./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:18:25,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:18:25,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:18:25,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:18:25,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:18:25,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:18:25,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:18:25,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:18:25,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:18:25,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:18:25,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:18:25,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:18:25,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:18:25,106 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:18:25,108 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:18:25,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:18:25,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:18:25,113 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:18:25,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:18:25,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:18:25,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:18:25,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:18:25,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:18:25,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:18:25,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:18:25,143 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:18:25,143 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:18:25,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:18:25,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:18:25,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:18:25,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:18:25,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:18:25,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:18:25,153 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:18:25,155 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:18:25,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:18:25,156 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:18:25,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:18:25,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:18:25,159 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:18:25,160 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:18:25,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:18:25,209 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:18:25,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:18:25,210 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:18:25,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:18:25,211 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:18:25,212 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:18:25,212 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:18:25,212 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:18:25,213 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:18:25,213 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:18:25,214 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:18:25,215 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:18:25,215 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:18:25,215 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:18:25,215 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:18:25,216 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:18:25,216 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:18:25,216 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:18:25,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:18:25,218 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:18:25,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:18:25,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:18:25,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:18:25,219 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:18:25,219 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:18:25,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:18:25,220 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:18:25,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:18:25,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:18:25,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:18:25,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:18:25,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:18:25,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:18:25,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:18:25,223 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:18:25,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:18:25,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:18:25,224 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:18:25,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:18:25,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:18:25,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:18:25,225 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_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da [2022-11-23 15:18:25,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:18:25,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:18:25,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:18:25,583 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:18:25,584 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:18:25,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2022-11-23 15:18:28,853 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:18:29,181 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:18:29,182 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2022-11-23 15:18:29,193 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/data/6754db673/81ed1f83521f4c1d956457707d2d97de/FLAG5977ab9b5 [2022-11-23 15:18:29,209 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/data/6754db673/81ed1f83521f4c1d956457707d2d97de [2022-11-23 15:18:29,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:18:29,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:18:29,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:18:29,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:18:29,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:18:29,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,225 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b827d36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29, skipping insertion in model container [2022-11-23 15:18:29,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:18:29,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:18:29,481 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2022-11-23 15:18:29,597 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:18:29,609 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:18:29,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2022-11-23 15:18:29,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:18:29,769 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:18:29,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29 WrapperNode [2022-11-23 15:18:29,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:18:29,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:18:29,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:18:29,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:18:29,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,852 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 198 [2022-11-23 15:18:29,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:18:29,853 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:18:29,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:18:29,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:18:29,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,884 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:18:29,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:18:29,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:18:29,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:18:29,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (1/1) ... [2022-11-23 15:18:29,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:18:29,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:18:29,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:18:29,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:18:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:18:29,986 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 15:18:29,987 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 15:18:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 15:18:29,987 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 15:18:29,987 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 15:18:29,987 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 15:18:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 15:18:29,988 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 15:18:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-23 15:18:29,988 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-23 15:18:29,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:18:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 15:18:29,989 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 15:18:29,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:18:29,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:18:30,139 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:18:30,143 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:18:30,581 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:18:30,685 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:18:30,686 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:18:30,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:30 BoogieIcfgContainer [2022-11-23 15:18:30,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:18:30,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:18:30,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:18:30,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:18:30,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:18:29" (1/3) ... [2022-11-23 15:18:30,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7033b46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:18:30, skipping insertion in model container [2022-11-23 15:18:30,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:18:29" (2/3) ... [2022-11-23 15:18:30,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7033b46b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:18:30, skipping insertion in model container [2022-11-23 15:18:30,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:30" (3/3) ... [2022-11-23 15:18:30,698 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2022-11-23 15:18:30,720 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:18:30,721 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:18:30,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:18:30,789 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;@6e3f1516, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:18:30,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:18:30,795 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-23 15:18:30,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:18:30,807 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:18:30,808 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:18:30,810 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:18:30,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:18:30,817 INFO L85 PathProgramCache]: Analyzing trace with hash -388126214, now seen corresponding path program 1 times [2022-11-23 15:18:30,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:18:30,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669485328] [2022-11-23 15:18:30,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:18:30,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:18:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:18:31,099 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:18:31,099 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:18:31,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669485328] [2022-11-23 15:18:31,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669485328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:18:31,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:18:31,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:18:31,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806589682] [2022-11-23 15:18:31,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:18:31,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:18:31,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:18:31,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:18:31,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:18:31,158 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:18:31,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:18:31,277 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-23 15:18:31,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:18:31,281 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-23 15:18:31,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:18:31,292 INFO L225 Difference]: With dead ends: 100 [2022-11-23 15:18:31,293 INFO L226 Difference]: Without dead ends: 46 [2022-11-23 15:18:31,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:18:31,304 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:18:31,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:18:31,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-23 15:18:31,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-23 15:18:31,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-23 15:18:31,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-23 15:18:31,366 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2022-11-23 15:18:31,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:18:31,367 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-23 15:18:31,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:18:31,368 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-23 15:18:31,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:18:31,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:18:31,372 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:18:31,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:18:31,373 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:18:31,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:18:31,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1059750746, now seen corresponding path program 1 times [2022-11-23 15:18:31,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:18:31,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049965164] [2022-11-23 15:18:31,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:18:31,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:18:31,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:18:31,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:18:31,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:18:31,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049965164] [2022-11-23 15:18:31,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049965164] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:18:31,860 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:18:31,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:18:31,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160441298] [2022-11-23 15:18:31,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:18:31,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:18:31,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:18:31,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:18:31,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:18:31,868 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:18:32,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:18:32,696 INFO L93 Difference]: Finished difference Result 195 states and 300 transitions. [2022-11-23 15:18:32,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-23 15:18:32,701 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2022-11-23 15:18:32,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:18:32,709 INFO L225 Difference]: With dead ends: 195 [2022-11-23 15:18:32,709 INFO L226 Difference]: Without dead ends: 109 [2022-11-23 15:18:32,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-23 15:18:32,719 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 123 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:18:32,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 438 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-23 15:18:32,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-23 15:18:32,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2022-11-23 15:18:32,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 76 states have internal predecessors, (82), 24 states have call successors, (24), 16 states have call predecessors, (24), 13 states have return successors, (39), 19 states have call predecessors, (39), 21 states have call successors, (39) [2022-11-23 15:18:32,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 145 transitions. [2022-11-23 15:18:32,767 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 145 transitions. Word has length 24 [2022-11-23 15:18:32,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:18:32,768 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 145 transitions. [2022-11-23 15:18:32,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:18:32,770 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 145 transitions. [2022-11-23 15:18:32,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 15:18:32,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:18:32,774 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:18:32,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:18:32,774 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:18:32,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:18:32,776 INFO L85 PathProgramCache]: Analyzing trace with hash -2078951607, now seen corresponding path program 1 times [2022-11-23 15:18:32,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:18:32,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253273496] [2022-11-23 15:18:32,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:18:32,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:18:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:18:33,235 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:18:33,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:18:33,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253273496] [2022-11-23 15:18:33,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253273496] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:18:33,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:18:33,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 15:18:33,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803453670] [2022-11-23 15:18:33,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:18:33,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 15:18:33,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:18:33,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 15:18:33,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:18:33,238 INFO L87 Difference]: Start difference. First operand 105 states and 145 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-11-23 15:18:33,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:18:33,385 INFO L93 Difference]: Finished difference Result 305 states and 443 transitions. [2022-11-23 15:18:33,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:18:33,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 27 [2022-11-23 15:18:33,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:18:33,389 INFO L225 Difference]: With dead ends: 305 [2022-11-23 15:18:33,389 INFO L226 Difference]: Without dead ends: 183 [2022-11-23 15:18:33,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:18:33,392 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 102 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:18:33,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 210 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:18:33,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-23 15:18:33,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 148. [2022-11-23 15:18:33,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.21875) internal successors, (117), 107 states have internal predecessors, (117), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2022-11-23 15:18:33,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-11-23 15:18:33,421 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 27 [2022-11-23 15:18:33,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:18:33,422 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-11-23 15:18:33,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-11-23 15:18:33,422 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-11-23 15:18:33,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 15:18:33,423 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:18:33,424 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:18:33,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:18:33,424 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:18:33,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:18:33,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2067722784, now seen corresponding path program 1 times [2022-11-23 15:18:33,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:18:33,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859570001] [2022-11-23 15:18:33,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:18:33,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:18:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:18:33,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:18:33,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:18:33,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859570001] [2022-11-23 15:18:33,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859570001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:18:33,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:18:33,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:18:33,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001485339] [2022-11-23 15:18:33,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:18:33,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:18:33,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:18:33,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:18:33,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:18:33,700 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:18:34,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:18:34,283 INFO L93 Difference]: Finished difference Result 405 states and 615 transitions. [2022-11-23 15:18:34,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 15:18:34,284 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-23 15:18:34,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:18:34,289 INFO L225 Difference]: With dead ends: 405 [2022-11-23 15:18:34,289 INFO L226 Difference]: Without dead ends: 155 [2022-11-23 15:18:34,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-23 15:18:34,302 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 169 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:18:34,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 361 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:18:34,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-23 15:18:34,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 148. [2022-11-23 15:18:34,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.2083333333333333) internal successors, (116), 107 states have internal predecessors, (116), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2022-11-23 15:18:34,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2022-11-23 15:18:34,334 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 30 [2022-11-23 15:18:34,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:18:34,335 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2022-11-23 15:18:34,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:18:34,335 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2022-11-23 15:18:34,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 15:18:34,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:18:34,337 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:18:34,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:18:34,338 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:18:34,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:18:34,338 INFO L85 PathProgramCache]: Analyzing trace with hash 795708959, now seen corresponding path program 1 times [2022-11-23 15:18:34,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:18:34,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256366026] [2022-11-23 15:18:34,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:18:34,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:18:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:18:34,602 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 15:18:34,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:18:34,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256366026] [2022-11-23 15:18:34,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256366026] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:18:34,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126506378] [2022-11-23 15:18:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:18:34,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:18:34,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:18:34,610 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:18:34,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:18:34,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:18:34,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-23 15:18:34,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:18:35,059 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:18:35,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:18:35,598 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 15:18:35,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126506378] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:18:35,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2103106439] [2022-11-23 15:18:35,620 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-23 15:18:35,620 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:18:35,624 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:18:35,631 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:18:35,632 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:18:38,485 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 57 for LOIs [2022-11-23 15:18:38,499 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2022-11-23 15:18:38,917 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 55 for LOIs [2022-11-23 15:18:38,934 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:18:45,049 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2721#(and (<= 1 ~pumpRunning~0) (<= |old(~waterLevel~0)| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483647) (<= |timeShift_isMethaneLevelCritical_~retValue_acc~6#1| 0) (<= 1 |timeShift_isHighWaterLevel_~tmp___0~2#1|) (<= |timeShift_isHighWaterLevel_#res#1| 1) (<= 0 |timeShift_isMethaneLevelCritical_#res#1|) (<= ~pumpRunning~0 1) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (<= |timeShift_getWaterLevel_~retValue_acc~7#1| 2147483647) (<= 0 |timeShift_activatePump_~tmp~7#1|) (= ~methaneLevelCritical~0 0) (<= |timeShift_isHighWaterLevel_~tmp~8#1| 0) (<= |timeShift_isHighWaterLevel_~retValue_acc~11#1| 1) (<= 0 |timeShift_isMethaneLevelCritical_~retValue_acc~6#1|) (= ~head~0.offset 0) (<= 1 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= |timeShift_isHighWaterLevel_~tmp___0~2#1| 1) (<= 0 |timeShift_isHighWaterLevel_~tmp~8#1|) (<= 2 ~waterLevel~0) (<= |timeShift_isMethaneLevelCritical_#res#1| 0) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (<= 0 |timeShift_isMethaneAlarm_~retValue_acc~9#1|) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 0 |timeShift_isHighWaterSensorDry_~retValue_acc~8#1|) (<= |timeShift_isMethaneAlarm_#res#1| 0) (<= 2 |timeShift_getWaterLevel_~retValue_acc~7#1|) (<= 2 |old(~waterLevel~0)|) (<= |timeShift_isHighWaterSensorDry_~retValue_acc~8#1| 0) (<= ~waterLevel~0 2147483647) (<= 1 |timeShift_isHighWaterLevel_~retValue_acc~11#1|) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 2 |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_isHighWaterSensorDry_#res#1| 0) (<= 0 |timeShift_isMethaneAlarm_#res#1|) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (<= 1 |timeShift_isHighWaterLevel_#res#1|) (<= |timeShift_processEnvironment_~tmp~6#1| 1) (<= |timeShift_isMethaneAlarm_~retValue_acc~9#1| 0) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_activatePump_~tmp~7#1| 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 15:18:45,049 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:18:45,049 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:18:45,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2022-11-23 15:18:45,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989681323] [2022-11-23 15:18:45,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:18:45,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-23 15:18:45,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:18:45,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-23 15:18:45,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1402, Unknown=0, NotChecked=0, Total=1640 [2022-11-23 15:18:45,053 INFO L87 Difference]: Start difference. First operand 148 states and 195 transitions. Second operand has 18 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 7 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-23 15:18:47,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:18:47,073 INFO L93 Difference]: Finished difference Result 663 states and 1003 transitions. [2022-11-23 15:18:47,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-23 15:18:47,074 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 7 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 47 [2022-11-23 15:18:47,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:18:47,081 INFO L225 Difference]: With dead ends: 663 [2022-11-23 15:18:47,081 INFO L226 Difference]: Without dead ends: 194 [2022-11-23 15:18:47,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1143 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=584, Invalid=3448, Unknown=0, NotChecked=0, Total=4032 [2022-11-23 15:18:47,088 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 602 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:18:47,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 708 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-23 15:18:47,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-23 15:18:47,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 155. [2022-11-23 15:18:47,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 113 states have internal predecessors, (118), 33 states have call successors, (33), 23 states have call predecessors, (33), 20 states have return successors, (50), 27 states have call predecessors, (50), 30 states have call successors, (50) [2022-11-23 15:18:47,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 201 transitions. [2022-11-23 15:18:47,143 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 201 transitions. Word has length 47 [2022-11-23 15:18:47,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:18:47,144 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 201 transitions. [2022-11-23 15:18:47,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 7 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-23 15:18:47,144 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 201 transitions. [2022-11-23 15:18:47,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-23 15:18:47,154 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:18:47,154 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:18:47,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 15:18:47,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:18:47,362 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:18:47,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:18:47,362 INFO L85 PathProgramCache]: Analyzing trace with hash -269337097, now seen corresponding path program 1 times [2022-11-23 15:18:47,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:18:47,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960728341] [2022-11-23 15:18:47,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:18:47,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:18:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:18:47,542 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 15:18:47,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:18:47,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960728341] [2022-11-23 15:18:47,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960728341] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:18:47,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454263245] [2022-11-23 15:18:47,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:18:47,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:18:47,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:18:47,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:18:47,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:18:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:18:47,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-23 15:18:47,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:18:47,721 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-23 15:18:47,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:18:47,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454263245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:18:47,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:18:47,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-23 15:18:47,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001439839] [2022-11-23 15:18:47,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:18:47,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:18:47,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:18:47,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:18:47,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:18:47,724 INFO L87 Difference]: Start difference. First operand 155 states and 201 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:18:47,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:18:47,783 INFO L93 Difference]: Finished difference Result 172 states and 218 transitions. [2022-11-23 15:18:47,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:18:47,784 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-11-23 15:18:47,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:18:47,785 INFO L225 Difference]: With dead ends: 172 [2022-11-23 15:18:47,785 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:18:47,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:18:47,787 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 22 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:18:47,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 27 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:18:47,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:18:47,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:18:47,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:18:47,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:18:47,803 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2022-11-23 15:18:47,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:18:47,803 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:18:47,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-23 15:18:47,804 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:18:47,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:18:47,807 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:18:47,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:18:48,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:18:48,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:18:52,489 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 815 821) no Hoare annotation was computed. [2022-11-23 15:18:52,490 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 815 821) the Hoare annotation is: true [2022-11-23 15:18:52,490 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 647 658) the Hoare annotation is: true [2022-11-23 15:18:52,490 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 647 658) no Hoare annotation was computed. [2022-11-23 15:18:52,490 INFO L899 garLoopResultBuilder]: For program point L795-2(lines 791 813) no Hoare annotation was computed. [2022-11-23 15:18:52,491 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2022-11-23 15:18:52,491 INFO L895 garLoopResultBuilder]: At program point L837(line 837) the Hoare annotation is: (let ((.cse0 (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1))) (.cse1 (<= |timeShift_processEnvironment_~tmp~6#1| 0)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 (= ~waterLevel~0 1) .cse2)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0)) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0) .cse2) (not (= |old(~waterLevel~0)| 2))))) [2022-11-23 15:18:52,491 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse2))) (and (or (not (= |old(~waterLevel~0)| 2)) .cse0) (or .cse1 (and (= ~waterLevel~0 1) .cse2) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0) .cse1 (not (= 1 ~systemActive~0)) .cse0)))) [2022-11-23 15:18:52,491 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2022-11-23 15:18:52,492 INFO L895 garLoopResultBuilder]: At program point L842(line 842) the Hoare annotation is: (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0) .cse0) (or (not (= |old(~waterLevel~0)| 1)) .cse0) (or (not (< 1 |old(~waterLevel~0)|)) .cse0 (not (<= |old(~waterLevel~0)| 2))))) [2022-11-23 15:18:52,492 INFO L895 garLoopResultBuilder]: At program point L842-1(lines 823 847) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0 (and (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1)) (<= |timeShift_processEnvironment_~tmp~6#1| 0) (= ~waterLevel~0 1) .cse1)) (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-23 15:18:52,492 INFO L895 garLoopResultBuilder]: At program point L211(line 211) the Hoare annotation is: (and (not (= |old(~waterLevel~0)| 1)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 2))) [2022-11-23 15:18:52,492 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (= ~waterLevel~0 1)) (or .cse0 (not .cse2) (= ~pumpRunning~0 0) .cse3) (or .cse0 .cse2 .cse4) (or .cse0 .cse5 (and .cse1 .cse2)) (or .cse3 .cse4) (or .cse0 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse5))) [2022-11-23 15:18:52,493 INFO L895 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= |timeShift___utac_acc__Specification5_spec__2_#t~ret4#1| ~pumpRunning~0)) (.cse1 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 (not .cse1) .cse2 .cse3) (or (and .cse4 .cse5) .cse3) (or (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse5)) (or .cse0 (and (not .cse2) .cse4 .cse5) .cse1))) [2022-11-23 15:18:52,493 INFO L895 garLoopResultBuilder]: At program point L802-1(lines 802 808) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (and (not (= ~switchedOnBeforeTS~0 0)) .cse0))) (and (or (and (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) .cse0) (not (= |old(~waterLevel~0)| 1))) (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse1 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-23 15:18:52,493 INFO L895 garLoopResultBuilder]: At program point L831(lines 831 839) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~waterLevel~0)| 1)) (and (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1)) (<= |timeShift_processEnvironment_~tmp~6#1| 0) (= ~waterLevel~0 1) .cse0)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0)))) [2022-11-23 15:18:52,494 INFO L895 garLoopResultBuilder]: At program point L827(lines 827 844) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0))) (let ((.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse1 (= ~waterLevel~0 1)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse0 (not .cse7)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (and (or (and (or .cse0 .cse1) .cse2) (not (= |old(~waterLevel~0)| 1))) (or .cse3 (not .cse4) .cse5 .cse6) (or .cse5 (and (or .cse7 .cse1) (or .cse0 .cse6) .cse2)) (or .cse3 (and .cse0 .cse2) .cse4)))) [2022-11-23 15:18:52,494 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2022-11-23 15:18:52,494 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2022-11-23 15:18:52,497 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 788 814) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (= ~waterLevel~0 1)) (or .cse0 (not .cse2) (= ~pumpRunning~0 0) .cse3) (or .cse0 .cse2 .cse4) (or .cse0 .cse5 (and .cse1 .cse2)) (or .cse3 .cse4) (or .cse0 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse5))) [2022-11-23 15:18:52,498 INFO L895 garLoopResultBuilder]: At program point L80-1(lines 72 100) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (and (not (= ~switchedOnBeforeTS~0 0)) .cse0))) (and (or (and (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) .cse0) .cse1) (or (not (= |old(~waterLevel~0)| 2)) .cse2 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0) .cse1 (not (= 1 ~systemActive~0)) .cse2)))) [2022-11-23 15:18:52,498 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 788 814) no Hoare annotation was computed. [2022-11-23 15:18:52,498 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 211) no Hoare annotation was computed. [2022-11-23 15:18:52,499 INFO L902 garLoopResultBuilder]: At program point L129(lines 104 133) the Hoare annotation is: true [2022-11-23 15:18:52,499 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 104 133) no Hoare annotation was computed. [2022-11-23 15:18:52,499 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-11-23 15:18:52,499 INFO L895 garLoopResultBuilder]: At program point cleanupENTRY(lines 104 133) the Hoare annotation is: (let ((.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (= ~waterLevel~0 1)) (or .cse1 .cse0 .cse2) (or .cse1 (not .cse3) (= ~pumpRunning~0 0) .cse4) (or .cse1 .cse3 .cse5) (or .cse4 .cse5) (or .cse1 (and (not (= ~switchedOnBeforeTS~0 0)) .cse2) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse2))) [2022-11-23 15:18:52,500 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 122) no Hoare annotation was computed. [2022-11-23 15:18:52,500 INFO L895 garLoopResultBuilder]: At program point L118-1(lines 118 122) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (or (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse1) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-23 15:18:52,506 INFO L895 garLoopResultBuilder]: At program point L114-2(lines 114 128) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (or (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse1) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-23 15:18:52,506 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (let ((.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (= ~waterLevel~0 1)) (or .cse1 .cse0 .cse2) (or .cse1 (not .cse3) (= ~pumpRunning~0 0) .cse4) (or .cse1 .cse3 .cse5) (or .cse4 .cse5) (or .cse1 (and (not (= ~switchedOnBeforeTS~0 0)) .cse2) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse2))) [2022-11-23 15:18:52,507 INFO L899 garLoopResultBuilder]: For program point L110-1(line 110) no Hoare annotation was computed. [2022-11-23 15:18:52,507 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 752) no Hoare annotation was computed. [2022-11-23 15:18:52,507 INFO L895 garLoopResultBuilder]: At program point L746-1(lines 746 752) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-23 15:18:52,507 INFO L895 garLoopResultBuilder]: At program point L771(lines 726 773) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-23 15:18:52,509 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (or (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (= ~waterLevel~0 1) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-23 15:18:52,509 INFO L895 garLoopResultBuilder]: At program point L193(lines 193 200) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-23 15:18:52,509 INFO L902 garLoopResultBuilder]: At program point L193-2(lines 193 200) the Hoare annotation is: true [2022-11-23 15:18:52,509 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 15:18:52,509 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:18:52,511 INFO L895 garLoopResultBuilder]: At program point L764-2(lines 756 769) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-23 15:18:52,511 INFO L899 garLoopResultBuilder]: For program point L727(lines 726 773) no Hoare annotation was computed. [2022-11-23 15:18:52,512 INFO L895 garLoopResultBuilder]: At program point L748(line 748) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-23 15:18:52,512 INFO L902 garLoopResultBuilder]: At program point L777(lines 716 781) the Hoare annotation is: true [2022-11-23 15:18:52,512 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 742) no Hoare annotation was computed. [2022-11-23 15:18:52,512 INFO L899 garLoopResultBuilder]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2022-11-23 15:18:52,512 INFO L895 garLoopResultBuilder]: At program point L774(lines 725 775) the Hoare annotation is: (or (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (= ~waterLevel~0 1) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-23 15:18:52,518 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 635 646) no Hoare annotation was computed. [2022-11-23 15:18:52,518 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 635 646) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (= ~pumpRunning~0 0) (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse0) (or (not (= |old(~waterLevel~0)| 2)) .cse0))) [2022-11-23 15:18:52,518 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 893 901) no Hoare annotation was computed. [2022-11-23 15:18:52,519 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 893 901) the Hoare annotation is: true [2022-11-23 15:18:52,522 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-23 15:18:52,525 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:18:52,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:18:52 BoogieIcfgContainer [2022-11-23 15:18:52,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:18:52,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:18:52,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:18:52,575 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:18:52,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:18:30" (3/4) ... [2022-11-23 15:18:52,593 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:18:52,600 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 15:18:52,600 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 15:18:52,600 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 15:18:52,600 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 15:18:52,601 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 15:18:52,601 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-23 15:18:52,608 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-11-23 15:18:52,622 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-23 15:18:52,623 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 15:18:52,624 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:18:52,625 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:18:52,661 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 1) || (waterLevel == 1 && pumpRunning == switchedOnBeforeTS)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-23 15:18:52,662 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == switchedOnBeforeTS) || \old(switchedOnBeforeTS) == 0) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(\old(waterLevel) == 2))) && ((\old(waterLevel) == waterLevel && aux-isPumpRunning()-aux == pumpRunning) || !(\old(waterLevel) == 2))) && (!(\old(waterLevel) == 1) || (waterLevel == 1 && aux-isPumpRunning()-aux == pumpRunning))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || \old(pumpRunning) == 0) [2022-11-23 15:18:52,664 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-23 15:18:52,665 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (\old(waterLevel) == waterLevel && tmp == 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && (((tmp == waterLevel || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) [2022-11-23 15:18:52,666 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel)) && (!(\old(waterLevel) == 2) || (((pumpRunning == 0 || waterLevel == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || \old(pumpRunning) == 0) [2022-11-23 15:18:52,666 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(waterLevel) == 1) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0)) && !(\old(waterLevel) == 2) [2022-11-23 15:18:52,666 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(waterLevel) == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-23 15:18:52,667 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2)) && (!(\old(waterLevel) == 1) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0) [2022-11-23 15:18:52,715 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:18:52,715 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:18:52,716 INFO L158 Benchmark]: Toolchain (without parser) took 23502.07ms. Allocated memory was 180.4MB in the beginning and 377.5MB in the end (delta: 197.1MB). Free memory was 147.3MB in the beginning and 320.2MB in the end (delta: -172.9MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2022-11-23 15:18:52,716 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 138.4MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:18:52,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.87ms. Allocated memory is still 180.4MB. Free memory was 146.7MB in the beginning and 128.4MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 15:18:52,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.73ms. Allocated memory is still 180.4MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:18:52,717 INFO L158 Benchmark]: Boogie Preprocessor took 35.86ms. Allocated memory is still 180.4MB. Free memory was 125.7MB in the beginning and 124.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:18:52,718 INFO L158 Benchmark]: RCFGBuilder took 798.79ms. Allocated memory is still 180.4MB. Free memory was 124.4MB in the beginning and 98.4MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 15:18:52,719 INFO L158 Benchmark]: TraceAbstraction took 21882.92ms. Allocated memory was 180.4MB in the beginning and 377.5MB in the end (delta: 197.1MB). Free memory was 97.8MB in the beginning and 327.5MB in the end (delta: -229.8MB). Peak memory consumption was 182.6MB. Max. memory is 16.1GB. [2022-11-23 15:18:52,720 INFO L158 Benchmark]: Witness Printer took 140.66ms. Allocated memory is still 377.5MB. Free memory was 327.5MB in the beginning and 320.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 15:18:52,723 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 138.4MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 553.87ms. Allocated memory is still 180.4MB. Free memory was 146.7MB in the beginning and 128.4MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.73ms. Allocated memory is still 180.4MB. Free memory was 127.8MB in the beginning and 125.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.86ms. Allocated memory is still 180.4MB. Free memory was 125.7MB in the beginning and 124.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 798.79ms. Allocated memory is still 180.4MB. Free memory was 124.4MB in the beginning and 98.4MB in the end (delta: 25.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 21882.92ms. Allocated memory was 180.4MB in the beginning and 377.5MB in the end (delta: 197.1MB). Free memory was 97.8MB in the beginning and 327.5MB in the end (delta: -229.8MB). Peak memory consumption was 182.6MB. Max. memory is 16.1GB. * Witness Printer took 140.66ms. Allocated memory is still 377.5MB. Free memory was 327.5MB in the beginning and 320.2MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. 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: 211]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.8s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1034 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1018 mSDsluCounter, 1793 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1309 mSDsCounter, 742 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2000 IncrementalHoareTripleChecker+Invalid, 2742 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 742 mSolverCounterUnsat, 484 mSDtfsCounter, 2000 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 291 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1230 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=5, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 85 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 1400 PreInvPairs, 2472 NumberOfFragments, 1208 HoareAnnotationTreeSize, 1400 FomulaSimplifications, 9893 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 31 FomulaSimplificationsInter, 12297 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 338 ConstructedInterpolants, 0 QuantifiedInterpolants, 969 SizeOfPredicates, 14 NumberOfNonLiveVariables, 566 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 108/121 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: 725]: Loop Invariant Derived loop invariant: ((!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS) || waterLevel == 1) || (1 < waterLevel && waterLevel <= 2) - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 1) || (waterLevel == 1 && pumpRunning == switchedOnBeforeTS)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: ((1 == systemActive && tmp == 1) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: (!(\old(waterLevel) == 1) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0)) && !(\old(waterLevel) == 2) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (\old(waterLevel) == waterLevel && tmp == 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && (((tmp == waterLevel || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) - InvariantResult [Line: 716]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 823]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2)) && (!(\old(waterLevel) == 1) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0) - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel)) && (!(\old(waterLevel) == 2) || (((pumpRunning == 0 || waterLevel == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || \old(pumpRunning) == 0) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == switchedOnBeforeTS) || \old(switchedOnBeforeTS) == 0) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(\old(waterLevel) == 2))) && ((\old(waterLevel) == waterLevel && aux-isPumpRunning()-aux == pumpRunning) || !(\old(waterLevel) == 2))) && (!(\old(waterLevel) == 1) || (waterLevel == 1 && aux-isPumpRunning()-aux == pumpRunning))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || \old(pumpRunning) == 0) - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: ((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 746]: Loop Invariant Derived loop invariant: (((1 == systemActive && tmp == 1) && waterLevel == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (1 < waterLevel && waterLevel <= 2) - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: (((1 == systemActive && tmp == 1) && waterLevel == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (1 < waterLevel && waterLevel <= 2) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 15:18:52,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7e897ac-5a86-4dd5-ada2-d85102d693ee/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE