./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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.M1-2.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 0578c41b95f42d85ac77fb0006dcba936c74afd1d4a8fb3392e12544fff9b4d0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 13:35:26,533 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 13:35:26,541 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 13:35:26,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 13:35:26,591 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 13:35:26,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 13:35:26,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 13:35:26,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 13:35:26,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 13:35:26,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 13:35:26,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 13:35:26,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 13:35:26,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 13:35:26,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 13:35:26,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 13:35:26,617 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 13:35:26,618 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 13:35:26,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 13:35:26,623 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 13:35:26,625 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 13:35:26,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 13:35:26,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 13:35:26,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 13:35:26,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 13:35:26,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 13:35:26,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 13:35:26,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 13:35:26,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 13:35:26,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 13:35:26,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 13:35:26,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 13:35:26,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 13:35:26,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 13:35:26,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 13:35:26,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 13:35:26,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 13:35:26,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 13:35:26,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 13:35:26,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 13:35:26,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 13:35:26,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 13:35:26,649 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 13:35:26,677 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 13:35:26,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 13:35:26,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 13:35:26,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 13:35:26,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 13:35:26,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 13:35:26,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 13:35:26,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 13:35:26,688 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 13:35:26,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 13:35:26,690 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 13:35:26,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 13:35:26,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 13:35:26,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 13:35:26,691 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 13:35:26,691 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 13:35:26,691 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 13:35:26,691 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 13:35:26,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 13:35:26,692 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 13:35:26,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 13:35:26,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 13:35:26,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 13:35:26,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 13:35:26,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:35:26,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 13:35:26,694 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 13:35:26,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 13:35:26,694 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 13:35:26,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 13:35:26,694 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 13:35:26,695 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 13:35:26,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 13:35:26,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 13:35:26,695 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0578c41b95f42d85ac77fb0006dcba936c74afd1d4a8fb3392e12544fff9b4d0 [2021-12-21 13:35:26,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 13:35:26,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 13:35:26,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 13:35:26,972 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 13:35:26,973 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 13:35:26,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c [2021-12-21 13:35:27,039 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a76898f/6bd5a399c97d4a84b100bb894ba92d52/FLAG007325c61 [2021-12-21 13:35:27,578 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 13:35:27,579 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-2.c [2021-12-21 13:35:27,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a76898f/6bd5a399c97d4a84b100bb894ba92d52/FLAG007325c61 [2021-12-21 13:35:27,999 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8a76898f/6bd5a399c97d4a84b100bb894ba92d52 [2021-12-21 13:35:28,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 13:35:28,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 13:35:28,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 13:35:28,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 13:35:28,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 13:35:28,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:28,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ac21635 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28, skipping insertion in model container [2021-12-21 13:35:28,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:28,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 13:35:28,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 13:35:28,235 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.M1-2.c[1719,1732] [2021-12-21 13:35:28,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:35:28,661 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 13:35:28,674 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.M1-2.c[1719,1732] [2021-12-21 13:35:28,880 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 13:35:28,899 INFO L208 MainTranslator]: Completed translation [2021-12-21 13:35:28,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28 WrapperNode [2021-12-21 13:35:28,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 13:35:28,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 13:35:28,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 13:35:28,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 13:35:28,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:28,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:29,184 INFO L137 Inliner]: procedures = 58, calls = 3129, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 5929 [2021-12-21 13:35:29,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 13:35:29,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 13:35:29,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 13:35:29,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 13:35:29,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:29,194 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:29,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:29,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:29,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:29,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:29,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:29,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 13:35:29,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 13:35:29,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 13:35:29,570 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 13:35:29,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28" (1/1) ... [2021-12-21 13:35:29,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 13:35:29,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 13:35:29,604 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) [2021-12-21 13:35:29,653 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 [2021-12-21 13:35:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 13:35:29,673 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2021-12-21 13:35:29,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2021-12-21 13:35:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-21 13:35:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-21 13:35:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-21 13:35:29,674 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-21 13:35:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 13:35:29,674 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-21 13:35:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-21 13:35:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-21 13:35:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-21 13:35:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-21 13:35:29,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-21 13:35:29,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 13:35:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-21 13:35:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-21 13:35:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-21 13:35:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-21 13:35:29,676 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2021-12-21 13:35:29,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2021-12-21 13:35:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-21 13:35:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-21 13:35:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-21 13:35:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-21 13:35:29,677 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-21 13:35:29,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2021-12-21 13:35:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 13:35:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 13:35:29,678 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-21 13:35:29,678 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-21 13:35:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-21 13:35:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-21 13:35:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2021-12-21 13:35:29,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2021-12-21 13:35:29,679 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2021-12-21 13:35:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2021-12-21 13:35:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 13:35:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 13:35:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 13:35:29,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 13:35:29,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 13:35:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-21 13:35:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-21 13:35:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-21 13:35:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-21 13:35:29,681 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-21 13:35:29,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-21 13:35:29,682 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2021-12-21 13:35:29,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2021-12-21 13:35:30,259 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 13:35:30,260 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 13:35:38,259 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 13:35:38,290 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 13:35:38,291 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 13:35:38,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:35:38 BoogieIcfgContainer [2021-12-21 13:35:38,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 13:35:38,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 13:35:38,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 13:35:38,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 13:35:38,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 01:35:28" (1/3) ... [2021-12-21 13:35:38,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255a40fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:35:38, skipping insertion in model container [2021-12-21 13:35:38,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 01:35:28" (2/3) ... [2021-12-21 13:35:38,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@255a40fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 01:35:38, skipping insertion in model container [2021-12-21 13:35:38,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 01:35:38" (3/3) ... [2021-12-21 13:35:38,307 INFO L111 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M1-2.c [2021-12-21 13:35:38,312 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 13:35:38,312 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 13:35:38,373 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 13:35:38,381 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 [2021-12-21 13:35:38,382 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 13:35:38,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 2333 states, 1372 states have (on average 1.1989795918367347) internal successors, (1645), 1377 states have internal predecessors, (1645), 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) [2021-12-21 13:35:38,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2021-12-21 13:35:38,522 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 13:35:38,523 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] [2021-12-21 13:35:38,524 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 13:35:38,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 13:35:38,531 INFO L85 PathProgramCache]: Analyzing trace with hash -662020641, now seen corresponding path program 1 times [2021-12-21 13:35:38,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 13:35:38,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729392926] [2021-12-21 13:35:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 13:35:38,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms