./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI --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 b18268074b12ff6db81668668ee2d33af663d931f7be534d8799200934e1992a --- 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-5e519f3 [2022-11-03 01:46:24,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:46:24,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:46:24,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:46:24,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:46:24,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:46:24,103 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:46:24,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:46:24,110 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:46:24,118 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:46:24,119 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:46:24,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:46:24,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:46:24,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:46:24,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:46:24,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:46:24,124 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:46:24,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:46:24,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:46:24,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:46:24,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:46:24,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:46:24,132 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:46:24,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:46:24,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:46:24,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:46:24,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:46:24,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:46:24,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:46:24,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:46:24,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:46:24,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:46:24,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:46:24,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:46:24,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:46:24,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:46:24,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:46:24,144 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:46:24,144 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:46:24,145 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:46:24,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:46:24,147 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:46:24,169 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:46:24,169 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:46:24,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:46:24,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:46:24,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:46:24,171 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:46:24,171 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:46:24,171 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:46:24,172 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:46:24,172 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:46:24,172 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:46:24,172 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:46:24,172 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:46:24,173 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:46:24,173 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:46:24,173 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:46:24,173 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:46:24,173 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:46:24,174 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:46:24,174 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:46:24,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:46:24,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:46:24,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:46:24,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:46:24,175 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:46:24,175 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:46:24,176 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:46:24,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:46:24,176 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:46:24,176 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:46:24,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:46:24,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:46:24,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:46:24,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:46:24,177 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:46:24,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:46:24,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:46:24,178 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:46:24,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:46:24,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:46:24,179 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:46:24,179 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_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b18268074b12ff6db81668668ee2d33af663d931f7be534d8799200934e1992a [2022-11-03 01:46:24,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:46:24,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:46:24,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:46:24,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:46:24,493 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:46:24,495 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2022-11-03 01:46:24,594 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/data/20e18261d/cd3aefd855a74bbab77f71449181f595/FLAG4baa1d2f8 [2022-11-03 01:46:25,115 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:46:25,116 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c [2022-11-03 01:46:25,133 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/data/20e18261d/cd3aefd855a74bbab77f71449181f595/FLAG4baa1d2f8 [2022-11-03 01:46:25,437 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/data/20e18261d/cd3aefd855a74bbab77f71449181f595 [2022-11-03 01:46:25,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:46:25,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:46:25,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:46:25,443 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:46:25,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:46:25,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:46:25" (1/1) ... [2022-11-03 01:46:25,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3380e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:25, skipping insertion in model container [2022-11-03 01:46:25,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:46:25" (1/1) ... [2022-11-03 01:46:25,466 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:46:25,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:46:25,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c[2897,2910] [2022-11-03 01:46:25,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:46:25,888 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:46:25,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/sv-benchmarks/c/product-lines/minepump_spec5_product63.cil.c[2897,2910] [2022-11-03 01:46:25,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:46:26,008 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:46:26,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26 WrapperNode [2022-11-03 01:46:26,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:46:26,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:46:26,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:46:26,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:46:26,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (1/1) ... [2022-11-03 01:46:26,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (1/1) ... [2022-11-03 01:46:26,101 INFO L138 Inliner]: procedures = 60, calls = 165, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 299 [2022-11-03 01:46:26,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:46:26,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:46:26,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:46:26,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:46:26,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (1/1) ... [2022-11-03 01:46:26,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (1/1) ... [2022-11-03 01:46:26,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (1/1) ... [2022-11-03 01:46:26,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (1/1) ... [2022-11-03 01:46:26,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (1/1) ... [2022-11-03 01:46:26,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (1/1) ... [2022-11-03 01:46:26,165 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (1/1) ... [2022-11-03 01:46:26,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (1/1) ... [2022-11-03 01:46:26,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:46:26,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:46:26,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:46:26,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:46:26,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (1/1) ... [2022-11-03 01:46:26,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:46:26,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:46:26,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:46:26,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:46:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:46:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 01:46:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 01:46:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 01:46:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 01:46:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 01:46:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 01:46:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 01:46:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 01:46:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 01:46:26,277 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 01:46:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 01:46:26,277 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 01:46:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-03 01:46:26,278 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-03 01:46:26,278 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 01:46:26,279 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 01:46:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 01:46:26,279 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 01:46:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:46:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 01:46:26,280 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 01:46:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:46:26,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:46:26,372 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:46:26,374 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:46:26,873 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:46:27,098 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:46:27,098 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 01:46:27,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:46:27 BoogieIcfgContainer [2022-11-03 01:46:27,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:46:27,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:46:27,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:46:27,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:46:27,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:46:25" (1/3) ... [2022-11-03 01:46:27,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7accbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:46:27, skipping insertion in model container [2022-11-03 01:46:27,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:46:26" (2/3) ... [2022-11-03 01:46:27,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7accbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:46:27, skipping insertion in model container [2022-11-03 01:46:27,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:46:27" (3/3) ... [2022-11-03 01:46:27,113 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product63.cil.c [2022-11-03 01:46:27,135 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:46:27,135 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:46:27,194 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:46:27,202 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;@6cba217c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:46:27,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:46:27,208 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 60 states have internal predecessors, (70), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-03 01:46:27,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 01:46:27,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:27,222 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:46:27,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:27,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:27,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1367258911, now seen corresponding path program 1 times [2022-11-03 01:46:27,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:27,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570912030] [2022-11-03 01:46:27,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:27,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:27,465 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:46:27,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:27,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570912030] [2022-11-03 01:46:27,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570912030] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:27,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:27,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:46:27,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609247693] [2022-11-03 01:46:27,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:27,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:46:27,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:27,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:46:27,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:46:27,514 INFO L87 Difference]: Start difference. First operand has 80 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 60 states have internal predecessors, (70), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:46:27,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:27,607 INFO L93 Difference]: Finished difference Result 158 states and 217 transitions. [2022-11-03 01:46:27,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:46:27,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-03 01:46:27,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:27,623 INFO L225 Difference]: With dead ends: 158 [2022-11-03 01:46:27,623 INFO L226 Difference]: Without dead ends: 75 [2022-11-03 01:46:27,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:46:27,632 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 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 [2022-11-03 01:46:27,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:46:27,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-03 01:46:27,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-03 01:46:27,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 56 states have internal predecessors, (62), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 01:46:27,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2022-11-03 01:46:27,690 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 21 [2022-11-03 01:46:27,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:27,691 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2022-11-03 01:46:27,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:46:27,692 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2022-11-03 01:46:27,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 01:46:27,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:27,695 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:46:27,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:46:27,696 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:27,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:27,697 INFO L85 PathProgramCache]: Analyzing trace with hash 735666244, now seen corresponding path program 1 times [2022-11-03 01:46:27,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:27,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056516627] [2022-11-03 01:46:27,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:27,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:27,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:46:27,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:27,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056516627] [2022-11-03 01:46:27,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056516627] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:27,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:27,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:46:27,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563657782] [2022-11-03 01:46:27,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:27,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:46:27,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:27,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:46:27,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:46:27,961 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:46:28,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:28,027 INFO L93 Difference]: Finished difference Result 122 states and 160 transitions. [2022-11-03 01:46:28,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:46:28,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-11-03 01:46:28,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:28,030 INFO L225 Difference]: With dead ends: 122 [2022-11-03 01:46:28,030 INFO L226 Difference]: Without dead ends: 67 [2022-11-03 01:46:28,031 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 [2022-11-03 01:46:28,033 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 14 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:28,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 129 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:46:28,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-03 01:46:28,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-03 01:46:28,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 51 states have internal predecessors, (56), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 01:46:28,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 88 transitions. [2022-11-03 01:46:28,056 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 88 transitions. Word has length 22 [2022-11-03 01:46:28,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:28,056 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 88 transitions. [2022-11-03 01:46:28,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:46:28,057 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2022-11-03 01:46:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-03 01:46:28,059 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:28,059 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:46:28,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:46:28,059 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:28,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:28,060 INFO L85 PathProgramCache]: Analyzing trace with hash 2139523816, now seen corresponding path program 1 times [2022-11-03 01:46:28,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:28,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913888182] [2022-11-03 01:46:28,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:28,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:28,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:28,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:46:28,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:28,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913888182] [2022-11-03 01:46:28,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913888182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:28,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:28,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:46:28,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897186634] [2022-11-03 01:46:28,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:28,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:46:28,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:28,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:46:28,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:46:28,186 INFO L87 Difference]: Start difference. First operand 67 states and 88 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 01:46:28,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:28,335 INFO L93 Difference]: Finished difference Result 197 states and 261 transitions. [2022-11-03 01:46:28,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:46:28,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-11-03 01:46:28,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:28,340 INFO L225 Difference]: With dead ends: 197 [2022-11-03 01:46:28,340 INFO L226 Difference]: Without dead ends: 132 [2022-11-03 01:46:28,344 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 [2022-11-03 01:46:28,348 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 73 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:28,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 170 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:46:28,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-03 01:46:28,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2022-11-03 01:46:28,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 78 states have (on average 1.3717948717948718) internal successors, (107), 97 states have internal predecessors, (107), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-03 01:46:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 171 transitions. [2022-11-03 01:46:28,397 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 171 transitions. Word has length 25 [2022-11-03 01:46:28,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:28,398 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 171 transitions. [2022-11-03 01:46:28,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-03 01:46:28,398 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 171 transitions. [2022-11-03 01:46:28,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-03 01:46:28,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:28,403 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:46:28,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:46:28,403 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:28,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:28,404 INFO L85 PathProgramCache]: Analyzing trace with hash 671873530, now seen corresponding path program 1 times [2022-11-03 01:46:28,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:28,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927761873] [2022-11-03 01:46:28,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:28,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:28,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:46:28,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:28,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927761873] [2022-11-03 01:46:28,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927761873] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:28,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:28,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:46:28,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452077348] [2022-11-03 01:46:28,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:28,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:46:28,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:28,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:46:28,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:46:28,554 INFO L87 Difference]: Start difference. First operand 129 states and 171 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:46:28,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:28,778 INFO L93 Difference]: Finished difference Result 350 states and 475 transitions. [2022-11-03 01:46:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 01:46:28,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-03 01:46:28,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:28,784 INFO L225 Difference]: With dead ends: 350 [2022-11-03 01:46:28,788 INFO L226 Difference]: Without dead ends: 223 [2022-11-03 01:46:28,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:46:28,791 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 45 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:28,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 344 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:46:28,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2022-11-03 01:46:28,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 214. [2022-11-03 01:46:28,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 137 states have (on average 1.2919708029197081) internal successors, (177), 154 states have internal predecessors, (177), 42 states have call successors, (42), 34 states have call predecessors, (42), 34 states have return successors, (54), 37 states have call predecessors, (54), 42 states have call successors, (54) [2022-11-03 01:46:28,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 273 transitions. [2022-11-03 01:46:28,852 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 273 transitions. Word has length 28 [2022-11-03 01:46:28,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:28,853 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 273 transitions. [2022-11-03 01:46:28,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 01:46:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 273 transitions. [2022-11-03 01:46:28,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-03 01:46:28,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:28,863 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:46:28,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:46:28,863 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:28,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:28,865 INFO L85 PathProgramCache]: Analyzing trace with hash -802916337, now seen corresponding path program 1 times [2022-11-03 01:46:28,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:28,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564164186] [2022-11-03 01:46:28,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:28,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:29,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:46:29,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:29,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564164186] [2022-11-03 01:46:29,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564164186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:29,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:29,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:46:29,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539334589] [2022-11-03 01:46:29,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:29,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:46:29,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:29,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:46:29,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:46:29,361 INFO L87 Difference]: Start difference. First operand 214 states and 273 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 01:46:29,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:29,673 INFO L93 Difference]: Finished difference Result 622 states and 794 transitions. [2022-11-03 01:46:29,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:46:29,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Word has length 42 [2022-11-03 01:46:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:29,682 INFO L225 Difference]: With dead ends: 622 [2022-11-03 01:46:29,682 INFO L226 Difference]: Without dead ends: 410 [2022-11-03 01:46:29,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:46:29,688 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 103 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:29,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 372 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:46:29,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-03 01:46:29,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 400. [2022-11-03 01:46:29,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 259 states have (on average 1.277992277992278) internal successors, (331), 287 states have internal predecessors, (331), 75 states have call successors, (75), 63 states have call predecessors, (75), 65 states have return successors, (99), 68 states have call predecessors, (99), 75 states have call successors, (99) [2022-11-03 01:46:29,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 505 transitions. [2022-11-03 01:46:29,759 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 505 transitions. Word has length 42 [2022-11-03 01:46:29,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:29,759 INFO L495 AbstractCegarLoop]: Abstraction has 400 states and 505 transitions. [2022-11-03 01:46:29,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 01:46:29,760 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 505 transitions. [2022-11-03 01:46:29,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-03 01:46:29,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:29,762 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:46:29,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:46:29,762 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:29,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:29,762 INFO L85 PathProgramCache]: Analyzing trace with hash 258075070, now seen corresponding path program 1 times [2022-11-03 01:46:29,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:29,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132646996] [2022-11-03 01:46:29,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:29,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:30,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:46:30,104 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:30,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132646996] [2022-11-03 01:46:30,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132646996] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:30,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:30,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 01:46:30,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953953506] [2022-11-03 01:46:30,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:30,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:46:30,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:30,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:46:30,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:46:30,107 INFO L87 Difference]: Start difference. First operand 400 states and 505 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-03 01:46:30,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:30,733 INFO L93 Difference]: Finished difference Result 944 states and 1217 transitions. [2022-11-03 01:46:30,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 01:46:30,734 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 45 [2022-11-03 01:46:30,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:30,740 INFO L225 Difference]: With dead ends: 944 [2022-11-03 01:46:30,740 INFO L226 Difference]: Without dead ends: 658 [2022-11-03 01:46:30,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-03 01:46:30,746 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 326 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:30,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 279 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 01:46:30,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2022-11-03 01:46:30,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 594. [2022-11-03 01:46:30,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 390 states have (on average 1.2692307692307692) internal successors, (495), 430 states have internal predecessors, (495), 108 states have call successors, (108), 82 states have call predecessors, (108), 95 states have return successors, (147), 107 states have call predecessors, (147), 108 states have call successors, (147) [2022-11-03 01:46:30,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 750 transitions. [2022-11-03 01:46:30,848 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 750 transitions. Word has length 45 [2022-11-03 01:46:30,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:30,850 INFO L495 AbstractCegarLoop]: Abstraction has 594 states and 750 transitions. [2022-11-03 01:46:30,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 5 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-03 01:46:30,851 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 750 transitions. [2022-11-03 01:46:30,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-11-03 01:46:30,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:30,853 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:46:30,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:46:30,855 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:30,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:30,856 INFO L85 PathProgramCache]: Analyzing trace with hash 964910539, now seen corresponding path program 1 times [2022-11-03 01:46:30,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:30,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378935773] [2022-11-03 01:46:30,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:30,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:30,928 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 01:46:30,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:30,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378935773] [2022-11-03 01:46:30,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378935773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:30,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:30,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:46:30,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962945836] [2022-11-03 01:46:30,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:30,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:46:30,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:30,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:46:30,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:46:30,931 INFO L87 Difference]: Start difference. First operand 594 states and 750 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-03 01:46:31,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:31,088 INFO L93 Difference]: Finished difference Result 700 states and 884 transitions. [2022-11-03 01:46:31,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:46:31,089 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 66 [2022-11-03 01:46:31,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:31,091 INFO L225 Difference]: With dead ends: 700 [2022-11-03 01:46:31,091 INFO L226 Difference]: Without dead ends: 287 [2022-11-03 01:46:31,093 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 [2022-11-03 01:46:31,097 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 113 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:31,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 154 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:46:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2022-11-03 01:46:31,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2022-11-03 01:46:31,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 189 states have (on average 1.2222222222222223) internal successors, (231), 207 states have internal predecessors, (231), 51 states have call successors, (51), 39 states have call predecessors, (51), 46 states have return successors, (70), 52 states have call predecessors, (70), 51 states have call successors, (70) [2022-11-03 01:46:31,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 352 transitions. [2022-11-03 01:46:31,147 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 352 transitions. Word has length 66 [2022-11-03 01:46:31,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:31,147 INFO L495 AbstractCegarLoop]: Abstraction has 287 states and 352 transitions. [2022-11-03 01:46:31,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-03 01:46:31,148 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 352 transitions. [2022-11-03 01:46:31,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-03 01:46:31,152 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:31,152 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, 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] [2022-11-03 01:46:31,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:46:31,153 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:31,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:31,153 INFO L85 PathProgramCache]: Analyzing trace with hash -170410244, now seen corresponding path program 1 times [2022-11-03 01:46:31,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:31,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539321005] [2022-11-03 01:46:31,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:31,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:31,925 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:46:31,925 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:31,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539321005] [2022-11-03 01:46:31,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539321005] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:46:31,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088558238] [2022-11-03 01:46:31,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:31,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:46:31,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:46:31,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:46:31,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:46:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:32,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-03 01:46:32,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:46:32,527 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:46:32,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:46:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-11-03 01:46:32,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088558238] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:46:32,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1772803533] [2022-11-03 01:46:32,807 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-03 01:46:32,807 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:46:32,811 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:46:32,817 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:46:32,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:46:40,443 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 52 for LOIs [2022-11-03 01:46:40,454 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 51 for LOIs [2022-11-03 01:46:41,081 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 24 for LOIs [2022-11-03 01:46:41,083 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 29 for LOIs [2022-11-03 01:46:41,138 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-03 01:46:41,263 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 28 for LOIs [2022-11-03 01:46:41,266 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:46:49,362 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7943#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (<= |#NULL.offset| 0) (= |old(~pumpRunning~0)| 0) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (= |old(~waterLevel~0)| ~waterLevel~0) (<= ~head~0.base 0) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (<= 0 |#NULL.offset|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (= ~switchedOnBeforeTS~0 0) (<= |timeShift_getWaterLevel_~retValue_acc~8#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|) (= ~pumpRunning~0 1) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2022-11-03 01:46:49,362 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:46:49,363 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:46:49,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 14 [2022-11-03 01:46:49,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251054961] [2022-11-03 01:46:49,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:46:49,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 01:46:49,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:49,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 01:46:49,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1833, Unknown=0, NotChecked=0, Total=2070 [2022-11-03 01:46:49,366 INFO L87 Difference]: Start difference. First operand 287 states and 352 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 01:46:51,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:51,200 INFO L93 Difference]: Finished difference Result 812 states and 1029 transitions. [2022-11-03 01:46:51,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-11-03 01:46:51,201 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) Word has length 80 [2022-11-03 01:46:51,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:51,209 INFO L225 Difference]: With dead ends: 812 [2022-11-03 01:46:51,209 INFO L226 Difference]: Without dead ends: 527 [2022-11-03 01:46:51,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 205 SyntacticMatches, 15 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2026 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=590, Invalid=4240, Unknown=0, NotChecked=0, Total=4830 [2022-11-03 01:46:51,213 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 566 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 416 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 416 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:51,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 401 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [416 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-03 01:46:51,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2022-11-03 01:46:51,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 471. [2022-11-03 01:46:51,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 311 states have (on average 1.1961414790996785) internal successors, (372), 343 states have internal predecessors, (372), 78 states have call successors, (78), 62 states have call predecessors, (78), 81 states have return successors, (131), 84 states have call predecessors, (131), 78 states have call successors, (131) [2022-11-03 01:46:51,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 581 transitions. [2022-11-03 01:46:51,271 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 581 transitions. Word has length 80 [2022-11-03 01:46:51,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:51,273 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 581 transitions. [2022-11-03 01:46:51,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 7 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (18), 6 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 01:46:51,274 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 581 transitions. [2022-11-03 01:46:51,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-03 01:46:51,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:51,275 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:46:51,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:46:51,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-03 01:46:51,517 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:51,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:51,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1726813961, now seen corresponding path program 1 times [2022-11-03 01:46:51,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:51,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035183076] [2022-11-03 01:46:51,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:51,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:51,628 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:46:51,628 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:51,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035183076] [2022-11-03 01:46:51,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035183076] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:46:51,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518069737] [2022-11-03 01:46:51,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:51,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:46:51,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:46:51,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:46:51,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:46:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:51,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 01:46:51,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:46:51,804 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 01:46:51,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:46:51,973 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 01:46:51,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518069737] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:46:51,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1082272196] [2022-11-03 01:46:51,982 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2022-11-03 01:46:51,982 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:46:51,983 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:46:51,983 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:46:51,983 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:47:00,188 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 53 for LOIs [2022-11-03 01:47:00,197 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 48 for LOIs [2022-11-03 01:47:00,708 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 20 for LOIs [2022-11-03 01:47:00,710 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 63 for LOIs [2022-11-03 01:47:01,391 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 52 for LOIs [2022-11-03 01:47:01,733 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 58 for LOIs [2022-11-03 01:47:01,745 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 32 for LOIs [2022-11-03 01:47:01,747 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:47:14,176 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10460#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483647) (<= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (= ~switchedOnBeforeTS~0 0) (<= |timeShift_getWaterLevel_~retValue_acc~8#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483648)))' at error location [2022-11-03 01:47:14,176 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:47:14,176 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:47:14,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2022-11-03 01:47:14,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337044098] [2022-11-03 01:47:14,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:47:14,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 01:47:14,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:14,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 01:47:14,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=2186, Unknown=0, NotChecked=0, Total=2450 [2022-11-03 01:47:14,179 INFO L87 Difference]: Start difference. First operand 471 states and 581 transitions. Second operand has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:47:14,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:14,892 INFO L93 Difference]: Finished difference Result 941 states and 1189 transitions. [2022-11-03 01:47:14,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 01:47:14,893 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) Word has length 84 [2022-11-03 01:47:14,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:14,897 INFO L225 Difference]: With dead ends: 941 [2022-11-03 01:47:14,901 INFO L226 Difference]: Without dead ends: 588 [2022-11-03 01:47:14,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 207 SyntacticMatches, 5 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1385 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=350, Invalid=3310, Unknown=0, NotChecked=0, Total=3660 [2022-11-03 01:47:14,907 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 207 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:14,907 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 557 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-03 01:47:14,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-11-03 01:47:14,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 548. [2022-11-03 01:47:14,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 361 states have (on average 1.1772853185595569) internal successors, (425), 400 states have internal predecessors, (425), 93 states have call successors, (93), 77 states have call predecessors, (93), 93 states have return successors, (147), 95 states have call predecessors, (147), 93 states have call successors, (147) [2022-11-03 01:47:14,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 665 transitions. [2022-11-03 01:47:14,972 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 665 transitions. Word has length 84 [2022-11-03 01:47:14,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:14,973 INFO L495 AbstractCegarLoop]: Abstraction has 548 states and 665 transitions. [2022-11-03 01:47:14,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (18), 4 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-03 01:47:14,973 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 665 transitions. [2022-11-03 01:47:14,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-03 01:47:14,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:14,976 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:15,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:47:15,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:47:15,191 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:47:15,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:15,191 INFO L85 PathProgramCache]: Analyzing trace with hash 2024548739, now seen corresponding path program 1 times [2022-11-03 01:47:15,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:15,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126044402] [2022-11-03 01:47:15,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:15,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:16,196 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 16 proven. 45 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-03 01:47:16,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:16,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126044402] [2022-11-03 01:47:16,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126044402] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:47:16,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933795499] [2022-11-03 01:47:16,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:16,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:47:16,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:47:16,199 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:47:16,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:47:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:16,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-03 01:47:16,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:47:16,770 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 68 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 01:47:16,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:47:17,526 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 56 proven. 5 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-03 01:47:17,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933795499] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:47:17,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2015186322] [2022-11-03 01:47:17,531 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2022-11-03 01:47:17,532 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:47:17,533 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:47:17,534 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:47:17,534 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:47:23,150 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 55 for LOIs [2022-11-03 01:47:23,161 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 49 for LOIs [2022-11-03 01:47:23,925 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 41 for LOIs [2022-11-03 01:47:23,931 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 26 for LOIs [2022-11-03 01:47:23,975 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 26 for LOIs [2022-11-03 01:47:24,082 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 27 for LOIs [2022-11-03 01:47:24,085 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:47:31,905 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13447#(and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| ~waterLevel~0) (<= 0 |old(~pumpRunning~0)|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (= ~head~0.offset 0) (<= 1 ~systemActive~0) (<= |#NULL.offset| 0) (<= |old(~pumpRunning~0)| 0) (<= 2 |old(~waterLevel~0)|) (<= ~methaneLevelCritical~0 0) (<= 0 ~head~0.base) (<= 0 ~methaneLevelCritical~0) (<= ~head~0.base 0) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (<= 0 |#NULL.offset|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2)) (= ~switchedOnBeforeTS~0 0) (<= |timeShift_getWaterLevel_~retValue_acc~8#1| 2147483647) (<= 0 |#StackHeapBarrier|) (= |timeShift_getWaterLevel_~retValue_acc~8#1| |timeShift_getWaterLevel_#res#1|) (= ~pumpRunning~0 1) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 01:47:31,905 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:47:31,905 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:47:31,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 11, 11] total 30 [2022-11-03 01:47:31,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907408380] [2022-11-03 01:47:31,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:47:31,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-11-03 01:47:31,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:31,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-11-03 01:47:31,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=3725, Unknown=0, NotChecked=0, Total=4160 [2022-11-03 01:47:31,909 INFO L87 Difference]: Start difference. First operand 548 states and 665 transitions. Second operand has 30 states, 28 states have (on average 5.535714285714286) internal successors, (155), 29 states have internal predecessors, (155), 18 states have call successors, (36), 8 states have call predecessors, (36), 12 states have return successors, (36), 17 states have call predecessors, (36), 17 states have call successors, (36) [2022-11-03 01:47:36,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:36,232 INFO L93 Difference]: Finished difference Result 1196 states and 1495 transitions. [2022-11-03 01:47:36,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-11-03 01:47:36,233 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 28 states have (on average 5.535714285714286) internal successors, (155), 29 states have internal predecessors, (155), 18 states have call successors, (36), 8 states have call predecessors, (36), 12 states have return successors, (36), 17 states have call predecessors, (36), 17 states have call successors, (36) Word has length 113 [2022-11-03 01:47:36,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:36,235 INFO L225 Difference]: With dead ends: 1196 [2022-11-03 01:47:36,235 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 01:47:36,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 314 SyntacticMatches, 9 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6036 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=1756, Invalid=13006, Unknown=0, NotChecked=0, Total=14762 [2022-11-03 01:47:36,248 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 1586 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 1823 mSolverCounterSat, 1062 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1593 SdHoareTripleChecker+Valid, 835 SdHoareTripleChecker+Invalid, 2885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1062 IncrementalHoareTripleChecker+Valid, 1823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:36,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1593 Valid, 835 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1062 Valid, 1823 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-03 01:47:36,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 01:47:36,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 01:47:36,251 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) [2022-11-03 01:47:36,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 01:47:36,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2022-11-03 01:47:36,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:36,252 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 01:47:36,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 28 states have (on average 5.535714285714286) internal successors, (155), 29 states have internal predecessors, (155), 18 states have call successors, (36), 8 states have call predecessors, (36), 12 states have return successors, (36), 17 states have call predecessors, (36), 17 states have call successors, (36) [2022-11-03 01:47:36,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 01:47:36,253 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 01:47:36,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:47:36,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:47:36,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 01:47:36,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 01:47:44,574 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 466 473) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (= ~switchedOnBeforeTS~0 0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:47:44,574 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 466 473) no Hoare annotation was computed. [2022-11-03 01:47:44,575 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 356 362) no Hoare annotation was computed. [2022-11-03 01:47:44,575 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 356 362) the Hoare annotation is: true [2022-11-03 01:47:44,575 INFO L895 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~switchedOnBeforeTS~0 0) .cse2) (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2))) [2022-11-03 01:47:44,575 INFO L899 garLoopResultBuilder]: For program point L409-1(lines 390 414) no Hoare annotation was computed. [2022-11-03 01:47:44,576 INFO L895 garLoopResultBuilder]: At program point L404(line 404) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2))) [2022-11-03 01:47:44,576 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 390 414) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:47:44,576 INFO L895 garLoopResultBuilder]: At program point L400(line 400) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2))) [2022-11-03 01:47:44,576 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 406) no Hoare annotation was computed. [2022-11-03 01:47:44,576 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 390 414) no Hoare annotation was computed. [2022-11-03 01:47:44,577 INFO L895 garLoopResultBuilder]: At program point L394(lines 394 411) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:47:44,577 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 485 493) no Hoare annotation was computed. [2022-11-03 01:47:44,577 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 485 493) the Hoare annotation is: true [2022-11-03 01:47:44,577 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 610 621) the Hoare annotation is: true [2022-11-03 01:47:44,577 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 610 621) no Hoare annotation was computed. [2022-11-03 01:47:44,577 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 222 251) no Hoare annotation was computed. [2022-11-03 01:47:44,578 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 222 251) the Hoare annotation is: true [2022-11-03 01:47:44,578 INFO L902 garLoopResultBuilder]: At program point L247(lines 222 251) the Hoare annotation is: true [2022-11-03 01:47:44,578 INFO L899 garLoopResultBuilder]: For program point L243(line 243) no Hoare annotation was computed. [2022-11-03 01:47:44,578 INFO L899 garLoopResultBuilder]: For program point L236(lines 236 240) no Hoare annotation was computed. [2022-11-03 01:47:44,578 INFO L902 garLoopResultBuilder]: At program point L236-1(lines 236 240) the Hoare annotation is: true [2022-11-03 01:47:44,578 INFO L902 garLoopResultBuilder]: At program point L232-2(lines 232 246) the Hoare annotation is: true [2022-11-03 01:47:44,579 INFO L902 garLoopResultBuilder]: At program point L228(line 228) the Hoare annotation is: true [2022-11-03 01:47:44,579 INFO L899 garLoopResultBuilder]: For program point L228-1(line 228) no Hoare annotation was computed. [2022-11-03 01:47:44,579 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2022-11-03 01:47:44,579 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 432) no Hoare annotation was computed. [2022-11-03 01:47:44,579 INFO L899 garLoopResultBuilder]: For program point L420(lines 420 437) no Hoare annotation was computed. [2022-11-03 01:47:44,580 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse9 (+ ~waterLevel~0 1)) (.cse7 (= ~pumpRunning~0 0))) (let ((.cse11 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse8 (<= |old(~waterLevel~0)| 0)) (.cse12 (not (= |old(~pumpRunning~0)| 0))) (.cse13 (not (= 0 ~systemActive~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not .cse7)) (.cse10 (= |old(~waterLevel~0)| .cse9)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse14 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (= ~switchedOnBeforeTS~0 0))) (.cse3 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0)) (.cse15 (= ~waterLevel~0 1)) (.cse16 (not (<= 2 |old(~waterLevel~0)|)))) (and (let ((.cse4 (or (and .cse10 (< 0 |old(~waterLevel~0)|)) .cse11))) (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3 (<= ~waterLevel~0 0) .cse4 .cse5) (and .cse6 .cse7 .cse3 .cse4 (or .cse8 (<= .cse9 |old(~waterLevel~0)|))) (= |old(~switchedOnBeforeTS~0)| 0))) (or .cse12 .cse7 .cse13) (or .cse12 .cse1 .cse14 (and .cse7 .cse3 .cse11 .cse5)) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse7 .cse1 (not .cse8)) (or .cse12 (not (= |old(~waterLevel~0)| 1)) .cse15 .cse13) (or .cse12 .cse14 .cse13 .cse16) (or .cse1 (and .cse2 .cse3 .cse10 .cse5) .cse14 (and .cse6 .cse7 .cse3 .cse15) .cse16)))) [2022-11-03 01:47:44,580 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2022-11-03 01:47:44,580 INFO L895 garLoopResultBuilder]: At program point L144(line 144) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse0 .cse1) (or .cse2 (not (= 0 ~systemActive~0))))) [2022-11-03 01:47:44,581 INFO L895 garLoopResultBuilder]: At program point L343-1(lines 343 349) the Hoare annotation is: (let ((.cse12 (+ ~waterLevel~0 1)) (.cse2 (= ~pumpRunning~0 0))) (let ((.cse8 (not .cse2)) (.cse14 (= |old(~waterLevel~0)| .cse12)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse10 (not (= ~switchedOnBeforeTS~0 0))) (.cse15 (= ~waterLevel~0 1)) (.cse19 (= 1 ~systemActive~0))) (let ((.cse11 (<= |old(~waterLevel~0)| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= 0 ~systemActive~0))) (.cse7 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse13 (= |old(~switchedOnBeforeTS~0)| 0)) (.cse1 (not .cse19)) (.cse17 (and .cse10 .cse2 .cse19 .cse15)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse18 (and .cse8 .cse14 .cse19 .cse4)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse16 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse3) .cse5) (or .cse0 .cse2 .cse6) (let ((.cse9 (or (and .cse14 (< 0 |old(~waterLevel~0)|)) .cse3))) (or .cse7 (not (<= |old(~waterLevel~0)| 1)) .cse1 (and .cse8 (<= ~waterLevel~0 0) .cse9 .cse4) (and .cse10 .cse2 .cse9 (or .cse11 (<= .cse12 |old(~waterLevel~0)|))) .cse13)) (or .cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse1 (not .cse11)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse15 .cse6) (or .cse0 .cse3 .cse5 .cse6 .cse16) (or .cse7 .cse1 .cse17 .cse18 .cse5 .cse16 .cse13) (or .cse1 .cse17 .cse3 .cse18 .cse5 .cse16))))) [2022-11-03 01:47:44,581 INFO L895 garLoopResultBuilder]: At program point L430(line 430) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse5 (and .cse1 (let ((.cse6 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse6) (= |old(~waterLevel~0)| ~waterLevel~0)) (and .cse2 .cse6))) .cse3) .cse0 .cse4) (or .cse7 .cse0 .cse4) (or .cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= |old(~waterLevel~0)| 0))) (or .cse7 (not (= 0 ~systemActive~0))))) [2022-11-03 01:47:44,581 INFO L895 garLoopResultBuilder]: At program point L426(line 426) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse5 (and .cse1 (let ((.cse6 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse6) (= |old(~waterLevel~0)| ~waterLevel~0)) (and .cse2 .cse6))) .cse3) .cse0 .cse4) (or .cse7 .cse0 .cse4) (or .cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= |old(~waterLevel~0)| 0))) (or .cse7 (not (= 0 ~systemActive~0))))) [2022-11-03 01:47:44,582 INFO L895 garLoopResultBuilder]: At program point L422(line 422) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse5 (and .cse1 (let ((.cse6 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse6) (= |old(~waterLevel~0)| ~waterLevel~0)) (and .cse2 .cse6))) .cse3) .cse0 .cse4) (or .cse7 .cse0 .cse4) (or .cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (<= |old(~waterLevel~0)| 0))) (or .cse7 (not (= 0 ~systemActive~0))))) [2022-11-03 01:47:44,582 INFO L899 garLoopResultBuilder]: For program point L422-1(line 422) no Hoare annotation was computed. [2022-11-03 01:47:44,582 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse5 (not (= 0 ~systemActive~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4)) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse8 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse6) (or .cse3 .cse5 (and .cse7 (or .cse4 (= ~waterLevel~0 1)))) (or .cse1 .cse2 .cse8 .cse6) (or .cse3 .cse1 .cse8 (and (not (= ~switchedOnBeforeTS~0 0)) .cse7 .cse4) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 .cse1 .cse8 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))))) [2022-11-03 01:47:44,583 INFO L895 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= |timeShift___utac_acc__Specification5_spec__2_#t~ret4#1| ~pumpRunning~0))) (let ((.cse6 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse3)) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse9 (not (= 0 ~systemActive~0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|))) (.cse8 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (not (= 1 ~systemActive~0))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5) (or .cse6 .cse4 .cse5 .cse7) (or .cse8 (not (<= |old(~waterLevel~0)| 1)) .cse6 .cse4) (or .cse0 .cse9 (and .cse1 (or .cse2 (= ~waterLevel~0 1)))) (or .cse8 .cse4 .cse5 .cse10 .cse7) (or .cse0 .cse2 .cse5 .cse9 .cse7) (or .cse8 .cse4 .cse5 .cse10 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-03 01:47:44,583 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2022-11-03 01:47:44,583 INFO L895 garLoopResultBuilder]: At program point L435(line 435) the Hoare annotation is: (let ((.cse2 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse1 .cse3 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 (not (= 0 ~systemActive~0))))) [2022-11-03 01:47:44,583 INFO L895 garLoopResultBuilder]: At program point L435-1(lines 416 440) the Hoare annotation is: (let ((.cse11 (+ ~waterLevel~0 1)) (.cse2 (= ~pumpRunning~0 0))) (let ((.cse7 (not .cse2)) (.cse13 (= |old(~waterLevel~0)| .cse11)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse9 (not (= ~switchedOnBeforeTS~0 0))) (.cse17 (= 1 ~systemActive~0))) (let ((.cse10 (<= |old(~waterLevel~0)| 0)) (.cse6 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse12 (= |old(~switchedOnBeforeTS~0)| 0)) (.cse1 (not .cse17)) (.cse14 (and .cse9 .cse2 .cse17 (= ~waterLevel~0 1))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse15 (and .cse7 .cse13 .cse17 .cse4)) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse16 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse3) .cse5) (let ((.cse8 (or (and .cse13 (< 0 |old(~waterLevel~0)|)) .cse3))) (or .cse6 (not (<= |old(~waterLevel~0)| 1)) .cse1 (and .cse7 (<= ~waterLevel~0 0) .cse8 .cse4) (and .cse9 .cse2 .cse8 (or .cse10 (<= .cse11 |old(~waterLevel~0)|))) .cse12)) (or .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse1 (not .cse10)) (or .cse6 .cse1 .cse14 .cse15 .cse5 .cse16 .cse12) (or .cse1 .cse14 .cse3 .cse15 .cse5 .cse16) (or .cse0 (not (= 0 ~systemActive~0))))))) [2022-11-03 01:47:44,584 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2022-11-03 01:47:44,584 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 329 355) the Hoare annotation is: (let ((.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse5 (not (= 0 ~systemActive~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4)) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse1 (not (= 1 ~systemActive~0))) (.cse8 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse6) (or .cse3 .cse5 (and .cse7 (or .cse4 (= ~waterLevel~0 1)))) (or .cse1 .cse2 .cse8 .cse6) (or .cse3 .cse1 .cse8 (and (not (= ~switchedOnBeforeTS~0 0)) .cse7 .cse4) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 .cse1 .cse8 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))))) [2022-11-03 01:47:44,585 INFO L895 garLoopResultBuilder]: At program point L80-1(lines 72 100) the Hoare annotation is: (let ((.cse20 (+ ~waterLevel~0 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse13 (= 1 ~systemActive~0)) (.cse14 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse15 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2))) (let ((.cse3 (= ~waterLevel~0 1)) (.cse5 (and .cse13 .cse14 .cse15)) (.cse2 (not (= 0 ~systemActive~0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|))) (.cse8 (not .cse1)) (.cse12 (not (= ~switchedOnBeforeTS~0 0))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (= |old(~waterLevel~0)| .cse20)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse9 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0)) (.cse11 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse16 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (not .cse13)) (.cse19 (<= |old(~waterLevel~0)| 0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse3 .cse2) (or .cse0 .cse4 .cse5 .cse6 .cse7) (or .cse4 (and .cse8 .cse9 .cse10 .cse11) (and .cse12 .cse1 .cse9 .cse13 .cse3) .cse5 .cse6 .cse7) (or .cse0 .cse6 .cse2 (and .cse14 .cse15) .cse7) (let ((.cse17 (< 0 |old(~waterLevel~0)|))) (let ((.cse18 (and .cse10 .cse17))) (or .cse16 (and .cse8 .cse9 (or (and (not .cse17) .cse14) .cse18) .cse11) .cse4 (and .cse12 .cse1 .cse9 .cse13 (or .cse18 .cse14) (or .cse19 (<= .cse20 |old(~waterLevel~0)|))) .cse6 (= |old(~switchedOnBeforeTS~0)| 0)))) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 .cse9 .cse13 .cse14 .cse11) .cse4) (or .cse16 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 (and .cse1 .cse13) (not .cse19))))) [2022-11-03 01:47:44,585 INFO L899 garLoopResultBuilder]: For program point L336-2(lines 332 354) no Hoare annotation was computed. [2022-11-03 01:47:44,585 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 329 355) no Hoare annotation was computed. [2022-11-03 01:47:44,585 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 144) no Hoare annotation was computed. [2022-11-03 01:47:44,585 INFO L899 garLoopResultBuilder]: For program point L572(lines 572 578) no Hoare annotation was computed. [2022-11-03 01:47:44,585 INFO L895 garLoopResultBuilder]: At program point L572-1(lines 572 578) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-03 01:47:44,586 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 190) no Hoare annotation was computed. [2022-11-03 01:47:44,586 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 184 190) no Hoare annotation was computed. [2022-11-03 01:47:44,586 INFO L895 garLoopResultBuilder]: At program point L209(lines 164 211) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= ~waterLevel~0 2)) (and .cse2 .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse2 .cse0 .cse1))) [2022-11-03 01:47:44,586 INFO L895 garLoopResultBuilder]: At program point L176(line 176) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 1)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= ~waterLevel~0 2)) (and .cse2 .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse2 .cse0 .cse1))) [2022-11-03 01:47:44,586 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 01:47:44,587 INFO L895 garLoopResultBuilder]: At program point L305(lines 305 312) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-03 01:47:44,587 INFO L902 garLoopResultBuilder]: At program point L305-2(lines 305 312) the Hoare annotation is: true [2022-11-03 01:47:44,587 INFO L899 garLoopResultBuilder]: For program point L165(lines 164 211) no Hoare annotation was computed. [2022-11-03 01:47:44,587 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 207) no Hoare annotation was computed. [2022-11-03 01:47:44,587 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 01:47:44,587 INFO L895 garLoopResultBuilder]: At program point L574(line 574) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2022-11-03 01:47:44,588 INFO L895 garLoopResultBuilder]: At program point L186(line 186) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= ~waterLevel~0 1) .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse0 .cse1 .cse2))) [2022-11-03 01:47:44,588 INFO L902 garLoopResultBuilder]: At program point L215(lines 154 219) the Hoare annotation is: true [2022-11-03 01:47:44,588 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 180) no Hoare annotation was computed. [2022-11-03 01:47:44,588 INFO L899 garLoopResultBuilder]: For program point L174-1(lines 174 180) no Hoare annotation was computed. [2022-11-03 01:47:44,588 INFO L895 garLoopResultBuilder]: At program point L212(lines 163 213) the Hoare annotation is: false [2022-11-03 01:47:44,589 INFO L899 garLoopResultBuilder]: For program point L200(lines 200 206) no Hoare annotation was computed. [2022-11-03 01:47:44,589 INFO L895 garLoopResultBuilder]: At program point L200-2(lines 194 207) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= ~waterLevel~0 1) .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse0 .cse1 .cse2))) [2022-11-03 01:47:44,589 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 364 388) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:47:44,589 INFO L895 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~switchedOnBeforeTS~0 0) .cse2) (or .cse0 (not (<= ~waterLevel~0 1)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0) .cse2) (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2))) [2022-11-03 01:47:44,589 INFO L899 garLoopResultBuilder]: For program point L372(lines 372 380) no Hoare annotation was computed. [2022-11-03 01:47:44,590 INFO L895 garLoopResultBuilder]: At program point L368(lines 368 385) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:47:44,590 INFO L895 garLoopResultBuilder]: At program point L383(line 383) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1 .cse2))) [2022-11-03 01:47:44,590 INFO L899 garLoopResultBuilder]: For program point L383-1(lines 364 388) no Hoare annotation was computed. [2022-11-03 01:47:44,590 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 364 388) no Hoare annotation was computed. [2022-11-03 01:47:44,590 INFO L895 garLoopResultBuilder]: At program point L454(line 454) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 2)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:47:44,590 INFO L895 garLoopResultBuilder]: At program point L454-1(line 454) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 2)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) [2022-11-03 01:47:44,591 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 598 609) no Hoare annotation was computed. [2022-11-03 01:47:44,591 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 598 609) the Hoare annotation is: (let ((.cse2 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~pumpRunning~0 0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (<= |old(~waterLevel~0)| 2)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse2 .cse0 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse1) (or .cse2 .cse3 .cse0 .cse1) (or .cse3 .cse1 (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))))) [2022-11-03 01:47:44,591 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 474 484) the Hoare annotation is: true [2022-11-03 01:47:44,591 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 474 484) no Hoare annotation was computed. [2022-11-03 01:47:44,595 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:47:44,597 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:47:44,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:47:44 BoogieIcfgContainer [2022-11-03 01:47:44,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:47:44,631 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:47:44,631 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:47:44,631 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:47:44,632 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:46:27" (3/4) ... [2022-11-03 01:47:44,635 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 01:47:44,641 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 01:47:44,642 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 01:47:44,642 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 01:47:44,642 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 01:47:44,642 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 01:47:44,643 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 01:47:44,643 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 01:47:44,643 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-03 01:47:44,643 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-03 01:47:44,643 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-03 01:47:44,652 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2022-11-03 01:47:44,652 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2022-11-03 01:47:44,653 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 01:47:44,654 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 01:47:44,654 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 01:47:44,655 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:47:44,655 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:47:44,684 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) && (((((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || ((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || !(1 == systemActive))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || pumpRunning == switchedOnBeforeTS) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || pumpRunning == switchedOnBeforeTS) || \old(switchedOnBeforeTS) == 0) [2022-11-03 01:47:44,685 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (((!(pumpRunning == 0) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && (\old(waterLevel) <= 0 || waterLevel + 1 <= \old(waterLevel)))) || \old(switchedOnBeforeTS) == 0)) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && 1 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || \old(switchedOnBeforeTS) == 0)) && (((((!(1 == systemActive) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || (((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && 1 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-03 01:47:44,686 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((1 == systemActive && \old(waterLevel) == waterLevel) && tmp == 2)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(1 == systemActive) || (((!(pumpRunning == 0) && tmp == waterLevel) && \old(waterLevel) == waterLevel + 1) && pumpRunning == switchedOnBeforeTS)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && waterLevel == 1)) || ((1 == systemActive && \old(waterLevel) == waterLevel) && tmp == 2)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || (\old(waterLevel) == waterLevel && tmp == 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((!(pumpRunning == 0) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || (((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && (\old(waterLevel) <= 0 || waterLevel + 1 <= \old(waterLevel)))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && tmp == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || !(1 == systemActive)) || (pumpRunning == 0 && 1 == systemActive)) || !(\old(waterLevel) <= 0)) [2022-11-03 01:47:44,686 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-03 01:47:44,687 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (((!(pumpRunning == 0) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && (\old(waterLevel) <= 0 || waterLevel + 1 <= \old(waterLevel)))) || \old(switchedOnBeforeTS) == 0)) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 0))) && ((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && 1 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || \old(switchedOnBeforeTS) == 0)) && (((((!(1 == systemActive) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || (((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && 1 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-03 01:47:44,687 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) [2022-11-03 01:47:44,688 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) [2022-11-03 01:47:44,688 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || ((pumpRunning == 0 && 2 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel <= 2)) || !(switchedOnBeforeTS == \old(pumpRunning)) [2022-11-03 01:47:44,719 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 01:47:44,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:47:44,720 INFO L158 Benchmark]: Toolchain (without parser) took 79279.48ms. Allocated memory was 94.4MB in the beginning and 654.3MB in the end (delta: 559.9MB). Free memory was 58.7MB in the beginning and 310.6MB in the end (delta: -251.9MB). Peak memory consumption was 308.7MB. Max. memory is 16.1GB. [2022-11-03 01:47:44,721 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 94.4MB. Free memory was 46.4MB in the beginning and 46.3MB in the end (delta: 47.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:47:44,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 567.04ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 58.5MB in the beginning and 89.0MB in the end (delta: -30.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 01:47:44,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.04ms. Allocated memory is still 123.7MB. Free memory was 89.0MB in the beginning and 86.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:47:44,722 INFO L158 Benchmark]: Boogie Preprocessor took 64.62ms. Allocated memory is still 123.7MB. Free memory was 86.3MB in the beginning and 84.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:47:44,722 INFO L158 Benchmark]: RCFGBuilder took 931.01ms. Allocated memory is still 123.7MB. Free memory was 84.3MB in the beginning and 88.9MB in the end (delta: -4.6MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2022-11-03 01:47:44,722 INFO L158 Benchmark]: TraceAbstraction took 77525.48ms. Allocated memory was 123.7MB in the beginning and 654.3MB in the end (delta: 530.6MB). Free memory was 88.3MB in the beginning and 316.9MB in the end (delta: -228.6MB). Peak memory consumption was 390.4MB. Max. memory is 16.1GB. [2022-11-03 01:47:44,723 INFO L158 Benchmark]: Witness Printer took 89.13ms. Allocated memory is still 654.3MB. Free memory was 316.9MB in the beginning and 310.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 01:47:44,725 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 94.4MB. Free memory was 46.4MB in the beginning and 46.3MB in the end (delta: 47.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 567.04ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 58.5MB in the beginning and 89.0MB in the end (delta: -30.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.04ms. Allocated memory is still 123.7MB. Free memory was 89.0MB in the beginning and 86.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.62ms. Allocated memory is still 123.7MB. Free memory was 86.3MB in the beginning and 84.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 931.01ms. Allocated memory is still 123.7MB. Free memory was 84.3MB in the beginning and 88.9MB in the end (delta: -4.6MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * TraceAbstraction took 77525.48ms. Allocated memory was 123.7MB in the beginning and 654.3MB in the end (delta: 530.6MB). Free memory was 88.3MB in the beginning and 316.9MB in the end (delta: -228.6MB). Peak memory consumption was 390.4MB. Max. memory is 16.1GB. * Witness Printer took 89.13ms. Allocated memory is still 654.3MB. Free memory was 316.9MB in the beginning and 310.6MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 144]: 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 11 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 77.4s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3065 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3033 mSDsluCounter, 3328 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2678 mSDsCounter, 1785 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3942 IncrementalHoareTripleChecker+Invalid, 5727 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1785 mSolverCounterUnsat, 1024 mSDtfsCounter, 3942 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1050 GetRequests, 745 SyntacticMatches, 29 SemanticMatches, 276 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9482 ImplicationChecksByTransitivity, 32.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=594occurred in iteration=6, InterpolantAutomatonStates: 158, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 182 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 1901 PreInvPairs, 2184 NumberOfFragments, 2419 HoareAnnotationTreeSize, 1901 FomulaSimplifications, 6805 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 45 FomulaSimplificationsInter, 28053 FormulaSimplificationTreeSizeReductionInter, 7.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 803 NumberOfCodeBlocks, 803 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1064 ConstructedInterpolants, 0 QuantifiedInterpolants, 3407 SizeOfPredicates, 26 NumberOfNonLiveVariables, 1599 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 427/515 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 416]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (((!(pumpRunning == 0) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && (\old(waterLevel) <= 0 || waterLevel + 1 <= \old(waterLevel)))) || \old(switchedOnBeforeTS) == 0)) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 0))) && ((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && 1 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || \old(switchedOnBeforeTS) == 0)) && (((((!(1 == systemActive) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || (((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && 1 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 394]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) && ((!(1 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || ((pumpRunning == 0 && 2 <= waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel <= 2)) || !(switchedOnBeforeTS == \old(pumpRunning)) - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((1 == systemActive && \old(waterLevel) == waterLevel) && tmp == 2)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(1 == systemActive) || (((!(pumpRunning == 0) && tmp == waterLevel) && \old(waterLevel) == waterLevel + 1) && pumpRunning == switchedOnBeforeTS)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && waterLevel == 1)) || ((1 == systemActive && \old(waterLevel) == waterLevel) && tmp == 2)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || (\old(waterLevel) == waterLevel && tmp == 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((!(pumpRunning == 0) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive)) || (((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && tmp == waterLevel) && 1 == systemActive) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && (\old(waterLevel) <= 0 || waterLevel + 1 <= \old(waterLevel)))) || !(\old(waterLevel) <= 2)) || \old(switchedOnBeforeTS) == 0)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || ((((pumpRunning == 0 && tmp == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || !(1 == systemActive))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || !(1 == systemActive)) || (pumpRunning == 0 && 1 == systemActive)) || !(\old(waterLevel) <= 0)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && 1 == systemActive) && splverifierCounter == 0) && waterLevel <= 2) || (((waterLevel <= 1 && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS)) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive)) || (((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((((((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) && (((((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || ((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || !(1 == systemActive))) && ((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && (\old(waterLevel) == waterLevel || waterLevel == 1)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || pumpRunning == switchedOnBeforeTS) || !(2 <= \old(waterLevel)))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || !(\old(waterLevel) <= 2)) || pumpRunning == switchedOnBeforeTS) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: ((((((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (((!(pumpRunning == 0) && waterLevel <= 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && (\old(waterLevel) <= 0 || waterLevel + 1 <= \old(waterLevel)))) || \old(switchedOnBeforeTS) == 0)) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == \old(pumpRunning)) || pumpRunning == 0) || !(1 == systemActive)) || !(\old(waterLevel) <= 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || !(\old(waterLevel) <= 2)) || !(0 == systemActive)) || !(2 <= \old(waterLevel)))) && ((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(1 == systemActive)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || (((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && 1 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) || \old(switchedOnBeforeTS) == 0)) && (((((!(1 == systemActive) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel == 1)) || \old(waterLevel) == waterLevel) || (((!(pumpRunning == 0) && \old(waterLevel) == waterLevel + 1) && 1 == systemActive) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 368]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(waterLevel <= 2)) || pumpRunning == switchedOnBeforeTS) || !(switchedOnBeforeTS == \old(pumpRunning)) - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 222]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-03 01:47:44,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be08bbfb-76a7-4ada-8586-44786a6b99f0/bin/utaipan-7li7fVZpFI/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