./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro --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 0dcc4ef6dcb698eb4a1aa5e679ef93d9117968bf5497c48d873f573e0e790860 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:40:52,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:40:52,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:40:52,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:40:52,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:40:52,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:40:52,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:40:52,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:40:52,198 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:40:52,199 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:40:52,200 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:40:52,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:40:52,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:40:52,203 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:40:52,204 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:40:52,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:40:52,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:40:52,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:40:52,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:40:52,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:40:52,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:40:52,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:40:52,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:40:52,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:40:52,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:40:52,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:40:52,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:40:52,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:40:52,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:40:52,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:40:52,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:40:52,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:40:52,227 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:40:52,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:40:52,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:40:52,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:40:52,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:40:52,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:40:52,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:40:52,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:40:52,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:40:52,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:40:52,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:40:52,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:40:52,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:40:52,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:40:52,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:40:52,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:40:52,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:40:52,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:40:52,270 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:40:52,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:40:52,270 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:40:52,271 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:40:52,271 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:40:52,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:40:52,272 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:40:52,272 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:40:52,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:40:52,272 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:40:52,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:40:52,273 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:40:52,273 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:40:52,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:40:52,274 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:40:52,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:40:52,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:40:52,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:40:52,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:40:52,276 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:40:52,276 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:40:52,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:40:52,277 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:40:52,277 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:40:52,277 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:40:52,277 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_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dcc4ef6dcb698eb4a1aa5e679ef93d9117968bf5497c48d873f573e0e790860 [2022-11-18 19:40:52,554 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:40:52,588 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:40:52,591 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:40:52,593 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:40:52,594 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:40:52,595 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2022-11-18 19:40:52,685 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/data/3d132d8a8/af62d4a2f71243f387f288895048ca9e/FLAG8ba9dd260 [2022-11-18 19:40:53,319 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:40:53,320 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c [2022-11-18 19:40:53,331 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/data/3d132d8a8/af62d4a2f71243f387f288895048ca9e/FLAG8ba9dd260 [2022-11-18 19:40:53,603 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/data/3d132d8a8/af62d4a2f71243f387f288895048ca9e [2022-11-18 19:40:53,606 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:40:53,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:40:53,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:40:53,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:40:53,617 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:40:53,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:40:53" (1/1) ... [2022-11-18 19:40:53,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2635aac1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:53, skipping insertion in model container [2022-11-18 19:40:53,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:40:53" (1/1) ... [2022-11-18 19:40:53,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:40:53,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:40:53,949 WARN L234 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_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c[1605,1618] [2022-11-18 19:40:54,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:40:54,102 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:40:54,117 WARN L234 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_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/sv-benchmarks/c/product-lines/minepump_spec4_product23.cil.c[1605,1618] [2022-11-18 19:40:54,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:40:54,226 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:40:54,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54 WrapperNode [2022-11-18 19:40:54,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:40:54,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:40:54,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:40:54,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:40:54,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (1/1) ... [2022-11-18 19:40:54,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (1/1) ... [2022-11-18 19:40:54,312 INFO L138 Inliner]: procedures = 54, calls = 99, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 192 [2022-11-18 19:40:54,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:40:54,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:40:54,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:40:54,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:40:54,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (1/1) ... [2022-11-18 19:40:54,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (1/1) ... [2022-11-18 19:40:54,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (1/1) ... [2022-11-18 19:40:54,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (1/1) ... [2022-11-18 19:40:54,351 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (1/1) ... [2022-11-18 19:40:54,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (1/1) ... [2022-11-18 19:40:54,373 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (1/1) ... [2022-11-18 19:40:54,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (1/1) ... [2022-11-18 19:40:54,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:40:54,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:40:54,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:40:54,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:40:54,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (1/1) ... [2022-11-18 19:40:54,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:40:54,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:40:54,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:40:54,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:40:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:40:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-18 19:40:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-18 19:40:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-18 19:40:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-18 19:40:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-18 19:40:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-18 19:40:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-18 19:40:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-18 19:40:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-18 19:40:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-11-18 19:40:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-18 19:40:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-18 19:40:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:40:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-18 19:40:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-18 19:40:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:40:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:40:54,552 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:40:54,555 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:40:54,884 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:40:54,892 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:40:54,892 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 19:40:54,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:40:54 BoogieIcfgContainer [2022-11-18 19:40:54,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:40:54,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:40:54,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:40:54,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:40:54,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:40:53" (1/3) ... [2022-11-18 19:40:54,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e15fd40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:40:54, skipping insertion in model container [2022-11-18 19:40:54,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:40:54" (2/3) ... [2022-11-18 19:40:54,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e15fd40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:40:54, skipping insertion in model container [2022-11-18 19:40:54,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:40:54" (3/3) ... [2022-11-18 19:40:54,930 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product23.cil.c [2022-11-18 19:40:54,983 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:40:54,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:40:55,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:40:55,110 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3fb33f72, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:40:55,110 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:40:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 64 states have (on average 1.390625) internal successors, (89), 73 states have internal predecessors, (89), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-18 19:40:55,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 19:40:55,130 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:55,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:55,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:40:55,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:55,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1885367060, now seen corresponding path program 1 times [2022-11-18 19:40:55,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:55,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473134700] [2022-11-18 19:40:55,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:55,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:55,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:55,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:55,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473134700] [2022-11-18 19:40:55,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473134700] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:55,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:55,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:55,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464844703] [2022-11-18 19:40:55,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:55,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:40:55,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:55,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:40:55,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:40:55,503 INFO L87 Difference]: Start difference. First operand has 86 states, 64 states have (on average 1.390625) internal successors, (89), 73 states have internal predecessors, (89), 13 states have call successors, (13), 7 states have call predecessors, (13), 7 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) 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) [2022-11-18 19:40:55,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:55,609 INFO L93 Difference]: Finished difference Result 164 states and 225 transitions. [2022-11-18 19:40:55,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:40:55,612 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 [2022-11-18 19:40:55,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:55,623 INFO L225 Difference]: With dead ends: 164 [2022-11-18 19:40:55,623 INFO L226 Difference]: Without dead ends: 77 [2022-11-18 19:40:55,628 INFO L412 NwaCegarLoop]: 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 [2022-11-18 19:40:55,632 INFO L413 NwaCegarLoop]: 109 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, 109 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 [2022-11-18 19:40:55,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:55,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-18 19:40:55,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-18 19:40:55,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 65 states have internal predecessors, (75), 13 states have call successors, (13), 7 states have call predecessors, (13), 6 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-18 19:40:55,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2022-11-18 19:40:55,706 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 19 [2022-11-18 19:40:55,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:55,706 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2022-11-18 19:40:55,707 INFO L496 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) [2022-11-18 19:40:55,707 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2022-11-18 19:40:55,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-18 19:40:55,711 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:55,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:55,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:40:55,712 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:40:55,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:55,715 INFO L85 PathProgramCache]: Analyzing trace with hash -633787630, now seen corresponding path program 1 times [2022-11-18 19:40:55,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:55,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598794482] [2022-11-18 19:40:55,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:55,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:55,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:55,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:55,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598794482] [2022-11-18 19:40:55,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598794482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:55,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:55,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:40:55,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072066761] [2022-11-18 19:40:55,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:55,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:55,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:55,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:55,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:55,879 INFO L87 Difference]: Start difference. First operand 77 states and 100 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) [2022-11-18 19:40:55,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:55,898 INFO L93 Difference]: Finished difference Result 116 states and 150 transitions. [2022-11-18 19:40:55,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:55,899 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 [2022-11-18 19:40:55,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:55,901 INFO L225 Difference]: With dead ends: 116 [2022-11-18 19:40:55,901 INFO L226 Difference]: Without dead ends: 68 [2022-11-18 19:40:55,902 INFO L412 NwaCegarLoop]: 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 [2022-11-18 19:40:55,903 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 16 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 153 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 [2022-11-18 19:40:55,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 153 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:55,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-18 19:40:55,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-18 19:40:55,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 59 states have internal predecessors, (68), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 6 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-18 19:40:55,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 88 transitions. [2022-11-18 19:40:55,915 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 88 transitions. Word has length 20 [2022-11-18 19:40:55,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:55,915 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 88 transitions. [2022-11-18 19:40:55,916 INFO L496 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) [2022-11-18 19:40:55,916 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2022-11-18 19:40:55,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 19:40:55,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:55,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:55,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:40:55,918 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:40:55,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:55,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1735953232, now seen corresponding path program 1 times [2022-11-18 19:40:55,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:55,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782857082] [2022-11-18 19:40:55,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:55,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:55,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:56,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:56,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782857082] [2022-11-18 19:40:56,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782857082] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:56,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:56,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:40:56,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599093033] [2022-11-18 19:40:56,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:56,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:56,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:56,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:56,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:56,142 INFO L87 Difference]: Start difference. First operand 68 states and 88 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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) [2022-11-18 19:40:56,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:56,458 INFO L93 Difference]: Finished difference Result 227 states and 301 transitions. [2022-11-18 19:40:56,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:56,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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 [2022-11-18 19:40:56,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:56,461 INFO L225 Difference]: With dead ends: 227 [2022-11-18 19:40:56,461 INFO L226 Difference]: Without dead ends: 166 [2022-11-18 19:40:56,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:40:56,464 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 234 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:56,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 388 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 19:40:56,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-18 19:40:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 160. [2022-11-18 19:40:56,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 137 states have internal predecessors, (163), 24 states have call successors, (24), 16 states have call predecessors, (24), 16 states have return successors, (25), 14 states have call predecessors, (25), 24 states have call successors, (25) [2022-11-18 19:40:56,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 212 transitions. [2022-11-18 19:40:56,491 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 212 transitions. Word has length 24 [2022-11-18 19:40:56,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:56,491 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 212 transitions. [2022-11-18 19:40:56,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 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) [2022-11-18 19:40:56,492 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 212 transitions. [2022-11-18 19:40:56,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-18 19:40:56,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:56,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:56,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:40:56,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:40:56,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:56,495 INFO L85 PathProgramCache]: Analyzing trace with hash -908810234, now seen corresponding path program 1 times [2022-11-18 19:40:56,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:56,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927215742] [2022-11-18 19:40:56,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:56,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:56,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:56,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:56,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927215742] [2022-11-18 19:40:56,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927215742] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:56,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:56,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:40:56,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384821963] [2022-11-18 19:40:56,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:56,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:40:56,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:56,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:40:56,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:40:56,629 INFO L87 Difference]: Start difference. First operand 160 states and 212 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-11-18 19:40:56,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:56,717 INFO L93 Difference]: Finished difference Result 449 states and 617 transitions. [2022-11-18 19:40:56,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:40:56,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 28 [2022-11-18 19:40:56,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:56,722 INFO L225 Difference]: With dead ends: 449 [2022-11-18 19:40:56,722 INFO L226 Difference]: Without dead ends: 296 [2022-11-18 19:40:56,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:40:56,725 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 60 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:56,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 353 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:56,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2022-11-18 19:40:56,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2022-11-18 19:40:56,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 218 states have (on average 1.348623853211009) internal successors, (294), 250 states have internal predecessors, (294), 48 states have call successors, (48), 32 states have call predecessors, (48), 29 states have return successors, (54), 25 states have call predecessors, (54), 48 states have call successors, (54) [2022-11-18 19:40:56,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 396 transitions. [2022-11-18 19:40:56,780 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 396 transitions. Word has length 28 [2022-11-18 19:40:56,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:56,781 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 396 transitions. [2022-11-18 19:40:56,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2022-11-18 19:40:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 396 transitions. [2022-11-18 19:40:56,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 19:40:56,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:56,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:56,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:40:56,785 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:40:56,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:56,786 INFO L85 PathProgramCache]: Analyzing trace with hash -89703733, now seen corresponding path program 1 times [2022-11-18 19:40:56,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:56,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853800430] [2022-11-18 19:40:56,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:56,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:56,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:56,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:56,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853800430] [2022-11-18 19:40:56,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853800430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:56,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:56,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:40:56,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393192471] [2022-11-18 19:40:56,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:56,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:40:56,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:56,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:40:56,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:40:56,869 INFO L87 Difference]: Start difference. First operand 296 states and 396 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2022-11-18 19:40:56,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:56,903 INFO L93 Difference]: Finished difference Result 504 states and 684 transitions. [2022-11-18 19:40:56,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:40:56,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 30 [2022-11-18 19:40:56,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:56,907 INFO L225 Difference]: With dead ends: 504 [2022-11-18 19:40:56,907 INFO L226 Difference]: Without dead ends: 215 [2022-11-18 19:40:56,909 INFO L412 NwaCegarLoop]: 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 [2022-11-18 19:40:56,911 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 38 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:56,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 53 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:40:56,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2022-11-18 19:40:56,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2022-11-18 19:40:56,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 161 states have (on average 1.2546583850931676) internal successors, (202), 171 states have internal predecessors, (202), 26 states have call successors, (26), 26 states have call predecessors, (26), 23 states have return successors, (28), 23 states have call predecessors, (28), 26 states have call successors, (28) [2022-11-18 19:40:56,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 256 transitions. [2022-11-18 19:40:56,939 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 256 transitions. Word has length 30 [2022-11-18 19:40:56,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:56,939 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 256 transitions. [2022-11-18 19:40:56,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2022-11-18 19:40:56,940 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 256 transitions. [2022-11-18 19:40:56,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-18 19:40:56,941 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:56,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:40:56,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:40:56,942 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:40:56,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:56,942 INFO L85 PathProgramCache]: Analyzing trace with hash 520035500, now seen corresponding path program 1 times [2022-11-18 19:40:56,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:40:56,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175397925] [2022-11-18 19:40:56,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:40:56,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:40:56,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:57,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 19:40:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:40:57,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:57,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:40:57,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175397925] [2022-11-18 19:40:57,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175397925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:40:57,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:40:57,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:40:57,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177651645] [2022-11-18 19:40:57,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:40:57,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:40:57,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:40:57,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:40:57,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:40:57,044 INFO L87 Difference]: Start difference. First operand 211 states and 256 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-11-18 19:40:57,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:57,186 INFO L93 Difference]: Finished difference Result 226 states and 272 transitions. [2022-11-18 19:40:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:40:57,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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 32 [2022-11-18 19:40:57,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:57,187 INFO L225 Difference]: With dead ends: 226 [2022-11-18 19:40:57,188 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 19:40:57,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 19:40:57,190 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 54 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:57,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 143 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:40:57,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 19:40:57,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 19:40:57,191 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) [2022-11-18 19:40:57,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 19:40:57,192 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2022-11-18 19:40:57,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:57,192 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 19:40:57,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-11-18 19:40:57,193 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 19:40:57,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 19:40:57,196 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 19:40:57,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:40:57,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 19:40:58,049 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 728 735) the Hoare annotation is: true [2022-11-18 19:40:58,049 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 728 735) no Hoare annotation was computed. [2022-11-18 19:40:58,049 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 728 735) no Hoare annotation was computed. [2022-11-18 19:40:58,049 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 661 667) no Hoare annotation was computed. [2022-11-18 19:40:58,049 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 661 667) the Hoare annotation is: true [2022-11-18 19:40:58,049 INFO L899 garLoopResultBuilder]: For program point L462-1(lines 458 469) no Hoare annotation was computed. [2022-11-18 19:40:58,049 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 458 469) the Hoare annotation is: true [2022-11-18 19:40:58,050 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 458 469) no Hoare annotation was computed. [2022-11-18 19:40:58,050 INFO L899 garLoopResultBuilder]: For program point L865(line 865) no Hoare annotation was computed. [2022-11-18 19:40:58,050 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 854 883) no Hoare annotation was computed. [2022-11-18 19:40:58,050 INFO L902 garLoopResultBuilder]: At program point L864-2(lines 864 878) the Hoare annotation is: true [2022-11-18 19:40:58,050 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 854 883) the Hoare annotation is: true [2022-11-18 19:40:58,050 INFO L902 garLoopResultBuilder]: At program point L860(line 860) the Hoare annotation is: true [2022-11-18 19:40:58,050 INFO L899 garLoopResultBuilder]: For program point L860-1(line 860) no Hoare annotation was computed. [2022-11-18 19:40:58,050 INFO L902 garLoopResultBuilder]: At program point L879(lines 854 883) the Hoare annotation is: true [2022-11-18 19:40:58,051 INFO L899 garLoopResultBuilder]: For program point L875(line 875) no Hoare annotation was computed. [2022-11-18 19:40:58,051 INFO L899 garLoopResultBuilder]: For program point L868(lines 868 872) no Hoare annotation was computed. [2022-11-18 19:40:58,051 INFO L902 garLoopResultBuilder]: At program point L868-1(lines 868 872) the Hoare annotation is: true [2022-11-18 19:40:58,051 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 637 660) no Hoare annotation was computed. [2022-11-18 19:40:58,051 INFO L895 garLoopResultBuilder]: At program point L709(line 709) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-18 19:40:58,051 INFO L895 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-18 19:40:58,052 INFO L895 garLoopResultBuilder]: At program point L507(lines 502 510) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)))) [2022-11-18 19:40:58,052 INFO L895 garLoopResultBuilder]: At program point L714(line 714) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-11-18 19:40:58,052 INFO L895 garLoopResultBuilder]: At program point L714-1(lines 695 719) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (= 0 ~systemActive~0)))) [2022-11-18 19:40:58,052 INFO L895 garLoopResultBuilder]: At program point L743(lines 736 746) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-18 19:40:58,052 INFO L899 garLoopResultBuilder]: For program point L648-1(lines 648 654) no Hoare annotation was computed. [2022-11-18 19:40:58,052 INFO L895 garLoopResultBuilder]: At program point L475(lines 470 478) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-18 19:40:58,053 INFO L899 garLoopResultBuilder]: For program point L438(lines 438 442) no Hoare annotation was computed. [2022-11-18 19:40:58,053 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-11-18 19:40:58,053 INFO L895 garLoopResultBuilder]: At program point L438-2(lines 434 445) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-18 19:40:58,053 INFO L895 garLoopResultBuilder]: At program point L752(lines 747 755) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-11-18 19:40:58,053 INFO L899 garLoopResultBuilder]: For program point L839(lines 839 845) no Hoare annotation was computed. [2022-11-18 19:40:58,053 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 848) no Hoare annotation was computed. [2022-11-18 19:40:58,054 INFO L895 garLoopResultBuilder]: At program point L835-1(lines 827 851) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-11-18 19:40:58,054 INFO L899 garLoopResultBuilder]: For program point L641-1(lines 640 659) no Hoare annotation was computed. [2022-11-18 19:40:58,054 INFO L899 garLoopResultBuilder]: For program point L703(lines 703 711) no Hoare annotation was computed. [2022-11-18 19:40:58,054 INFO L899 garLoopResultBuilder]: For program point L699(lines 699 716) no Hoare annotation was computed. [2022-11-18 19:40:58,054 INFO L895 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-11-18 19:40:58,054 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 637 660) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0))) [2022-11-18 19:40:58,054 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 637 660) no Hoare annotation was computed. [2022-11-18 19:40:58,055 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-18 19:40:58,055 INFO L895 garLoopResultBuilder]: At program point L539(lines 535 541) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 19:40:58,055 INFO L902 garLoopResultBuilder]: At program point L944(lines 925 947) the Hoare annotation is: true [2022-11-18 19:40:58,055 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 19:40:58,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 19:40:58,055 INFO L899 garLoopResultBuilder]: For program point L573(lines 572 619) no Hoare annotation was computed. [2022-11-18 19:40:58,055 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 19:40:58,055 INFO L899 garLoopResultBuilder]: For program point L602(lines 602 615) no Hoare annotation was computed. [2022-11-18 19:40:58,056 INFO L895 garLoopResultBuilder]: At program point L594(line 594) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-18 19:40:58,056 INFO L895 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: false [2022-11-18 19:40:58,056 INFO L895 garLoopResultBuilder]: At program point L912(lines 908 914) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~8#1| ~systemActive~0)) [2022-11-18 19:40:58,056 INFO L902 garLoopResultBuilder]: At program point L623(lines 562 627) the Hoare annotation is: true [2022-11-18 19:40:58,056 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 588) no Hoare annotation was computed. [2022-11-18 19:40:58,056 INFO L899 garLoopResultBuilder]: For program point L582-1(lines 582 588) no Hoare annotation was computed. [2022-11-18 19:40:58,056 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 19:40:58,056 INFO L899 garLoopResultBuilder]: For program point L574(lines 574 578) no Hoare annotation was computed. [2022-11-18 19:40:58,057 INFO L895 garLoopResultBuilder]: At program point L620(lines 571 621) the Hoare annotation is: false [2022-11-18 19:40:58,057 INFO L895 garLoopResultBuilder]: At program point L554(lines 549 557) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 19:40:58,057 INFO L895 garLoopResultBuilder]: At program point L546(lines 542 548) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 19:40:58,057 INFO L899 garLoopResultBuilder]: For program point L608(lines 608 614) no Hoare annotation was computed. [2022-11-18 19:40:58,057 INFO L895 garLoopResultBuilder]: At program point L608-2(lines 602 615) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-18 19:40:58,057 INFO L902 garLoopResultBuilder]: At program point L922(lines 915 924) the Hoare annotation is: true [2022-11-18 19:40:58,057 INFO L895 garLoopResultBuilder]: At program point L823(lines 811 825) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-18 19:40:58,058 INFO L899 garLoopResultBuilder]: For program point L592(lines 592 598) no Hoare annotation was computed. [2022-11-18 19:40:58,058 INFO L899 garLoopResultBuilder]: For program point L592-1(lines 592 598) no Hoare annotation was computed. [2022-11-18 19:40:58,058 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 821) no Hoare annotation was computed. [2022-11-18 19:40:58,058 INFO L899 garLoopResultBuilder]: For program point L815-1(lines 815 821) no Hoare annotation was computed. [2022-11-18 19:40:58,058 INFO L895 garLoopResultBuilder]: At program point L617(lines 572 619) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-18 19:40:58,065 INFO L895 garLoopResultBuilder]: At program point L584(line 584) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-18 19:40:58,066 INFO L899 garLoopResultBuilder]: For program point L935(lines 935 942) no Hoare annotation was computed. [2022-11-18 19:40:58,066 INFO L899 garLoopResultBuilder]: For program point L935-2(lines 935 942) no Hoare annotation was computed. [2022-11-18 19:40:58,066 INFO L899 garLoopResultBuilder]: For program point L450-1(lines 446 457) no Hoare annotation was computed. [2022-11-18 19:40:58,071 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 446 457) no Hoare annotation was computed. [2022-11-18 19:40:58,072 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 446 457) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-11-18 19:40:58,072 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 690) no Hoare annotation was computed. [2022-11-18 19:40:58,072 INFO L899 garLoopResultBuilder]: For program point L801(lines 801 805) no Hoare annotation was computed. [2022-11-18 19:40:58,072 INFO L899 garLoopResultBuilder]: For program point L801-2(lines 801 805) no Hoare annotation was computed. [2022-11-18 19:40:58,073 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 669 693) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2022-11-18 19:40:58,073 INFO L895 garLoopResultBuilder]: At program point L688(line 688) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (= 0 ~systemActive~0)) [2022-11-18 19:40:58,073 INFO L899 garLoopResultBuilder]: For program point L688-1(lines 669 693) no Hoare annotation was computed. [2022-11-18 19:40:58,073 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 669 693) no Hoare annotation was computed. [2022-11-18 19:40:58,073 INFO L895 garLoopResultBuilder]: At program point L683(line 683) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-11-18 19:40:58,074 INFO L895 garLoopResultBuilder]: At program point L807(lines 792 810) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-11-18 19:40:58,074 INFO L895 garLoopResultBuilder]: At program point L679(line 679) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-11-18 19:40:58,074 INFO L899 garLoopResultBuilder]: For program point L677(lines 677 685) no Hoare annotation was computed. [2022-11-18 19:40:58,074 INFO L895 garLoopResultBuilder]: At program point L516(lines 511 519) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= 0 ~systemActive~0)) [2022-11-18 19:40:58,078 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 19:40:58,080 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:40:58,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:40:58 BoogieIcfgContainer [2022-11-18 19:40:58,116 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:40:58,117 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:40:58,117 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:40:58,117 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:40:58,118 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:40:54" (3/4) ... [2022-11-18 19:40:58,122 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 19:40:58,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-18 19:40:58,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-18 19:40:58,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-18 19:40:58,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-18 19:40:58,133 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-18 19:40:58,134 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-18 19:40:58,135 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-11-18 19:40:58,152 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-18 19:40:58,152 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-18 19:40:58,153 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 19:40:58,153 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:40:58,154 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 19:40:58,187 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-18 19:40:58,188 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive [2022-11-18 19:40:58,190 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-18 19:40:58,192 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) [2022-11-18 19:40:58,194 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) [2022-11-18 19:40:58,195 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-18 19:40:58,195 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) [2022-11-18 19:40:58,195 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-18 19:40:58,196 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || 0 == systemActive [2022-11-18 19:40:58,196 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2022-11-18 19:40:58,196 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || 0 == systemActive [2022-11-18 19:40:58,196 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-11-18 19:40:58,247 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:40:58,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:40:58,248 INFO L158 Benchmark]: Toolchain (without parser) took 4640.04ms. Allocated memory was 121.6MB in the beginning and 169.9MB in the end (delta: 48.2MB). Free memory was 83.7MB in the beginning and 86.5MB in the end (delta: -2.8MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2022-11-18 19:40:58,248 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:40:58,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 621.55ms. Allocated memory is still 121.6MB. Free memory was 83.4MB in the beginning and 88.8MB in the end (delta: -5.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:40:58,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.09ms. Allocated memory is still 121.6MB. Free memory was 88.3MB in the beginning and 86.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:40:58,250 INFO L158 Benchmark]: Boogie Preprocessor took 60.10ms. Allocated memory is still 121.6MB. Free memory was 86.3MB in the beginning and 84.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:40:58,251 INFO L158 Benchmark]: RCFGBuilder took 529.35ms. Allocated memory is still 121.6MB. Free memory was 84.7MB in the beginning and 68.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 19:40:58,251 INFO L158 Benchmark]: TraceAbstraction took 3207.15ms. Allocated memory was 121.6MB in the beginning and 169.9MB in the end (delta: 48.2MB). Free memory was 67.9MB in the beginning and 91.7MB in the end (delta: -23.8MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2022-11-18 19:40:58,252 INFO L158 Benchmark]: Witness Printer took 130.41ms. Allocated memory is still 169.9MB. Free memory was 91.7MB in the beginning and 86.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:40:58,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 121.6MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 621.55ms. Allocated memory is still 121.6MB. Free memory was 83.4MB in the beginning and 88.8MB in the end (delta: -5.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.09ms. Allocated memory is still 121.6MB. Free memory was 88.3MB in the beginning and 86.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.10ms. Allocated memory is still 121.6MB. Free memory was 86.3MB in the beginning and 84.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 529.35ms. Allocated memory is still 121.6MB. Free memory was 84.7MB in the beginning and 68.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3207.15ms. Allocated memory was 121.6MB in the beginning and 169.9MB in the end (delta: 48.2MB). Free memory was 67.9MB in the beginning and 91.7MB in the end (delta: -23.8MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Witness Printer took 130.41ms. Allocated memory is still 169.9MB. Free memory was 91.7MB in the beginning and 86.5MB in the end (delta: 5.2MB). 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 - PositiveResult [Line: 54]: 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 8 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 407 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 402 mSDsluCounter, 1199 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 710 mSDsCounter, 50 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 186 IncrementalHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 50 mSolverCounterUnsat, 489 mSDtfsCounter, 186 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=296occurred in iteration=4, InterpolantAutomatonStates: 25, 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, 6 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 41 LocationsWithAnnotation, 493 PreInvPairs, 559 NumberOfFragments, 306 HoareAnnotationTreeSize, 493 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 41 FomulaSimplificationsInter, 1929 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 153 NumberOfCodeBlocks, 153 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 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: 511]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || 0 == systemActive - InvariantResult [Line: 535]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 811]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 562]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 915]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 736]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive)) - InvariantResult [Line: 434]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1) - InvariantResult [Line: 925]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 571]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 747]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (tmp == 1 && \result == 1)) - InvariantResult [Line: 864]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || 0 == systemActive - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1) && tmp == systemActive - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 19:40:58,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d29f82b3-31f9-4e69-a7f4-37a7013af3eb/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE