-17 16:01:41,746 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-12-17 16:01:41,747 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-12-17 16:01:41,747 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-12-17 16:01:41,748 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-12-17 16:01:41,749 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-12-17 16:01:41,750 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-12-17 16:01:41,757 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-12-17 16:01:41,758 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-12-17 16:01:41,761 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-12-17 16:01:41,772 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-12-17 16:01:41,773 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-12-17 16:01:41,774 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-12-17 16:01:41,775 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-12-17 16:01:41,776 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-12-17 16:01:41,777 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-12-17 16:01:41,777 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-12-17 16:01:41,777 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-12-17 16:01:41,778 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-12-17 16:01:41,778 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-12-17 16:01:41,779 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-12-17 16:01:41,779 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-12-17 16:01:41,780 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-12-17 16:01:41,780 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-12-17 16:01:41,781 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-12-17 16:01:41,781 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-12-17 16:01:41,781 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-12-17 16:01:41,782 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-12-17 16:01:41,782 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-12-17 16:01:41,783 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-12-17 16:01:41,783 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-12-17 16:01:41,785 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-12-17 16:01:41,800 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-12-17 16:01:41,801 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-12-17 16:01:41,801 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-12-17 16:01:41,801 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-12-17 16:01:41,802 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-12-17 16:01:41,802 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-12-17 16:01:41,802 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-12-17 16:01:41,802 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-12-17 16:01:41,802 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-12-17 16:01:41,803 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-12-17 16:01:41,803 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-12-17 16:01:41,803 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-12-17 16:01:41,803 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-12-17 16:01:41,803 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-12-17 16:01:41,803 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-12-17 16:01:41,803 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-12-17 16:01:41,803 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-12-17 16:01:41,804 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-12-17 16:01:41,804 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-12-17 16:01:41,804 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-12-17 16:01:41,804 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-12-17 16:01:41,804 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-12-17 16:01:41,805 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-12-17 16:01:41,805 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-12-17 16:01:41,805 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-17 16:01:41,805 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-12-17 16:01:41,805 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-12-17 16:01:41,805 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-12-17 16:01:41,806 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-12-17 16:01:41,806 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-12-17 16:01:41,806 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-12-17 16:01:41,806 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-12-17 16:01:41,806 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-12-17 16:01:41,806 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-12-17 16:01:41,806 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6591ce47dfe4224cb6f7a03e7ab6e8c9fb535aeaf619e89bc0784a15f3516b25
[2021-12-17 16:01:42,015 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-12-17 16:01:42,042 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-12-17 16:01:42,044 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-12-17 16:01:42,044 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-12-17 16:01:42,046 INFO  L275        PluginConnector]: CDTParser initialized
[2021-12-17 16:01:42,047 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c
[2021-12-17 16:01:42,100 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0feb7e0cc/bd193c6dcd2940aea87192e478310e18/FLAGd4a3bed56
[2021-12-17 16:01:42,602 INFO  L306              CDTParser]: Found 1 translation units.
[2021-12-17 16:01:42,603 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c
[2021-12-17 16:01:42,622 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0feb7e0cc/bd193c6dcd2940aea87192e478310e18/FLAGd4a3bed56
[2021-12-17 16:01:43,078 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0feb7e0cc/bd193c6dcd2940aea87192e478310e18
[2021-12-17 16:01:43,080 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-12-17 16:01:43,082 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-12-17 16:01:43,085 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-12-17 16:01:43,086 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-12-17 16:01:43,088 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-12-17 16:01:43,089 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:43,090 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4965b69a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43, skipping insertion in model container
[2021-12-17 16:01:43,090 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:43,095 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-12-17 16:01:43,142 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-12-17 16:01:43,311 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c[1800,1813]
[2021-12-17 16:01:43,576 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-17 16:01:43,584 INFO  L203         MainTranslator]: Completed pre-run
[2021-12-17 16:01:43,593 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M4-1.c[1800,1813]
[2021-12-17 16:01:43,808 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-17 16:01:43,827 INFO  L208         MainTranslator]: Completed translation
[2021-12-17 16:01:43,827 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43 WrapperNode
[2021-12-17 16:01:43,827 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-12-17 16:01:43,828 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-12-17 16:01:43,828 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-12-17 16:01:43,828 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-12-17 16:01:43,833 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:43,889 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:44,029 INFO  L137                Inliner]: procedures = 60, calls = 3154, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5973
[2021-12-17 16:01:44,029 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-12-17 16:01:44,030 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-12-17 16:01:44,030 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-12-17 16:01:44,030 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-12-17 16:01:44,036 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:44,037 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:44,063 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:44,064 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:44,198 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:44,218 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:44,240 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:44,260 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-12-17 16:01:44,261 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-12-17 16:01:44,262 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-12-17 16:01:44,262 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-12-17 16:01:44,263 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43" (1/1) ...
[2021-12-17 16:01:44,267 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-17 16:01:44,275 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-17 16:01:44,289 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-12-17 16:01:44,303 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-12-17 16:01:44,319 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-12-17 16:01:44,319 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward
[2021-12-17 16:01:44,319 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward
[2021-12-17 16:01:44,319 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t2
[2021-12-17 16:01:44,319 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2
[2021-12-17 16:01:44,320 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode
[2021-12-17 16:01:44,320 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode
[2021-12-17 16:01:44,320 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-12-17 16:01:44,320 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t0
[2021-12-17 16:01:44,320 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0
[2021-12-17 16:01:44,320 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t1
[2021-12-17 16:01:44,320 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1
[2021-12-17 16:01:44,320 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag
[2021-12-17 16:01:44,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag
[2021-12-17 16:01:44,321 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2021-12-17 16:01:44,321 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_count
[2021-12-17 16:01:44,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count
[2021-12-17 16:01:44,321 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor
[2021-12-17 16:01:44,321 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor
[2021-12-17 16:01:44,321 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn
[2021-12-17 16:01:44,322 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn
[2021-12-17 16:01:44,322 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1
[2021-12-17 16:01:44,322 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1
[2021-12-17 16:01:44,322 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2
[2021-12-17 16:01:44,322 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2
[2021-12-17 16:01:44,322 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3
[2021-12-17 16:01:44,323 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3
[2021-12-17 16:01:44,323 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-12-17 16:01:44,323 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod
[2021-12-17 16:01:44,323 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod
[2021-12-17 16:01:44,323 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-12-17 16:01:44,323 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2021-12-17 16:01:44,323 INFO  L138     BoogieDeclarations]: Found implementation of procedure assert
[2021-12-17 16:01:44,323 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed
[2021-12-17 16:01:44,324 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed
[2021-12-17 16:01:44,324 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward
[2021-12-17 16:01:44,324 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward
[2021-12-17 16:01:44,324 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag
[2021-12-17 16:01:44,324 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag
[2021-12-17 16:01:44,324 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2021-12-17 16:01:44,324 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2021-12-17 16:01:44,325 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-12-17 16:01:44,325 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-12-17 16:01:44,325 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-12-17 16:01:44,325 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms
[2021-12-17 16:01:44,325 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms
[2021-12-17 16:01:44,325 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_get_count
[2021-12-17 16:01:44,325 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count
[2021-12-17 16:01:44,325 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode
[2021-12-17 16:01:44,326 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode
[2021-12-17 16:01:44,326 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn
[2021-12-17 16:01:44,326 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn
[2021-12-17 16:01:44,750 INFO  L236             CfgBuilder]: Building ICFG
[2021-12-17 16:01:44,752 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-12-17 16:01:56,671 INFO  L277             CfgBuilder]: Performing block encoding
[2021-12-17 16:01:56,688 INFO  L296             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-12-17 16:01:56,688 INFO  L301             CfgBuilder]: Removed 1 assume(true) statements.
[2021-12-17 16:01:56,691 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:01:56 BoogieIcfgContainer
[2021-12-17 16:01:56,691 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-12-17 16:01:56,693 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-12-17 16:01:56,693 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-12-17 16:01:56,695 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-12-17 16:01:56,695 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:01:43" (1/3) ...
[2021-12-17 16:01:56,696 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d880f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:01:56, skipping insertion in model container
[2021-12-17 16:01:56,696 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:43" (2/3) ...
[2021-12-17 16:01:56,697 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d880f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:01:56, skipping insertion in model container
[2021-12-17 16:01:56,697 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:01:56" (3/3) ...
[2021-12-17 16:01:56,698 INFO  L111   eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M4-1.c
[2021-12-17 16:01:56,701 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-12-17 16:01:56,701 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-12-17 16:01:56,749 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-12-17 16:01:56,756 INFO  L339      AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR
[2021-12-17 16:01:56,757 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-12-17 16:01:56,809 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2341 states, 1377 states have (on average 1.198257080610022) internal successors, (1650), 1381 states have internal predecessors, (1650), 940 states have call successors, (940), 22 states have call predecessors, (940), 22 states have return successors, (940), 938 states have call predecessors, (940), 940 states have call successors, (940)
[2021-12-17 16:01:56,868 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1339
[2021-12-17 16:01:56,868 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-17 16:01:56,869 INFO  L514         BasicCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-12-17 16:01:56,870 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-17 16:01:56,874 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-17 16:01:56,875 INFO  L85        PathProgramCache]: Analyzing trace with hash -590931743, now seen corresponding path program 1 times
[2021-12-17 16:01:56,882 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-17 16:01:56,883 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099768238]
[2021-12-17 16:01:56,883 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-17 16:01:56,884 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms