./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 --- 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-4e7fbc6 [2022-11-23 14:04:29,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:04:29,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:04:29,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:04:29,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:04:29,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:04:29,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:04:29,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:04:29,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:04:29,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:04:29,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:04:29,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:04:29,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:04:29,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:04:29,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:04:29,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:04:29,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:04:29,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:04:29,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:04:29,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:04:29,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:04:29,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:04:29,313 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:04:29,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:04:29,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:04:29,320 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:04:29,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:04:29,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:04:29,322 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:04:29,323 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:04:29,323 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:04:29,324 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:04:29,324 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:04:29,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:04:29,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:04:29,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:04:29,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:04:29,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:04:29,334 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:04:29,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:04:29,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:04:29,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:04:29,381 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:04:29,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:04:29,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:04:29,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:04:29,384 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:04:29,384 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:04:29,385 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:04:29,385 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:04:29,385 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:04:29,385 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:04:29,387 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:04:29,387 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:04:29,387 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:04:29,388 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:04:29,388 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:04:29,388 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:04:29,388 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:04:29,389 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:04:29,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:04:29,390 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:04:29,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:04:29,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:04:29,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:04:29,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:04:29,392 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:04:29,392 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:04:29,392 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:04:29,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:04:29,393 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:04:29,393 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:04:29,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:04:29,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:04:29,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:29,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:04:29,396 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:04:29,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:04:29,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:04:29,397 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:04:29,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:04:29,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:04:29,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:04:29,398 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_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e5a4c274bc0fec0eeea8ea2f72c4bc5bbc7aef2fd24f2cf907e22c2c7f3759d4 [2022-11-23 14:04:29,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:04:29,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:04:29,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:04:29,738 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:04:29,738 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:04:29,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2022-11-23 14:04:32,834 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:04:33,109 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:04:33,110 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c [2022-11-23 14:04:33,122 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/data/98af0059d/a6361d8d5f7c416d89a03bf7d617bb96/FLAG323134f8f [2022-11-23 14:04:33,138 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/data/98af0059d/a6361d8d5f7c416d89a03bf7d617bb96 [2022-11-23 14:04:33,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:04:33,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:04:33,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:04:33,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:04:33,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:04:33,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65631604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33, skipping insertion in model container [2022-11-23 14:04:33,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,159 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:04:33,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:04:33,499 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c[18537,18550] [2022-11-23 14:04:33,509 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:04:33,525 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:04:33,646 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/sv-benchmarks/c/product-lines/minepump_spec5_product43.cil.c[18537,18550] [2022-11-23 14:04:33,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:04:33,674 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:04:33,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33 WrapperNode [2022-11-23 14:04:33,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:04:33,676 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:04:33,676 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:04:33,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:04:33,684 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,753 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 202 [2022-11-23 14:04:33,754 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:04:33,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:04:33,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:04:33,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:04:33,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,782 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:04:33,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:04:33,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:04:33,818 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:04:33,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (1/1) ... [2022-11-23 14:04:33,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:04:33,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:04:33,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:04:33,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:04:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:04:33,904 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 14:04:33,904 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 14:04:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 14:04:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 14:04:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 14:04:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 14:04:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 14:04:33,905 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 14:04:33,905 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-23 14:04:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-23 14:04:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:04:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 14:04:33,906 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 14:04:33,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:04:33,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:04:34,001 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:04:34,004 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:04:34,355 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:04:34,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:04:34,512 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 14:04:34,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:34 BoogieIcfgContainer [2022-11-23 14:04:34,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:04:34,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:04:34,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:04:34,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:04:34,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:04:33" (1/3) ... [2022-11-23 14:04:34,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f88717f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:34, skipping insertion in model container [2022-11-23 14:04:34,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:04:33" (2/3) ... [2022-11-23 14:04:34,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f88717f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:04:34, skipping insertion in model container [2022-11-23 14:04:34,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:34" (3/3) ... [2022-11-23 14:04:34,526 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product43.cil.c [2022-11-23 14:04:34,550 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:04:34,551 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:04:34,648 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:04:34,659 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=FINITE_AUTOMATA, 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;@1141e7df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:04:34,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:04:34,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-23 14:04:34,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 14:04:34,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:34,680 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:04:34,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:34,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:34,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1388192853, now seen corresponding path program 1 times [2022-11-23 14:04:34,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:34,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230065237] [2022-11-23 14:04:34,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:34,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:34,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:35,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:04:35,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:04:35,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230065237] [2022-11-23 14:04:35,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230065237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:04:35,004 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:04:35,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:04:35,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672083357] [2022-11-23 14:04:35,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:04:35,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:04:35,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:04:35,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:04:35,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:04:35,069 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:04:35,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:04:35,183 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-23 14:04:35,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:04:35,187 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-23 14:04:35,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:04:35,199 INFO L225 Difference]: With dead ends: 100 [2022-11-23 14:04:35,199 INFO L226 Difference]: Without dead ends: 46 [2022-11-23 14:04:35,204 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 [2022-11-23 14:04:35,209 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:04:35,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:04:35,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-23 14:04:35,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-23 14:04:35,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-23 14:04:35,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-23 14:04:35,274 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2022-11-23 14:04:35,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:04:35,276 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-23 14:04:35,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:04:35,276 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-23 14:04:35,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-23 14:04:35,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:35,280 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:04:35,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:04:35,281 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:35,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:35,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1382298679, now seen corresponding path program 1 times [2022-11-23 14:04:35,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:35,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579174662] [2022-11-23 14:04:35,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:35,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:35,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:04:35,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:04:35,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579174662] [2022-11-23 14:04:35,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579174662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:04:35,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:04:35,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:04:35,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686762756] [2022-11-23 14:04:35,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:04:35,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:04:35,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:04:35,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:04:35,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:04:35,490 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:04:35,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:04:35,576 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2022-11-23 14:04:35,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:04:35,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-23 14:04:35,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:04:35,578 INFO L225 Difference]: With dead ends: 69 [2022-11-23 14:04:35,579 INFO L226 Difference]: Without dead ends: 38 [2022-11-23 14:04:35,579 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 [2022-11-23 14:04:35,581 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:04:35,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:04:35,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-23 14:04:35,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-23 14:04:35,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-23 14:04:35,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2022-11-23 14:04:35,590 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 22 [2022-11-23 14:04:35,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:04:35,591 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-11-23 14:04:35,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 14:04:35,591 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-11-23 14:04:35,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 14:04:35,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:35,592 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:04:35,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:04:35,593 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:35,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:35,594 INFO L85 PathProgramCache]: Analyzing trace with hash 987876177, now seen corresponding path program 1 times [2022-11-23 14:04:35,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:35,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622583912] [2022-11-23 14:04:35,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:35,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:35,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:04:35,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:04:35,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622583912] [2022-11-23 14:04:35,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622583912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:04:35,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:04:35,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:04:35,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349518607] [2022-11-23 14:04:35,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:04:35,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:04:35,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:04:35,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:04:35,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:04:35,908 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:04:36,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:04:36,426 INFO L93 Difference]: Finished difference Result 145 states and 181 transitions. [2022-11-23 14:04:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 14:04:36,427 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-23 14:04:36,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:04:36,429 INFO L225 Difference]: With dead ends: 145 [2022-11-23 14:04:36,429 INFO L226 Difference]: Without dead ends: 109 [2022-11-23 14:04:36,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-23 14:04:36,431 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 77 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:04:36,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 289 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:04:36,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-23 14:04:36,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 76. [2022-11-23 14:04:36,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.26) internal successors, (63), 56 states have internal predecessors, (63), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-23 14:04:36,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2022-11-23 14:04:36,451 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 24 [2022-11-23 14:04:36,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:04:36,452 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2022-11-23 14:04:36,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:04:36,452 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2022-11-23 14:04:36,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 14:04:36,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:36,454 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:04:36,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:04:36,454 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:36,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:36,455 INFO L85 PathProgramCache]: Analyzing trace with hash -2066109895, now seen corresponding path program 1 times [2022-11-23 14:04:36,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:36,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254491420] [2022-11-23 14:04:36,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:36,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:36,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:37,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 14:04:37,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:04:37,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254491420] [2022-11-23 14:04:37,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1254491420] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:04:37,015 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:04:37,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-23 14:04:37,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832784346] [2022-11-23 14:04:37,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:04:37,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 14:04:37,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:04:37,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 14:04:37,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-23 14:04:37,019 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:04:37,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:04:37,547 INFO L93 Difference]: Finished difference Result 250 states and 317 transitions. [2022-11-23 14:04:37,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-23 14:04:37,548 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-23 14:04:37,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:04:37,555 INFO L225 Difference]: With dead ends: 250 [2022-11-23 14:04:37,555 INFO L226 Difference]: Without dead ends: 176 [2022-11-23 14:04:37,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2022-11-23 14:04:37,566 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 136 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:04:37,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 328 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:04:37,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-11-23 14:04:37,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 146. [2022-11-23 14:04:37,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 97 states have (on average 1.2268041237113403) internal successors, (119), 108 states have internal predecessors, (119), 24 states have call successors, (24), 22 states have call predecessors, (24), 24 states have return successors, (33), 23 states have call predecessors, (33), 24 states have call successors, (33) [2022-11-23 14:04:37,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 176 transitions. [2022-11-23 14:04:37,619 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 176 transitions. Word has length 27 [2022-11-23 14:04:37,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:04:37,619 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 176 transitions. [2022-11-23 14:04:37,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 14:04:37,619 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 176 transitions. [2022-11-23 14:04:37,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 14:04:37,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:37,627 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:04:37,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:04:37,627 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:37,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:37,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1419551120, now seen corresponding path program 1 times [2022-11-23 14:04:37,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:37,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305887444] [2022-11-23 14:04:37,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:37,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:38,110 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 14:04:38,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:04:38,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305887444] [2022-11-23 14:04:38,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305887444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:04:38,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:04:38,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:04:38,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017985271] [2022-11-23 14:04:38,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:04:38,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:04:38,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:04:38,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:04:38,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:04:38,113 INFO L87 Difference]: Start difference. First operand 146 states and 176 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:04:38,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:04:38,669 INFO L93 Difference]: Finished difference Result 414 states and 509 transitions. [2022-11-23 14:04:38,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 14:04:38,670 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-23 14:04:38,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:04:38,677 INFO L225 Difference]: With dead ends: 414 [2022-11-23 14:04:38,677 INFO L226 Difference]: Without dead ends: 301 [2022-11-23 14:04:38,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-11-23 14:04:38,688 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 100 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 14:04:38,689 