./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa --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 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 23:13:32,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 23:13:32,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 23:13:32,157 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 23:13:32,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 23:13:32,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 23:13:32,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 23:13:32,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 23:13:32,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 23:13:32,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 23:13:32,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 23:13:32,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 23:13:32,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 23:13:32,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 23:13:32,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 23:13:32,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 23:13:32,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 23:13:32,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 23:13:32,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 23:13:32,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 23:13:32,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 23:13:32,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 23:13:32,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 23:13:32,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 23:13:32,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 23:13:32,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 23:13:32,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 23:13:32,187 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 23:13:32,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 23:13:32,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 23:13:32,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 23:13:32,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 23:13:32,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 23:13:32,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 23:13:32,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 23:13:32,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 23:13:32,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 23:13:32,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 23:13:32,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 23:13:32,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 23:13:32,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 23:13:32,194 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 23:13:32,218 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 23:13:32,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 23:13:32,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 23:13:32,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 23:13:32,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 23:13:32,220 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 23:13:32,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 23:13:32,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 23:13:32,221 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 23:13:32,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 23:13:32,221 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 23:13:32,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 23:13:32,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 23:13:32,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 23:13:32,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 23:13:32,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 23:13:32,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 23:13:32,223 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 23:13:32,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 23:13:32,223 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 23:13:32,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 23:13:32,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 23:13:32,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 23:13:32,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 23:13:32,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:13:32,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 23:13:32,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 23:13:32,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 23:13:32,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 23:13:32,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 23:13:32,225 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 23:13:32,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 23:13:32,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 23:13:32,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 23:13:32,226 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_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d [2021-12-06 23:13:32,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 23:13:32,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 23:13:32,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 23:13:32,440 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 23:13:32,441 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 23:13:32,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2021-12-06 23:13:32,488 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/data/4b00f70db/3e369532c3cc4f11bf2eec3076c7834d/FLAG0f4c4394a [2021-12-06 23:13:32,908 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 23:13:32,908 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2021-12-06 23:13:32,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/data/4b00f70db/3e369532c3cc4f11bf2eec3076c7834d/FLAG0f4c4394a [2021-12-06 23:13:32,927 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/data/4b00f70db/3e369532c3cc4f11bf2eec3076c7834d [2021-12-06 23:13:32,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 23:13:32,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 23:13:32,931 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 23:13:32,931 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 23:13:32,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 23:13:32,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:13:32" (1/1) ... [2021-12-06 23:13:32,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ee526ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:32, skipping insertion in model container [2021-12-06 23:13:32,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 11:13:32" (1/1) ... [2021-12-06 23:13:32,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 23:13:32,967 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 23:13:33,134 WARN L230 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_54af80bd-8ef5-48be-990c-1aff56d39e5e/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2021-12-06 23:13:33,156 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:13:33,162 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 23:13:33,199 WARN L230 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_54af80bd-8ef5-48be-990c-1aff56d39e5e/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2021-12-06 23:13:33,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 23:13:33,222 INFO L208 MainTranslator]: Completed translation [2021-12-06 23:13:33,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33 WrapperNode [2021-12-06 23:13:33,223 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 23:13:33,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 23:13:33,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 23:13:33,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 23:13:33,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33" (1/1) ... [2021-12-06 23:13:33,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33" (1/1) ... [2021-12-06 23:13:33,258 INFO L137 Inliner]: procedures = 51, calls = 150, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 213 [2021-12-06 23:13:33,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 23:13:33,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 23:13:33,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 23:13:33,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 23:13:33,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33" (1/1) ... [2021-12-06 23:13:33,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33" (1/1) ... [2021-12-06 23:13:33,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33" (1/1) ... [2021-12-06 23:13:33,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33" (1/1) ... [2021-12-06 23:13:33,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33" (1/1) ... [2021-12-06 23:13:33,276 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33" (1/1) ... [2021-12-06 23:13:33,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33" (1/1) ... [2021-12-06 23:13:33,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 23:13:33,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 23:13:33,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 23:13:33,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 23:13:33,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33" (1/1) ... [2021-12-06 23:13:33,287 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 23:13:33,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 23:13:33,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 23:13:33,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 23:13:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 23:13:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-12-06 23:13:33,337 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-12-06 23:13:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-12-06 23:13:33,337 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-12-06 23:13:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-12-06 23:13:33,337 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-12-06 23:13:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-12-06 23:13:33,337 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-12-06 23:13:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-12-06 23:13:33,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-12-06 23:13:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 23:13:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-12-06 23:13:33,338 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-12-06 23:13:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 23:13:33,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 23:13:33,388 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 23:13:33,389 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 23:13:33,579 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 23:13:33,585 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 23:13:33,585 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 23:13:33,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:13:33 BoogieIcfgContainer [2021-12-06 23:13:33,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 23:13:33,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 23:13:33,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 23:13:33,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 23:13:33,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 11:13:32" (1/3) ... [2021-12-06 23:13:33,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c2f5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:13:33, skipping insertion in model container [2021-12-06 23:13:33,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 11:13:33" (2/3) ... [2021-12-06 23:13:33,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c2f5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 11:13:33, skipping insertion in model container [2021-12-06 23:13:33,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:13:33" (3/3) ... [2021-12-06 23:13:33,593 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product13.cil.c [2021-12-06 23:13:33,596 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 23:13:33,597 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 23:13:33,634 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 23:13:33,639 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 23:13:33,640 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 23:13:33,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 60 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-06 23:13:33,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-06 23:13:33,662 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:13:33,663 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:13:33,664 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:13:33,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:13:33,668 INFO L85 PathProgramCache]: Analyzing trace with hash -250715153, now seen corresponding path program 1 times [2021-12-06 23:13:33,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:13:33,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404170071] [2021-12-06 23:13:33,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:13:33,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:13:33,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:13:33,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:13:33,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:13:33,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404170071] [2021-12-06 23:13:33,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404170071] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:13:33,820 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:13:33,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:13:33,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022892648] [2021-12-06 23:13:33,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:13:33,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 23:13:33,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:13:33,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 23:13:33,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 23:13:33,848 INFO L87 Difference]: Start difference. First operand has 71 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 60 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:13:33,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:13:33,870 INFO L93 Difference]: Finished difference Result 134 states and 181 transitions. [2021-12-06 23:13:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 23:13:33,871 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-06 23:13:33,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:13:33,878 INFO L225 Difference]: With dead ends: 134 [2021-12-06 23:13:33,878 INFO L226 Difference]: Without dead ends: 62 [2021-12-06 23:13:33,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 23:13:33,884 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:13:33,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:13:33,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-06 23:13:33,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-12-06 23:13:33,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 47 states have (on average 1.297872340425532) internal successors, (61), 52 states have internal predecessors, (61), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-06 23:13:33,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2021-12-06 23:13:33,915 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 19 [2021-12-06 23:13:33,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:13:33,915 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2021-12-06 23:13:33,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:13:33,916 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2021-12-06 23:13:33,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-12-06 23:13:33,917 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:13:33,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:13:33,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 23:13:33,918 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:13:33,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:13:33,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1134572943, now seen corresponding path program 1 times [2021-12-06 23:13:33,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:13:33,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501135517] [2021-12-06 23:13:33,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:13:33,919 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:13:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:13:33,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:13:33,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:13:33,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501135517] [2021-12-06 23:13:33,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501135517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:13:33,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:13:33,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:13:33,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979297211] [2021-12-06 23:13:33,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:13:33,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:13:33,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:13:33,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:13:33,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:13:33,985 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:13:33,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:13:33,998 INFO L93 Difference]: Finished difference Result 90 states and 112 transitions. [2021-12-06 23:13:33,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:13:33,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-12-06 23:13:33,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:13:34,000 INFO L225 Difference]: With dead ends: 90 [2021-12-06 23:13:34,000 INFO L226 Difference]: Without dead ends: 53 [2021-12-06 23:13:34,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:13:34,003 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 12 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:13:34,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 114 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:13:34,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-12-06 23:13:34,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-12-06 23:13:34,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 46 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-06 23:13:34,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2021-12-06 23:13:34,012 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 20 [2021-12-06 23:13:34,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:13:34,013 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2021-12-06 23:13:34,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:13:34,013 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2021-12-06 23:13:34,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-06 23:13:34,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:13:34,014 INFO L514 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] [2021-12-06 23:13:34,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 23:13:34,015 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:13:34,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:13:34,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1568040948, now seen corresponding path program 1 times [2021-12-06 23:13:34,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:13:34,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643173893] [2021-12-06 23:13:34,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:13:34,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:13:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:13:34,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:13:34,077 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:13:34,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643173893] [2021-12-06 23:13:34,077 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643173893] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:13:34,077 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:13:34,077 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 23:13:34,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350191788] [2021-12-06 23:13:34,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:13:34,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:13:34,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:13:34,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:13:34,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:13:34,079 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:13:34,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:13:34,087 INFO L93 Difference]: Finished difference Result 99 states and 126 transitions. [2021-12-06 23:13:34,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:13:34,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-06 23:13:34,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:13:34,089 INFO L225 Difference]: With dead ends: 99 [2021-12-06 23:13:34,089 INFO L226 Difference]: Without dead ends: 53 [2021-12-06 23:13:34,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:13:34,090 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 48 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:13:34,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:13:34,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-12-06 23:13:34,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-12-06 23:13:34,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 46 states have internal predecessors, (53), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-06 23:13:34,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2021-12-06 23:13:34,098 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 24 [2021-12-06 23:13:34,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:13:34,098 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2021-12-06 23:13:34,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-06 23:13:34,098 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2021-12-06 23:13:34,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-06 23:13:34,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:13:34,099 INFO L514 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, 1, 1, 1] [2021-12-06 23:13:34,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-06 23:13:34,099 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:13:34,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:13:34,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1290700286, now seen corresponding path program 1 times [2021-12-06 23:13:34,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:13:34,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609484499] [2021-12-06 23:13:34,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:13:34,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:13:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:13:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-12-06 23:13:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:13:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:13:34,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:13:34,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609484499] [2021-12-06 23:13:34,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609484499] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:13:34,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:13:34,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-06 23:13:34,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393533555] [2021-12-06 23:13:34,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:13:34,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-06 23:13:34,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:13:34,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-06 23:13:34,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-06 23:13:34,159 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:13:34,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:13:34,207 INFO L93 Difference]: Finished difference Result 138 states and 178 transitions. [2021-12-06 23:13:34,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-06 23:13:34,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-12-06 23:13:34,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:13:34,210 INFO L225 Difference]: With dead ends: 138 [2021-12-06 23:13:34,210 INFO L226 Difference]: Without dead ends: 92 [2021-12-06 23:13:34,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-06 23:13:34,212 INFO L933 BasicCegarLoop]: 66 mSDtfsCounter, 38 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:13:34,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 253 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:13:34,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-12-06 23:13:34,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-12-06 23:13:34,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 78 states have internal predecessors, (90), 12 states have call successors, (12), 10 states have call predecessors, (12), 9 states have return successors, (13), 9 states have call predecessors, (13), 12 states have call successors, (13) [2021-12-06 23:13:34,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 115 transitions. [2021-12-06 23:13:34,231 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 115 transitions. Word has length 29 [2021-12-06 23:13:34,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:13:34,232 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 115 transitions. [2021-12-06 23:13:34,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:13:34,232 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 115 transitions. [2021-12-06 23:13:34,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-12-06 23:13:34,234 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:13:34,234 INFO L514 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, 1, 1, 1, 1, 1] [2021-12-06 23:13:34,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-06 23:13:34,234 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:13:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:13:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1148145597, now seen corresponding path program 1 times [2021-12-06 23:13:34,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:13:34,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719235671] [2021-12-06 23:13:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:13:34,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:13:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:13:34,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2021-12-06 23:13:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:13:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:13:34,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:13:34,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719235671] [2021-12-06 23:13:34,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719235671] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:13:34,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:13:34,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-06 23:13:34,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751598823] [2021-12-06 23:13:34,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:13:34,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 23:13:34,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:13:34,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 23:13:34,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:13:34,273 INFO L87 Difference]: Start difference. First operand 92 states and 115 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:13:34,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:13:34,284 INFO L93 Difference]: Finished difference Result 156 states and 199 transitions. [2021-12-06 23:13:34,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 23:13:34,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2021-12-06 23:13:34,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:13:34,286 INFO L225 Difference]: With dead ends: 156 [2021-12-06 23:13:34,286 INFO L226 Difference]: Without dead ends: 71 [2021-12-06 23:13:34,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 23:13:34,288 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:13:34,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:13:34,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-12-06 23:13:34,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-12-06 23:13:34,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 59 states have internal predecessors, (68), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-06 23:13:34,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2021-12-06 23:13:34,296 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 31 [2021-12-06 23:13:34,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:13:34,296 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2021-12-06 23:13:34,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-06 23:13:34,297 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2021-12-06 23:13:34,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-12-06 23:13:34,297 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 23:13:34,298 INFO L514 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, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 23:13:34,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 23:13:34,298 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 23:13:34,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 23:13:34,298 INFO L85 PathProgramCache]: Analyzing trace with hash 809516028, now seen corresponding path program 1 times [2021-12-06 23:13:34,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 23:13:34,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099913464] [2021-12-06 23:13:34,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 23:13:34,299 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 23:13:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:13:34,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-06 23:13:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:13:34,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-06 23:13:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 23:13:34,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 23:13:34,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 23:13:34,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099913464] [2021-12-06 23:13:34,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099913464] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 23:13:34,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 23:13:34,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 23:13:34,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476212216] [2021-12-06 23:13:34,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 23:13:34,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 23:13:34,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 23:13:34,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 23:13:34,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-06 23:13:34,353 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 23:13:34,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 23:13:34,403 INFO L93 Difference]: Finished difference Result 76 states and 89 transitions. [2021-12-06 23:13:34,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-06 23:13:34,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2021-12-06 23:13:34,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 23:13:34,404 INFO L225 Difference]: With dead ends: 76 [2021-12-06 23:13:34,404 INFO L226 Difference]: Without dead ends: 0 [2021-12-06 23:13:34,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 23:13:34,405 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 44 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 23:13:34,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 138 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 23:13:34,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-06 23:13:34,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-06 23:13:34,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-12-06 23:13:34,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-06 23:13:34,406 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-12-06 23:13:34,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 23:13:34,407 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-06 23:13:34,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-06 23:13:34,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-06 23:13:34,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-06 23:13:34,409 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 23:13:34,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-06 23:13:34,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-06 23:13:34,658 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: true [2021-12-06 23:13:34,658 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2021-12-06 23:13:34,658 INFO L858 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2021-12-06 23:13:34,658 INFO L858 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-12-06 23:13:34,658 INFO L854 garLoopResultBuilder]: At program point L696(line 696) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2021-12-06 23:13:34,659 INFO L854 garLoopResultBuilder]: At program point L696-1(lines 677 701) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2021-12-06 23:13:34,659 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 645 668) no Hoare annotation was computed. [2021-12-06 23:13:34,659 INFO L854 garLoopResultBuilder]: At program point L131(lines 126 134) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1))) [2021-12-06 23:13:34,659 INFO L854 garLoopResultBuilder]: At program point L507(lines 502 509) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2021-12-06 23:13:34,659 INFO L858 garLoopResultBuilder]: For program point L656-1(lines 656 662) no Hoare annotation was computed. [2021-12-06 23:13:34,659 INFO L854 garLoopResultBuilder]: At program point L751(lines 746 754) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2021-12-06 23:13:34,660 INFO L858 garLoopResultBuilder]: For program point L685(lines 685 693) no Hoare annotation was computed. [2021-12-06 23:13:34,660 INFO L858 garLoopResultBuilder]: For program point L524(lines 524 530) no Hoare annotation was computed. [2021-12-06 23:13:34,660 INFO L858 garLoopResultBuilder]: For program point L681(lines 681 698) no Hoare annotation was computed. [2021-12-06 23:13:34,660 INFO L858 garLoopResultBuilder]: For program point L520(lines 520 533) no Hoare annotation was computed. [2021-12-06 23:13:34,660 INFO L854 garLoopResultBuilder]: At program point L520-1(lines 512 536) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2021-12-06 23:13:34,660 INFO L858 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2021-12-06 23:13:34,661 INFO L854 garLoopResultBuilder]: At program point L62-2(lines 58 69) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2021-12-06 23:13:34,661 INFO L858 garLoopResultBuilder]: For program point L649-1(lines 648 667) no Hoare annotation was computed. [2021-12-06 23:13:34,661 INFO L854 garLoopResultBuilder]: At program point L732(lines 727 734) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2021-12-06 23:13:34,661 INFO L854 garLoopResultBuilder]: At program point L691(line 691) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2021-12-06 23:13:34,661 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 645 668) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2021-12-06 23:13:34,661 INFO L854 garLoopResultBuilder]: At program point L683(line 683) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2021-12-06 23:13:34,662 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 645 668) no Hoare annotation was computed. [2021-12-06 23:13:34,662 INFO L858 garLoopResultBuilder]: For program point L683-1(line 683) no Hoare annotation was computed. [2021-12-06 23:13:34,662 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 506) no Hoare annotation was computed. [2021-12-06 23:13:34,662 INFO L858 garLoopResultBuilder]: For program point L546-1(line 546) no Hoare annotation was computed. [2021-12-06 23:13:34,662 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 540 569) no Hoare annotation was computed. [2021-12-06 23:13:34,662 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 540 569) the Hoare annotation is: true [2021-12-06 23:13:34,663 INFO L861 garLoopResultBuilder]: At program point L565(lines 540 569) the Hoare annotation is: true [2021-12-06 23:13:34,663 INFO L858 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2021-12-06 23:13:34,663 INFO L858 garLoopResultBuilder]: For program point L554(lines 554 558) no Hoare annotation was computed. [2021-12-06 23:13:34,663 INFO L861 garLoopResultBuilder]: At program point L554-1(lines 554 558) the Hoare annotation is: true [2021-12-06 23:13:34,663 INFO L858 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-12-06 23:13:34,663 INFO L861 garLoopResultBuilder]: At program point L550-2(lines 550 564) the Hoare annotation is: true [2021-12-06 23:13:34,663 INFO L861 garLoopResultBuilder]: At program point L546(line 546) the Hoare annotation is: true [2021-12-06 23:13:34,664 INFO L858 garLoopResultBuilder]: For program point L832(lines 832 843) no Hoare annotation was computed. [2021-12-06 23:13:34,664 INFO L854 garLoopResultBuilder]: At program point L824(line 824) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-06 23:13:34,664 INFO L858 garLoopResultBuilder]: For program point L626(lines 626 633) no Hoare annotation was computed. [2021-12-06 23:13:34,664 INFO L858 garLoopResultBuilder]: For program point L626-2(lines 626 633) no Hoare annotation was computed. [2021-12-06 23:13:34,664 INFO L854 garLoopResultBuilder]: At program point L845(lines 802 847) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-06 23:13:34,664 INFO L858 garLoopResultBuilder]: For program point L812(lines 812 818) no Hoare annotation was computed. [2021-12-06 23:13:34,665 INFO L858 garLoopResultBuilder]: For program point L812-1(lines 812 818) no Hoare annotation was computed. [2021-12-06 23:13:34,665 INFO L858 garLoopResultBuilder]: For program point L804(lines 804 808) no Hoare annotation was computed. [2021-12-06 23:13:34,665 INFO L861 garLoopResultBuilder]: At program point L610(lines 603 612) the Hoare annotation is: true [2021-12-06 23:13:34,665 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-06 23:13:34,665 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-06 23:13:34,665 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-06 23:13:34,665 INFO L861 garLoopResultBuilder]: At program point L635(lines 616 638) the Hoare annotation is: true [2021-12-06 23:13:34,666 INFO L854 garLoopResultBuilder]: At program point L887(lines 882 890) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 23:13:34,666 INFO L854 garLoopResultBuilder]: At program point L879(lines 875 881) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 23:13:34,666 INFO L858 garLoopResultBuilder]: For program point L838(lines 838 842) no Hoare annotation was computed. [2021-12-06 23:13:34,666 INFO L854 garLoopResultBuilder]: At program point L838-2(lines 832 843) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-06 23:13:34,666 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-06 23:13:34,666 INFO L854 garLoopResultBuilder]: At program point L599(lines 595 601) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 23:13:34,667 INFO L858 garLoopResultBuilder]: For program point L822(lines 822 828) no Hoare annotation was computed. [2021-12-06 23:13:34,667 INFO L858 garLoopResultBuilder]: For program point L822-1(lines 822 828) no Hoare annotation was computed. [2021-12-06 23:13:34,667 INFO L861 garLoopResultBuilder]: At program point L851(lines 792 855) the Hoare annotation is: true [2021-12-06 23:13:34,667 INFO L854 garLoopResultBuilder]: At program point L814(line 814) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2021-12-06 23:13:34,667 INFO L854 garLoopResultBuilder]: At program point L872(lines 868 874) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-12-06 23:13:34,667 INFO L854 garLoopResultBuilder]: At program point L848(lines 801 849) the Hoare annotation is: false [2021-12-06 23:13:34,668 INFO L858 garLoopResultBuilder]: For program point L803(lines 802 847) no Hoare annotation was computed. [2021-12-06 23:13:34,668 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2021-12-06 23:13:34,668 INFO L858 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2021-12-06 23:13:34,668 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2021-12-06 23:13:34,668 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 669 675) no Hoare annotation was computed. [2021-12-06 23:13:34,668 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 669 675) the Hoare annotation is: true [2021-12-06 23:13:34,669 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 735 745) the Hoare annotation is: true [2021-12-06 23:13:34,669 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 735 745) no Hoare annotation was computed. [2021-12-06 23:13:34,669 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 735 745) no Hoare annotation was computed. [2021-12-06 23:13:34,669 INFO L861 garLoopResultBuilder]: At program point L99(lines 94 102) the Hoare annotation is: true [2021-12-06 23:13:34,672 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-12-06 23:13:34,674 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 23:13:34,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 11:13:34 BoogieIcfgContainer [2021-12-06 23:13:34,691 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 23:13:34,692 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 23:13:34,692 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 23:13:34,692 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 23:13:34,692 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 11:13:33" (3/4) ... [2021-12-06 23:13:34,695 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-06 23:13:34,701 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-12-06 23:13:34,701 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-12-06 23:13:34,701 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-12-06 23:13:34,701 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-12-06 23:13:34,702 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-12-06 23:13:34,702 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-12-06 23:13:34,707 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2021-12-06 23:13:34,708 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-12-06 23:13:34,708 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-06 23:13:34,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-06 23:13:34,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-06 23:13:34,709 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 23:13:34,710 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-06 23:13:34,727 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2021-12-06 23:13:34,728 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive) [2021-12-06 23:13:34,728 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) [2021-12-06 23:13:34,728 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2021-12-06 23:13:34,729 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) [2021-12-06 23:13:34,729 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2021-12-06 23:13:34,729 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2021-12-06 23:13:34,752 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 23:13:34,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 23:13:34,753 INFO L158 Benchmark]: Toolchain (without parser) took 1822.59ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 79.3MB in the beginning and 96.6MB in the end (delta: -17.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-12-06 23:13:34,753 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 23:13:34,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 291.69ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 86.5MB in the end (delta: -7.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-06 23:13:34,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.26ms. Allocated memory is still 117.4MB. Free memory was 86.5MB in the beginning and 83.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:13:34,754 INFO L158 Benchmark]: Boogie Preprocessor took 20.36ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 82.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 23:13:34,754 INFO L158 Benchmark]: RCFGBuilder took 306.33ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 67.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-06 23:13:34,754 INFO L158 Benchmark]: TraceAbstraction took 1103.45ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 67.2MB in the beginning and 102.9MB in the end (delta: -35.7MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2021-12-06 23:13:34,755 INFO L158 Benchmark]: Witness Printer took 60.69ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 96.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 23:13:34,756 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 96.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 291.69ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 86.5MB in the end (delta: -7.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.26ms. Allocated memory is still 117.4MB. Free memory was 86.5MB in the beginning and 83.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.36ms. Allocated memory is still 117.4MB. Free memory was 83.9MB in the beginning and 82.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.33ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 67.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1103.45ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 67.2MB in the beginning and 102.9MB in the end (delta: -35.7MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Witness Printer took 60.69ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 96.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 506]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 179 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 175 mSDsluCounter, 702 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 331 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 371 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 183 PreInvPairs, 205 NumberOfFragments, 301 HoareAnnotationTreeSize, 183 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 33 FomulaSimplificationsInter, 390 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 156 NumberOfCodeBlocks, 156 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive) - InvariantResult [Line: 875]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 595]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 727]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 746]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 868]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2021-12-06 23:13:34,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54af80bd-8ef5-48be-990c-1aff56d39e5e/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE