./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.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.M1-1.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 2db6eb55010ab7d3a1a946055e6deb2837efdfd8388654051519bf5d1a66e523
--- Real Ultimate output ---
This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41
[2021-12-17 16:01:32,559 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2021-12-17 16:01:32,561 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2021-12-17 16:01:32,589 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-12-17 16:01:32,589 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-12-17 16:01:32,590 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-12-17 16:01:32,591 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-12-17 16:01:32,592 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2021-12-17 16:01:32,593 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-12-17 16:01:32,593 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-12-17 16:01:32,594 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2021-12-17 16:01:32,595 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-12-17 16:01:32,595 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-12-17 16:01:32,596 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-12-17 16:01:32,597 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-12-17 16:01:32,598 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-12-17 16:01:32,598 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-12-17 16:01:32,599 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-12-17 16:01:32,603 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-12-17 16:01:32,605 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2021-12-17 16:01:32,605 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-12-17 16:01:32,609 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-12-17 16:01:32,610 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2021-12-17 16:01:32,610 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-12-17 16:01:32,612 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-12-17 16:01:32,612 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-12-17 16:01:32,613 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-12-17 16:01:32,613 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-12-17 16:01:32,614 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-12-17 16:01:32,614 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-12-17 16:01:32,614 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-12-17 16:01:32,615 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-12-17 16:01:32,616 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-12-17 16:01:32,616 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2021-12-17 16:01:32,617 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-12-17 16:01:32,617 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2021-12-17 16:01:32,618 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-12-17 16:01:32,618 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-12-17 16:01:32,618 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2021-12-17 16:01:32,619 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2021-12-17 16:01:32,619 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2021-12-17 16:01:32,620 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-12-17 16:01:32,634 INFO  L113        SettingsManager]: Loading preferences was successful
[2021-12-17 16:01:32,635 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2021-12-17 16:01:32,635 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-12-17 16:01:32,635 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-12-17 16:01:32,636 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-12-17 16:01:32,636 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-12-17 16:01:32,637 INFO  L136        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-12-17 16:01:32,637 INFO  L138        SettingsManager]:  * Create parallel compositions if possible=false
[2021-12-17 16:01:32,637 INFO  L138        SettingsManager]:  * Use SBE=true
[2021-12-17 16:01:32,637 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-12-17 16:01:32,637 INFO  L138        SettingsManager]:  * sizeof long=4
[2021-12-17 16:01:32,638 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2021-12-17 16:01:32,638 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2021-12-17 16:01:32,638 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2021-12-17 16:01:32,638 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2021-12-17 16:01:32,638 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-12-17 16:01:32,638 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2021-12-17 16:01:32,639 INFO  L138        SettingsManager]:  * sizeof long double=12
[2021-12-17 16:01:32,639 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2021-12-17 16:01:32,639 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2021-12-17 16:01:32,639 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2021-12-17 16:01:32,639 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-12-17 16:01:32,640 INFO  L138        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2021-12-17 16:01:32,640 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2021-12-17 16:01:32,640 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-17 16:01:32,640 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-12-17 16:01:32,640 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2021-12-17 16:01:32,640 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-12-17 16:01:32,641 INFO  L138        SettingsManager]:  * Trace refinement strategy=CAMEL
[2021-12-17 16:01:32,641 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-12-17 16:01:32,641 INFO  L138        SettingsManager]:  * Large block encoding in concurrent analysis=OFF
[2021-12-17 16:01:32,641 INFO  L138        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2021-12-17 16:01:32,641 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-12-17 16:01:32,641 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2021-12-17 16:01:32,642 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 -> 2db6eb55010ab7d3a1a946055e6deb2837efdfd8388654051519bf5d1a66e523
[2021-12-17 16:01:32,875 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2021-12-17 16:01:32,890 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-12-17 16:01:32,894 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-12-17 16:01:32,895 INFO  L271        PluginConnector]: Initializing CDTParser...
[2021-12-17 16:01:32,895 INFO  L275        PluginConnector]: CDTParser initialized
[2021-12-17 16:01:32,896 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c
[2021-12-17 16:01:32,942 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96201336c/7d7ac409f6b04d429cc8c692bb0135cc/FLAG737da552d
[2021-12-17 16:01:33,446 INFO  L306              CDTParser]: Found 1 translation units.
[2021-12-17 16:01:33,446 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c
[2021-12-17 16:01:33,470 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96201336c/7d7ac409f6b04d429cc8c692bb0135cc/FLAG737da552d
[2021-12-17 16:01:33,966 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96201336c/7d7ac409f6b04d429cc8c692bb0135cc
[2021-12-17 16:01:33,968 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-12-17 16:01:33,969 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2021-12-17 16:01:33,970 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-12-17 16:01:33,970 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-12-17 16:01:33,975 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2021-12-17 16:01:33,975 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:01:33" (1/1) ...
[2021-12-17 16:01:33,976 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7641300f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:33, skipping insertion in model container
[2021-12-17 16:01:33,976 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 04:01:33" (1/1) ...
[2021-12-17 16:01:33,981 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2021-12-17 16:01:34,062 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2021-12-17 16:01:34,194 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.M1-1.c[1800,1813]
[2021-12-17 16:01:34,501 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-17 16:01:34,509 INFO  L203         MainTranslator]: Completed pre-run
[2021-12-17 16:01:34,520 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.M1-1.c[1800,1813]
[2021-12-17 16:01:34,681 INFO  L209          PostProcessor]: Analyzing one entry point: main
[2021-12-17 16:01:34,694 INFO  L208         MainTranslator]: Completed translation
[2021-12-17 16:01:34,695 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34 WrapperNode
[2021-12-17 16:01:34,695 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-12-17 16:01:34,696 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-12-17 16:01:34,697 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-12-17 16:01:34,697 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2021-12-17 16:01:34,701 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34" (1/1) ...
[2021-12-17 16:01:34,751 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34" (1/1) ...
[2021-12-17 16:01:34,864 INFO  L137                Inliner]: procedures = 60, calls = 3129, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5933
[2021-12-17 16:01:34,865 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-12-17 16:01:34,866 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-12-17 16:01:34,866 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2021-12-17 16:01:34,866 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2021-12-17 16:01:34,871 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34" (1/1) ...
[2021-12-17 16:01:34,872 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34" (1/1) ...
[2021-12-17 16:01:34,941 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34" (1/1) ...
[2021-12-17 16:01:34,944 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34" (1/1) ...
[2021-12-17 16:01:35,021 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34" (1/1) ...
[2021-12-17 16:01:35,039 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34" (1/1) ...
[2021-12-17 16:01:35,054 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34" (1/1) ...
[2021-12-17 16:01:35,076 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-12-17 16:01:35,077 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-12-17 16:01:35,078 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2021-12-17 16:01:35,078 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2021-12-17 16:01:35,079 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34" (1/1) ...
[2021-12-17 16:01:35,083 INFO  L168          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-12-17 16:01:35,091 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2021-12-17 16:01:35,101 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 16:01:35,109 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 16:01:35,133 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2021-12-17 16:01:35,134 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward
[2021-12-17 16:01:35,134 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward
[2021-12-17 16:01:35,134 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t2
[2021-12-17 16:01:35,134 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2
[2021-12-17 16:01:35,134 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode
[2021-12-17 16:01:35,134 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode
[2021-12-17 16:01:35,134 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-12-17 16:01:35,134 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t0
[2021-12-17 16:01:35,135 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0
[2021-12-17 16:01:35,135 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_cs_t1
[2021-12-17 16:01:35,135 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1
[2021-12-17 16:01:35,135 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag
[2021-12-17 16:01:35,136 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag
[2021-12-17 16:01:35,136 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2021-12-17 16:01:35,136 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_count
[2021-12-17 16:01:35,136 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count
[2021-12-17 16:01:35,136 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor
[2021-12-17 16:01:35,136 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor
[2021-12-17 16:01:35,136 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn
[2021-12-17 16:01:35,137 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn
[2021-12-17 16:01:35,137 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1
[2021-12-17 16:01:35,137 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1
[2021-12-17 16:01:35,137 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2
[2021-12-17 16:01:35,137 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2
[2021-12-17 16:01:35,137 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3
[2021-12-17 16:01:35,137 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3
[2021-12-17 16:01:35,137 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2021-12-17 16:01:35,138 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2021-12-17 16:01:35,138 INFO  L130     BoogieDeclarations]: Found specification of procedure assert
[2021-12-17 16:01:35,138 INFO  L138     BoogieDeclarations]: Found implementation of procedure assert
[2021-12-17 16:01:35,138 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed
[2021-12-17 16:01:35,138 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed
[2021-12-17 16:01:35,138 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward
[2021-12-17 16:01:35,138 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward
[2021-12-17 16:01:35,139 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag
[2021-12-17 16:01:35,139 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag
[2021-12-17 16:01:35,139 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2021-12-17 16:01:35,139 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2021-12-17 16:01:35,139 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2021-12-17 16:01:35,139 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-12-17 16:01:35,139 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-12-17 16:01:35,139 INFO  L130     BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms
[2021-12-17 16:01:35,140 INFO  L138     BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms
[2021-12-17 16:01:35,140 INFO  L130     BoogieDeclarations]: Found specification of procedure nxt_motor_get_count
[2021-12-17 16:01:35,140 INFO  L138     BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count
[2021-12-17 16:01:35,140 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode
[2021-12-17 16:01:35,140 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode
[2021-12-17 16:01:35,140 INFO  L130     BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn
[2021-12-17 16:01:35,140 INFO  L138     BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn
[2021-12-17 16:01:35,644 INFO  L236             CfgBuilder]: Building ICFG
[2021-12-17 16:01:35,646 INFO  L262             CfgBuilder]: Building CFG for each procedure with an implementation
[2021-12-17 16:01:43,726 INFO  L277             CfgBuilder]: Performing block encoding
[2021-12-17 16:01:43,746 INFO  L296             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-12-17 16:01:43,747 INFO  L301             CfgBuilder]: Removed 1 assume(true) statements.
[2021-12-17 16:01:43,750 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:01:43 BoogieIcfgContainer
[2021-12-17 16:01:43,750 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-12-17 16:01:43,752 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-12-17 16:01:43,752 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2021-12-17 16:01:43,754 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2021-12-17 16:01:43,754 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 04:01:33" (1/3) ...
[2021-12-17 16:01:43,755 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe8fa1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:01:43, skipping insertion in model container
[2021-12-17 16:01:43,755 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 04:01:34" (2/3) ...
[2021-12-17 16:01:43,755 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe8fa1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 04:01:43, skipping insertion in model container
[2021-12-17 16:01:43,756 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 04:01:43" (3/3) ...
[2021-12-17 16:01:43,758 INFO  L111   eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M1-1.c
[2021-12-17 16:01:43,761 INFO  L204   ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-12-17 16:01:43,761 INFO  L163   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-12-17 16:01:43,808 INFO  L338      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-12-17 16:01:43,814 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 16:01:43,815 INFO  L340      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-12-17 16:01:43,857 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 2335 states, 1374 states have (on average 1.1986899563318778) internal successors, (1647), 1378 states have internal predecessors, (1647), 938 states have call successors, (938), 21 states have call predecessors, (938), 21 states have return successors, (938), 936 states have call predecessors, (938), 938 states have call successors, (938)
[2021-12-17 16:01:43,906 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 1337
[2021-12-17 16:01:43,906 INFO  L506         BasicCegarLoop]: Found error trace
[2021-12-17 16:01:43,908 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]
[2021-12-17 16:01:43,908 INFO  L402      AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-12-17 16:01:43,912 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2021-12-17 16:01:43,912 INFO  L85        PathProgramCache]: Analyzing trace with hash -534578223, now seen corresponding path program 1 times
[2021-12-17 16:01:43,918 INFO  L121   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-12-17 16:01:43,918 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822215107]
[2021-12-17 16:01:43,918 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-12-17 16:01:43,919 INFO  L126          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms