./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product40.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_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/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_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/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_4e6bfc4c-42bd-43d7-93fb-aad52307b309/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 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 --- 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 13:55:17,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:55:17,036 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:55:17,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:55:17,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:55:17,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:55:17,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:55:17,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:55:17,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:55:17,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:55:17,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:55:17,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:55:17,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:55:17,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:55:17,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:55:17,074 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:55:17,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:55:17,076 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:55:17,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:55:17,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:55:17,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:55:17,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:55:17,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:55:17,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:55:17,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:55:17,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:55:17,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:55:17,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:55:17,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:55:17,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:55:17,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:55:17,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:55:17,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:55:17,096 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:55:17,097 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:55:17,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:55:17,098 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:55:17,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:55:17,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:55:17,100 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:55:17,101 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:55:17,102 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 13:55:17,127 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:55:17,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:55:17,128 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:55:17,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:55:17,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:55:17,129 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:55:17,129 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:55:17,129 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:55:17,130 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:55:17,130 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:55:17,130 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:55:17,130 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:55:17,131 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:55:17,131 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:55:17,131 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:55:17,132 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:55:17,132 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:55:17,132 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:55:17,133 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:55:17,133 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:55:17,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:55:17,134 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:55:17,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:55:17,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:55:17,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:55:17,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:55:17,135 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:55:17,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:55:17,136 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:55:17,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:55:17,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:55:17,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:55:17,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:55:17,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:55:17,137 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:55:17,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:55:17,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:55:17,138 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:55:17,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:55:17,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:55:17,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:55:17,139 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_4e6bfc4c-42bd-43d7-93fb-aad52307b309/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b223e2286b1d2d2d4710f5bd529ee4610cfb9619424734c12c9aa00d3c99444 [2022-11-23 13:55:17,370 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:55:17,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:55:17,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:55:17,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:55:17,403 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:55:17,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2022-11-23 13:55:20,487 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:55:20,707 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:55:20,708 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c [2022-11-23 13:55:20,720 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/data/198c6bb18/ff2ef3cc4e1b4108909946680042e82e/FLAG95bd11865 [2022-11-23 13:55:20,734 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/data/198c6bb18/ff2ef3cc4e1b4108909946680042e82e [2022-11-23 13:55:20,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:55:20,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:55:20,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:55:20,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:55:20,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:55:20,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:55:20" (1/1) ... [2022-11-23 13:55:20,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f0b328d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:20, skipping insertion in model container [2022-11-23 13:55:20,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:55:20" (1/1) ... [2022-11-23 13:55:20,754 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:55:20,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:55:21,205 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_4e6bfc4c-42bd-43d7-93fb-aad52307b309/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c[17002,17015] [2022-11-23 13:55:21,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:55:21,256 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:55:21,318 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_4e6bfc4c-42bd-43d7-93fb-aad52307b309/sv-benchmarks/c/product-lines/minepump_spec2_product40.cil.c[17002,17015] [2022-11-23 13:55:21,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:55:21,341 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:55:21,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21 WrapperNode [2022-11-23 13:55:21,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:55:21,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:55:21,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:55:21,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:55:21,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (1/1) ... [2022-11-23 13:55:21,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (1/1) ... [2022-11-23 13:55:21,387 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 197 [2022-11-23 13:55:21,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:55:21,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:55:21,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:55:21,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:55:21,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (1/1) ... [2022-11-23 13:55:21,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (1/1) ... [2022-11-23 13:55:21,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (1/1) ... [2022-11-23 13:55:21,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (1/1) ... [2022-11-23 13:55:21,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (1/1) ... [2022-11-23 13:55:21,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (1/1) ... [2022-11-23 13:55:21,413 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (1/1) ... [2022-11-23 13:55:21,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (1/1) ... [2022-11-23 13:55:21,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:55:21,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:55:21,417 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:55:21,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:55:21,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (1/1) ... [2022-11-23 13:55:21,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:55:21,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:55:21,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:55:21,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:55:21,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:55:21,524 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 13:55:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 13:55:21,524 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 13:55:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 13:55:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 13:55:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 13:55:21,525 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 13:55:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 13:55:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 13:55:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 13:55:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 13:55:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 13:55:21,526 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-23 13:55:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-23 13:55:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:55:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 13:55:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 13:55:21,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:55:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:55:21,611 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:55:21,614 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:55:22,011 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:55:22,126 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:55:22,126 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 13:55:22,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:55:22 BoogieIcfgContainer [2022-11-23 13:55:22,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:55:22,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:55:22,139 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:55:22,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:55:22,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:55:20" (1/3) ... [2022-11-23 13:55:22,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52eb751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:55:22, skipping insertion in model container [2022-11-23 13:55:22,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:55:21" (2/3) ... [2022-11-23 13:55:22,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52eb751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:55:22, skipping insertion in model container [2022-11-23 13:55:22,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:55:22" (3/3) ... [2022-11-23 13:55:22,151 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2022-11-23 13:55:22,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:55:22,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:55:22,223 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:55:22,232 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;@36679901, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:55:22,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:55:22,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-23 13:55:22,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 13:55:22,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:22,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:22,249 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:22,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:22,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1865798431, now seen corresponding path program 1 times [2022-11-23 13:55:22,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:22,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150202523] [2022-11-23 13:55:22,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:22,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:22,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:55:22,458 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:22,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150202523] [2022-11-23 13:55:22,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150202523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:22,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:22,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:55:22,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506256679] [2022-11-23 13:55:22,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:22,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 13:55:22,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:22,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 13:55:22,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 13:55:22,497 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:55:22,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:22,612 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2022-11-23 13:55:22,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 13:55:22,615 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-23 13:55:22,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:22,626 INFO L225 Difference]: With dead ends: 130 [2022-11-23 13:55:22,626 INFO L226 Difference]: Without dead ends: 61 [2022-11-23 13:55:22,631 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 13:55:22,638 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:22,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:55:22,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-23 13:55:22,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-23 13:55:22,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 13:55:22,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-11-23 13:55:22,685 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 17 [2022-11-23 13:55:22,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:22,685 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-11-23 13:55:22,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:55:22,686 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-11-23 13:55:22,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 13:55:22,689 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:22,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:22,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:55:22,689 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:22,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:22,690 INFO L85 PathProgramCache]: Analyzing trace with hash -378815255, now seen corresponding path program 1 times [2022-11-23 13:55:22,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:22,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164384319] [2022-11-23 13:55:22,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:22,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:22,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:22,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:55:22,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:22,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164384319] [2022-11-23 13:55:22,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164384319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:22,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:22,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:55:22,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4752060] [2022-11-23 13:55:22,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:22,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:55:22,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:22,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:55:22,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:55:22,817 INFO L87 Difference]: Start difference. First operand 61 states and 80 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:55:22,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:22,893 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-11-23 13:55:22,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:55:22,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-23 13:55:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:22,895 INFO L225 Difference]: With dead ends: 94 [2022-11-23 13:55:22,895 INFO L226 Difference]: Without dead ends: 53 [2022-11-23 13:55:22,896 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 13:55:22,897 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:22,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 92 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:55:22,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-23 13:55:22,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-23 13:55:22,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 13:55:22,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2022-11-23 13:55:22,924 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 18 [2022-11-23 13:55:22,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:22,926 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2022-11-23 13:55:22,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:55:22,927 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2022-11-23 13:55:22,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 13:55:22,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:22,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:22,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:55:22,930 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:22,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:22,933 INFO L85 PathProgramCache]: Analyzing trace with hash -245993615, now seen corresponding path program 1 times [2022-11-23 13:55:22,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:22,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702592592] [2022-11-23 13:55:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:22,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:23,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:55:23,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:23,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702592592] [2022-11-23 13:55:23,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702592592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:23,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:23,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:55:23,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925911100] [2022-11-23 13:55:23,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:23,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:55:23,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:23,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:55:23,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:55:23,066 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:55:23,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:23,130 INFO L93 Difference]: Finished difference Result 155 states and 204 transitions. [2022-11-23 13:55:23,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:55:23,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-23 13:55:23,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:23,132 INFO L225 Difference]: With dead ends: 155 [2022-11-23 13:55:23,132 INFO L226 Difference]: Without dead ends: 104 [2022-11-23 13:55:23,133 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 13:55:23,134 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 63 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:23,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 125 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:55:23,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-23 13:55:23,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2022-11-23 13:55:23,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.390625) internal successors, (89), 79 states have internal predecessors, (89), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-23 13:55:23,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 133 transitions. [2022-11-23 13:55:23,157 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 133 transitions. Word has length 21 [2022-11-23 13:55:23,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:23,158 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 133 transitions. [2022-11-23 13:55:23,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:55:23,158 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 133 transitions. [2022-11-23 13:55:23,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 13:55:23,159 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:23,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:23,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:55:23,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:23,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:23,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1260550476, now seen corresponding path program 1 times [2022-11-23 13:55:23,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:23,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588345472] [2022-11-23 13:55:23,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:23,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:55:23,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:23,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588345472] [2022-11-23 13:55:23,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588345472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:23,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:23,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:55:23,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013227183] [2022-11-23 13:55:23,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:23,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:55:23,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:23,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:55:23,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:55:23,336 INFO L87 Difference]: Start difference. First operand 101 states and 133 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:55:23,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:23,541 INFO L93 Difference]: Finished difference Result 295 states and 392 transitions. [2022-11-23 13:55:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 13:55:23,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-23 13:55:23,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:23,544 INFO L225 Difference]: With dead ends: 295 [2022-11-23 13:55:23,544 INFO L226 Difference]: Without dead ends: 196 [2022-11-23 13:55:23,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 13:55:23,547 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 45 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:23,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 278 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:55:23,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-23 13:55:23,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 188. [2022-11-23 13:55:23,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 119 states have (on average 1.3697478991596639) internal successors, (163), 146 states have internal predecessors, (163), 42 states have call successors, (42), 26 states have call predecessors, (42), 26 states have return successors, (42), 28 states have call predecessors, (42), 42 states have call successors, (42) [2022-11-23 13:55:23,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 247 transitions. [2022-11-23 13:55:23,606 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 247 transitions. Word has length 24 [2022-11-23 13:55:23,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:23,607 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 247 transitions. [2022-11-23 13:55:23,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:55:23,607 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 247 transitions. [2022-11-23 13:55:23,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 13:55:23,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:23,610 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:23,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:55:23,610 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:23,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:23,611 INFO L85 PathProgramCache]: Analyzing trace with hash 653436656, now seen corresponding path program 1 times [2022-11-23 13:55:23,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:23,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748093072] [2022-11-23 13:55:23,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:23,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:23,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:55:23,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:23,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748093072] [2022-11-23 13:55:23,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748093072] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:23,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:23,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:55:23,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686334118] [2022-11-23 13:55:23,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:23,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:55:23,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:23,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:55:23,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:55:23,751 INFO L87 Difference]: Start difference. First operand 188 states and 247 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 13:55:23,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:23,850 INFO L93 Difference]: Finished difference Result 287 states and 382 transitions. [2022-11-23 13:55:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:55:23,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-23 13:55:23,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:23,866 INFO L225 Difference]: With dead ends: 287 [2022-11-23 13:55:23,869 INFO L226 Difference]: Without dead ends: 285 [2022-11-23 13:55:23,870 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 13:55:23,871 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 44 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:23,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 115 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:55:23,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2022-11-23 13:55:23,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2022-11-23 13:55:23,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 180 states have (on average 1.3722222222222222) internal successors, (247), 221 states have internal predecessors, (247), 64 states have call successors, (64), 40 states have call predecessors, (64), 40 states have return successors, (68), 43 states have call predecessors, (68), 64 states have call successors, (68) [2022-11-23 13:55:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 379 transitions. [2022-11-23 13:55:23,934 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 379 transitions. Word has length 27 [2022-11-23 13:55:23,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:23,934 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 379 transitions. [2022-11-23 13:55:23,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 13:55:23,935 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 379 transitions. [2022-11-23 13:55:23,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-23 13:55:23,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:23,948 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 13:55:23,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:55:23,948 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:23,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:23,950 INFO L85 PathProgramCache]: Analyzing trace with hash 434397465, now seen corresponding path program 1 times [2022-11-23 13:55:23,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:23,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620222472] [2022-11-23 13:55:23,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:23,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:24,236 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:55:24,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:24,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620222472] [2022-11-23 13:55:24,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620222472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:24,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:24,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:55:24,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457071662] [2022-11-23 13:55:24,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:24,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:55:24,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:24,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:55:24,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:55:24,241 INFO L87 Difference]: Start difference. First operand 285 states and 379 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 13:55:24,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:24,641 INFO L93 Difference]: Finished difference Result 934 states and 1260 transitions. [2022-11-23 13:55:24,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 13:55:24,642 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2022-11-23 13:55:24,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:24,645 INFO L225 Difference]: With dead ends: 934 [2022-11-23 13:55:24,646 INFO L226 Difference]: Without dead ends: 651 [2022-11-23 13:55:24,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-23 13:55:24,655 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 129 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:24,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 173 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:55:24,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2022-11-23 13:55:24,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 604. [2022-11-23 13:55:24,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 406 states have (on average 1.2635467980295567) internal successors, (513), 445 states have internal predecessors, (513), 98 states have call successors, (98), 83 states have call predecessors, (98), 99 states have return successors, (144), 99 states have call predecessors, (144), 98 states have call successors, (144) [2022-11-23 13:55:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 755 transitions. [2022-11-23 13:55:24,762 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 755 transitions. Word has length 48 [2022-11-23 13:55:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:24,763 INFO L495 AbstractCegarLoop]: Abstraction has 604 states and 755 transitions. [2022-11-23 13:55:24,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 13:55:24,763 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 755 transitions. [2022-11-23 13:55:24,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-23 13:55:24,765 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:24,766 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:24,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 13:55:24,766 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:24,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:24,767 INFO L85 PathProgramCache]: Analyzing trace with hash -2099161350, now seen corresponding path program 1 times [2022-11-23 13:55:24,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:24,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201512933] [2022-11-23 13:55:24,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:24,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:24,816 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:55:24,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:24,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201512933] [2022-11-23 13:55:24,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201512933] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:24,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:24,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:55:24,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766139732] [2022-11-23 13:55:24,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:24,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:55:24,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:24,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:55:24,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:55:24,819 INFO L87 Difference]: Start difference. First operand 604 states and 755 transitions. Second operand has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 13:55:24,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:24,956 INFO L93 Difference]: Finished difference Result 971 states and 1215 transitions. [2022-11-23 13:55:24,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:55:24,956 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 56 [2022-11-23 13:55:24,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:24,959 INFO L225 Difference]: With dead ends: 971 [2022-11-23 13:55:24,960 INFO L226 Difference]: Without dead ends: 369 [2022-11-23 13:55:24,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:55:24,970 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 85 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:24,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 120 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:55:24,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2022-11-23 13:55:25,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 352. [2022-11-23 13:55:25,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 239 states have (on average 1.2510460251046025) internal successors, (299), 261 states have internal predecessors, (299), 55 states have call successors, (55), 49 states have call predecessors, (55), 57 states have return successors, (78), 57 states have call predecessors, (78), 55 states have call successors, (78) [2022-11-23 13:55:25,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 432 transitions. [2022-11-23 13:55:25,033 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 432 transitions. Word has length 56 [2022-11-23 13:55:25,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:25,034 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 432 transitions. [2022-11-23 13:55:25,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.666666666666666) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-23 13:55:25,034 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 432 transitions. [2022-11-23 13:55:25,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-23 13:55:25,037 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:25,037 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 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] [2022-11-23 13:55:25,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 13:55:25,037 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:25,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:25,038 INFO L85 PathProgramCache]: Analyzing trace with hash -37876805, now seen corresponding path program 1 times [2022-11-23 13:55:25,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:25,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28776817] [2022-11-23 13:55:25,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:25,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:25,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:25,200 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 13:55:25,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:25,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28776817] [2022-11-23 13:55:25,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28776817] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:55:25,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82775370] [2022-11-23 13:55:25,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:25,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:55:25,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:55:25,207 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:55:25,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:55:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:25,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 13:55:25,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:55:25,466 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:55:25,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:55:25,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82775370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:25,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:55:25,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-23 13:55:25,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465099332] [2022-11-23 13:55:25,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:25,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:55:25,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:25,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:55:25,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-23 13:55:25,471 INFO L87 Difference]: Start difference. First operand 352 states and 432 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-23 13:55:25,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:25,589 INFO L93 Difference]: Finished difference Result 704 states and 863 transitions. [2022-11-23 13:55:25,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:55:25,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 60 [2022-11-23 13:55:25,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:25,592 INFO L225 Difference]: With dead ends: 704 [2022-11-23 13:55:25,592 INFO L226 Difference]: Without dead ends: 354 [2022-11-23 13:55:25,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-23 13:55:25,595 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 31 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:25,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 120 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:55:25,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2022-11-23 13:55:25,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 352. [2022-11-23 13:55:25,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 239 states have (on average 1.2301255230125523) internal successors, (294), 261 states have internal predecessors, (294), 55 states have call successors, (55), 49 states have call predecessors, (55), 57 states have return successors, (70), 57 states have call predecessors, (70), 55 states have call successors, (70) [2022-11-23 13:55:25,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 419 transitions. [2022-11-23 13:55:25,644 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 419 transitions. Word has length 60 [2022-11-23 13:55:25,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:25,645 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 419 transitions. [2022-11-23 13:55:25,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-23 13:55:25,646 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 419 transitions. [2022-11-23 13:55:25,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 13:55:25,648 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:25,648 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:25,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 13:55:25,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:55:25,855 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:25,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:25,855 INFO L85 PathProgramCache]: Analyzing trace with hash 479242136, now seen corresponding path program 1 times [2022-11-23 13:55:25,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:25,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695083955] [2022-11-23 13:55:25,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:25,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:26,351 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 13:55:26,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:26,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695083955] [2022-11-23 13:55:26,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695083955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:26,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:26,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 13:55:26,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246672679] [2022-11-23 13:55:26,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:26,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 13:55:26,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:26,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 13:55:26,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-23 13:55:26,354 INFO L87 Difference]: Start difference. First operand 352 states and 419 transitions. Second operand has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2022-11-23 13:55:27,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:27,232 INFO L93 Difference]: Finished difference Result 926 states and 1130 transitions. [2022-11-23 13:55:27,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 13:55:27,233 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) Word has length 62 [2022-11-23 13:55:27,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:27,236 INFO L225 Difference]: With dead ends: 926 [2022-11-23 13:55:27,236 INFO L226 Difference]: Without dead ends: 576 [2022-11-23 13:55:27,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=376, Unknown=0, NotChecked=0, Total=506 [2022-11-23 13:55:27,239 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 270 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:27,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 343 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-23 13:55:27,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2022-11-23 13:55:27,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 462. [2022-11-23 13:55:27,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 321 states have (on average 1.2274143302180685) internal successors, (394), 345 states have internal predecessors, (394), 69 states have call successors, (69), 63 states have call predecessors, (69), 71 states have return successors, (84), 71 states have call predecessors, (84), 69 states have call successors, (84) [2022-11-23 13:55:27,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 547 transitions. [2022-11-23 13:55:27,329 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 547 transitions. Word has length 62 [2022-11-23 13:55:27,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:27,331 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 547 transitions. [2022-11-23 13:55:27,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.0) internal successors, (45), 9 states have internal predecessors, (45), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 3 states have call predecessors, (7), 5 states have call successors, (7) [2022-11-23 13:55:27,331 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 547 transitions. [2022-11-23 13:55:27,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-23 13:55:27,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:27,333 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:27,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 13:55:27,333 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:27,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:27,334 INFO L85 PathProgramCache]: Analyzing trace with hash -517691219, now seen corresponding path program 1 times [2022-11-23 13:55:27,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:27,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699391333] [2022-11-23 13:55:27,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:27,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:27,469 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 13:55:27,469 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:27,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699391333] [2022-11-23 13:55:27,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699391333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:27,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:27,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:55:27,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058411964] [2022-11-23 13:55:27,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:27,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:55:27,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:27,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:55:27,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:55:27,472 INFO L87 Difference]: Start difference. First operand 462 states and 547 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 13:55:27,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:27,606 INFO L93 Difference]: Finished difference Result 664 states and 790 transitions. [2022-11-23 13:55:27,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:55:27,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2022-11-23 13:55:27,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:27,612 INFO L225 Difference]: With dead ends: 664 [2022-11-23 13:55:27,612 INFO L226 Difference]: Without dead ends: 431 [2022-11-23 13:55:27,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:55:27,614 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 47 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:27,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 163 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:55:27,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2022-11-23 13:55:27,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 414. [2022-11-23 13:55:27,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 287 states have (on average 1.2125435540069687) internal successors, (348), 309 states have internal predecessors, (348), 62 states have call successors, (62), 57 states have call predecessors, (62), 64 states have return successors, (72), 63 states have call predecessors, (72), 62 states have call successors, (72) [2022-11-23 13:55:27,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 482 transitions. [2022-11-23 13:55:27,678 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 482 transitions. Word has length 65 [2022-11-23 13:55:27,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:27,681 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 482 transitions. [2022-11-23 13:55:27,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 13:55:27,682 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 482 transitions. [2022-11-23 13:55:27,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 13:55:27,684 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:27,684 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:27,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 13:55:27,685 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:27,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:27,686 INFO L85 PathProgramCache]: Analyzing trace with hash 268936039, now seen corresponding path program 1 times [2022-11-23 13:55:27,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:27,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074111139] [2022-11-23 13:55:27,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:27,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:27,891 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 13:55:27,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:27,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074111139] [2022-11-23 13:55:27,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074111139] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:55:27,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494284087] [2022-11-23 13:55:27,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:27,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:55:27,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:55:27,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:55:27,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 13:55:28,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:28,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-23 13:55:28,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:55:28,128 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:55:28,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:55:28,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494284087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:28,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:55:28,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2022-11-23 13:55:28,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013484374] [2022-11-23 13:55:28,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:28,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 13:55:28,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:28,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 13:55:28,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-23 13:55:28,131 INFO L87 Difference]: Start difference. First operand 414 states and 482 transitions. Second operand has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-23 13:55:28,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:28,516 INFO L93 Difference]: Finished difference Result 843 states and 1013 transitions. [2022-11-23 13:55:28,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 13:55:28,516 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 70 [2022-11-23 13:55:28,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:28,519 INFO L225 Difference]: With dead ends: 843 [2022-11-23 13:55:28,520 INFO L226 Difference]: Without dead ends: 599 [2022-11-23 13:55:28,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2022-11-23 13:55:28,521 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 56 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:28,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 559 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:55:28,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2022-11-23 13:55:28,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 589. [2022-11-23 13:55:28,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 411 states have (on average 1.2043795620437956) internal successors, (495), 439 states have internal predecessors, (495), 87 states have call successors, (87), 81 states have call predecessors, (87), 90 states have return successors, (109), 87 states have call predecessors, (109), 87 states have call successors, (109) [2022-11-23 13:55:28,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 691 transitions. [2022-11-23 13:55:28,607 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 691 transitions. Word has length 70 [2022-11-23 13:55:28,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:28,607 INFO L495 AbstractCegarLoop]: Abstraction has 589 states and 691 transitions. [2022-11-23 13:55:28,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 3 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-23 13:55:28,608 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 691 transitions. [2022-11-23 13:55:28,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-11-23 13:55:28,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:28,610 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:28,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 13:55:28,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:55:28,816 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:28,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:28,817 INFO L85 PathProgramCache]: Analyzing trace with hash -906160309, now seen corresponding path program 1 times [2022-11-23 13:55:28,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:28,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583553401] [2022-11-23 13:55:28,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:28,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:29,090 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 13:55:29,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:29,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583553401] [2022-11-23 13:55:29,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583553401] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:55:29,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222509695] [2022-11-23 13:55:29,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:29,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:55:29,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:55:29,093 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:55:29,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 13:55:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:29,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-23 13:55:29,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:55:29,276 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-23 13:55:29,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:55:29,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222509695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:29,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:55:29,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 16 [2022-11-23 13:55:29,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106206559] [2022-11-23 13:55:29,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:29,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 13:55:29,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:29,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 13:55:29,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-23 13:55:29,279 INFO L87 Difference]: Start difference. First operand 589 states and 691 transitions. Second operand has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 13:55:29,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:29,622 INFO L93 Difference]: Finished difference Result 1099 states and 1305 transitions. [2022-11-23 13:55:29,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 13:55:29,622 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 73 [2022-11-23 13:55:29,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:29,623 INFO L225 Difference]: With dead ends: 1099 [2022-11-23 13:55:29,623 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 13:55:29,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2022-11-23 13:55:29,626 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 56 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:29,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 344 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:55:29,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 13:55:29,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 13:55:29,627 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 13:55:29,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 13:55:29,628 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2022-11-23 13:55:29,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:29,628 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 13:55:29,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 13:55:29,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 13:55:29,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 13:55:29,637 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 13:55:29,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 13:55:29,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:55:29,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 13:55:36,561 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 362 369) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (= 0 ~systemActive~0)) [2022-11-23 13:55:36,562 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 362 369) no Hoare annotation was computed. [2022-11-23 13:55:36,562 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 295 301) no Hoare annotation was computed. [2022-11-23 13:55:36,562 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 295 301) the Hoare annotation is: true [2022-11-23 13:55:36,562 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 124 135) the Hoare annotation is: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse5 (not (= ~pumpRunning~0 0))) (.cse4 (not .cse1)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~pumpRunning~0))) (.cse6 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not .cse2) .cse3) (or .cse4 .cse5 .cse2 .cse0 .cse6) (or .cse4 .cse5 .cse2 .cse6 (not (= 0 ~systemActive~0))) (or .cse4 .cse2 .cse0 .cse3 .cse6)))) [2022-11-23 13:55:36,563 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 124 135) no Hoare annotation was computed. [2022-11-23 13:55:36,563 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 845 874) no Hoare annotation was computed. [2022-11-23 13:55:36,563 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 845 874) the Hoare annotation is: true [2022-11-23 13:55:36,563 INFO L899 garLoopResultBuilder]: For program point L859(lines 859 863) no Hoare annotation was computed. [2022-11-23 13:55:36,563 INFO L902 garLoopResultBuilder]: At program point L859-1(lines 859 863) the Hoare annotation is: true [2022-11-23 13:55:36,563 INFO L902 garLoopResultBuilder]: At program point L855-2(lines 855 869) the Hoare annotation is: true [2022-11-23 13:55:36,564 INFO L902 garLoopResultBuilder]: At program point L851(line 851) the Hoare annotation is: true [2022-11-23 13:55:36,564 INFO L899 garLoopResultBuilder]: For program point L851-1(line 851) no Hoare annotation was computed. [2022-11-23 13:55:36,564 INFO L902 garLoopResultBuilder]: At program point L870(lines 845 874) the Hoare annotation is: true [2022-11-23 13:55:36,564 INFO L899 garLoopResultBuilder]: For program point L866(line 866) no Hoare annotation was computed. [2022-11-23 13:55:36,564 INFO L899 garLoopResultBuilder]: For program point L275-1(lines 274 293) no Hoare annotation was computed. [2022-11-23 13:55:36,564 INFO L899 garLoopResultBuilder]: For program point L337(lines 337 345) no Hoare annotation was computed. [2022-11-23 13:55:36,564 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 350) no Hoare annotation was computed. [2022-11-23 13:55:36,565 INFO L895 garLoopResultBuilder]: At program point L375(line 375) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) (or .cse2 (= ~methAndRunningLastTime~0 0) .cse0 .cse1) (or .cse3 .cse2 .cse0) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-23 13:55:36,565 INFO L895 garLoopResultBuilder]: At program point L375-1(line 375) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isMethaneAlarm_#t~ret17#1| ~methaneLevelCritical~0))) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-23 13:55:36,565 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 84) no Hoare annotation was computed. [2022-11-23 13:55:36,566 INFO L895 garLoopResultBuilder]: At program point L70(lines 70 87) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| ~methaneLevelCritical~0))) (let ((.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (= 1 ~systemActive~0))) (.cse6 (not (<= 1 |old(~pumpRunning~0)|))) (.cse8 (and .cse1 (or .cse0 .cse10 (= ~waterLevel~0 1)) .cse9)) (.cse7 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or .cse0 .cse2 .cse4 .cse3 .cse5) (or .cse2 .cse4 .cse3 .cse6 .cse5) (or .cse0 .cse2 .cse4 .cse5 .cse7) (or .cse0 .cse2 .cse8 .cse3 (and (<= 1 ~pumpRunning~0) .cse4 .cse9 .cse10)) (let ((.cse11 (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0))) (or .cse3 (and .cse1 .cse9 .cse11 (not (= |timeShift_processEnvironment_~tmp~3#1| 0))) .cse6 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse9 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0) .cse11))) (or .cse0 .cse8 .cse7)))) [2022-11-23 13:55:36,566 INFO L895 garLoopResultBuilder]: At program point L70-1(lines 62 90) the Hoare annotation is: (let ((.cse15 (= ~methaneLevelCritical~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse9 (or .cse0 .cse13 (= ~waterLevel~0 1))) (.cse14 (= 1 ~systemActive~0)) (.cse12 (<= 1 ~pumpRunning~0)) (.cse16 (not .cse15)) (.cse5 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| ~methaneLevelCritical~0))) (let ((.cse8 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse10 (and .cse12 .cse16 .cse5 .cse13)) (.cse11 (and .cse7 .cse1 .cse4 .cse9 .cse14 .cse16 .cse5)) (.cse3 (not .cse14))) (and (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (let ((.cse6 (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0))) (or (and .cse1 .cse4 .cse5 .cse6 (not (= |timeShift_processEnvironment_~tmp~3#1| 0))) .cse3 (not (<= 1 |old(~pumpRunning~0)|)) (and .cse7 .cse4 .cse5 .cse8 .cse6))) (or .cse0 (and .cse1 .cse4 .cse9 .cse5) (not (= 0 ~systemActive~0))) (or .cse0 .cse2 .cse10 .cse11 (and .cse12 .cse4 .cse8 .cse13) .cse3 (and .cse7 .cse1 .cse4 .cse9 .cse14 .cse8)) (or .cse0 .cse2 .cse10 .cse11 .cse15 .cse3))))) [2022-11-23 13:55:36,566 INFO L895 garLoopResultBuilder]: At program point L343(line 343) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 0) (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0))) (or .cse2 (= ~methAndRunningLastTime~0 0) .cse0 .cse1) (or .cse3 .cse2 .cse0) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-23 13:55:36,567 INFO L895 garLoopResultBuilder]: At program point L339(line 339) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0) (not (= |timeShift_processEnvironment_~tmp~3#1| 0)))) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-23 13:55:36,567 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2022-11-23 13:55:36,567 INFO L895 garLoopResultBuilder]: At program point L839(line 839) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse1 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-23 13:55:36,567 INFO L895 garLoopResultBuilder]: At program point L348(line 348) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|))) (or .cse1 (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-23 13:55:36,568 INFO L895 garLoopResultBuilder]: At program point L348-1(lines 329 353) the Hoare annotation is: (let ((.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (= ~pumpRunning~0 0))) (and (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= ~waterLevel~0 1))) (or (and (<= 1 ~pumpRunning~0) (not .cse0) .cse1 .cse2) .cse3 .cse4 .cse5 (and .cse6 .cse1 (or .cse2 .cse0)))) (or .cse4 .cse1 .cse5 .cse7) (or .cse3 (not (= 0 ~systemActive~0))) (let ((.cse8 (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0))) (or .cse5 .cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methaneLevelCritical~0 0) .cse8) (and .cse6 .cse8 (not (= |timeShift_processEnvironment_~tmp~3#1| 0))))))) [2022-11-23 13:55:36,568 INFO L899 garLoopResultBuilder]: For program point L282-1(lines 282 288) no Hoare annotation was computed. [2022-11-23 13:55:36,568 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 271 294) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= 0 ~systemActive~0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5)) (or .cse0 (and .cse3 .cse5) .cse6) (or .cse0 .cse1 .cse4 (not (= ~methaneLevelCritical~0 0)) .cse6) (or .cse1 .cse4 .cse2 .cse7) (or .cse2 .cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5)))) [2022-11-23 13:55:36,568 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 271 294) no Hoare annotation was computed. [2022-11-23 13:55:36,569 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 839) no Hoare annotation was computed. [2022-11-23 13:55:36,569 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~waterLevel~0 1))) (let ((.cse2 (or .cse0 .cse6 .cse4)) (.cse3 (not (= 0 ~systemActive~0))) (.cse7 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse8 (not (= 1 ~systemActive~0))) (.cse10 (not (<= 1 |old(~pumpRunning~0)|))) (.cse9 (= ~methaneLevelCritical~0 0)) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and .cse1 .cse2) .cse3) (or (and (<= 1 ~pumpRunning~0) (not .cse4) .cse5 .cse6) .cse0 .cse7 .cse8 (and .cse1 .cse5 .cse2)) (or .cse0 .cse7 .cse5 (not .cse9) .cse3) (or .cse7 .cse5 .cse8 .cse10) (let ((.cse11 (= |timeShift_processEnvironment_~tmp~3#1| ~methaneLevelCritical~0))) (or .cse8 .cse10 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse9 .cse11) (and .cse1 .cse11 (not (= |timeShift_processEnvironment_~tmp~3#1| 0)))))))) [2022-11-23 13:55:36,569 INFO L899 garLoopResultBuilder]: For program point L68-1(line 68) no Hoare annotation was computed. [2022-11-23 13:55:36,569 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 136 144) the Hoare annotation is: true [2022-11-23 13:55:36,570 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 136 144) no Hoare annotation was computed. [2022-11-23 13:55:36,570 INFO L902 garLoopResultBuilder]: At program point L259(lines 196 263) the Hoare annotation is: true [2022-11-23 13:55:36,570 INFO L899 garLoopResultBuilder]: For program point L226(lines 226 232) no Hoare annotation was computed. [2022-11-23 13:55:36,570 INFO L899 garLoopResultBuilder]: For program point L226-1(lines 226 232) no Hoare annotation was computed. [2022-11-23 13:55:36,570 INFO L899 garLoopResultBuilder]: For program point L449(lines 449 455) no Hoare annotation was computed. [2022-11-23 13:55:36,570 INFO L895 garLoopResultBuilder]: At program point L449-1(lines 449 455) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (and .cse0 (= ~methAndRunningLastTime~0 0) .cse1))) [2022-11-23 13:55:36,571 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 13:55:36,571 INFO L895 garLoopResultBuilder]: At program point L218(line 218) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse2 (= 0 ~systemActive~0)))) [2022-11-23 13:55:36,571 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 13:55:36,571 INFO L895 garLoopResultBuilder]: At program point L256(lines 205 257) the Hoare annotation is: false [2022-11-23 13:55:36,571 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 250) no Hoare annotation was computed. [2022-11-23 13:55:36,571 INFO L895 garLoopResultBuilder]: At program point L244-2(lines 236 251) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1) (and .cse2 .cse1 (= 0 ~systemActive~0)) (and .cse2 (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-11-23 13:55:36,572 INFO L899 garLoopResultBuilder]: For program point L207(lines 206 255) no Hoare annotation was computed. [2022-11-23 13:55:36,572 INFO L895 garLoopResultBuilder]: At program point L236(lines 236 251) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1) (and .cse2 .cse3 .cse0 .cse1) (and .cse2 .cse3 .cse1 (= 0 ~systemActive~0)))) [2022-11-23 13:55:36,572 INFO L895 garLoopResultBuilder]: At program point L228(line 228) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse2 (= 0 ~systemActive~0)))) [2022-11-23 13:55:36,572 INFO L895 garLoopResultBuilder]: At program point L451(line 451) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-11-23 13:55:36,572 INFO L895 garLoopResultBuilder]: At program point L930(lines 930 937) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 13:55:36,573 INFO L902 garLoopResultBuilder]: At program point L930-2(lines 930 937) the Hoare annotation is: true [2022-11-23 13:55:36,573 INFO L895 garLoopResultBuilder]: At program point L253(lines 206 255) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (and .cse0 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse1 .cse2) (and .cse4 .cse3 .cse2 (= 0 ~systemActive~0)))) [2022-11-23 13:55:36,573 INFO L899 garLoopResultBuilder]: For program point L216(lines 216 222) no Hoare annotation was computed. [2022-11-23 13:55:36,573 INFO L899 garLoopResultBuilder]: For program point L216-1(lines 216 222) no Hoare annotation was computed. [2022-11-23 13:55:36,573 INFO L899 garLoopResultBuilder]: For program point L322-1(lines 303 327) no Hoare annotation was computed. [2022-11-23 13:55:36,574 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 303 327) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 13:55:36,574 INFO L895 garLoopResultBuilder]: At program point L317(line 317) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (or (not (= ~waterLevel~0 1)) (and (<= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0) (< 0 (+ |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 1))))) (not (= ~methAndRunningLastTime~0 0))))) [2022-11-23 13:55:36,574 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 303 327) no Hoare annotation was computed. [2022-11-23 13:55:36,574 INFO L895 garLoopResultBuilder]: At program point L311(lines 311 319) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= ~pumpRunning~0 0) (or (not (= ~waterLevel~0 1)) (and (<= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0) (< 0 (+ |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 1))))) (not (= ~methAndRunningLastTime~0 0))))) [2022-11-23 13:55:36,574 INFO L895 garLoopResultBuilder]: At program point L307(lines 307 324) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 13:55:36,575 INFO L895 garLoopResultBuilder]: At program point L322(line 322) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (= ~methAndRunningLastTime~0 0))) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (= ~methaneLevelCritical~0 0))))) [2022-11-23 13:55:36,575 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 112 123) no Hoare annotation was computed. [2022-11-23 13:55:36,575 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 112 123) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 ~pumpRunning~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (not (= 0 ~systemActive~0))) (or (= ~methaneLevelCritical~0 0) .cse1 .cse4 .cse2) (or .cse1 .cse4 .cse2 .cse3))) [2022-11-23 13:55:36,578 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:36,581 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:55:36,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:55:36 BoogieIcfgContainer [2022-11-23 13:55:36,632 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:55:36,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:55:36,635 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:55:36,635 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:55:36,636 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:55:22" (3/4) ... [2022-11-23 13:55:36,639 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 13:55:36,646 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-23 13:55:36,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 13:55:36,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 13:55:36,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 13:55:36,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 13:55:36,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 13:55:36,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 13:55:36,648 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 13:55:36,661 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2022-11-23 13:55:36,662 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-23 13:55:36,662 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-23 13:55:36,663 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 13:55:36,663 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 13:55:36,690 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) [2022-11-23 13:55:36,692 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((1 <= pumpRunning && !(waterLevel == 1)) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && !(tmp == 0))) [2022-11-23 13:55:36,692 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) [2022-11-23 13:55:36,693 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel))) && (((!(1 == systemActive) || (((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && !(tmp == 0))) || !(1 <= \old(pumpRunning))) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0) && tmp == methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(0 == systemActive)) [2022-11-23 13:55:36,694 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && aux-isMethaneLevelCritical()-aux == methaneLevelCritical))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-23 13:55:36,694 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && (((((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && !(tmp == 0)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || ((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == 0) && tmp == methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(0 == systemActive))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel)) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && tmp == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel)) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) || methaneLevelCritical == 0) || !(1 == systemActive)) [2022-11-23 13:55:36,695 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-23 13:55:36,696 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && (!(waterLevel == 1) || (tmp <= 0 && 0 < tmp + 1)))) || !(methAndRunningLastTime == 0)) [2022-11-23 13:55:36,743 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 13:55:36,743 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:55:36,744 INFO L158 Benchmark]: Toolchain (without parser) took 16005.31ms. Allocated memory was 163.6MB in the beginning and 285.2MB in the end (delta: 121.6MB). Free memory was 121.6MB in the beginning and 99.9MB in the end (delta: 21.7MB). Peak memory consumption was 147.1MB. Max. memory is 16.1GB. [2022-11-23 13:55:36,744 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 163.6MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:55:36,745 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.17ms. Allocated memory is still 163.6MB. Free memory was 121.2MB in the beginning and 102.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 13:55:36,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.73ms. Allocated memory is still 163.6MB. Free memory was 102.3MB in the beginning and 100.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:55:36,746 INFO L158 Benchmark]: Boogie Preprocessor took 27.74ms. Allocated memory is still 163.6MB. Free memory was 100.2MB in the beginning and 98.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:55:36,746 INFO L158 Benchmark]: RCFGBuilder took 717.23ms. Allocated memory is still 163.6MB. Free memory was 98.5MB in the beginning and 75.5MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 13:55:36,747 INFO L158 Benchmark]: TraceAbstraction took 14495.34ms. Allocated memory was 163.6MB in the beginning and 285.2MB in the end (delta: 121.6MB). Free memory was 74.5MB in the beginning and 105.1MB in the end (delta: -30.7MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. [2022-11-23 13:55:36,748 INFO L158 Benchmark]: Witness Printer took 110.53ms. Allocated memory is still 285.2MB. Free memory was 105.1MB in the beginning and 99.9MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 13:55:36,750 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 163.6MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.17ms. Allocated memory is still 163.6MB. Free memory was 121.2MB in the beginning and 102.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.73ms. Allocated memory is still 163.6MB. Free memory was 102.3MB in the beginning and 100.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.74ms. Allocated memory is still 163.6MB. Free memory was 100.2MB in the beginning and 98.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 717.23ms. Allocated memory is still 163.6MB. Free memory was 98.5MB in the beginning and 75.5MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 14495.34ms. Allocated memory was 163.6MB in the beginning and 285.2MB in the end (delta: 121.6MB). Free memory was 74.5MB in the beginning and 105.1MB in the end (delta: -30.7MB). Peak memory consumption was 93.5MB. Max. memory is 16.1GB. * Witness Printer took 110.53ms. Allocated memory is still 285.2MB. Free memory was 105.1MB in the beginning and 99.9MB 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: 839]: 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 9 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.4s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 866 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 840 mSDsluCounter, 2500 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1637 mSDsCounter, 214 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1562 IncrementalHoareTripleChecker+Invalid, 1776 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 214 mSolverCounterUnsat, 863 mSDtfsCounter, 1562 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=604occurred in iteration=6, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 218 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 1714 PreInvPairs, 1915 NumberOfFragments, 1697 HoareAnnotationTreeSize, 1714 FomulaSimplifications, 3822 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 38 FomulaSimplificationsInter, 25361 FormulaSimplificationTreeSizeReductionInter, 5.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 744 NumberOfCodeBlocks, 744 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 729 ConstructedInterpolants, 0 QuantifiedInterpolants, 1662 SizeOfPredicates, 13 NumberOfNonLiveVariables, 920 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 230/256 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: 206]: Loop Invariant Derived loop invariant: (((((1 <= pumpRunning && 1 == systemActive) && !(methaneLevelCritical == 0)) && splverifierCounter == 0) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 == systemActive) - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 845]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 329]: Loop Invariant Derived loop invariant: (((((((((1 <= pumpRunning && !(waterLevel == 1)) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((pumpRunning == \old(pumpRunning) && methaneLevelCritical == 0) && tmp == methaneLevelCritical)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && !(tmp == 0))) - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: (((1 <= pumpRunning && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 == systemActive) - InvariantResult [Line: 449]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && !(0 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 930]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel))) && (((!(1 == systemActive) || (((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && !(tmp == 0))) || !(1 <= \old(pumpRunning))) || (((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0) && tmp == methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(0 == systemActive)) - InvariantResult [Line: 855]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && (((((((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) && !(tmp == 0)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || ((((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical) && tmp == 0) && tmp == methaneLevelCritical))) && ((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || !(0 == systemActive))) && ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel)) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && tmp == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && \old(waterLevel) == waterLevel)) || ((((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) || methaneLevelCritical == 0) || !(1 == systemActive)) - InvariantResult [Line: 930]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 311]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && (!(waterLevel == 1) || (tmp <= 0 && 0 < tmp + 1)))) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 375]: Loop Invariant Derived loop invariant: (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && aux-isMethaneLevelCritical()-aux == methaneLevelCritical))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) RESULT: Ultimate proved your program to be correct! [2022-11-23 13:55:36,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4e6bfc4c-42bd-43d7-93fb-aad52307b309/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