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 276 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 14:04:38,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-11-23 14:04:38,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 231. [2022-11-23 14:04:38,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 155 states have (on average 1.2258064516129032) internal successors, (190), 172 states have internal predecessors, (190), 37 states have call successors, (37), 33 states have call predecessors, (37), 38 states have return successors, (51), 36 states have call predecessors, (51), 37 states have call successors, (51) [2022-11-23 14:04:38,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 278 transitions. [2022-11-23 14:04:38,766 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 278 transitions. Word has length 30 [2022-11-23 14:04:38,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:04:38,766 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 278 transitions. [2022-11-23 14:04:38,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 14:04:38,767 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 278 transitions. [2022-11-23 14:04:38,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 14:04:38,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:38,773 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:04:38,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:04:38,773 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:38,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:38,774 INFO L85 PathProgramCache]: Analyzing trace with hash -1598941202, now seen corresponding path program 1 times [2022-11-23 14:04:38,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:38,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527408165] [2022-11-23 14:04:38,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:38,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:38,904 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:04:38,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:04:38,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527408165] [2022-11-23 14:04:38,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527408165] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:04:38,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:04:38,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:04:38,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172363817] [2022-11-23 14:04:38,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:04:38,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:04:38,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:04:38,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:04:38,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:04:38,906 INFO L87 Difference]: Start difference. First operand 231 states and 278 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-23 14:04:38,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:04:38,993 INFO L93 Difference]: Finished difference Result 464 states and 572 transitions. [2022-11-23 14:04:38,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:04:38,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2022-11-23 14:04:38,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:04:38,997 INFO L225 Difference]: With dead ends: 464 [2022-11-23 14:04:38,997 INFO L226 Difference]: Without dead ends: 198 [2022-11-23 14:04:38,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:04:39,001 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 17 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:04:39,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 84 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:04:39,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-23 14:04:39,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-23 14:04:39,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 132 states have (on average 1.1818181818181819) internal successors, (156), 146 states have internal predecessors, (156), 33 states have call successors, (33), 30 states have call predecessors, (33), 32 states have return successors, (44), 32 states have call predecessors, (44), 33 states have call successors, (44) [2022-11-23 14:04:39,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 233 transitions. [2022-11-23 14:04:39,051 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 233 transitions. Word has length 47 [2022-11-23 14:04:39,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:04:39,052 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 233 transitions. [2022-11-23 14:04:39,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-23 14:04:39,054 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 233 transitions. [2022-11-23 14:04:39,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-23 14:04:39,055 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:39,055 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:04:39,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:04:39,055 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:39,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:39,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1315798111, now seen corresponding path program 1 times [2022-11-23 14:04:39,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:39,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849582375] [2022-11-23 14:04:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:39,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:39,307 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 14:04:39,307 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:04:39,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849582375] [2022-11-23 14:04:39,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849582375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:04:39,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:04:39,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 14:04:39,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311505926] [2022-11-23 14:04:39,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:04:39,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 14:04:39,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:04:39,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 14:04:39,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 14:04:39,310 INFO L87 Difference]: Start difference. First operand 198 states and 233 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 14:04:39,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:04:39,550 INFO L93 Difference]: Finished difference Result 341 states and 406 transitions. [2022-11-23 14:04:39,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 14:04:39,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 53 [2022-11-23 14:04:39,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:04:39,553 INFO L225 Difference]: With dead ends: 341 [2022-11-23 14:04:39,553 INFO L226 Difference]: Without dead ends: 210 [2022-11-23 14:04:39,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-11-23 14:04:39,556 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 91 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:04:39,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 106 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:04:39,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-23 14:04:39,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 198. [2022-11-23 14:04:39,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 132 states have (on average 1.1742424242424243) internal successors, (155), 146 states have internal predecessors, (155), 33 states have call successors, (33), 30 states have call predecessors, (33), 32 states have return successors, (44), 32 states have call predecessors, (44), 33 states have call successors, (44) [2022-11-23 14:04:39,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 232 transitions. [2022-11-23 14:04:39,598 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 232 transitions. Word has length 53 [2022-11-23 14:04:39,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:04:39,598 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 232 transitions. [2022-11-23 14:04:39,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 14:04:39,599 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 232 transitions. [2022-11-23 14:04:39,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-23 14:04:39,603 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:04:39,603 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:04:39,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:04:39,604 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:04:39,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:04:39,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1457575136, now seen corresponding path program 1 times [2022-11-23 14:04:39,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:04:39,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848531463] [2022-11-23 14:04:39,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:39,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:04:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:40,196 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 14:04:40,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:04:40,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848531463] [2022-11-23 14:04:40,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848531463] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 14:04:40,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668979810] [2022-11-23 14:04:40,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:04:40,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:04:40,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:04:40,208 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:04:40,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 14:04:40,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:04:40,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 39 conjunts are in the unsatisfiable core [2022-11-23 14:04:40,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:04:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 14:04:40,958 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:04:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-23 14:04:41,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668979810] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:04:41,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [194179656] [2022-11-23 14:04:41,539 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-23 14:04:41,539 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 14:04:41,543 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 14:04:41,550 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 14:04:41,550 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 14:04:48,174 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 33 for LOIs [2022-11-23 14:04:48,180 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 55 for LOIs [2022-11-23 14:04:48,747 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 43 for LOIs [2022-11-23 14:04:48,755 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 30 for LOIs [2022-11-23 14:04:48,758 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 14:04:54,000 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4785#(and (<= 0 |timeShift_isHighWaterLevel_~retValue_acc~6#1|) (<= |timeShift_isHighWaterLevel_#res#1| 1) (<= 0 |timeShift_isHighWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 |timeShift_isHighWaterSensorDry_~retValue_acc~9#1|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0) (<= ~pumpRunning~0 1) (<= 0 |timeShift_processEnvironment_~tmp~5#1|) (<= |timeShift_isHighWaterSensorDry_#res#1| 1) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| 2)) (= ~methaneLevelCritical~0 0) (<= 0 |old(~switchedOnBeforeTS~0)|) (= ~head~0.offset 0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| |timeShift_getWaterLevel_#res#1|) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (<= |old(~switchedOnBeforeTS~0)| 0) (= |old(~pumpRunning~0)| 0) (<= |timeShift_isHighWaterSensorDry_~retValue_acc~9#1| 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 0 |timeShift_isHighWaterLevel_~tmp___0~1#1|) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= |timeShift_processEnvironment_~tmp~5#1| 1) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (<= |timeShift_isHighWaterLevel_~retValue_acc~6#1| 1) (= |#NULL.offset| 0) (<= |timeShift_isHighWaterLevel_~tmp~7#1| 1) (<= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (<= 0 |timeShift_isHighWaterLevel_~tmp~7#1|) (= ~switchedOnBeforeTS~0 0) (<= |timeShift_getWaterLevel_~retValue_acc~8#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 14:04:54,001 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 14:04:54,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 14:04:54,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 10] total 22 [2022-11-23 14:04:54,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387614835] [2022-11-23 14:04:54,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 14:04:54,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-23 14:04:54,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:04:54,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-23 14:04:54,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=1989, Unknown=0, NotChecked=0, Total=2256 [2022-11-23 14:04:54,004 INFO L87 Difference]: Start difference. First operand 198 states and 232 transitions. Second operand has 22 states, 20 states have (on average 4.55) internal successors, (91), 22 states have internal predecessors, (91), 8 states have call successors, (22), 7 states have call predecessors, (22), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2022-11-23 14:04:55,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:04:55,774 INFO L93 Difference]: Finished difference Result 409 states and 500 transitions. [2022-11-23 14:04:55,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-23 14:04:55,776 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 4.55) internal successors, (91), 22 states have internal predecessors, (91), 8 states have call successors, (22), 7 states have call predecessors, (22), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 58 [2022-11-23 14:04:55,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:04:55,777 INFO L225 Difference]: With dead ends: 409 [2022-11-23 14:04:55,777 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:04:55,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 137 SyntacticMatches, 8 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1760 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=719, Invalid=4683, Unknown=0, NotChecked=0, Total=5402 [2022-11-23 14:04:55,781 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 495 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 14:04:55,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 287 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 14:04:55,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:04:55,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:04:55,782 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) [2022-11-23 14:04:55,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:04:55,783 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2022-11-23 14:04:55,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:04:55,783 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:04:55,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 4.55) internal successors, (91), 22 states have internal predecessors, (91), 8 states have call successors, (22), 7 states have call predecessors, (22), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2022-11-23 14:04:55,784 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:04:55,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:04:55,787 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:04:55,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:04:55,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:04:56,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:05:00,046 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 629 635) no Hoare annotation was computed. [2022-11-23 14:05:00,047 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 629 635) the Hoare annotation is: true [2022-11-23 14:05:00,047 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 814 825) the Hoare annotation is: true [2022-11-23 14:05:00,047 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 814 825) no Hoare annotation was computed. [2022-11-23 14:05:00,047 INFO L899 garLoopResultBuilder]: For program point L609-2(lines 605 627) no Hoare annotation was computed. [2022-11-23 14:05:00,047 INFO L899 garLoopResultBuilder]: For program point L915(lines 915 921) no Hoare annotation was computed. [2022-11-23 14:05:00,048 INFO L895 garLoopResultBuilder]: At program point L651(line 651) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= |timeShift_processEnvironment_~tmp~5#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) (and (or (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))) (not (= 0 ~systemActive~0)))) [2022-11-23 14:05:00,048 INFO L895 garLoopResultBuilder]: At program point L656(line 656) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (< |old(~waterLevel~0)| 3)))) (and (or (and .cse0 (<= ~waterLevel~0 1) .cse1) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse2) (or (and .cse0 (or (not (< 0 ~waterLevel~0)) (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse1) .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (not (= 0 ~systemActive~0)))) [2022-11-23 14:05:00,048 INFO L895 garLoopResultBuilder]: At program point L912(line 912) the Hoare annotation is: (let ((.cse0 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| |old(~waterLevel~0)|)) (.cse1 (<= ~waterLevel~0 1)) (.cse13 (= 0 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse12 (= ~pumpRunning~0 0))) (let ((.cse8 (not .cse12)) (.cse3 (and .cse13 .cse2)) (.cse11 (not .cse13)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse9 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (and .cse12 .cse0 .cse1 (= |timeShift_processEnvironment_~tmp~5#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0) .cse2)) (.cse10 (and .cse12 .cse13 .cse2))) (and (or (and .cse0 .cse1 .cse2) .cse3 .cse4 .cse5) (or .cse6 .cse7 (and .cse8 (not (< 0 ~waterLevel~0)) .cse0 (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2) .cse3 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse9 .cse10 .cse11) (or .cse8 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2)) .cse4 .cse5) (or .cse3 .cse11) (or .cse9 .cse10 .cse4 .cse5) (or .cse6 .cse9 .cse1) (or .cse6 .cse9 .cse7 .cse10)))) [2022-11-23 14:05:00,049 INFO L895 garLoopResultBuilder]: At program point L656-1(lines 637 661) the Hoare annotation is: (let ((.cse8 (<= 2 |old(~waterLevel~0)|)) (.cse3 (<= ~waterLevel~0 1)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse10 (= ~pumpRunning~0 0))) (let ((.cse2 (not .cse10)) (.cse1 (and .cse10 .cse3 (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse9 .cse4)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (and (= |timeShift_processEnvironment_~tmp~5#1| 1) .cse8 .cse9 (< ~waterLevel~0 3))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not .cse8))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1) (or (and .cse2 .cse3 .cse4) .cse5 .cse6 .cse7) (or (and .cse2 (or (not (< 0 ~waterLevel~0)) (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse4) .cse5 .cse1 (not (< |old(~waterLevel~0)| 3)) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 .cse5 .cse6 .cse7) (not (= 0 ~systemActive~0))))) [2022-11-23 14:05:00,049 INFO L899 garLoopResultBuilder]: For program point L912-1(line 912) no Hoare annotation was computed. [2022-11-23 14:05:00,049 INFO L895 garLoopResultBuilder]: At program point L971(line 971) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (< |old(~waterLevel~0)| 3))) (or (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (not (= 0 ~systemActive~0)) (or (not (<= |old(~waterLevel~0)| 1)) (= |old(~switchedOnBeforeTS~0)| 0))) [2022-11-23 14:05:00,049 INFO L895 garLoopResultBuilder]: At program point L616-1(lines 616 622) the Hoare annotation is: (let ((.cse9 (<= ~waterLevel~0 1)) (.cse11 (= |timeShift_processEnvironment_~tmp~5#1| 1)) (.cse13 (<= 2 |old(~waterLevel~0)|)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= 0 ~systemActive~0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse14 (= ~pumpRunning~0 0))) (let ((.cse4 (not .cse14)) (.cse7 (and .cse10 .cse5)) (.cse2 (not .cse10)) (.cse3 (and .cse11 .cse13 .cse12)) (.cse1 (and .cse14 .cse10 .cse5)) (.cse6 (and .cse14 .cse9 (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse12 .cse5)) (.cse8 (not (< |old(~waterLevel~0)| 3))) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (and .cse4 (or (not (< 0 ~waterLevel~0)) (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse5) .cse6 .cse7 .cse8 (= |old(~switchedOnBeforeTS~0)| 0)) (or (and .cse4 .cse9 .cse5) (and (or .cse4 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2))) .cse10) (and .cse11 .cse12) (not (<= |old(~waterLevel~0)| 2)) (not .cse13)) (or .cse7 .cse2) (or .cse0 .cse3 .cse1 .cse6 .cse8) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse9)))) [2022-11-23 14:05:00,049 INFO L895 garLoopResultBuilder]: At program point L645(lines 645 653) the Hoare annotation is: (let ((.cse2 (= |timeShift_processEnvironment_~tmp~5#1| 1)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (let ((.cse6 (< ~waterLevel~0 2))) (or (and (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse6) (and .cse2 (not .cse6)))) .cse3 .cse4 .cse5)) (.cse1 (not (< |old(~waterLevel~0)| 3)))) (and (or .cse0 .cse1 (= |old(~switchedOnBeforeTS~0)| 0)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and .cse2 .cse3 .cse4 .cse5) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (not (= 0 ~systemActive~0))))) [2022-11-23 14:05:00,050 INFO L895 garLoopResultBuilder]: At program point L897(line 897) the Hoare annotation is: (let ((.cse0 (not (= ~switchedOnBeforeTS~0 0))) (.cse5 (not (= 0 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse6 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse5) (or .cse0 .cse5 .cse2) (or .cse3 (and .cse4 .cse6) .cse1) (or (not (<= |old(~waterLevel~0)| 1)) .cse6 .cse2))) [2022-11-23 14:05:00,050 INFO L895 garLoopResultBuilder]: At program point L641(lines 641 658) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse1 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (or (not .cse4) .cse1)) (.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 (not (< |old(~waterLevel~0)| 3))) (or .cse2 (and .cse3 (or .cse4 (not (< 0 ~waterLevel~0))) .cse5 .cse6) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse2 .cse0 (and .cse4 .cse5 .cse6)) (or (and (or .cse4 (< ~waterLevel~0 2)) .cse3 .cse5 .cse6) (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (not (= 0 ~systemActive~0))))) [2022-11-23 14:05:00,050 INFO L895 garLoopResultBuilder]: At program point L897-1(line 897) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse4 (not (= 0 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (and (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret49#1|) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse4) (or .cse0 .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse2 .cse4) (or .cse1 .cse3 .cse5) (or .cse5 .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-23 14:05:00,050 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2022-11-23 14:05:00,051 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 602 628) the Hoare annotation is: (let ((.cse0 (not (= ~switchedOnBeforeTS~0 0))) (.cse5 (not (= 0 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not (< |old(~waterLevel~0)| 3))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse6 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse6 .cse5) (or .cse0 .cse5 .cse2) (or .cse3 (and .cse4 .cse6) .cse1) (or (not (<= |old(~waterLevel~0)| 1)) .cse6 .cse2))) [2022-11-23 14:05:00,051 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 927) no Hoare annotation was computed. [2022-11-23 14:05:00,051 INFO L895 garLoopResultBuilder]: At program point L910-1(lines 902 930) the Hoare annotation is: (let ((.cse13 (<= 2 |old(~waterLevel~0)|)) (.cse2 (= 0 ~systemActive~0)) (.cse5 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| |old(~waterLevel~0)|)) (.cse6 (<= ~waterLevel~0 1)) (.cse14 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse15 (= ~pumpRunning~0 0))) (let ((.cse4 (not (= ~switchedOnBeforeTS~0 0))) (.cse8 (not .cse15)) (.cse11 (and (<= |timeShift_processEnvironment_~tmp~5#1| 0) (< 0 (+ |timeShift_processEnvironment_~tmp~5#1| 1)) .cse15 .cse5 .cse6 .cse14)) (.cse12 (and .cse15 .cse2)) (.cse0 (and (= |timeShift_processEnvironment_~tmp~5#1| 1) (< 1 |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1|) .cse14 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| 2))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not .cse13)) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse10 (not (= |old(~pumpRunning~0)| 0)))) (and (let ((.cse1 (or .cse8 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2))))) (or .cse0 (and .cse1 .cse2) .cse3 (and .cse4 .cse5 .cse6 .cse1) .cse7)) (or .cse9 .cse10 .cse11 .cse12) (or .cse13 (and .cse4 .cse8 (not (< 0 ~waterLevel~0)) .cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) .cse2 .cse11 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse10 (not .cse2) .cse12) (or .cse10 .cse0 .cse2 .cse3 .cse7) (or .cse9 .cse10 .cse6)))) [2022-11-23 14:05:00,051 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 602 628) no Hoare annotation was computed. [2022-11-23 14:05:00,051 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 971) no Hoare annotation was computed. [2022-11-23 14:05:00,051 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2022-11-23 14:05:00,052 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 418 447) the Hoare annotation is: true [2022-11-23 14:05:00,052 INFO L902 garLoopResultBuilder]: At program point L443(lines 418 447) the Hoare annotation is: true [2022-11-23 14:05:00,052 INFO L899 garLoopResultBuilder]: For program point L439(line 439) no Hoare annotation was computed. [2022-11-23 14:05:00,052 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2022-11-23 14:05:00,052 INFO L902 garLoopResultBuilder]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2022-11-23 14:05:00,052 INFO L902 garLoopResultBuilder]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2022-11-23 14:05:00,052 INFO L902 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: true [2022-11-23 14:05:00,052 INFO L899 garLoopResultBuilder]: For program point L424-1(line 424) no Hoare annotation was computed. [2022-11-23 14:05:00,052 INFO L899 garLoopResultBuilder]: For program point L543(lines 543 549) no Hoare annotation was computed. [2022-11-23 14:05:00,052 INFO L899 garLoopResultBuilder]: For program point L543-1(lines 543 549) no Hoare annotation was computed. [2022-11-23 14:05:00,052 INFO L895 garLoopResultBuilder]: At program point L581(lines 532 582) the Hoare annotation is: false [2022-11-23 14:05:00,053 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 14:05:00,053 INFO L895 garLoopResultBuilder]: At program point L569-2(lines 563 576) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse0 (= 0 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse0))) [2022-11-23 14:05:00,053 INFO L899 garLoopResultBuilder]: For program point L553(lines 553 559) no Hoare annotation was computed. [2022-11-23 14:05:00,053 INFO L895 garLoopResultBuilder]: At program point L553-1(lines 553 559) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse0 (= 0 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse0))) [2022-11-23 14:05:00,053 INFO L895 garLoopResultBuilder]: At program point L578(lines 533 580) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse0 (= 0 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse0))) [2022-11-23 14:05:00,053 INFO L895 garLoopResultBuilder]: At program point L545(line 545) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse0 (= 0 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse0))) [2022-11-23 14:05:00,053 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:05:00,053 INFO L895 garLoopResultBuilder]: At program point L508(lines 508 515) the Hoare annotation is: (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_main_~tmp~3#1| 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-23 14:05:00,053 INFO L902 garLoopResultBuilder]: At program point L508-2(lines 508 515) the Hoare annotation is: true [2022-11-23 14:05:00,054 INFO L899 garLoopResultBuilder]: For program point L534(lines 533 580) no Hoare annotation was computed. [2022-11-23 14:05:00,054 INFO L895 garLoopResultBuilder]: At program point L555(line 555) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 (<= ~waterLevel~0 2)) (and .cse0 (= 0 ~systemActive~0)) (and (= ~pumpRunning~0 0) .cse1 .cse0) (and (not (= ~switchedOnBeforeTS~0 0)) .cse1 .cse0))) [2022-11-23 14:05:00,054 INFO L902 garLoopResultBuilder]: At program point L584(lines 523 588) the Hoare annotation is: true [2022-11-23 14:05:00,054 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 802 813) no Hoare annotation was computed. [2022-11-23 14:05:00,054 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 802 813) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (= ~switchedOnBeforeTS~0 0)) (or .cse0 (not (= ~pumpRunning~0 0)) .cse1) (or .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-23 14:05:00,054 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 707 715) no Hoare annotation was computed. [2022-11-23 14:05:00,054 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 707 715) the Hoare annotation is: true [2022-11-23 14:05:00,059 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:05:00,061 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:05:00,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:05:00 BoogieIcfgContainer [2022-11-23 14:05:00,090 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:05:00,091 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:05:00,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:05:00,091 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:05:00,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:04:34" (3/4) ... [2022-11-23 14:05:00,095 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:05:00,101 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 14:05:00,101 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 14:05:00,101 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 14:05:00,101 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 14:05:00,102 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 14:05:00,102 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-23 14:05:00,108 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 51 nodes and edges [2022-11-23 14:05:00,109 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-23 14:05:00,109 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 14:05:00,110 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:05:00,110 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:05:00,138 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((!(\old(waterLevel) <= 1) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || \old(switchedOnBeforeTS) == 0)) && ((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) <= 2))) && ((!(\old(waterLevel) <= 2) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-23 14:05:00,139 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(0 == systemActive)) && (((((((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) || (((!(pumpRunning == 0) && (!(0 < waterLevel) || waterLevel + 1 <= \old(waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (0 == systemActive && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0)) && ((((((!(pumpRunning == 0) && waterLevel <= 1) && pumpRunning == switchedOnBeforeTS) || ((!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)) && 0 == systemActive)) || (tmp == 1 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((0 == systemActive && pumpRunning == switchedOnBeforeTS) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || ((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel)) || ((pumpRunning == 0 && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) [2022-11-23 14:05:00,139 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((tmp == 1 && 1 < tmp) && \old(waterLevel) == waterLevel) && tmp <= 2) || ((!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)) && 0 == systemActive)) || !(\old(waterLevel) <= 2)) || (((!(switchedOnBeforeTS == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && (!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)))) || !(2 <= \old(waterLevel))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || (pumpRunning == 0 && 0 == systemActive))) && ((((2 <= \old(waterLevel) || ((((!(switchedOnBeforeTS == 0) && !(pumpRunning == 0)) && !(0 < waterLevel)) && tmp <= \old(waterLevel)) && waterLevel <= \old(waterLevel))) || 0 == systemActive) || (((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && 0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (((tmp == 1 && 1 < tmp) && \old(waterLevel) == waterLevel) && tmp <= 2)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) [2022-11-23 14:05:00,139 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || \old(waterLevel) <= waterLevel) || !(\old(waterLevel) < 3)) && ((!(\old(waterLevel) <= 1) || ((((!(pumpRunning == 0) || \old(waterLevel) <= waterLevel) && (pumpRunning == 0 || !(0 < waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS))) && ((((((pumpRunning == 0 || waterLevel < 2) && (!(pumpRunning == 0) || \old(waterLevel) <= waterLevel)) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) [2022-11-23 14:05:00,140 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && (!(\old(waterLevel) <= 2) || !(2 <= \old(waterLevel)))) && !(0 == systemActive)) && (!(\old(waterLevel) <= 1) || \old(switchedOnBeforeTS) == 0) [2022-11-23 14:05:00,140 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) && (((((!(pumpRunning == 0) && waterLevel <= 1) && pumpRunning == switchedOnBeforeTS) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((((!(pumpRunning == 0) && (!(0 < waterLevel) || waterLevel + 1 <= \old(waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) [2022-11-23 14:05:00,141 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 0 && waterLevel < 2) || (tmp == 1 && !(waterLevel < 2))) && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0) && ((!(\old(pumpRunning) == 0) || (((((tmp == 0 && waterLevel < 2) || (tmp == 1 && !(waterLevel < 2))) && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3))) && (((((tmp == 1 && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) [2022-11-23 14:05:00,164 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:05:00,165 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:05:00,165 INFO L158 Benchmark]: Toolchain (without parser) took 27023.06ms. Allocated memory was 180.4MB in the beginning and 499.1MB in the end (delta: 318.8MB). Free memory was 150.3MB in the beginning and 333.6MB in the end (delta: -183.3MB). Peak memory consumption was 137.2MB. Max. memory is 16.1GB. [2022-11-23 14:05:00,166 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 104.9MB. Free memory is still 56.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:05:00,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 530.98ms. Allocated memory is still 180.4MB. Free memory was 150.3MB in the beginning and 131.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 14:05:00,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.15ms. Allocated memory is still 180.4MB. Free memory was 131.5MB in the beginning and 129.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:05:00,167 INFO L158 Benchmark]: Boogie Preprocessor took 62.38ms. Allocated memory is still 180.4MB. Free memory was 129.4MB in the beginning and 127.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:05:00,167 INFO L158 Benchmark]: RCFGBuilder took 697.51ms. Allocated memory is still 180.4MB. Free memory was 127.3MB in the beginning and 100.9MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 14:05:00,167 INFO L158 Benchmark]: TraceAbstraction took 25572.82ms. Allocated memory was 180.4MB in the beginning and 499.1MB in the end (delta: 318.8MB). Free memory was 100.0MB in the beginning and 338.9MB in the end (delta: -238.9MB). Peak memory consumption was 250.4MB. Max. memory is 16.1GB. [2022-11-23 14:05:00,168 INFO L158 Benchmark]: Witness Printer took 73.70ms. Allocated memory is still 499.1MB. Free memory was 338.9MB in the beginning and 333.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 14:05:00,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 104.9MB. Free memory is still 56.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 530.98ms. Allocated memory is still 180.4MB. Free memory was 150.3MB in the beginning and 131.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.15ms. Allocated memory is still 180.4MB. Free memory was 131.5MB in the beginning and 129.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.38ms. Allocated memory is still 180.4MB. Free memory was 129.4MB in the beginning and 127.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 697.51ms. Allocated memory is still 180.4MB. Free memory was 127.3MB in the beginning and 100.9MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 25572.82ms. Allocated memory was 180.4MB in the beginning and 499.1MB in the end (delta: 318.8MB). Free memory was 100.0MB in the beginning and 338.9MB in the end (delta: -238.9MB). Peak memory consumption was 250.4MB. Max. memory is 16.1GB. * Witness Printer took 73.70ms. Allocated memory is still 499.1MB. Free memory was 338.9MB in the beginning and 333.6MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 971]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.4s, OverallIterations: 8, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 942 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 923 mSDsluCounter, 1480 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1084 mSDsCounter, 458 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1622 IncrementalHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 458 mSolverCounterUnsat, 396 mSDtfsCounter, 1622 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 162 SyntacticMatches, 8 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1913 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=231occurred in iteration=5, InterpolantAutomatonStates: 101, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 145 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 618 PreInvPairs, 814 NumberOfFragments, 1620 HoareAnnotationTreeSize, 618 FomulaSimplifications, 4098 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 31 FomulaSimplificationsInter, 10611 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 1286 SizeOfPredicates, 19 NumberOfNonLiveVariables, 313 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 116/144 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: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 897]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((!(\old(waterLevel) <= 1) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || \old(switchedOnBeforeTS) == 0)) && ((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(waterLevel) <= 2))) && ((!(\old(waterLevel) <= 2) || (pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 641]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || \old(waterLevel) <= waterLevel) || !(\old(waterLevel) < 3)) && ((!(\old(waterLevel) <= 1) || ((((!(pumpRunning == 0) || \old(waterLevel) <= waterLevel) && (pumpRunning == 0 || !(0 < waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((pumpRunning == 0 && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS))) && ((((((pumpRunning == 0 || waterLevel < 2) && (!(pumpRunning == 0) || \old(waterLevel) <= waterLevel)) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && splverifierCounter == 0) && waterLevel <= 2) || (splverifierCounter == 0 && 0 == systemActive)) || ((pumpRunning == 0 && waterLevel <= 1) && splverifierCounter == 0)) || ((!(switchedOnBeforeTS == 0) && waterLevel <= 1) && splverifierCounter == 0) - InvariantResult [Line: 902]: Loop Invariant Derived loop invariant: (((((((((((tmp == 1 && 1 < tmp) && \old(waterLevel) == waterLevel) && tmp <= 2) || ((!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)) && 0 == systemActive)) || !(\old(waterLevel) <= 2)) || (((!(switchedOnBeforeTS == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && (!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)))) || !(2 <= \old(waterLevel))) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || (pumpRunning == 0 && 0 == systemActive))) && ((((2 <= \old(waterLevel) || ((((!(switchedOnBeforeTS == 0) && !(pumpRunning == 0)) && !(0 < waterLevel)) && tmp <= \old(waterLevel)) && waterLevel <= \old(waterLevel))) || 0 == systemActive) || (((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && tmp <= \old(waterLevel)) && waterLevel <= 1) && \old(waterLevel) == waterLevel)) || \old(switchedOnBeforeTS) == 0)) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && 0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || (((tmp == 1 && 1 < tmp) && \old(waterLevel) == waterLevel) && tmp <= 2)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 971]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) < 3)) && (!(\old(waterLevel) <= 2) || !(2 <= \old(waterLevel)))) && !(0 == systemActive)) && (!(\old(waterLevel) <= 1) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && splverifierCounter == 0) && waterLevel <= 2) || (splverifierCounter == 0 && 0 == systemActive)) || ((pumpRunning == 0 && waterLevel <= 1) && splverifierCounter == 0)) || ((!(switchedOnBeforeTS == 0) && waterLevel <= 1) && splverifierCounter == 0) - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(0 == systemActive)) && (((((((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) || (((!(pumpRunning == 0) && (!(0 < waterLevel) || waterLevel + 1 <= \old(waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (0 == systemActive && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0)) && ((((((!(pumpRunning == 0) && waterLevel <= 1) && pumpRunning == switchedOnBeforeTS) || ((!(pumpRunning == 0) || (2 <= waterLevel && waterLevel <= 2)) && 0 == systemActive)) || (tmp == 1 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((0 == systemActive && pumpRunning == switchedOnBeforeTS) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || ((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel)) || ((pumpRunning == 0 && 0 == systemActive) && pumpRunning == switchedOnBeforeTS)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3))) && ((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || waterLevel <= 1) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && waterLevel <= 1) && 1 <= waterLevel) && tmp == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 645]: Loop Invariant Derived loop invariant: (((((((((tmp == 0 && waterLevel < 2) || (tmp == 1 && !(waterLevel < 2))) && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0) && ((!(\old(pumpRunning) == 0) || (((((tmp == 0 && waterLevel < 2) || (tmp == 1 && !(waterLevel < 2))) && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3))) && (((((tmp == 1 && pumpRunning == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) - InvariantResult [Line: 637]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) && (((((!(pumpRunning == 0) && waterLevel <= 1) && pumpRunning == switchedOnBeforeTS) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((((!(pumpRunning == 0) && (!(0 < waterLevel) || waterLevel + 1 <= \old(waterLevel))) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || ((((pumpRunning == 0 && waterLevel <= 1) && tmp == 0) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && 2 <= \old(waterLevel)) && \old(waterLevel) == waterLevel) && waterLevel < 3)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && !(0 == systemActive) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 14:05:00,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34689e16-f9d0-48a1-98c8-f2becbfda43b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE