./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R --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 cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:39:52,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:39:52,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:39:52,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:39:52,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:39:52,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:39:52,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:39:52,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:39:52,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:39:52,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:39:52,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:39:52,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:39:52,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:39:52,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:39:52,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:39:52,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:39:52,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:39:52,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:39:52,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:39:52,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:39:52,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:39:52,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:39:52,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:39:52,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:39:52,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:39:52,194 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:39:52,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:39:52,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:39:52,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:39:52,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:39:52,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:39:52,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:39:52,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:39:52,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:39:52,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:39:52,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:39:52,202 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:39:52,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:39:52,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:39:52,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:39:52,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:39:52,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:39:52,247 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:39:52,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:39:52,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:39:52,253 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:39:52,254 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:39:52,254 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:39:52,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:39:52,255 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:39:52,255 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:39:52,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:39:52,257 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:39:52,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:39:52,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:39:52,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:39:52,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:39:52,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:39:52,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:39:52,259 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:39:52,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:39:52,259 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:39:52,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:39:52,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:39:52,260 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:39:52,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:39:52,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:39:52,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:39:52,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:39:52,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:39:52,262 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:39:52,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:39:52,262 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:39:52,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:39:52,263 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:39:52,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:39:52,263 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdfe8cdf5ef6acb015ae980f200d66be6855e21e0a93c803bebabec43209e961 [2022-11-25 17:39:52,585 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:39:52,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:39:52,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:39:52,618 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:39:52,619 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:39:52,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-11-25 17:39:55,776 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:39:56,283 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:39:56,284 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c [2022-11-25 17:39:56,314 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/data/73a45634e/8d74dd7d3ff9440385537b81044a26d2/FLAGf01d5e3b4 [2022-11-25 17:39:56,363 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/data/73a45634e/8d74dd7d3ff9440385537b81044a26d2 [2022-11-25 17:39:56,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:39:56,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:39:56,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:39:56,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:39:56,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:39:56,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:39:56" (1/1) ... [2022-11-25 17:39:56,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0b5a92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:56, skipping insertion in model container [2022-11-25 17:39:56,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:39:56" (1/1) ... [2022-11-25 17:39:56,389 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:39:56,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:39:56,659 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-11-25 17:39:57,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:39:57,413 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:39:57,434 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/sv-benchmarks/c/seq-mthreaded/rekh_ctm.2-1.c[1871,1884] [2022-11-25 17:39:57,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:39:57,859 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:39:57,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57 WrapperNode [2022-11-25 17:39:57,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:39:57,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:39:57,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:39:57,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:39:57,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (1/1) ... [2022-11-25 17:39:57,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (1/1) ... [2022-11-25 17:39:58,151 INFO L138 Inliner]: procedures = 99, calls = 2724, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8254 [2022-11-25 17:39:58,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:39:58,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:39:58,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:39:58,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:39:58,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (1/1) ... [2022-11-25 17:39:58,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (1/1) ... [2022-11-25 17:39:58,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (1/1) ... [2022-11-25 17:39:58,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (1/1) ... [2022-11-25 17:39:58,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (1/1) ... [2022-11-25 17:39:58,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (1/1) ... [2022-11-25 17:39:58,526 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (1/1) ... [2022-11-25 17:39:58,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (1/1) ... [2022-11-25 17:39:58,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:39:58,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:39:58,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:39:58,589 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:39:58,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (1/1) ... [2022-11-25 17:39:58,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:39:58,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:39:58,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:39:58,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb89108-3613-4fd6-aa15-523e236f8197/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:39:58,672 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-25 17:39:58,672 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-25 17:39:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-25 17:39:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-25 17:39:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:39:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 17:39:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-25 17:39:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-25 17:39:58,674 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-25 17:39:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-25 17:39:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-25 17:39:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-25 17:39:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-25 17:39:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-25 17:39:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-25 17:39:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-25 17:39:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-25 17:39:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-25 17:39:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-25 17:39:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 17:39:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-25 17:39:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:39:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-25 17:39:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-25 17:39:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-25 17:39:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-25 17:39:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-25 17:39:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-25 17:39:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-25 17:39:58,679 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-25 17:39:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-25 17:39:58,679 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-25 17:39:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-25 17:39:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-25 17:39:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-25 17:39:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-25 17:39:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:39:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-25 17:39:58,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-25 17:39:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-25 17:39:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-25 17:39:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-25 17:39:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-25 17:39:58,683 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-25 17:39:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-25 17:39:58,683 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-25 17:39:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-25 17:39:58,683 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-25 17:39:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-25 17:39:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-25 17:39:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-25 17:39:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-25 17:39:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-25 17:39:58,685 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-25 17:39:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-25 17:39:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-25 17:39:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-25 17:39:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-25 17:39:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-25 17:39:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-25 17:39:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-25 17:39:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-25 17:39:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-25 17:39:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 17:39:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-25 17:39:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-25 17:39:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-25 17:39:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-25 17:39:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-25 17:39:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-25 17:39:58,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-25 17:39:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-25 17:39:58,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-25 17:39:58,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-25 17:39:58,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-25 17:39:58,690 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-25 17:39:58,690 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-25 17:39:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-25 17:39:58,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-25 17:39:58,691 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-25 17:39:58,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-25 17:39:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-25 17:39:58,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-25 17:39:58,692 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-25 17:39:58,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-25 17:39:58,693 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-25 17:39:58,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-25 17:39:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-25 17:39:58,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-25 17:39:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:39:58,694 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-25 17:39:58,695 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-25 17:39:58,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:39:58,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:39:59,374 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:39:59,377 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:40:14,398 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:40:14,423 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:40:14,423 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 17:40:14,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:14 BoogieIcfgContainer [2022-11-25 17:40:14,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:40:14,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:40:14,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:40:14,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:40:14,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:39:56" (1/3) ... [2022-11-25 17:40:14,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5830d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:14, skipping insertion in model container [2022-11-25 17:40:14,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:39:57" (2/3) ... [2022-11-25 17:40:14,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d5830d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:40:14, skipping insertion in model container [2022-11-25 17:40:14,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:40:14" (3/3) ... [2022-11-25 17:40:14,438 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.2-1.c [2022-11-25 17:40:14,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:40:14,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:40:14,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:40:14,554 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@54c8761b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:40:14,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:40:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand has 2453 states, 2105 states have (on average 1.4807600950118764) internal successors, (3117), 2129 states have internal predecessors, (3117), 302 states have call successors, (302), 44 states have call predecessors, (302), 44 states have return successors, (302), 292 states have call predecessors, (302), 302 states have call successors, (302) [2022-11-25 17:40:14,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-25 17:40:14,585 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:40:14,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:40:14,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:40:14,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:40:14,591 INFO L85 PathProgramCache]: Analyzing trace with hash -134003326, now seen corresponding path program 1 times [2022-11-25 17:40:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:40:14,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752050848] [2022-11-25 17:40:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:40:14,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms