./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/rekcba_nxt.2.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 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:21:44,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:21:44,524 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:21:44,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:21:44,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:21:44,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:21:44,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:21:44,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:21:44,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:21:44,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:21:44,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:21:44,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:21:44,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:21:44,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:21:44,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:21:44,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:21:44,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:21:44,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:21:44,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:21:44,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:21:44,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:21:44,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:21:44,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:21:44,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:21:44,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:21:44,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:21:44,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:21:44,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:21:44,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:21:44,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:21:44,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:21:44,618 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:21:44,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:21:44,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:21:44,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:21:44,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:21:44,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:21:44,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:21:44,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:21:44,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:21:44,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:21:44,625 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:21:44,656 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:21:44,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:21:44,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:21:44,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:21:44,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:21:44,659 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:21:44,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:21:44,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:21:44,660 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:21:44,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:21:44,661 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:21:44,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:21:44,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:21:44,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:21:44,662 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:21:44,662 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:21:44,663 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:21:44,663 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:21:44,663 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:21:44,663 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:21:44,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:21:44,664 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:21:44,664 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:21:44,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:21:44,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:21:44,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:21:44,665 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:21:44,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:21:44,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:21:44,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:21:44,666 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:21:44,666 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:21:44,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:21:44,666 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:21:44,666 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a [2021-12-15 11:21:44,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:21:44,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:21:44,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:21:44,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:21:44,949 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:21:44,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2021-12-15 11:21:45,007 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3eda694f/494d9e41d31a430fbd975910aef8b7ca/FLAGc5752ceab [2021-12-15 11:21:45,681 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:21:45,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2021-12-15 11:21:45,735 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3eda694f/494d9e41d31a430fbd975910aef8b7ca/FLAGc5752ceab [2021-12-15 11:21:45,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3eda694f/494d9e41d31a430fbd975910aef8b7ca [2021-12-15 11:21:45,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:21:45,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:21:45,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:21:45,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:21:45,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:21:45,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:21:45" (1/1) ... [2021-12-15 11:21:45,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ea03505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:45, skipping insertion in model container [2021-12-15 11:21:45,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:21:45" (1/1) ... [2021-12-15 11:21:45,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:21:45,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:21:46,225 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/rekcba_nxt.2.M4-1.c[2195,2208] [2021-12-15 11:21:47,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:21:47,178 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:21:47,198 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/rekcba_nxt.2.M4-1.c[2195,2208] [2021-12-15 11:21:47,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:21:47,996 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:21:47,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47 WrapperNode [2021-12-15 11:21:47,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:21:47,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:21:47,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:21:47,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:21:48,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47" (1/1) ... [2021-12-15 11:21:48,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47" (1/1) ... [2021-12-15 11:21:49,572 INFO L137 Inliner]: procedures = 58, calls = 18195, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 39852 [2021-12-15 11:21:49,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:21:49,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:21:49,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:21:49,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:21:49,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47" (1/1) ... [2021-12-15 11:21:49,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47" (1/1) ... [2021-12-15 11:21:49,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47" (1/1) ... [2021-12-15 11:21:49,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47" (1/1) ... [2021-12-15 11:21:50,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47" (1/1) ... [2021-12-15 11:21:50,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47" (1/1) ... [2021-12-15 11:21:50,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47" (1/1) ... [2021-12-15 11:21:50,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:21:50,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:21:50,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:21:50,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:21:50,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47" (1/1) ... [2021-12-15 11:21:50,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:21:50,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:21:50,893 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) [2021-12-15 11:21:50,913 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 [2021-12-15 11:21:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:21:50,930 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-15 11:21:50,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-15 11:21:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-15 11:21:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-15 11:21:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 11:21:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-15 11:21:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-15 11:21:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-15 11:21:50,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-15 11:21:50,931 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-15 11:21:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-15 11:21:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 11:21:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-15 11:21:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-15 11:21:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-15 11:21:50,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-15 11:21:50,932 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-15 11:21:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-15 11:21:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-15 11:21:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-15 11:21:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 11:21:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2021-12-15 11:21:50,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2021-12-15 11:21:50,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 11:21:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-15 11:21:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-15 11:21:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-15 11:21:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-15 11:21:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 11:21:50,934 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 11:21:50,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:21:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:21:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:21:50,935 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-15 11:21:50,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-15 11:21:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-15 11:21:50,936 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-15 11:21:50,936 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-15 11:21:50,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-15 11:21:52,656 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:21:52,657 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:22:19,636 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:22:19,886 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:22:19,895 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 11:22:19,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:22:19 BoogieIcfgContainer [2021-12-15 11:22:19,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:22:19,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:22:19,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:22:19,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:22:19,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:21:45" (1/3) ... [2021-12-15 11:22:19,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2780bfe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:22:19, skipping insertion in model container [2021-12-15 11:22:19,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:21:47" (2/3) ... [2021-12-15 11:22:19,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2780bfe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:22:19, skipping insertion in model container [2021-12-15 11:22:19,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:22:19" (3/3) ... [2021-12-15 11:22:19,922 INFO L111 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M4-1.c [2021-12-15 11:22:19,928 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:22:19,929 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:22:20,033 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:22:20,045 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 [2021-12-15 11:22:20,045 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:22:20,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 12240 states, 7996 states have (on average 1.3156578289144572) internal successors, (10520), 8109 states have internal predecessors, (10520), 4226 states have call successors, (4226), 16 states have call predecessors, (4226), 16 states have return successors, (4226), 4224 states have call predecessors, (4226), 4226 states have call successors, (4226) [2021-12-15 11:22:20,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4617 [2021-12-15 11:22:20,875 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:22:20,878 INFO L514 BasicCegarLoop]: trace histogram [337, 337, 337, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:22:20,879 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:22:20,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:22:20,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1377856296, now seen corresponding path program 1 times [2021-12-15 11:22:20,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:22:20,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897570430] [2021-12-15 11:22:20,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:22:20,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:22:21,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:22:21,098 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 11:22:21,103 INFO L158 Benchmark]: Toolchain (without parser) took 35295.10ms. Allocated memory was 104.9MB in the beginning and 4.0GB in the end (delta: 3.9GB). Free memory was 57.0MB in the beginning and 3.5GB in the end (delta: -3.5GB). Peak memory consumption was 639.1MB. Max. memory is 16.1GB. [2021-12-15 11:22:21,103 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:22:21,104 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2187.92ms. Allocated memory was 104.9MB in the beginning and 308.3MB in the end (delta: 203.4MB). Free memory was 56.7MB in the beginning and 185.0MB in the end (delta: -128.2MB). Peak memory consumption was 147.2MB. Max. memory is 16.1GB. [2021-12-15 11:22:21,105 INFO L158 Benchmark]: Boogie Procedure Inliner took 1575.30ms. Allocated memory was 308.3MB in the beginning and 765.5MB in the end (delta: 457.2MB). Free memory was 185.0MB in the beginning and 513.1MB in the end (delta: -328.1MB). Peak memory consumption was 162.6MB. Max. memory is 16.1GB. [2021-12-15 11:22:21,105 INFO L158 Benchmark]: Boogie Preprocessor took 1281.29ms. Allocated memory is still 765.5MB. Free memory was 513.1MB in the beginning and 441.8MB in the end (delta: 71.3MB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. [2021-12-15 11:22:21,106 INFO L158 Benchmark]: RCFGBuilder took 29056.38ms. Allocated memory was 765.5MB in the beginning and 4.0GB in the end (delta: 3.2GB). Free memory was 441.8MB in the beginning and 3.6GB in the end (delta: -3.1GB). Peak memory consumption was 527.4MB. Max. memory is 16.1GB. [2021-12-15 11:22:21,106 INFO L158 Benchmark]: TraceAbstraction took 1187.64ms. Allocated memory is still 4.0GB. Free memory was 3.5GB in the beginning and 3.5GB in the end (delta: 37.9MB). Peak memory consumption was 249.6MB. Max. memory is 16.1GB. [2021-12-15 11:22:21,109 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 104.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2187.92ms. Allocated memory was 104.9MB in the beginning and 308.3MB in the end (delta: 203.4MB). Free memory was 56.7MB in the beginning and 185.0MB in the end (delta: -128.2MB). Peak memory consumption was 147.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 1575.30ms. Allocated memory was 308.3MB in the beginning and 765.5MB in the end (delta: 457.2MB). Free memory was 185.0MB in the beginning and 513.1MB in the end (delta: -328.1MB). Peak memory consumption was 162.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 1281.29ms. Allocated memory is still 765.5MB. Free memory was 513.1MB in the beginning and 441.8MB in the end (delta: 71.3MB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. * RCFGBuilder took 29056.38ms. Allocated memory was 765.5MB in the beginning and 4.0GB in the end (delta: 3.2GB). Free memory was 441.8MB in the beginning and 3.6GB in the end (delta: -3.1GB). Peak memory consumption was 527.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1187.64ms. Allocated memory is still 4.0GB. Free memory was 3.5GB in the beginning and 3.5GB in the end (delta: 37.9MB). Peak memory consumption was 249.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:22:21,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/rekcba_nxt.2.M4-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:22:23,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:22:23,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:22:23,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:22:23,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:22:23,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:22:23,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:22:23,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:22:23,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:22:23,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:22:23,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:22:23,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:22:23,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:22:23,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:22:23,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:22:23,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:22:23,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:22:23,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:22:23,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:22:23,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:22:23,374 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:22:23,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:22:23,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:22:23,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:22:23,384 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:22:23,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:22:23,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:22:23,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:22:23,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:22:23,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:22:23,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:22:23,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:22:23,394 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:22:23,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:22:23,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:22:23,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:22:23,397 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:22:23,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:22:23,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:22:23,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:22:23,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:22:23,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:22:23,436 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:22:23,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:22:23,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:22:23,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:22:23,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:22:23,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:22:23,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:22:23,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:22:23,441 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:22:23,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:22:23,442 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:22:23,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:22:23,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:22:23,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:22:23,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:22:23,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:22:23,443 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:22:23,444 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:22:23,444 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:22:23,444 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:22:23,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:22:23,444 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:22:23,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:22:23,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:22:23,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:22:23,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:22:23,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:22:23,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:22:23,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:22:23,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:22:23,446 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:22:23,446 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:22:23,447 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:22:23,447 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:22:23,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:22:23,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:22:23,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:22:23,448 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6240875fd021ef86002633b5e6fdfcec4ffcbe681ff045b4f4e341a758fe554a [2021-12-15 11:22:23,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:22:23,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:22:23,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:22:23,817 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:22:23,819 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:22:23,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2021-12-15 11:22:23,876 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dfbe5c7b/7be310f409b64b9d8e961e1db490b853/FLAG505a7ff84 [2021-12-15 11:22:24,811 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:22:24,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M4-1.c [2021-12-15 11:22:24,868 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dfbe5c7b/7be310f409b64b9d8e961e1db490b853/FLAG505a7ff84 [2021-12-15 11:22:25,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dfbe5c7b/7be310f409b64b9d8e961e1db490b853 [2021-12-15 11:22:25,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:22:25,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:22:25,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:22:25,299 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:22:25,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:22:25,303 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:22:25" (1/1) ... [2021-12-15 11:22:25,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dbd56e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:25, skipping insertion in model container [2021-12-15 11:22:25,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:22:25" (1/1) ... [2021-12-15 11:22:25,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:22:25,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:22:25,821 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/rekcba_nxt.2.M4-1.c[2195,2208] [2021-12-15 11:22:26,993 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:22:27,017 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:22:27,048 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/rekcba_nxt.2.M4-1.c[2195,2208] [2021-12-15 11:22:28,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:22:28,304 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:22:28,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:28 WrapperNode [2021-12-15 11:22:28,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:22:28,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:22:28,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:22:28,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:22:28,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:28" (1/1) ... [2021-12-15 11:22:28,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:28" (1/1) ... [2021-12-15 11:22:29,853 INFO L137 Inliner]: procedures = 61, calls = 18195, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 39849 [2021-12-15 11:22:29,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:22:29,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:22:29,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:22:29,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:22:29,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:28" (1/1) ... [2021-12-15 11:22:29,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:28" (1/1) ... [2021-12-15 11:22:30,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:28" (1/1) ... [2021-12-15 11:22:30,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:28" (1/1) ... [2021-12-15 11:22:30,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:28" (1/1) ... [2021-12-15 11:22:30,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:28" (1/1) ... [2021-12-15 11:22:30,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:28" (1/1) ... [2021-12-15 11:22:31,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:22:31,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:22:31,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:22:31,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:22:31,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:22:28" (1/1) ... [2021-12-15 11:22:31,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:22:31,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:22:31,197 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) [2021-12-15 11:22:31,222 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 [2021-12-15 11:22:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:22:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2021-12-15 11:22:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2021-12-15 11:22:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-12-15 11:22:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2021-12-15 11:22:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2021-12-15 11:22:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 11:22:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2021-12-15 11:22:31,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2021-12-15 11:22:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2021-12-15 11:22:31,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2021-12-15 11:22:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 11:22:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2021-12-15 11:22:31,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2021-12-15 11:22:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2021-12-15 11:22:31,240 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2021-12-15 11:22:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2021-12-15 11:22:31,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2021-12-15 11:22:31,240 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-15 11:22:31,240 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2021-12-15 11:22:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-15 11:22:31,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2021-12-15 11:22:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 11:22:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 11:22:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 11:22:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2021-12-15 11:22:31,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2021-12-15 11:22:31,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:22:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2021-12-15 11:22:31,242 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2021-12-15 11:22:31,242 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2021-12-15 11:22:31,242 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2021-12-15 11:22:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 11:22:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 11:22:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:22:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:22:31,243 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2021-12-15 11:22:31,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2021-12-15 11:22:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2021-12-15 11:22:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2021-12-15 11:22:31,244 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2021-12-15 11:22:31,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2021-12-15 11:22:33,229 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:22:33,231 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation