./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN --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 c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 --- 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-6b4ec56 [2022-11-20 10:32:43,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:32:43,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:32:44,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:32:44,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:32:44,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:32:44,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:32:44,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:32:44,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:32:44,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:32:44,026 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:32:44,031 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:32:44,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:32:44,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:32:44,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:32:44,043 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:32:44,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:32:44,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:32:44,051 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:32:44,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:32:44,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:32:44,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:32:44,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:32:44,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:32:44,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:32:44,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:32:44,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:32:44,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:32:44,079 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:32:44,080 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:32:44,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:32:44,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:32:44,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:32:44,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:32:44,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:32:44,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:32:44,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:32:44,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:32:44,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:32:44,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:32:44,087 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:32:44,092 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 10:32:44,135 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:32:44,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:32:44,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:32:44,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:32:44,137 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:32:44,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:32:44,138 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:32:44,138 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:32:44,138 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:32:44,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:32:44,140 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:32:44,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:32:44,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:32:44,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:32:44,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:32:44,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:32:44,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:32:44,141 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:32:44,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:32:44,142 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:32:44,142 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:32:44,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:32:44,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:32:44,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:32:44,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:44,143 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:32:44,143 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:32:44,143 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:32:44,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:32:44,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:32:44,144 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:32:44,145 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:32:44,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:32:44,145 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3ec7c03a28dc415c6db5fadbfd8dcd491b1a493cd1bf88ef12d02131cd13437 [2022-11-20 10:32:44,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:32:44,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:32:44,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:32:44,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:32:44,500 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:32:44,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-20 10:32:47,546 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:32:48,058 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:32:48,058 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c [2022-11-20 10:32:48,087 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/data/1d99ed9b6/0c0d9c106e6549f2a73ed1841c1aed61/FLAGa01ad6173 [2022-11-20 10:32:48,140 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/data/1d99ed9b6/0c0d9c106e6549f2a73ed1841c1aed61 [2022-11-20 10:32:48,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:32:48,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:32:48,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:48,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:32:48,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:32:48,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66cea14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:48, skipping insertion in model container [2022-11-20 10:32:48,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:32:48" (1/1) ... [2022-11-20 10:32:48,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:32:48,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:32:48,444 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_42bc996a-8a04-480f-9ec4-3891ca4f4339/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-20 10:32:49,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:49,157 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:32:49,174 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_42bc996a-8a04-480f-9ec4-3891ca4f4339/sv-benchmarks/c/seq-mthreaded/rekh_ctm.1.c[1868,1881] [2022-11-20 10:32:49,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:32:49,531 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:32:49,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49 WrapperNode [2022-11-20 10:32:49,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:32:49,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:49,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:32:49,533 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:32:49,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (1/1) ... [2022-11-20 10:32:49,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (1/1) ... [2022-11-20 10:32:49,812 INFO L138 Inliner]: procedures = 99, calls = 2727, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 8247 [2022-11-20 10:32:49,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:32:49,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:32:49,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:32:49,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:32:49,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (1/1) ... [2022-11-20 10:32:49,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (1/1) ... [2022-11-20 10:32:49,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (1/1) ... [2022-11-20 10:32:49,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (1/1) ... [2022-11-20 10:32:50,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (1/1) ... [2022-11-20 10:32:50,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (1/1) ... [2022-11-20 10:32:50,217 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (1/1) ... [2022-11-20 10:32:50,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (1/1) ... [2022-11-20 10:32:50,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:32:50,270 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:32:50,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:32:50,271 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:32:50,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (1/1) ... [2022-11-20 10:32:50,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:32:50,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:32:50,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:32:50,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42bc996a-8a04-480f-9ec4-3891ca4f4339/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:32:50,355 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-20 10:32:50,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-20 10:32:50,355 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-20 10:32:50,356 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-20 10:32:50,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:32:50,356 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-20 10:32:50,357 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-20 10:32:50,357 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-20 10:32:50,357 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-20 10:32:50,357 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-20 10:32:50,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-20 10:32:50,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-20 10:32:50,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-20 10:32:50,358 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2022-11-20 10:32:50,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2022-11-20 10:32:50,358 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-20 10:32:50,359 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-20 10:32:50,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-20 10:32:50,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-20 10:32:50,359 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-20 10:32:50,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-20 10:32:50,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:32:50,360 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-20 10:32:50,360 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-20 10:32:50,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-20 10:32:50,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-20 10:32:50,360 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-20 10:32:50,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-20 10:32:50,361 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-20 10:32:50,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-20 10:32:50,362 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-20 10:32:50,362 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-20 10:32:50,363 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-20 10:32:50,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-20 10:32:50,363 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-20 10:32:50,364 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-20 10:32:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:32:50,364 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-20 10:32:50,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-20 10:32:50,365 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-20 10:32:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-20 10:32:50,365 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-20 10:32:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-20 10:32:50,365 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-20 10:32:50,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-20 10:32:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-20 10:32:50,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-20 10:32:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-20 10:32:50,366 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-20 10:32:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-20 10:32:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-20 10:32:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-20 10:32:50,367 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-20 10:32:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-20 10:32:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-20 10:32:50,368 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-20 10:32:50,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-20 10:32:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-20 10:32:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-20 10:32:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-20 10:32:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-20 10:32:50,369 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-20 10:32:50,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-20 10:32:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-20 10:32:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-20 10:32:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-20 10:32:50,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-20 10:32:50,370 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-20 10:32:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-20 10:32:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-20 10:32:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-20 10:32:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-20 10:32:50,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-20 10:32:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-20 10:32:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-20 10:32:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-20 10:32:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-20 10:32:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-20 10:32:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-20 10:32:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-20 10:32:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-20 10:32:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_need_to_run_nxtbg [2022-11-20 10:32:50,373 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_need_to_run_nxtbg [2022-11-20 10:32:50,373 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-20 10:32:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-20 10:32:50,374 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-20 10:32:50,374 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-20 10:32:50,375 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-20 10:32:50,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-20 10:32:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:32:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-20 10:32:50,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-20 10:32:50,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:32:50,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:32:51,086 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:32:51,090 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:33:08,331 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:33:08,358 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:33:08,358 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-20 10:33:08,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:33:08 BoogieIcfgContainer [2022-11-20 10:33:08,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:33:08,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:33:08,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:33:08,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:33:08,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:32:48" (1/3) ... [2022-11-20 10:33:08,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a754b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:33:08, skipping insertion in model container [2022-11-20 10:33:08,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:32:49" (2/3) ... [2022-11-20 10:33:08,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a754b43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:33:08, skipping insertion in model container [2022-11-20 10:33:08,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:33:08" (3/3) ... [2022-11-20 10:33:08,373 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_ctm.1.c [2022-11-20 10:33:08,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:33:08,393 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 10:33:08,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:33:08,495 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;@ac8de65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:33:08,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 10:33:08,507 INFO L276 IsEmpty]: Start isEmpty. Operand has 2464 states, 2113 states have (on average 1.480832938949361) internal successors, (3129), 2137 states have internal predecessors, (3129), 305 states have call successors, (305), 44 states have call predecessors, (305), 44 states have return successors, (305), 295 states have call predecessors, (305), 305 states have call successors, (305) [2022-11-20 10:33:08,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-20 10:33:08,527 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 10:33:08,528 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] [2022-11-20 10:33:08,528 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 10:33:08,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:33:08,534 INFO L85 PathProgramCache]: Analyzing trace with hash 463341211, now seen corresponding path program 1 times [2022-11-20 10:33:08,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:33:08,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213061800] [2022-11-20 10:33:08,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:33:08,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms