./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF --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 0f0ab174a42b7a796a7aa603adc547f34b3ce1c3e6aa217a93d91e742ec00f62 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:32:35,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:32:35,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:32:35,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:32:35,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:32:35,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:32:35,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:32:35,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:32:35,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:32:35,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:32:35,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:32:35,194 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:32:35,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:32:35,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:32:35,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:32:35,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:32:35,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:32:35,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:32:35,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:32:35,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:32:35,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:32:35,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:32:35,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:32:35,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:32:35,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:32:35,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:32:35,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:32:35,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:32:35,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:32:35,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:32:35,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:32:35,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:32:35,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:32:35,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:32:35,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:32:35,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:32:35,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:32:35,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:32:35,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:32:35,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:32:35,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:32:35,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:32:35,260 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:32:35,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:32:35,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:32:35,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:32:35,261 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:32:35,261 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:32:35,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:32:35,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:32:35,262 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:32:35,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:32:35,263 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:32:35,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:32:35,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:32:35,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:32:35,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:32:35,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:32:35,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:32:35,264 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:32:35,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:32:35,265 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:32:35,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:32:35,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:32:35,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:32:35,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:32:35,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:32:35,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:32:35,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:32:35,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:32:35,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:32:35,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:32:35,267 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:32:35,267 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:32:35,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:32:35,267 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:32:35,268 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_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f0ab174a42b7a796a7aa603adc547f34b3ce1c3e6aa217a93d91e742ec00f62 [2021-11-20 06:32:35,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:32:35,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:32:35,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:32:35,644 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:32:35,644 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:32:35,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2021-11-20 06:32:35,724 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/data/a82f5c404/44bd128f550b4b54942b5ed87dabed0a/FLAG9f38ea4bf [2021-11-20 06:32:36,460 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:32:36,461 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c [2021-11-20 06:32:36,478 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/data/a82f5c404/44bd128f550b4b54942b5ed87dabed0a/FLAG9f38ea4bf [2021-11-20 06:32:36,717 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/data/a82f5c404/44bd128f550b4b54942b5ed87dabed0a [2021-11-20 06:32:36,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:32:36,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:32:36,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:32:36,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:32:36,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:32:36,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:32:36" (1/1) ... [2021-11-20 06:32:36,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9c4813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:36, skipping insertion in model container [2021-11-20 06:32:36,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:32:36" (1/1) ... [2021-11-20 06:32:36,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:32:36,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:32:37,081 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_58c8fae2-04b5-4895-ac8f-2e4203a654f4/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c[16202,16215] [2021-11-20 06:32:37,090 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:32:37,108 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:32:37,182 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_58c8fae2-04b5-4895-ac8f-2e4203a654f4/sv-benchmarks/c/product-lines/minepump_spec3_product11.cil.c[16202,16215] [2021-11-20 06:32:37,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:32:37,211 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:32:37,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37 WrapperNode [2021-11-20 06:32:37,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:32:37,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:32:37,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:32:37,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:32:37,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37" (1/1) ... [2021-11-20 06:32:37,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37" (1/1) ... [2021-11-20 06:32:37,283 INFO L137 Inliner]: procedures = 51, calls = 149, calls flagged for inlining = 21, calls inlined = 16, statements flattened = 199 [2021-11-20 06:32:37,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:32:37,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:32:37,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:32:37,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:32:37,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37" (1/1) ... [2021-11-20 06:32:37,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37" (1/1) ... [2021-11-20 06:32:37,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37" (1/1) ... [2021-11-20 06:32:37,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37" (1/1) ... [2021-11-20 06:32:37,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37" (1/1) ... [2021-11-20 06:32:37,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37" (1/1) ... [2021-11-20 06:32:37,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37" (1/1) ... [2021-11-20 06:32:37,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:32:37,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:32:37,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:32:37,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:32:37,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37" (1/1) ... [2021-11-20 06:32:37,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:32:37,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:32:37,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:32:37,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:32:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:32:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-20 06:32:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-20 06:32:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-20 06:32:37,421 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-20 06:32:37,421 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2021-11-20 06:32:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2021-11-20 06:32:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-20 06:32:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-20 06:32:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:32:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-20 06:32:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-20 06:32:37,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:32:37,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:32:37,503 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:32:37,505 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:32:37,794 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:32:37,801 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:32:37,817 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 06:32:37,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:32:37 BoogieIcfgContainer [2021-11-20 06:32:37,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:32:37,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:32:37,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:32:37,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:32:37,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:32:36" (1/3) ... [2021-11-20 06:32:37,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514234b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:32:37, skipping insertion in model container [2021-11-20 06:32:37,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:32:37" (2/3) ... [2021-11-20 06:32:37,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@514234b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:32:37, skipping insertion in model container [2021-11-20 06:32:37,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:32:37" (3/3) ... [2021-11-20 06:32:37,828 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product11.cil.c [2021-11-20 06:32:37,845 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:32:37,845 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:32:37,912 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:32:37,922 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 [2021-11-20 06:32:37,922 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:32:37,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 58 states have internal predecessors, (75), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-20 06:32:37,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-20 06:32:37,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:37,964 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] [2021-11-20 06:32:37,964 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:37,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:37,975 INFO L85 PathProgramCache]: Analyzing trace with hash -756762103, now seen corresponding path program 1 times [2021-11-20 06:32:37,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:37,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291005872] [2021-11-20 06:32:37,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:37,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:38,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 06:32:38,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:38,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:38,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:32:38,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291005872] [2021-11-20 06:32:38,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291005872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:32:38,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:32:38,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:32:38,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142140555] [2021-11-20 06:32:38,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:38,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:32:38,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:32:38,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:32:38,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:32:38,394 INFO L87 Difference]: Start difference. First operand has 68 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 58 states have internal predecessors, (75), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:32:38,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:32:38,455 INFO L93 Difference]: Finished difference Result 128 states and 173 transitions. [2021-11-20 06:32:38,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:32:38,457 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2021-11-20 06:32:38,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:32:38,467 INFO L225 Difference]: With dead ends: 128 [2021-11-20 06:32:38,467 INFO L226 Difference]: Without dead ends: 59 [2021-11-20 06:32:38,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:32:38,481 INFO L933 BasicCegarLoop]: 83 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, 83 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 [2021-11-20 06:32:38,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:32:38,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-11-20 06:32:38,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-11-20 06:32:38,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.297872340425532) internal successors, (61), 50 states have internal predecessors, (61), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-11-20 06:32:38,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2021-11-20 06:32:38,542 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 25 [2021-11-20 06:32:38,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:32:38,543 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2021-11-20 06:32:38,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:32:38,544 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2021-11-20 06:32:38,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-20 06:32:38,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:38,549 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] [2021-11-20 06:32:38,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:32:38,550 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:38,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:38,551 INFO L85 PathProgramCache]: Analyzing trace with hash 2085076679, now seen corresponding path program 1 times [2021-11-20 06:32:38,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:38,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99860214] [2021-11-20 06:32:38,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:38,552 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:38,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-11-20 06:32:38,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:38,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:38,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:32:38,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99860214] [2021-11-20 06:32:38,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99860214] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:32:38,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:32:38,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:32:38,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827353041] [2021-11-20 06:32:38,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:38,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:32:38,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:32:38,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:32:38,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:32:38,663 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:32:38,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:32:38,687 INFO L93 Difference]: Finished difference Result 80 states and 99 transitions. [2021-11-20 06:32:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:32:38,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-11-20 06:32:38,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:32:38,692 INFO L225 Difference]: With dead ends: 80 [2021-11-20 06:32:38,693 INFO L226 Difference]: Without dead ends: 50 [2021-11-20 06:32:38,695 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 [2021-11-20 06:32:38,696 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 17 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 101 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 [2021-11-20 06:32:38,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 101 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:32:38,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-20 06:32:38,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-20 06:32:38,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 44 states have internal predecessors, (54), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-20 06:32:38,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2021-11-20 06:32:38,705 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 26 [2021-11-20 06:32:38,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:32:38,705 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2021-11-20 06:32:38,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:32:38,705 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2021-11-20 06:32:38,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 06:32:38,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:38,707 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] [2021-11-20 06:32:38,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:32:38,707 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:38,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:38,708 INFO L85 PathProgramCache]: Analyzing trace with hash -247086690, now seen corresponding path program 1 times [2021-11-20 06:32:38,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:38,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781800174] [2021-11-20 06:32:38,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:38,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:38,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:38,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2021-11-20 06:32:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:38,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:38,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:32:38,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781800174] [2021-11-20 06:32:38,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781800174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:32:38,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:32:38,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:32:38,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731672462] [2021-11-20 06:32:38,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:38,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:32:38,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:32:38,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:32:38,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:32:38,819 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2021-11-20 06:32:39,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:32:39,014 INFO L93 Difference]: Finished difference Result 176 states and 227 transitions. [2021-11-20 06:32:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:32:39,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2021-11-20 06:32:39,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:32:39,018 INFO L225 Difference]: With dead ends: 176 [2021-11-20 06:32:39,018 INFO L226 Difference]: Without dead ends: 133 [2021-11-20 06:32:39,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:32:39,021 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 171 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:32:39,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 291 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:32:39,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-11-20 06:32:39,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 123. [2021-11-20 06:32:39,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 98 states have (on average 1.3571428571428572) internal successors, (133), 105 states have internal predecessors, (133), 12 states have call successors, (12), 12 states have call predecessors, (12), 12 states have return successors, (13), 12 states have call predecessors, (13), 12 states have call successors, (13) [2021-11-20 06:32:39,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 158 transitions. [2021-11-20 06:32:39,058 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 158 transitions. Word has length 30 [2021-11-20 06:32:39,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:32:39,058 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 158 transitions. [2021-11-20 06:32:39,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2021-11-20 06:32:39,058 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 158 transitions. [2021-11-20 06:32:39,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-20 06:32:39,060 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:39,060 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] [2021-11-20 06:32:39,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:32:39,061 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:39,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:39,061 INFO L85 PathProgramCache]: Analyzing trace with hash -457061233, now seen corresponding path program 1 times [2021-11-20 06:32:39,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:39,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980883100] [2021-11-20 06:32:39,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:39,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:32:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:39,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:39,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:32:39,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980883100] [2021-11-20 06:32:39,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980883100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:32:39,177 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:32:39,177 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:32:39,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499247353] [2021-11-20 06:32:39,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:39,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:32:39,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:32:39,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:32:39,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:32:39,180 INFO L87 Difference]: Start difference. First operand 123 states and 158 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-11-20 06:32:39,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:32:39,242 INFO L93 Difference]: Finished difference Result 347 states and 465 transitions. [2021-11-20 06:32:39,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:32:39,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2021-11-20 06:32:39,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:32:39,246 INFO L225 Difference]: With dead ends: 347 [2021-11-20 06:32:39,246 INFO L226 Difference]: Without dead ends: 231 [2021-11-20 06:32:39,248 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 [2021-11-20 06:32:39,250 INFO L933 BasicCegarLoop]: 64 mSDtfsCounter, 35 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:32:39,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 239 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:32:39,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-20 06:32:39,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 222. [2021-11-20 06:32:39,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 176 states have (on average 1.3295454545454546) internal successors, (234), 186 states have internal predecessors, (234), 24 states have call successors, (24), 24 states have call predecessors, (24), 21 states have return successors, (30), 21 states have call predecessors, (30), 24 states have call successors, (30) [2021-11-20 06:32:39,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 288 transitions. [2021-11-20 06:32:39,287 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 288 transitions. Word has length 31 [2021-11-20 06:32:39,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:32:39,287 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 288 transitions. [2021-11-20 06:32:39,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2021-11-20 06:32:39,287 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 288 transitions. [2021-11-20 06:32:39,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-20 06:32:39,290 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:39,290 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] [2021-11-20 06:32:39,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:32:39,291 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:39,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:39,291 INFO L85 PathProgramCache]: Analyzing trace with hash -372054006, now seen corresponding path program 1 times [2021-11-20 06:32:39,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:39,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959465487] [2021-11-20 06:32:39,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:39,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:39,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:39,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-20 06:32:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:32:39,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:32:39,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:32:39,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959465487] [2021-11-20 06:32:39,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959465487] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:32:39,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:32:39,392 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:32:39,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984932541] [2021-11-20 06:32:39,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:32:39,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:32:39,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:32:39,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:32:39,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:32:39,395 INFO L87 Difference]: Start difference. First operand 222 states and 288 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-20 06:32:39,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:32:39,421 INFO L93 Difference]: Finished difference Result 395 states and 519 transitions. [2021-11-20 06:32:39,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:32:39,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 33 [2021-11-20 06:32:39,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:32:39,424 INFO L225 Difference]: With dead ends: 395 [2021-11-20 06:32:39,424 INFO L226 Difference]: Without dead ends: 211 [2021-11-20 06:32:39,427 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:32:39,429 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 53 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 [2021-11-20 06:32:39,429 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 53 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:32:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-11-20 06:32:39,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-11-20 06:32:39,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 165 states have (on average 1.284848484848485) internal successors, (212), 175 states have internal predecessors, (212), 24 states have call successors, (24), 24 states have call predecessors, (24), 21 states have return successors, (26), 21 states have call predecessors, (26), 24 states have call successors, (26) [2021-11-20 06:32:39,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 262 transitions. [2021-11-20 06:32:39,463 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 262 transitions. Word has length 33 [2021-11-20 06:32:39,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:32:39,471 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 262 transitions. [2021-11-20 06:32:39,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2021-11-20 06:32:39,471 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 262 transitions. [2021-11-20 06:32:39,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-20 06:32:39,473 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:32:39,474 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, 1, 1] [2021-11-20 06:32:39,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:32:39,474 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:32:39,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:32:39,475 INFO L85 PathProgramCache]: Analyzing trace with hash -531030615, now seen corresponding path program 1 times [2021-11-20 06:32:39,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:32:39,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451323442] [2021-11-20 06:32:39,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:32:39,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:32:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:32:39,508 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:32:39,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:32:39,574 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:32:39,574 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 06:32:39,575 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:32:39,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:32:39,581 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-20 06:32:39,584 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:32:39,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:32:39 BoogieIcfgContainer [2021-11-20 06:32:39,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:32:39,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:32:39,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:32:39,629 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:32:39,629 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:32:37" (3/4) ... [2021-11-20 06:32:39,631 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-20 06:32:39,699 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:32:39,699 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:32:39,700 INFO L158 Benchmark]: Toolchain (without parser) took 2978.64ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 72.4MB in the beginning and 86.2MB in the end (delta: -13.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-11-20 06:32:39,701 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 109.1MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:32:39,701 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.74ms. Allocated memory is still 109.1MB. Free memory was 72.3MB in the beginning and 76.6MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:32:39,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.88ms. Allocated memory is still 109.1MB. Free memory was 76.6MB in the beginning and 74.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:32:39,702 INFO L158 Benchmark]: Boogie Preprocessor took 50.84ms. Allocated memory is still 109.1MB. Free memory was 74.5MB in the beginning and 72.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:32:39,703 INFO L158 Benchmark]: RCFGBuilder took 483.64ms. Allocated memory is still 109.1MB. Free memory was 72.9MB in the beginning and 58.6MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-20 06:32:39,703 INFO L158 Benchmark]: TraceAbstraction took 1806.63ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 57.8MB in the beginning and 90.3MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:32:39,704 INFO L158 Benchmark]: Witness Printer took 71.04ms. Allocated memory is still 136.3MB. Free memory was 90.3MB in the beginning and 86.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 06:32:39,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 109.1MB. Free memory is still 89.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 486.74ms. Allocated memory is still 109.1MB. Free memory was 72.3MB in the beginning and 76.6MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.88ms. Allocated memory is still 109.1MB. Free memory was 76.6MB in the beginning and 74.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.84ms. Allocated memory is still 109.1MB. Free memory was 74.5MB in the beginning and 72.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.64ms. Allocated memory is still 109.1MB. Free memory was 72.9MB in the beginning and 58.6MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1806.63ms. Allocated memory was 109.1MB in the beginning and 136.3MB in the end (delta: 27.3MB). Free memory was 57.8MB in the beginning and 90.3MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 71.04ms. Allocated memory is still 136.3MB. Free memory was 90.3MB in the beginning and 86.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - CounterExampleResult [Line: 809]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L88] int cleanupTimeShifts = 4; [L396] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L169] int retValue_acc ; [L170] int tmp ; [L174] FCALL select_helpers() [L175] FCALL select_features() [L176] CALL, EXPR valid_product() [L218] int retValue_acc ; [L221] retValue_acc = 1 [L222] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L176] RET, EXPR valid_product() [L176] tmp = valid_product() [L178] COND TRUE \read(tmp) [L180] FCALL setup() [L181] CALL runTest() [L160] CALL test() [L739] int splverifierCounter ; [L740] int tmp ; [L741] int tmp___0 ; [L742] int tmp___1 ; [L743] int tmp___2 ; [L746] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L748] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L750] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L756] tmp = __VERIFIER_nondet_int() [L758] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L760] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] COND TRUE waterLevel < 2 [L833] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L760] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L766] tmp___0 = __VERIFIER_nondet_int() [L768] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L776] tmp___2 = __VERIFIER_nondet_int() [L778] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L793] CALL timeShift() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L605] COND FALSE !(\read(pumpRunning)) VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] COND TRUE \read(systemActive) [L614] FCALL processEnvironment() [L620] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] CALL, EXPR isMethaneLevelCritical() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] return (retValue_acc); VAL [\old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L61] RET, EXPR isMethaneLevelCritical() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] return (retValue_acc); VAL [\old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND TRUE tmp___0 == 2 [L71] CALL, EXPR isPumpRunning() [L678] int retValue_acc ; [L681] retValue_acc = pumpRunning [L682] return (retValue_acc); VAL [\old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L71] RET, EXPR isPumpRunning() [L71] tmp___1 = isPumpRunning() [L73] COND FALSE !(\read(tmp___1)) [L77] CALL __automaton_fail() [L809] reach_error() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 266 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 263 mSDsluCounter, 767 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 441 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 326 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 19 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-20 06:32:39,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58c8fae2-04b5-4895-ac8f-2e4203a654f4/bin/uautomizer-DQz5hQGWxF/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE