./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 9e826f48819dedbf1a290c3ced69eb835c065ed69febc6d0054f416e73afcb1c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:16:38,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:16:38,911 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 14:16:38,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:16:38,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:16:38,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:16:38,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:16:38,941 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:16:38,942 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:16:38,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:16:38,943 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:16:38,943 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:16:38,944 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:16:38,944 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:16:38,945 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:16:38,945 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:16:38,946 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:16:38,946 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:16:38,947 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:16:38,947 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:16:38,948 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:16:38,948 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:16:38,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:16:38,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:16:38,950 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:16:38,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:16:38,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:16:38,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:16:38,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:16:38,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:16:38,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:16:38,953 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:16:38,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:16:38,953 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:16:38,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:16:38,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:16:38,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:16:38,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:16:38,954 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:16:38,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:16:38,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:16:38,955 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:16:38,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:16:38,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:16:38,956 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:16:38,956 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:16:38,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:16:38,956 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e826f48819dedbf1a290c3ced69eb835c065ed69febc6d0054f416e73afcb1c [2023-12-02 14:16:39,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:16:39,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:16:39,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:16:39,212 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:16:39,212 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:16:39,213 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2023-12-02 14:16:41,990 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:16:42,221 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:16:42,222 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2023-12-02 14:16:42,237 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/data/6ef712e4d/f764244ca6f442adae2d6078b1f2c386/FLAGb01212794 [2023-12-02 14:16:42,253 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/data/6ef712e4d/f764244ca6f442adae2d6078b1f2c386 [2023-12-02 14:16:42,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:16:42,257 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:16:42,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:16:42,259 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:16:42,264 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:16:42,265 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,266 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@710f1670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42, skipping insertion in model container [2023-12-02 14:16:42,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,319 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:16:42,546 WARN L240 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_722287dc-6cc5-4854-a836-3a9941794599/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c[13125,13138] [2023-12-02 14:16:42,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:16:42,587 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:16:42,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-12-02 14:16:42,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] [2023-12-02 14:16:42,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [521] [2023-12-02 14:16:42,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [556] [2023-12-02 14:16:42,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [565] [2023-12-02 14:16:42,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [633] [2023-12-02 14:16:42,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [742] [2023-12-02 14:16:42,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [988] [2023-12-02 14:16:42,636 WARN L240 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_722287dc-6cc5-4854-a836-3a9941794599/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c[13125,13138] [2023-12-02 14:16:42,650 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:16:42,670 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:16:42,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42 WrapperNode [2023-12-02 14:16:42,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:16:42,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:16:42,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:16:42,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:16:42,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,720 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 238 [2023-12-02 14:16:42,720 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:16:42,721 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:16:42,721 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:16:42,721 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:16:42,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,734 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,734 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,740 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,744 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,746 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,748 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:16:42,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:16:42,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:16:42,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:16:42,753 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (1/1) ... [2023-12-02 14:16:42,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:16:42,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:16:42,782 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:16:42,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:16:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:16:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-02 14:16:42,822 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-02 14:16:42,822 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 14:16:42,823 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 14:16:42,823 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 14:16:42,823 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 14:16:42,823 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-02 14:16:42,823 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-02 14:16:42,823 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 14:16:42,824 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 14:16:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2023-12-02 14:16:42,824 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2023-12-02 14:16:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-12-02 14:16:42,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-12-02 14:16:42,824 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-02 14:16:42,825 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-02 14:16:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:16:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 14:16:42,825 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 14:16:42,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:16:42,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:16:42,904 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:16:42,906 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:16:43,199 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:16:43,295 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:16:43,295 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 14:16:43,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:16:43 BoogieIcfgContainer [2023-12-02 14:16:43,297 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:16:43,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:16:43,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:16:43,303 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:16:43,303 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:16:42" (1/3) ... [2023-12-02 14:16:43,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d4446d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:16:43, skipping insertion in model container [2023-12-02 14:16:43,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:16:42" (2/3) ... [2023-12-02 14:16:43,304 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d4446d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:16:43, skipping insertion in model container [2023-12-02 14:16:43,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:16:43" (3/3) ... [2023-12-02 14:16:43,306 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2023-12-02 14:16:43,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:16:43,325 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:16:43,366 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:16:43,371 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=LoopHeads, 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;@7e5a7d28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:16:43,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:16:43,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 57 states have internal predecessors, (67), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-02 14:16:43,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 14:16:43,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:16:43,383 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] [2023-12-02 14:16:43,383 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:16:43,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:16:43,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1666766303, now seen corresponding path program 1 times [2023-12-02 14:16:43,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:16:43,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798242179] [2023-12-02 14:16:43,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:43,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:16:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:16:43,545 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:16:43,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:16:43,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798242179] [2023-12-02 14:16:43,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798242179] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:16:43,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:16:43,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:16:43,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641584586] [2023-12-02 14:16:43,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:16:43,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 14:16:43,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:16:43,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 14:16:43,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:16:43,581 INFO L87 Difference]: Start difference. First operand has 74 states, 46 states have (on average 1.4565217391304348) internal successors, (67), 57 states have internal predecessors, (67), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) 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) [2023-12-02 14:16:43,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:16:43,642 INFO L93 Difference]: Finished difference Result 146 states and 203 transitions. [2023-12-02 14:16:43,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 14:16:43,644 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 [2023-12-02 14:16:43,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:16:43,651 INFO L225 Difference]: With dead ends: 146 [2023-12-02 14:16:43,651 INFO L226 Difference]: Without dead ends: 69 [2023-12-02 14:16:43,655 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 [2023-12-02 14:16:43,659 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:16:43,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:16:43,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-12-02 14:16:43,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-12-02 14:16:43,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 43 states have (on average 1.372093023255814) internal successors, (59), 53 states have internal predecessors, (59), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 14:16:43,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 92 transitions. [2023-12-02 14:16:43,697 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 92 transitions. Word has length 21 [2023-12-02 14:16:43,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:16:43,698 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 92 transitions. [2023-12-02 14:16:43,698 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) [2023-12-02 14:16:43,698 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 92 transitions. [2023-12-02 14:16:43,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 14:16:43,701 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:16:43,701 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] [2023-12-02 14:16:43,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:16:43,702 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:16:43,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:16:43,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1935745581, now seen corresponding path program 1 times [2023-12-02 14:16:43,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:16:43,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943545346] [2023-12-02 14:16:43,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:43,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:16:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:16:43,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:16:43,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:16:43,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943545346] [2023-12-02 14:16:43,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943545346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:16:43,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:16:43,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:16:43,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955616098] [2023-12-02 14:16:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:16:43,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:16:43,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:16:43,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:16:43,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:16:43,802 INFO L87 Difference]: Start difference. First operand 69 states and 92 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:16:43,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:16:43,844 INFO L93 Difference]: Finished difference Result 110 states and 146 transitions. [2023-12-02 14:16:43,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:16:43,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-12-02 14:16:43,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:16:43,846 INFO L225 Difference]: With dead ends: 110 [2023-12-02 14:16:43,847 INFO L226 Difference]: Without dead ends: 61 [2023-12-02 14:16:43,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:16:43,849 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 14 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:16:43,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:16:43,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-12-02 14:16:43,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-12-02 14:16:43,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 38 states have (on average 1.394736842105263) internal successors, (53), 48 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 14:16:43,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 81 transitions. [2023-12-02 14:16:43,861 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 81 transitions. Word has length 22 [2023-12-02 14:16:43,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:16:43,862 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 81 transitions. [2023-12-02 14:16:43,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:16:43,862 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2023-12-02 14:16:43,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-02 14:16:43,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:16:43,864 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] [2023-12-02 14:16:43,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:16:43,865 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:16:43,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:16:43,865 INFO L85 PathProgramCache]: Analyzing trace with hash -745172865, now seen corresponding path program 1 times [2023-12-02 14:16:43,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:16:43,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298801125] [2023-12-02 14:16:43,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:43,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:16:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:16:43,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:16:43,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:16:43,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298801125] [2023-12-02 14:16:43,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298801125] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:16:43,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:16:43,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:16:43,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992856162] [2023-12-02 14:16:43,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:16:43,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:16:43,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:16:43,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:16:43,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:16:43,961 INFO L87 Difference]: Start difference. First operand 61 states and 81 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 14:16:44,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:16:44,030 INFO L93 Difference]: Finished difference Result 179 states and 240 transitions. [2023-12-02 14:16:44,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:16:44,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2023-12-02 14:16:44,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:16:44,060 INFO L225 Difference]: With dead ends: 179 [2023-12-02 14:16:44,060 INFO L226 Difference]: Without dead ends: 120 [2023-12-02 14:16:44,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:16:44,062 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 66 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 14:16:44,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 142 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 14:16:44,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-02 14:16:44,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2023-12-02 14:16:44,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 72 states have (on average 1.4027777777777777) internal successors, (101), 91 states have internal predecessors, (101), 28 states have call successors, (28), 16 states have call predecessors, (28), 16 states have return successors, (28), 17 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-02 14:16:44,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 157 transitions. [2023-12-02 14:16:44,099 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 157 transitions. Word has length 25 [2023-12-02 14:16:44,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:16:44,099 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 157 transitions. [2023-12-02 14:16:44,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 14:16:44,099 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 157 transitions. [2023-12-02 14:16:44,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 14:16:44,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:16:44,102 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] [2023-12-02 14:16:44,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:16:44,102 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:16:44,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:16:44,103 INFO L85 PathProgramCache]: Analyzing trace with hash 798157568, now seen corresponding path program 1 times [2023-12-02 14:16:44,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:16:44,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401077639] [2023-12-02 14:16:44,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:44,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:16:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:16:44,245 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 14:16:44,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:16:44,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401077639] [2023-12-02 14:16:44,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401077639] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:16:44,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:16:44,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 14:16:44,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609474070] [2023-12-02 14:16:44,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:16:44,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:16:44,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:16:44,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:16:44,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:16:44,248 INFO L87 Difference]: Start difference. First operand 117 states and 157 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:16:44,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:16:44,437 INFO L93 Difference]: Finished difference Result 318 states and 437 transitions. [2023-12-02 14:16:44,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 14:16:44,438 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-12-02 14:16:44,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:16:44,441 INFO L225 Difference]: With dead ends: 318 [2023-12-02 14:16:44,441 INFO L226 Difference]: Without dead ends: 203 [2023-12-02 14:16:44,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 14:16:44,444 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 41 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:16:44,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 305 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:16:44,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-02 14:16:44,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 198. [2023-12-02 14:16:44,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 129 states have (on average 1.310077519379845) internal successors, (169), 146 states have internal predecessors, (169), 38 states have call successors, (38), 30 states have call predecessors, (38), 30 states have return successors, (50), 33 states have call predecessors, (50), 38 states have call successors, (50) [2023-12-02 14:16:44,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 257 transitions. [2023-12-02 14:16:44,474 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 257 transitions. Word has length 28 [2023-12-02 14:16:44,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:16:44,474 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 257 transitions. [2023-12-02 14:16:44,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 14:16:44,475 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 257 transitions. [2023-12-02 14:16:44,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 14:16:44,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:16:44,477 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:16:44,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 14:16:44,477 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:16:44,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:16:44,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1485413747, now seen corresponding path program 1 times [2023-12-02 14:16:44,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:16:44,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78859960] [2023-12-02 14:16:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:44,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:16:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:16:44,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:16:44,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:16:44,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78859960] [2023-12-02 14:16:44,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78859960] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:16:44,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:16:44,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 14:16:44,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654317398] [2023-12-02 14:16:44,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:16:44,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 14:16:44,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:16:44,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 14:16:44,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:16:44,716 INFO L87 Difference]: Start difference. First operand 198 states and 257 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 14:16:44,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:16:44,934 INFO L93 Difference]: Finished difference Result 590 states and 762 transitions. [2023-12-02 14:16:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 14:16:44,935 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 38 [2023-12-02 14:16:44,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:16:44,940 INFO L225 Difference]: With dead ends: 590 [2023-12-02 14:16:44,940 INFO L226 Difference]: Without dead ends: 394 [2023-12-02 14:16:44,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-02 14:16:44,942 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 119 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 14:16:44,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 265 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 14:16:44,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-12-02 14:16:44,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 384. [2023-12-02 14:16:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 251 states have (on average 1.2868525896414342) internal successors, (323), 279 states have internal predecessors, (323), 71 states have call successors, (71), 59 states have call predecessors, (71), 61 states have return successors, (95), 64 states have call predecessors, (95), 71 states have call successors, (95) [2023-12-02 14:16:44,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 489 transitions. [2023-12-02 14:16:44,991 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 489 transitions. Word has length 38 [2023-12-02 14:16:44,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:16:44,992 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 489 transitions. [2023-12-02 14:16:44,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 14:16:44,992 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 489 transitions. [2023-12-02 14:16:44,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 14:16:44,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:16:44,995 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:16:44,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 14:16:44,995 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:16:44,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:16:44,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1979231696, now seen corresponding path program 1 times [2023-12-02 14:16:44,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:16:44,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955422180] [2023-12-02 14:16:44,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:44,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:16:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:16:45,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:16:45,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:16:45,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955422180] [2023-12-02 14:16:45,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955422180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:16:45,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:16:45,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 14:16:45,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027021035] [2023-12-02 14:16:45,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:16:45,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 14:16:45,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:16:45,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 14:16:45,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 14:16:45,218 INFO L87 Difference]: Start difference. First operand 384 states and 489 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 14:16:45,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:16:45,718 INFO L93 Difference]: Finished difference Result 886 states and 1145 transitions. [2023-12-02 14:16:45,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 14:16:45,719 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 41 [2023-12-02 14:16:45,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:16:45,724 INFO L225 Difference]: With dead ends: 886 [2023-12-02 14:16:45,724 INFO L226 Difference]: Without dead ends: 616 [2023-12-02 14:16:45,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-12-02 14:16:45,726 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 211 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 14:16:45,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 287 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 14:16:45,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2023-12-02 14:16:45,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 566. [2023-12-02 14:16:45,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 376 states have (on average 1.2792553191489362) internal successors, (481), 416 states have internal predecessors, (481), 100 states have call successors, (100), 76 states have call predecessors, (100), 89 states have return successors, (139), 99 states have call predecessors, (139), 100 states have call successors, (139) [2023-12-02 14:16:45,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 720 transitions. [2023-12-02 14:16:45,791 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 720 transitions. Word has length 41 [2023-12-02 14:16:45,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:16:45,791 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 720 transitions. [2023-12-02 14:16:45,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 5 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 14:16:45,792 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 720 transitions. [2023-12-02 14:16:45,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 14:16:45,794 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:16:45,795 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:16:45,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 14:16:45,795 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:16:45,795 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:16:45,796 INFO L85 PathProgramCache]: Analyzing trace with hash -995413261, now seen corresponding path program 1 times [2023-12-02 14:16:45,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:16:45,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895265537] [2023-12-02 14:16:45,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:45,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:16:45,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:16:45,844 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 14:16:45,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:16:45,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895265537] [2023-12-02 14:16:45,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895265537] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:16:45,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:16:45,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 14:16:45,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288511242] [2023-12-02 14:16:45,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:16:45,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 14:16:45,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:16:45,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 14:16:45,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:16:45,847 INFO L87 Difference]: Start difference. First operand 566 states and 720 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-02 14:16:45,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:16:45,981 INFO L93 Difference]: Finished difference Result 672 states and 854 transitions. [2023-12-02 14:16:45,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 14:16:45,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 62 [2023-12-02 14:16:45,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:16:45,984 INFO L225 Difference]: With dead ends: 672 [2023-12-02 14:16:45,984 INFO L226 Difference]: Without dead ends: 273 [2023-12-02 14:16:45,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 14:16:45,986 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 106 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:16:45,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 144 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:16:45,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2023-12-02 14:16:46,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2023-12-02 14:16:46,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 182 states have (on average 1.2307692307692308) internal successors, (224), 200 states have internal predecessors, (224), 47 states have call successors, (47), 36 states have call predecessors, (47), 43 states have return successors, (66), 48 states have call predecessors, (66), 47 states have call successors, (66) [2023-12-02 14:16:46,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 337 transitions. [2023-12-02 14:16:46,019 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 337 transitions. Word has length 62 [2023-12-02 14:16:46,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:16:46,019 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 337 transitions. [2023-12-02 14:16:46,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-02 14:16:46,020 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 337 transitions. [2023-12-02 14:16:46,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 14:16:46,021 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:16:46,022 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:16:46,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 14:16:46,022 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:16:46,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:16:46,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1029822250, now seen corresponding path program 1 times [2023-12-02 14:16:46,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:16:46,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232327972] [2023-12-02 14:16:46,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:46,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:16:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:16:46,168 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-12-02 14:16:46,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:16:46,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232327972] [2023-12-02 14:16:46,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232327972] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:16:46,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235631688] [2023-12-02 14:16:46,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:46,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:16:46,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:16:46,178 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:16:46,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:16:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:16:46,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 14:16:46,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:16:46,435 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 14:16:46,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:16:46,614 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 14:16:46,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235631688] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:16:46,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [628861433] [2023-12-02 14:16:46,633 INFO L159 IcfgInterpreter]: Started Sifa with 44 locations of interest [2023-12-02 14:16:46,633 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:16:46,636 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:16:46,640 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:16:46,640 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:16:49,215 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 18 for LOIs [2023-12-02 14:16:49,220 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 10 for LOIs [2023-12-02 14:16:49,357 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 33 for LOIs [2023-12-02 14:16:49,382 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 11 for LOIs [2023-12-02 14:16:49,402 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 1 for LOIs [2023-12-02 14:16:49,404 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:16:51,167 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6756#(and (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 1) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| |timeShift_getWaterLevel_#res#1|) (<= |old(~pumpRunning~0)| 2147483647) (<= 2 |old(~waterLevel~0)|) (<= ~waterLevel~0 2147483647) (<= 2 |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| 2)) (= ~switchedOnBeforeTS~0 0) (= ~pumpRunning~0 1))' at error location [2023-12-02 14:16:51,168 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:16:51,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:16:51,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2023-12-02 14:16:51,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534329782] [2023-12-02 14:16:51,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:16:51,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-02 14:16:51,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:16:51,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-02 14:16:51,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=1941, Unknown=0, NotChecked=0, Total=2162 [2023-12-02 14:16:51,172 INFO L87 Difference]: Start difference. First operand 273 states and 337 transitions. Second operand has 14 states, 12 states have (on average 8.083333333333334) internal successors, (97), 13 states have internal predecessors, (97), 8 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (21), 10 states have call predecessors, (21), 8 states have call successors, (21) [2023-12-02 14:16:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:16:51,884 INFO L93 Difference]: Finished difference Result 444 states and 551 transitions. [2023-12-02 14:16:51,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 14:16:51,885 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 8.083333333333334) internal successors, (97), 13 states have internal predecessors, (97), 8 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (21), 10 states have call predecessors, (21), 8 states have call successors, (21) Word has length 73 [2023-12-02 14:16:51,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:16:51,887 INFO L225 Difference]: With dead ends: 444 [2023-12-02 14:16:51,887 INFO L226 Difference]: Without dead ends: 298 [2023-12-02 14:16:51,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 188 SyntacticMatches, 4 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1384 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=412, Invalid=3620, Unknown=0, NotChecked=0, Total=4032 [2023-12-02 14:16:51,891 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 271 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:16:51,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 634 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 14:16:51,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2023-12-02 14:16:51,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 296. [2023-12-02 14:16:51,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 196 states have (on average 1.1887755102040816) internal successors, (233), 215 states have internal predecessors, (233), 50 states have call successors, (50), 42 states have call predecessors, (50), 49 states have return successors, (62), 52 states have call predecessors, (62), 50 states have call successors, (62) [2023-12-02 14:16:51,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 345 transitions. [2023-12-02 14:16:51,920 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 345 transitions. Word has length 73 [2023-12-02 14:16:51,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:16:51,921 INFO L495 AbstractCegarLoop]: Abstraction has 296 states and 345 transitions. [2023-12-02 14:16:51,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 8.083333333333334) internal successors, (97), 13 states have internal predecessors, (97), 8 states have call successors, (21), 5 states have call predecessors, (21), 8 states have return successors, (21), 10 states have call predecessors, (21), 8 states have call successors, (21) [2023-12-02 14:16:51,921 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 345 transitions. [2023-12-02 14:16:51,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 14:16:51,923 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:16:51,923 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:16:51,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:16:52,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-02 14:16:52,124 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:16:52,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:16:52,125 INFO L85 PathProgramCache]: Analyzing trace with hash 272379047, now seen corresponding path program 1 times [2023-12-02 14:16:52,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:16:52,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419986994] [2023-12-02 14:16:52,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:52,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:16:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:16:52,379 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-02 14:16:52,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:16:52,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419986994] [2023-12-02 14:16:52,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419986994] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:16:52,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1800089521] [2023-12-02 14:16:52,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:16:52,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:16:52,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:16:52,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:16:52,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 14:16:52,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:16:52,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 14:16:52,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:16:52,684 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 66 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 14:16:52,684 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:16:52,971 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 14:16:52,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1800089521] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:16:52,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2084626497] [2023-12-02 14:16:52,974 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2023-12-02 14:16:52,974 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:16:52,975 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:16:52,975 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:16:52,975 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:16:59,288 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 158 for LOIs [2023-12-02 14:16:59,468 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 12 for LOIs [2023-12-02 14:16:59,572 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 11 for LOIs [2023-12-02 14:16:59,590 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 11 for LOIs [2023-12-02 14:16:59,608 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 5 for LOIs [2023-12-02 14:16:59,609 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 22 for LOIs [2023-12-02 14:16:59,612 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:17:04,273 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8409#(and (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| 2147483647) (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (<= 0 |old(~pumpRunning~0)|) (<= ~pumpRunning~0 1) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| |timeShift_getWaterLevel_#res#1|) (<= |old(~pumpRunning~0)| 2147483647) (<= 0 (+ ~waterLevel~0 2147483648)) (<= 0 ~pumpRunning~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| 2)) (= ~switchedOnBeforeTS~0 0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|))' at error location [2023-12-02 14:17:04,273 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:17:04,274 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:17:04,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 20 [2023-12-02 14:17:04,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457189251] [2023-12-02 14:17:04,274 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:17:04,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 14:17:04,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:17:04,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 14:17:04,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=2662, Unknown=0, NotChecked=0, Total=2970 [2023-12-02 14:17:04,277 INFO L87 Difference]: Start difference. First operand 296 states and 345 transitions. Second operand has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) [2023-12-02 14:17:05,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:17:05,519 INFO L93 Difference]: Finished difference Result 867 states and 1094 transitions. [2023-12-02 14:17:05,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-02 14:17:05,520 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) Word has length 96 [2023-12-02 14:17:05,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:17:05,524 INFO L225 Difference]: With dead ends: 867 [2023-12-02 14:17:05,524 INFO L226 Difference]: Without dead ends: 565 [2023-12-02 14:17:05,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 256 SyntacticMatches, 3 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2403 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=737, Invalid=6235, Unknown=0, NotChecked=0, Total=6972 [2023-12-02 14:17:05,530 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 434 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-02 14:17:05,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 527 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-02 14:17:05,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-12-02 14:17:05,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 386. [2023-12-02 14:17:05,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 256 states have (on average 1.15625) internal successors, (296), 279 states have internal predecessors, (296), 63 states have call successors, (63), 56 states have call predecessors, (63), 66 states have return successors, (83), 67 states have call predecessors, (83), 63 states have call successors, (83) [2023-12-02 14:17:05,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 442 transitions. [2023-12-02 14:17:05,575 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 442 transitions. Word has length 96 [2023-12-02 14:17:05,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:17:05,576 INFO L495 AbstractCegarLoop]: Abstraction has 386 states and 442 transitions. [2023-12-02 14:17:05,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 20 states have internal predecessors, (113), 9 states have call successors, (23), 5 states have call predecessors, (23), 8 states have return successors, (24), 10 states have call predecessors, (24), 9 states have call successors, (24) [2023-12-02 14:17:05,576 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 442 transitions. [2023-12-02 14:17:05,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 14:17:05,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:17:05,578 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:17:05,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 14:17:05,779 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-02 14:17:05,779 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:17:05,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:17:05,780 INFO L85 PathProgramCache]: Analyzing trace with hash 1728542760, now seen corresponding path program 1 times [2023-12-02 14:17:05,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:17:05,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579685883] [2023-12-02 14:17:05,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:17:05,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:17:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:17:05,935 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-02 14:17:05,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:17:05,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579685883] [2023-12-02 14:17:05,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579685883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:17:05,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:17:05,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 14:17:05,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871031392] [2023-12-02 14:17:05,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:17:05,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 14:17:05,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:17:05,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 14:17:05,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 14:17:05,937 INFO L87 Difference]: Start difference. First operand 386 states and 442 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-02 14:17:06,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:17:06,117 INFO L93 Difference]: Finished difference Result 988 states and 1136 transitions. [2023-12-02 14:17:06,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 14:17:06,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 101 [2023-12-02 14:17:06,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:17:06,122 INFO L225 Difference]: With dead ends: 988 [2023-12-02 14:17:06,122 INFO L226 Difference]: Without dead ends: 768 [2023-12-02 14:17:06,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 14:17:06,123 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 157 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:17:06,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 180 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:17:06,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2023-12-02 14:17:06,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 766. [2023-12-02 14:17:06,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 509 states have (on average 1.1532416502946954) internal successors, (587), 552 states have internal predecessors, (587), 124 states have call successors, (124), 112 states have call predecessors, (124), 132 states have return successors, (164), 134 states have call predecessors, (164), 124 states have call successors, (164) [2023-12-02 14:17:06,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 875 transitions. [2023-12-02 14:17:06,190 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 875 transitions. Word has length 101 [2023-12-02 14:17:06,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:17:06,190 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 875 transitions. [2023-12-02 14:17:06,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 4 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-02 14:17:06,190 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 875 transitions. [2023-12-02 14:17:06,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 14:17:06,192 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:17:06,192 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:17:06,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 14:17:06,193 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:17:06,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:17:06,193 INFO L85 PathProgramCache]: Analyzing trace with hash -593690129, now seen corresponding path program 1 times [2023-12-02 14:17:06,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:17:06,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921740023] [2023-12-02 14:17:06,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:17:06,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:17:06,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:17:06,885 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 10 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-02 14:17:06,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:17:06,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921740023] [2023-12-02 14:17:06,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921740023] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:17:06,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137470037] [2023-12-02 14:17:06,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:17:06,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:17:06,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:17:06,887 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:17:06,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 14:17:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:17:06,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 14:17:06,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:17:07,427 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 25 proven. 57 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 14:17:07,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:17:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 54 proven. 5 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-12-02 14:17:08,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137470037] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:17:08,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1443518530] [2023-12-02 14:17:08,046 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2023-12-02 14:17:08,046 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:17:08,047 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:17:08,047 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:17:08,047 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:17:10,326 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 137 for LOIs [2023-12-02 14:17:10,399 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 25 for LOIs [2023-12-02 14:17:10,559 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__lowWaterSensor with input of size 25 for LOIs [2023-12-02 14:17:10,586 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 25 for LOIs [2023-12-02 14:17:10,612 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 36 for LOIs [2023-12-02 14:17:10,618 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 8 for LOIs [2023-12-02 14:17:10,620 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 31 for LOIs [2023-12-02 14:17:10,623 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:17:13,965 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '13187#(and (<= ~methaneLevelCritical~0 1) (= ~waterLevel~0 |timeShift_getWaterLevel_#res#1|) (<= ~pumpRunning~0 1) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1| 0)) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| |timeShift_getWaterLevel_#res#1|) (<= |old(~pumpRunning~0)| 2147483647) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| 2147483648)) (<= 0 ~methaneLevelCritical~0) (<= ~waterLevel~0 2147483647) (<= 0 ~pumpRunning~0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| 2)) (= ~switchedOnBeforeTS~0 0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~3#1|))' at error location [2023-12-02 14:17:13,965 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 14:17:13,965 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:17:13,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13, 11] total 35 [2023-12-02 14:17:13,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655335807] [2023-12-02 14:17:13,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 14:17:13,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-12-02 14:17:13,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:17:13,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-12-02 14:17:13,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=451, Invalid=4519, Unknown=0, NotChecked=0, Total=4970 [2023-12-02 14:17:13,969 INFO L87 Difference]: Start difference. First operand 766 states and 875 transitions. Second operand has 35 states, 33 states have (on average 5.515151515151516) internal successors, (182), 34 states have internal predecessors, (182), 19 states have call successors, (39), 9 states have call predecessors, (39), 14 states have return successors, (38), 19 states have call predecessors, (38), 18 states have call successors, (38) [2023-12-02 14:17:16,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:17:16,342 INFO L93 Difference]: Finished difference Result 1914 states and 2269 transitions. [2023-12-02 14:17:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 14:17:16,343 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 33 states have (on average 5.515151515151516) internal successors, (182), 34 states have internal predecessors, (182), 19 states have call successors, (39), 9 states have call predecessors, (39), 14 states have return successors, (38), 19 states have call predecessors, (38), 18 states have call successors, (38) Word has length 104 [2023-12-02 14:17:16,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:17:16,344 INFO L225 Difference]: With dead ends: 1914 [2023-12-02 14:17:16,344 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 14:17:16,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 272 SyntacticMatches, 13 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5440 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1369, Invalid=11063, Unknown=0, NotChecked=0, Total=12432 [2023-12-02 14:17:16,354 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 1149 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 857 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1150 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 3261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 857 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-02 14:17:16,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1150 Valid, 1476 Invalid, 3261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [857 Valid, 2404 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-02 14:17:16,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 14:17:16,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 14:17:16,355 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) [2023-12-02 14:17:16,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 14:17:16,356 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2023-12-02 14:17:16,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:17:16,356 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 14:17:16,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 33 states have (on average 5.515151515151516) internal successors, (182), 34 states have internal predecessors, (182), 19 states have call successors, (39), 9 states have call predecessors, (39), 14 states have return successors, (38), 19 states have call predecessors, (38), 18 states have call successors, (38) [2023-12-02 14:17:16,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 14:17:16,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 14:17:16,359 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 14:17:16,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 14:17:16,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-02 14:17:16,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 14:17:22,498 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 871 878) no Hoare annotation was computed. [2023-12-02 14:17:22,498 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 871 878) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< ~switchedOnBeforeTS~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 (< 0 ~waterLevel~0) .cse1 .cse2 .cse3))) [2023-12-02 14:17:22,498 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 778 784) no Hoare annotation was computed. [2023-12-02 14:17:22,498 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 778 784) the Hoare annotation is: true [2023-12-02 14:17:22,498 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 666 677) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 0)) (.cse6 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse10 (< 0 ~waterLevel~0)) (.cse11 (not (= 2 ~waterLevel~0))) (.cse5 (not (= ~waterLevel~0 1))) (.cse1 (not .cse6)) (.cse7 (< ~switchedOnBeforeTS~0 1)) (.cse9 (not (= ~pumpRunning~0 1))) (.cse0 (< 2 ~waterLevel~0)) (.cse2 (not (= ~pumpRunning~0 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse8 (not .cse3))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse4 .cse6 .cse7 .cse8 .cse9) (or .cse4 .cse10 .cse6 .cse7 .cse8 .cse9) (or .cse4 .cse11 .cse6 .cse8 .cse9) (or .cse1 .cse3 .cse4 .cse10 .cse7 .cse9) (or .cse1 .cse3 .cse4 .cse11 .cse9) (or .cse5 .cse1 .cse3 .cse4 .cse7 .cse9) (or .cse0 .cse2 .cse4 .cse6 .cse8)))) [2023-12-02 14:17:22,498 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 666 677) no Hoare annotation was computed. [2023-12-02 14:17:22,499 INFO L895 garLoopResultBuilder]: At program point L1018(line 1018) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 1)) (.cse12 (not (= |old(~waterLevel~0)| 1))) (.cse13 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse5 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 1)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~pumpRunning~0 0)) (.cse10 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| ~waterLevel~0)) (.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse11 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse9 (not (= 0 ~systemActive~0)))) (and (let ((.cse0 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~10#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse2) .cse5 .cse6 .cse7)) (or .cse8 .cse4 .cse9) (or .cse8 .cse5 (and .cse4 .cse10 .cse11) (< 2 |old(~waterLevel~0)|)) (or .cse8 .cse5 .cse7) (or .cse8 .cse12 .cse1 .cse9) (or (and .cse4 .cse10 .cse11 .cse2) (and .cse10 .cse11 .cse2 .cse3) .cse13 .cse5 (< 0 |old(~waterLevel~0)|) .cse6) (let ((.cse14 (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|)) (and (<= |old(~waterLevel~0)| 0) .cse11)))) (or .cse12 .cse13 .cse5 (and .cse14 .cse10 .cse2 .cse3) .cse6 (and .cse4 .cse14 .cse10 .cse2))) (or .cse8 .cse7 .cse9))) [2023-12-02 14:17:22,499 INFO L895 garLoopResultBuilder]: At program point L857(line 857) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (< 2 |old(~waterLevel~0)|)) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))) (or .cse3 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse2) (or .cse3 (not (= 0 ~systemActive~0))))) [2023-12-02 14:17:22,499 INFO L899 garLoopResultBuilder]: For program point L1018-1(line 1018) no Hoare annotation was computed. [2023-12-02 14:17:22,499 INFO L899 garLoopResultBuilder]: For program point L857-1(lines 838 862) no Hoare annotation was computed. [2023-12-02 14:17:22,499 INFO L899 garLoopResultBuilder]: For program point L758-2(lines 754 776) no Hoare annotation was computed. [2023-12-02 14:17:22,499 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2023-12-02 14:17:22,499 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 854) no Hoare annotation was computed. [2023-12-02 14:17:22,499 INFO L895 garLoopResultBuilder]: At program point L1003(line 1003) the Hoare annotation is: (let ((.cse6 (not (= 0 ~systemActive~0))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse10 (= ~pumpRunning~0 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 (and .cse7 (or .cse8 (= ~waterLevel~0 1)))) (or .cse5 .cse0 .cse1 .cse4 .cse9) (or .cse5 (< |old(~waterLevel~0)| 2) .cse8 .cse6) (or .cse1 .cse2 .cse3 (and (= 2 ~waterLevel~0) .cse10)) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse2 (and .cse8 .cse4 .cse10)) (or .cse5 (and .cse7 .cse8) .cse1 .cse9))) [2023-12-02 14:17:22,499 INFO L899 garLoopResultBuilder]: For program point L1003-1(line 1003) no Hoare annotation was computed. [2023-12-02 14:17:22,499 INFO L899 garLoopResultBuilder]: For program point L842(lines 842 859) no Hoare annotation was computed. [2023-12-02 14:17:22,500 INFO L899 garLoopResultBuilder]: For program point L1020(lines 1020 1030) no Hoare annotation was computed. [2023-12-02 14:17:22,500 INFO L899 garLoopResultBuilder]: For program point L1016(lines 1016 1033) no Hoare annotation was computed. [2023-12-02 14:17:22,500 INFO L899 garLoopResultBuilder]: For program point L1016-1(lines 1008 1036) no Hoare annotation was computed. [2023-12-02 14:17:22,500 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 751 777) the Hoare annotation is: (let ((.cse6 (not (= 0 ~systemActive~0))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse10 (= ~pumpRunning~0 1)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 (and .cse7 (or .cse8 (= ~waterLevel~0 1)))) (or .cse5 .cse0 .cse1 .cse4 .cse9) (or .cse5 (< |old(~waterLevel~0)| 2) .cse8 .cse6) (or .cse1 .cse2 .cse3 (and (= 2 ~waterLevel~0) .cse10)) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse2 (and .cse8 .cse4 .cse10)) (or .cse5 (and .cse7 .cse8) .cse1 .cse9))) [2023-12-02 14:17:22,500 INFO L899 garLoopResultBuilder]: For program point L1021(lines 1021 1027) no Hoare annotation was computed. [2023-12-02 14:17:22,500 INFO L899 garLoopResultBuilder]: For program point L765-1(lines 765 771) no Hoare annotation was computed. [2023-12-02 14:17:22,500 INFO L895 garLoopResultBuilder]: At program point L852(line 852) the Hoare annotation is: (let ((.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse0 (= |timeShift_processEnvironment_~tmp~7#1| 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse8 (< 1 |old(~waterLevel~0)|)) (.cse5 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (= ~pumpRunning~0 1)) (.cse9 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse3 (and (= ~waterLevel~0 1) .cse5 .cse6) .cse4) (or .cse7 .cse1 (< 2 |old(~waterLevel~0)|)) (or .cse8 .cse0 .cse9 .cse1 .cse2 .cse3) (or .cse8 (and (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) (<= ~waterLevel~0 0) .cse5 .cse6) .cse9 .cse1 .cse3) (or .cse7 (not (= 0 ~systemActive~0))))) [2023-12-02 14:17:22,500 INFO L895 garLoopResultBuilder]: At program point L848(line 848) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (= |old(~pumpRunning~0)| 0)))) (and (or (< 1 |old(~waterLevel~0)|) (< |old(~switchedOnBeforeTS~0)| 1) .cse0 .cse1 (and (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= 1 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2 (<= ~waterLevel~0 0) .cse3 .cse4)) (or .cse5 .cse0 (< 2 |old(~waterLevel~0)|)) (or (and .cse2 (= ~waterLevel~0 1) .cse3 .cse4) .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))) (or .cse5 (not (= 0 ~systemActive~0))))) [2023-12-02 14:17:22,501 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 751 777) no Hoare annotation was computed. [2023-12-02 14:17:22,501 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 561) no Hoare annotation was computed. [2023-12-02 14:17:22,501 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 418 447) no Hoare annotation was computed. [2023-12-02 14:17:22,501 INFO L899 garLoopResultBuilder]: For program point L443(lines 418 447) no Hoare annotation was computed. [2023-12-02 14:17:22,501 INFO L899 garLoopResultBuilder]: For program point L439(line 439) no Hoare annotation was computed. [2023-12-02 14:17:22,501 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 436) no Hoare annotation was computed. [2023-12-02 14:17:22,501 INFO L902 garLoopResultBuilder]: At program point L432-1(lines 432 436) the Hoare annotation is: true [2023-12-02 14:17:22,501 INFO L902 garLoopResultBuilder]: At program point L428-2(lines 428 442) the Hoare annotation is: true [2023-12-02 14:17:22,501 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 418 447) the Hoare annotation is: true [2023-12-02 14:17:22,501 INFO L902 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: true [2023-12-02 14:17:22,502 INFO L899 garLoopResultBuilder]: For program point L424-1(line 424) no Hoare annotation was computed. [2023-12-02 14:17:22,502 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 603) no Hoare annotation was computed. [2023-12-02 14:17:22,502 INFO L899 garLoopResultBuilder]: For program point L597-1(lines 597 603) no Hoare annotation was computed. [2023-12-02 14:17:22,502 INFO L899 garLoopResultBuilder]: For program point L977(lines 977 983) no Hoare annotation was computed. [2023-12-02 14:17:22,502 INFO L899 garLoopResultBuilder]: For program point L977-1(lines 977 983) no Hoare annotation was computed. [2023-12-02 14:17:22,502 INFO L895 garLoopResultBuilder]: At program point L622(lines 577 624) the Hoare annotation is: (let ((.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse5 (= 2 ~waterLevel~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) .cse2 .cse3) (and .cse0 .cse1 (<= ~waterLevel~0 0) .cse2 .cse3) (and .cse4 .cse5 .cse0 .cse1) (and .cse4 .cse1 (= 0 ~systemActive~0)) (and .cse5 .cse0 .cse1 .cse3) (and .cse4 (<= ~waterLevel~0 1) .cse0 .cse1))) [2023-12-02 14:17:22,502 INFO L895 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: (let ((.cse2 (<= 1 ~switchedOnBeforeTS~0)) (.cse5 (= 2 ~waterLevel~0)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) .cse2 .cse3) (and .cse0 .cse1 (<= ~waterLevel~0 0) .cse2 .cse3) (and .cse4 .cse5 .cse0 .cse1) (and .cse4 .cse1 (= 0 ~systemActive~0)) (and .cse5 .cse0 .cse1 .cse3) (and .cse4 (<= ~waterLevel~0 1) .cse0 .cse1))) [2023-12-02 14:17:22,502 INFO L899 garLoopResultBuilder]: For program point L578(lines 577 624) no Hoare annotation was computed. [2023-12-02 14:17:22,502 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 14:17:22,502 INFO L899 garLoopResultBuilder]: For program point L607(lines 607 620) no Hoare annotation was computed. [2023-12-02 14:17:22,503 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 515) no Hoare annotation was computed. [2023-12-02 14:17:22,503 INFO L899 garLoopResultBuilder]: For program point L508-2(lines 508 515) no Hoare annotation was computed. [2023-12-02 14:17:22,503 INFO L895 garLoopResultBuilder]: At program point L599(line 599) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and (<= ~waterLevel~0 1) .cse2 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse3) (and .cse0 .cse2 .cse1 (<= ~waterLevel~0 2)) (and (= 2 ~waterLevel~0) .cse2 .cse1 .cse3))) [2023-12-02 14:17:22,503 INFO L899 garLoopResultBuilder]: For program point L628(lines 567 632) no Hoare annotation was computed. [2023-12-02 14:17:22,503 INFO L895 garLoopResultBuilder]: At program point L979(line 979) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (<= 2 ~waterLevel~0) .cse0 (not (= 0 ~systemActive~0))))) [2023-12-02 14:17:22,503 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2023-12-02 14:17:22,503 INFO L899 garLoopResultBuilder]: For program point L587-1(lines 587 593) no Hoare annotation was computed. [2023-12-02 14:17:22,503 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 14:17:22,503 INFO L895 garLoopResultBuilder]: At program point L625(lines 576 626) the Hoare annotation is: false [2023-12-02 14:17:22,503 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 619) no Hoare annotation was computed. [2023-12-02 14:17:22,504 INFO L895 garLoopResultBuilder]: At program point L613-2(lines 607 620) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and (<= ~waterLevel~0 1) .cse2 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse3) (and .cse0 .cse2 .cse1 (<= ~waterLevel~0 2)) (and (= 2 ~waterLevel~0) .cse2 .cse1 .cse3))) [2023-12-02 14:17:22,504 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 786 810) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< ~switchedOnBeforeTS~0 1)) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0)) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse2 .cse3 .cse4 .cse5) (or .cse2 (< 0 ~waterLevel~0) .cse3 .cse4 .cse5))) [2023-12-02 14:17:22,504 INFO L895 garLoopResultBuilder]: At program point L800(line 800) the Hoare annotation is: (let ((.cse1 (< ~switchedOnBeforeTS~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< 0 ~waterLevel~0) .cse1 .cse2) (or .cse3 .cse0 (and .cse4 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0)) (< 1 ~waterLevel~0)) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 (not (= 2 ~waterLevel~0))))) [2023-12-02 14:17:22,504 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 786 810) no Hoare annotation was computed. [2023-12-02 14:17:22,504 INFO L899 garLoopResultBuilder]: For program point L794(lines 794 802) no Hoare annotation was computed. [2023-12-02 14:17:22,504 INFO L899 garLoopResultBuilder]: For program point L790(lines 790 807) no Hoare annotation was computed. [2023-12-02 14:17:22,504 INFO L895 garLoopResultBuilder]: At program point L805(line 805) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (< ~switchedOnBeforeTS~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0))) (or .cse0 .cse1 (< 1 ~waterLevel~0)) (or (not (= ~waterLevel~0 1)) .cse1 .cse2 .cse3 .cse4) (or .cse1 (< 0 ~waterLevel~0) .cse2 .cse3 .cse4))) [2023-12-02 14:17:22,504 INFO L899 garLoopResultBuilder]: For program point L805-1(lines 786 810) no Hoare annotation was computed. [2023-12-02 14:17:22,505 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 654 665) no Hoare annotation was computed. [2023-12-02 14:17:22,505 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 654 665) the Hoare annotation is: (let ((.cse4 (< ~switchedOnBeforeTS~0 1)) (.cse6 (= ~waterLevel~0 1)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~pumpRunning~0 1))) (.cse3 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (= |old(~waterLevel~0)| 1)) .cse2 .cse4 .cse5 .cse6) (or .cse2 (< 0 |old(~waterLevel~0)|) .cse4 .cse5 .cse7) (or .cse0 .cse7 .cse6 (not (= 0 ~systemActive~0))) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse2 .cse7) (or .cse1 .cse2 .cse5 .cse3))) [2023-12-02 14:17:22,505 INFO L895 garLoopResultBuilder]: At program point L826(line 826) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (< ~switchedOnBeforeTS~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0))) (or .cse0 .cse1 (< 1 ~waterLevel~0)) (or (not (= ~waterLevel~0 1)) .cse1 .cse2 .cse3 .cse4) (or .cse1 (< 0 ~waterLevel~0) .cse2 .cse3 .cse4))) [2023-12-02 14:17:22,505 INFO L895 garLoopResultBuilder]: At program point L822(line 822) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (< ~switchedOnBeforeTS~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0))) (or .cse0 .cse1 (< 1 ~waterLevel~0)) (or (not (= ~waterLevel~0 1)) .cse1 .cse2 .cse3 .cse4) (or .cse1 (< 0 ~waterLevel~0) .cse2 .cse3 .cse4))) [2023-12-02 14:17:22,505 INFO L899 garLoopResultBuilder]: For program point L820(lines 820 828) no Hoare annotation was computed. [2023-12-02 14:17:22,505 INFO L899 garLoopResultBuilder]: For program point L816(lines 816 833) no Hoare annotation was computed. [2023-12-02 14:17:22,505 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 812 836) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< ~switchedOnBeforeTS~0 1)) (.cse4 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (= ~pumpRunning~0 1))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0)) (or .cse0 .cse1 .cse2 (not (= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse2 .cse3 .cse4 .cse5) (or .cse2 (< 0 ~waterLevel~0) .cse3 .cse4 .cse5))) [2023-12-02 14:17:22,506 INFO L895 garLoopResultBuilder]: At program point L831(line 831) the Hoare annotation is: (let ((.cse1 (< ~switchedOnBeforeTS~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< 0 ~waterLevel~0) .cse1 .cse2) (or .cse3 .cse4 .cse0 (< 1 ~waterLevel~0)) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 (not (= 2 ~waterLevel~0))))) [2023-12-02 14:17:22,506 INFO L899 garLoopResultBuilder]: For program point L831-1(lines 812 836) no Hoare annotation was computed. [2023-12-02 14:17:22,506 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 812 836) no Hoare annotation was computed. [2023-12-02 14:17:22,506 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 890 898) no Hoare annotation was computed. [2023-12-02 14:17:22,506 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 890 898) the Hoare annotation is: true [2023-12-02 14:17:22,508 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:17:22,510 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 14:17:22,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:17:22 BoogieIcfgContainer [2023-12-02 14:17:22,522 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 14:17:22,522 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 14:17:22,522 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 14:17:22,522 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 14:17:22,523 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:16:43" (3/4) ... [2023-12-02 14:17:22,525 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 14:17:22,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2023-12-02 14:17:22,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-12-02 14:17:22,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-12-02 14:17:22,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-12-02 14:17:22,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-12-02 14:17:22,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-12-02 14:17:22,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-12-02 14:17:22,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2023-12-02 14:17:22,529 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-12-02 14:17:22,537 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2023-12-02 14:17:22,538 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-12-02 14:17:22,538 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 14:17:22,539 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 14:17:22,540 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 14:17:22,640 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 14:17:22,641 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 14:17:22,641 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 14:17:22,642 INFO L158 Benchmark]: Toolchain (without parser) took 40384.50ms. Allocated memory was 144.7MB in the beginning and 778.0MB in the end (delta: 633.3MB). Free memory was 110.0MB in the beginning and 380.0MB in the end (delta: -269.9MB). Peak memory consumption was 363.1MB. Max. memory is 16.1GB. [2023-12-02 14:17:22,642 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 14:17:22,642 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.39ms. Allocated memory is still 144.7MB. Free memory was 110.0MB in the beginning and 90.3MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-12-02 14:17:22,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.99ms. Allocated memory is still 144.7MB. Free memory was 89.7MB in the beginning and 87.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:17:22,643 INFO L158 Benchmark]: Boogie Preprocessor took 29.95ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 86.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 14:17:22,643 INFO L158 Benchmark]: RCFGBuilder took 545.36ms. Allocated memory is still 144.7MB. Free memory was 86.1MB in the beginning and 93.9MB in the end (delta: -7.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 14:17:22,643 INFO L158 Benchmark]: TraceAbstraction took 39221.90ms. Allocated memory was 144.7MB in the beginning and 778.0MB in the end (delta: 633.3MB). Free memory was 93.9MB in the beginning and 388.4MB in the end (delta: -294.5MB). Peak memory consumption was 453.8MB. Max. memory is 16.1GB. [2023-12-02 14:17:22,644 INFO L158 Benchmark]: Witness Printer took 118.81ms. Allocated memory is still 778.0MB. Free memory was 388.4MB in the beginning and 380.0MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-12-02 14:17:22,645 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 113.2MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.39ms. Allocated memory is still 144.7MB. Free memory was 110.0MB in the beginning and 90.3MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.99ms. Allocated memory is still 144.7MB. Free memory was 89.7MB in the beginning and 87.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.95ms. Allocated memory is still 144.7MB. Free memory was 87.6MB in the beginning and 86.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 545.36ms. Allocated memory is still 144.7MB. Free memory was 86.1MB in the beginning and 93.9MB in the end (delta: -7.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 39221.90ms. Allocated memory was 144.7MB in the beginning and 778.0MB in the end (delta: 633.3MB). Free memory was 93.9MB in the beginning and 388.4MB in the end (delta: -294.5MB). Peak memory consumption was 453.8MB. Max. memory is 16.1GB. * Witness Printer took 118.81ms. Allocated memory is still 778.0MB. Free memory was 388.4MB in the beginning and 380.0MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] - GenericResultAtLocation [Line: 521]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [521] - GenericResultAtLocation [Line: 556]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [556] - GenericResultAtLocation [Line: 565]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [565] - GenericResultAtLocation [Line: 633]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [633] - GenericResultAtLocation [Line: 742]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [742] - GenericResultAtLocation [Line: 988]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [988] * 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: 561]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 39.2s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2586 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2568 mSDsluCounter, 4155 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3162 mSDsCounter, 1449 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4837 IncrementalHoareTripleChecker+Invalid, 6286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1449 mSolverCounterUnsat, 993 mSDtfsCounter, 4837 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1044 GetRequests, 737 SyntacticMatches, 20 SemanticMatches, 287 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9262 ImplicationChecksByTransitivity, 12.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=766occurred in iteration=10, InterpolantAutomatonStates: 144, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 251 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 1494 PreInvPairs, 1670 NumberOfFragments, 1834 HoareAnnotationTreeSize, 1494 FomulaSimplifications, 15877 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 28 FomulaSimplificationsInter, 20227 FormulaSimplificationTreeSizeReductionInter, 5.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 884 NumberOfCodeBlocks, 884 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1140 ConstructedInterpolants, 0 QuantifiedInterpolants, 3286 SizeOfPredicates, 20 NumberOfNonLiveVariables, 1041 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 17 InterpolantComputations, 8 PerfectInterpolantSequences, 536/683 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: 576]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 428]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: ((((((((((1 == systemActive) && (splverifierCounter == 0)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((((1 == systemActive) && (splverifierCounter == 0)) && (waterLevel <= 0)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (0 == systemActive))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) RESULT: Ultimate proved your program to be correct! [2023-12-02 14:17:22,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_722287dc-6cc5-4854-a836-3a9941794599/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE