./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a --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 0cc4860b4f5a0d0365cbcd156b11008fe087fa6dc867cdd4b4d117ba6b8a4a03 --- 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-b5237d8 [2022-11-21 16:53:35,044 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:53:35,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:53:35,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:53:35,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:53:35,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:53:35,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:53:35,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:53:35,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:53:35,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:53:35,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:53:35,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:53:35,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:53:35,119 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:53:35,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:53:35,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:53:35,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:53:35,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:53:35,127 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:53:35,133 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:53:35,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:53:35,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:53:35,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:53:35,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:53:35,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:53:35,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:53:35,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:53:35,153 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:53:35,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:53:35,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:53:35,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:53:35,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:53:35,159 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:53:35,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:53:35,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:53:35,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:53:35,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:53:35,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:53:35,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:53:35,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:53:35,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:53:35,171 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:53:35,210 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:53:35,210 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:53:35,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:53:35,211 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:53:35,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:53:35,212 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:53:35,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:53:35,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:53:35,214 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:53:35,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:53:35,215 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:53:35,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:53:35,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:53:35,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:53:35,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:53:35,217 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:53:35,217 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:53:35,217 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:53:35,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:53:35,217 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:53:35,218 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:53:35,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:53:35,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:53:35,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:53:35,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:53:35,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:53:35,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:53:35,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:53:35,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:53:35,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:53:35,221 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:53:35,221 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:53:35,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:53:35,221 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_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cc4860b4f5a0d0365cbcd156b11008fe087fa6dc867cdd4b4d117ba6b8a4a03 [2022-11-21 16:53:35,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:53:35,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:53:35,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:53:35,610 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:53:35,611 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:53:35,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c [2022-11-21 16:53:39,240 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:53:39,924 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:53:39,925 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c [2022-11-21 16:53:39,980 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/data/c0204d400/7aa17566202f4b6fa2f190b8adca6573/FLAGd6ec8203f [2022-11-21 16:53:40,003 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/data/c0204d400/7aa17566202f4b6fa2f190b8adca6573 [2022-11-21 16:53:40,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:53:40,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:53:40,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:53:40,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:53:40,019 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:53:40,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:53:40" (1/1) ... [2022-11-21 16:53:40,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637cd599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:40, skipping insertion in model container [2022-11-21 16:53:40,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:53:40" (1/1) ... [2022-11-21 16:53:40,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:53:40,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:53:40,561 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_a5749876-beb4-4725-9ca8-974468e914f0/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c[2216,2229] [2022-11-21 16:53:41,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:53:41,827 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:53:41,849 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_a5749876-beb4-4725-9ca8-974468e914f0/sv-benchmarks/c/seq-mthreaded/rekcba_ctm.2-1.c[2216,2229] [2022-11-21 16:53:42,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:53:42,610 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:53:42,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42 WrapperNode [2022-11-21 16:53:42,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:53:42,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:53:42,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:53:42,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:53:42,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (1/1) ... [2022-11-21 16:53:42,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (1/1) ... [2022-11-21 16:53:43,780 INFO L138 Inliner]: procedures = 101, calls = 6643, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 21156 [2022-11-21 16:53:43,781 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:53:43,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:53:43,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:53:43,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:53:43,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (1/1) ... [2022-11-21 16:53:43,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (1/1) ... [2022-11-21 16:53:44,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (1/1) ... [2022-11-21 16:53:44,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (1/1) ... [2022-11-21 16:53:44,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (1/1) ... [2022-11-21 16:53:44,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (1/1) ... [2022-11-21 16:53:44,751 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (1/1) ... [2022-11-21 16:53:44,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (1/1) ... [2022-11-21 16:53:44,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:53:44,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:53:44,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:53:44,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:53:44,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (1/1) ... [2022-11-21 16:53:44,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:53:44,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:53:44,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:53:44,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5749876-beb4-4725-9ca8-974468e914f0/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:53:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_state [2022-11-21 16:53:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_state [2022-11-21 16:53:44,973 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_state [2022-11-21 16:53:44,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_state [2022-11-21 16:53:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:53:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_run_nxtbg [2022-11-21 16:53:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_run_nxtbg [2022-11-21 16:53:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2022-11-21 16:53:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2022-11-21 16:53:44,974 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2022-11-21 16:53:44,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2022-11-21 16:53:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_input [2022-11-21 16:53:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_input [2022-11-21 16:53:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure bg_nxtcolorsensor [2022-11-21 16:53:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure bg_nxtcolorsensor [2022-11-21 16:53:44,975 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Writer [2022-11-21 16:53:44,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Writer [2022-11-21 16:53:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_mode [2022-11-21 16:53:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_mode [2022-11-21 16:53:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:53:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2022-11-21 16:53:44,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2022-11-21 16:53:44,976 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_count [2022-11-21 16:53:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_count [2022-11-21 16:53:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_state [2022-11-21 16:53:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_state [2022-11-21 16:53:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_output [2022-11-21 16:53:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_output [2022-11-21 16:53:44,977 INFO L130 BoogieDeclarations]: Found specification of procedure move_motor [2022-11-21 16:53:44,977 INFO L138 BoogieDeclarations]: Found implementation of procedure move_motor [2022-11-21 16:53:44,978 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_speed [2022-11-21 16:53:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_speed [2022-11-21 16:53:44,979 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2022-11-21 16:53:44,979 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2022-11-21 16:53:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:53:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2022-11-21 16:53:44,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2022-11-21 16:53:44,981 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_set_nxtcolorsensor [2022-11-21 16:53:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_set_nxtcolorsensor [2022-11-21 16:53:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t3 [2022-11-21 16:53:44,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t3 [2022-11-21 16:53:44,982 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_output [2022-11-21 16:53:44,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_output [2022-11-21 16:53:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2022-11-21 16:53:44,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2022-11-21 16:53:44,984 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_T_count [2022-11-21 16:53:44,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_T_count [2022-11-21 16:53:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2022-11-21 16:53:44,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2022-11-21 16:53:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure TerminateTask [2022-11-21 16:53:44,985 INFO L138 BoogieDeclarations]: Found implementation of procedure TerminateTask [2022-11-21 16:53:44,985 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_count [2022-11-21 16:53:44,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_count [2022-11-21 16:53:44,986 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2022-11-21 16:53:44,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2022-11-21 16:53:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_count [2022-11-21 16:53:44,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_count [2022-11-21 16:53:44,987 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_count [2022-11-21 16:53:44,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_count [2022-11-21 16:53:44,988 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_T_speed [2022-11-21 16:53:44,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_T_speed [2022-11-21 16:53:44,988 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-21 16:53:44,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtcolorsensor_data_mode [2022-11-21 16:53:44,989 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_threshold [2022-11-21 16:53:44,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_threshold [2022-11-21 16:53:44,989 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_need_to_read [2022-11-21 16:53:44,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_need_to_read [2022-11-21 16:53:44,989 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_state [2022-11-21 16:53:44,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_state [2022-11-21 16:53:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Reader [2022-11-21 16:53:44,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Reader [2022-11-21 16:53:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_dir [2022-11-21 16:53:44,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_dir [2022-11-21 16:53:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_W_speed [2022-11-21 16:53:44,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_W_speed [2022-11-21 16:53:44,990 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_input [2022-11-21 16:53:44,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_input [2022-11-21 16:53:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_R_state [2022-11-21 16:53:44,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_R_state [2022-11-21 16:53:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_W_state [2022-11-21 16:53:44,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_W_state [2022-11-21 16:53:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_R_count [2022-11-21 16:53:44,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_R_count [2022-11-21 16:53:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_TapeMover [2022-11-21 16:53:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_TapeMover [2022-11-21 16:53:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-21 16:53:44,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_nxtcolorsensor_mode [2022-11-21 16:53:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:53:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_Controller [2022-11-21 16:53:44,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_Controller [2022-11-21 16:53:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:53:44,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:53:46,563 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:53:46,569 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:55:11,558 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:55:11,596 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:55:11,596 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 16:55:11,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:55:11 BoogieIcfgContainer [2022-11-21 16:55:11,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:55:11,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:55:11,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:55:11,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:55:11,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:53:40" (1/3) ... [2022-11-21 16:55:11,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b88eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:55:11, skipping insertion in model container [2022-11-21 16:55:11,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:53:42" (2/3) ... [2022-11-21 16:55:11,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55b88eae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:55:11, skipping insertion in model container [2022-11-21 16:55:11,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:55:11" (3/3) ... [2022-11-21 16:55:11,616 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_ctm.2-1.c [2022-11-21 16:55:11,640 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:55:11,640 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:55:11,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:55:11,830 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;@1f0febf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:55:11,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:55:11,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 4809 states, 4424 states have (on average 1.5476943942133816) internal successors, (6847), 4448 states have internal predecessors, (6847), 340 states have call successors, (340), 43 states have call predecessors, (340), 43 states have return successors, (340), 330 states have call predecessors, (340), 340 states have call successors, (340) [2022-11-21 16:55:12,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1934 [2022-11-21 16:55:12,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:55:12,094 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:55:12,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:55:12,103 INFO L85 PathProgramCache]: Analyzing trace with hash -297338650, now seen corresponding path program 1 times [2022-11-21 16:55:12,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:55:12,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800941324] [2022-11-21 16:55:12,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:55:12,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms