./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be --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 cbf45a1115fd10e0de4fb28135afee6c1ce9b70ee1cd8750ed2615e2a15c1223 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:01:54,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:01:54,752 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:01:54,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:01:54,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:01:54,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:01:54,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:01:54,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:01:54,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:01:54,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:01:54,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:01:54,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:01:54,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:01:54,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:01:54,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:01:54,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:01:54,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:01:54,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:01:54,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:01:54,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:01:54,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:01:54,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:01:54,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:01:54,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:01:54,846 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:01:54,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:01:54,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:01:54,856 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:01:54,856 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:01:54,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:01:54,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:01:54,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:01:54,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:01:54,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:01:54,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:01:54,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:01:54,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:01:54,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:01:54,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:01:54,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:01:54,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:01:54,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:01:54,913 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:01:54,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:01:54,914 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:01:54,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:01:54,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:01:54,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:01:54,923 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:01:54,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:01:54,923 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:01:54,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:01:54,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:01:54,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:01:54,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:01:54,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:01:54,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:01:54,926 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:01:54,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:01:54,926 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:01:54,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:01:54,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:01:54,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:01:54,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:01:54,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:01:54,928 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:01:54,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:01:54,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:01:54,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:01:54,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:01:54,929 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:01:54,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:01:54,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:01:54,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:01:54,931 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_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbf45a1115fd10e0de4fb28135afee6c1ce9b70ee1cd8750ed2615e2a15c1223 [2021-10-21 20:01:55,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:01:55,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:01:55,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:01:55,250 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:01:55,251 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:01:55,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2021-10-21 20:01:55,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/data/5e44d1b35/1a3165b97f9244678c383fe1c6a2c6ea/FLAG1e9a407f0 [2021-10-21 20:01:55,789 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:01:55,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c [2021-10-21 20:01:55,803 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/data/5e44d1b35/1a3165b97f9244678c383fe1c6a2c6ea/FLAG1e9a407f0 [2021-10-21 20:01:56,153 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/data/5e44d1b35/1a3165b97f9244678c383fe1c6a2c6ea [2021-10-21 20:01:56,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:01:56,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:01:56,165 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:01:56,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:01:56,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:01:56,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@270821f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56, skipping insertion in model container [2021-10-21 20:01:56,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:01:56,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:01:56,558 WARN L228 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_f8f3bec2-c643-4857-a3f6-ab5eb054a818/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c[12671,12684] [2021-10-21 20:01:56,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:01:56,635 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:01:56,714 WARN L228 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_f8f3bec2-c643-4857-a3f6-ab5eb054a818/sv-benchmarks/c/product-lines/minepump_spec3_product17.cil.c[12671,12684] [2021-10-21 20:01:56,753 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:01:56,779 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:01:56,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56 WrapperNode [2021-10-21 20:01:56,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:01:56,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:01:56,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:01:56,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:01:56,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:01:56,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:01:56,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:01:56,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:01:56,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:01:56,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:01:56,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:01:56,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:01:56,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56" (1/1) ... [2021-10-21 20:01:56,978 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:01:56,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:01:57,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:01:57,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:01:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:01:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:01:57,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:01:57,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:01:58,030 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:01:58,030 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-21 20:01:58,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:01:58 BoogieIcfgContainer [2021-10-21 20:01:58,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:01:58,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:01:58,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:01:58,050 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:01:58,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:01:56" (1/3) ... [2021-10-21 20:01:58,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680d0a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:01:58, skipping insertion in model container [2021-10-21 20:01:58,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:01:56" (2/3) ... [2021-10-21 20:01:58,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680d0a7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:01:58, skipping insertion in model container [2021-10-21 20:01:58,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:01:58" (3/3) ... [2021-10-21 20:01:58,053 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2021-10-21 20:01:58,059 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:01:58,059 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-21 20:01:58,100 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:01:58,106 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-21 20:01:58,106 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-21 20:01:58,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 77 states have (on average 1.5584415584415585) internal successors, (120), 80 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:58,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 20:01:58,129 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:01:58,130 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:58,131 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:01:58,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:58,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1940604754, now seen corresponding path program 1 times [2021-10-21 20:01:58,145 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:58,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400327467] [2021-10-21 20:01:58,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:58,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:58,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:58,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:58,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400327467] [2021-10-21 20:01:58,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400327467] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:58,428 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:58,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:01:58,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597205033] [2021-10-21 20:01:58,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 20:01:58,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:58,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:01:58,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:01:58,451 INFO L87 Difference]: Start difference. First operand has 81 states, 77 states have (on average 1.5584415584415585) internal successors, (120), 80 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:58,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:58,486 INFO L93 Difference]: Finished difference Result 156 states and 233 transitions. [2021-10-21 20:01:58,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:01:58,487 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-21 20:01:58,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:01:58,501 INFO L225 Difference]: With dead ends: 156 [2021-10-21 20:01:58,501 INFO L226 Difference]: Without dead ends: 77 [2021-10-21 20:01:58,505 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:01:58,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-10-21 20:01:58,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-10-21 20:01:58,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 74 states have (on average 1.4594594594594594) internal successors, (108), 76 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:58,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2021-10-21 20:01:58,553 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 108 transitions. Word has length 18 [2021-10-21 20:01:58,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:01:58,554 INFO L470 AbstractCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-10-21 20:01:58,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:58,555 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 108 transitions. [2021-10-21 20:01:58,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-21 20:01:58,557 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:01:58,557 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:01:58,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:01:58,558 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:01:58,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:58,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1815937872, now seen corresponding path program 1 times [2021-10-21 20:01:58,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:58,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131266834] [2021-10-21 20:01:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:58,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:58,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:58,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:58,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:58,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131266834] [2021-10-21 20:01:58,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131266834] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:58,731 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:58,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:01:58,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297030662] [2021-10-21 20:01:58,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:01:58,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:58,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:01:58,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:01:58,734 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:58,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:58,750 INFO L93 Difference]: Finished difference Result 77 states and 108 transitions. [2021-10-21 20:01:58,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:01:58,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-10-21 20:01:58,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:01:58,753 INFO L225 Difference]: With dead ends: 77 [2021-10-21 20:01:58,753 INFO L226 Difference]: Without dead ends: 35 [2021-10-21 20:01:58,755 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:01:58,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-21 20:01:58,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-21 20:01:58,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 34 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:58,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2021-10-21 20:01:58,766 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 19 [2021-10-21 20:01:58,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:01:58,766 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2021-10-21 20:01:58,767 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:58,767 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2021-10-21 20:01:58,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 20:01:58,771 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:01:58,771 INFO L512 BasicCegarLoop]: 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] [2021-10-21 20:01:58,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:01:58,772 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:01:58,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:58,774 INFO L82 PathProgramCache]: Analyzing trace with hash -163835793, now seen corresponding path program 1 times [2021-10-21 20:01:58,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:58,775 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482432380] [2021-10-21 20:01:58,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:58,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:58,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:58,908 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482432380] [2021-10-21 20:01:58,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482432380] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:58,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:58,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:01:58,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662318393] [2021-10-21 20:01:58,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 20:01:58,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:58,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:01:58,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:01:58,916 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:59,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:59,105 INFO L93 Difference]: Finished difference Result 64 states and 92 transitions. [2021-10-21 20:01:59,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:01:59,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-10-21 20:01:59,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:01:59,107 INFO L225 Difference]: With dead ends: 64 [2021-10-21 20:01:59,107 INFO L226 Difference]: Without dead ends: 35 [2021-10-21 20:01:59,108 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:01:59,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-21 20:01:59,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2021-10-21 20:01:59,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.411764705882353) internal successors, (48), 34 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:59,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 48 transitions. [2021-10-21 20:01:59,116 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 48 transitions. Word has length 24 [2021-10-21 20:01:59,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:01:59,116 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 48 transitions. [2021-10-21 20:01:59,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:59,117 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 48 transitions. [2021-10-21 20:01:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-21 20:01:59,119 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:01:59,119 INFO L512 BasicCegarLoop]: 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] [2021-10-21 20:01:59,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 20:01:59,120 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:01:59,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:59,121 INFO L82 PathProgramCache]: Analyzing trace with hash 993963754, now seen corresponding path program 1 times [2021-10-21 20:01:59,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:59,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891281987] [2021-10-21 20:01:59,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:59,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:01:59,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:01:59,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:01:59,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891281987] [2021-10-21 20:01:59,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891281987] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:01:59,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:01:59,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-21 20:01:59,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907187334] [2021-10-21 20:01:59,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 20:01:59,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:01:59,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 20:01:59,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 20:01:59,251 INFO L87 Difference]: Start difference. First operand 35 states and 48 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:59,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:01:59,382 INFO L93 Difference]: Finished difference Result 172 states and 255 transitions. [2021-10-21 20:01:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 20:01:59,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-21 20:01:59,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:01:59,384 INFO L225 Difference]: With dead ends: 172 [2021-10-21 20:01:59,384 INFO L226 Difference]: Without dead ends: 143 [2021-10-21 20:01:59,385 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 41.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-21 20:01:59,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-10-21 20:01:59,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 60. [2021-10-21 20:01:59,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 59 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:59,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2021-10-21 20:01:59,396 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 25 [2021-10-21 20:01:59,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:01:59,396 INFO L470 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2021-10-21 20:01:59,397 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:01:59,397 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2021-10-21 20:01:59,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-21 20:01:59,398 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:01:59,398 INFO L512 BasicCegarLoop]: 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] [2021-10-21 20:01:59,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-21 20:01:59,399 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:01:59,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:01:59,399 INFO L82 PathProgramCache]: Analyzing trace with hash -965345236, now seen corresponding path program 1 times [2021-10-21 20:01:59,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:01:59,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896533832] [2021-10-21 20:01:59,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:01:59,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:01:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:59,486 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:01:59,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:01:59,620 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:01:59,621 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 20:01:59,622 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:01:59,623 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:01:59,624 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:01:59,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-21 20:01:59,630 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:01:59,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:01:59 BoogieIcfgContainer [2021-10-21 20:01:59,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:01:59,733 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:01:59,733 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:01:59,733 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:01:59,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:01:58" (3/4) ... [2021-10-21 20:01:59,735 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 20:01:59,827 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:01:59,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:01:59,829 INFO L168 Benchmark]: Toolchain (without parser) took 3666.64 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 60.1 MB in the beginning and 40.8 MB in the end (delta: 19.2 MB). Peak memory consumption was 44.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:59,829 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 100.7 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:01:59,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.88 ms. Allocated memory is still 100.7 MB. Free memory was 59.8 MB in the beginning and 66.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:59,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.23 ms. Allocated memory is still 100.7 MB. Free memory was 66.9 MB in the beginning and 63.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:59,830 INFO L168 Benchmark]: Boogie Preprocessor took 82.22 ms. Allocated memory is still 100.7 MB. Free memory was 63.7 MB in the beginning and 61.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:59,831 INFO L168 Benchmark]: RCFGBuilder took 1063.66 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 61.6 MB in the beginning and 90.9 MB in the end (delta: -29.3 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:59,831 INFO L168 Benchmark]: TraceAbstraction took 1698.09 ms. Allocated memory is still 127.9 MB. Free memory was 90.4 MB in the beginning and 52.4 MB in the end (delta: 38.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:59,832 INFO L168 Benchmark]: Witness Printer took 94.25 ms. Allocated memory is still 127.9 MB. Free memory was 52.4 MB in the beginning and 40.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:01:59,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 100.7 MB. Free memory is still 77.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 614.88 ms. Allocated memory is still 100.7 MB. Free memory was 59.8 MB in the beginning and 66.9 MB in the end (delta: -7.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 104.23 ms. Allocated memory is still 100.7 MB. Free memory was 66.9 MB in the beginning and 63.7 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.22 ms. Allocated memory is still 100.7 MB. Free memory was 63.7 MB in the beginning and 61.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1063.66 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 61.6 MB in the beginning and 90.9 MB in the end (delta: -29.3 MB). Peak memory consumption was 37.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1698.09 ms. Allocated memory is still 127.9 MB. Free memory was 90.4 MB in the beginning and 52.4 MB in the end (delta: 38.0 MB). Peak memory consumption was 39.0 MB. Max. memory is 16.1 GB. * Witness Printer took 94.25 ms. Allocated memory is still 127.9 MB. Free memory was 52.4 MB in the beginning and 40.8 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 516]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L592] int pumpRunning = 0; [L593] int systemActive = 1; [L745] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L821] int retValue_acc ; [L822] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] int retValue_acc ; [L873] retValue_acc = 1 [L874] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L828] tmp = valid_product() [L830] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L533] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L541] tmp = __VERIFIER_nondet_int() [L543] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L600] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L607] COND TRUE \read(systemActive) [L629] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L632] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L880] int tmp ; [L881] int tmp___0 ; [L882] int tmp___1 ; [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L886] tmp = isMethaneLevelCritical() [L888] COND FALSE !(\read(tmp)) [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L892] tmp___0 = getWaterLevel() [L894] COND TRUE tmp___0 == 2 [L681] int retValue_acc ; [L684] retValue_acc = pumpRunning [L685] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L896] tmp___1 = isPumpRunning() [L898] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L516] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - UnprovableResult [Line: 516]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 516]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 81 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 1530.1ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 19.1ms, AutomataDifference: 421.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 279 SDtfs, 369 SDslu, 185 SDs, 0 SdLazy, 48 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 180.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 96.9ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 63.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 83 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.7ms SsaConstructionTime, 311.9ms SatisfiabilityAnalysisTime, 358.9ms InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:01:59,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8f3bec2-c643-4857-a3f6-ab5eb054a818/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...