./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/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_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/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_557e65a4-0bbe-4125-be71-2c2fbcf267aa/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 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:39:25,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:39:25,739 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:39:25,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:39:25,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:39:25,771 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:39:25,771 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:39:25,772 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:39:25,773 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:39:25,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:39:25,774 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:39:25,774 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:39:25,775 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:39:25,775 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:39:25,776 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:39:25,776 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:39:25,777 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:39:25,777 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:39:25,778 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:39:25,778 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:39:25,779 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:39:25,780 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:39:25,781 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:39:25,781 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:39:25,782 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:39:25,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:39:25,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:39:25,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:39:25,783 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:39:25,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:39:25,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:39:25,785 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:39:25,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:39:25,785 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:39:25,786 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:39:25,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:39:25,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:39:25,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:39:25,787 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:39:25,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:39:25,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:39:25,788 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:39:25,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:39:25,788 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:39:25,788 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:39:25,788 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:39:25,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:39:25,789 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_557e65a4-0bbe-4125-be71-2c2fbcf267aa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da [2023-12-02 13:39:26,012 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:39:26,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:39:26,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:39:26,039 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:39:26,039 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:39:26,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2023-12-02 13:39:28,810 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:39:29,002 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:39:29,002 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2023-12-02 13:39:29,017 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/data/8d598e2d2/793dafd69d6a41fb99ac3e075585ffc2/FLAGeef9207f3 [2023-12-02 13:39:29,028 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/data/8d598e2d2/793dafd69d6a41fb99ac3e075585ffc2 [2023-12-02 13:39:29,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:39:29,032 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:39:29,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:39:29,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:39:29,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:39:29,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,039 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57ea3137 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29, skipping insertion in model container [2023-12-02 13:39:29,039 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,082 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:39:29,233 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_557e65a4-0bbe-4125-be71-2c2fbcf267aa/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2023-12-02 13:39:29,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:39:29,323 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:39:29,331 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2023-12-02 13:39:29,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [101] [2023-12-02 13:39:29,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [206] [2023-12-02 13:39:29,332 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [215] [2023-12-02 13:39:29,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [250] [2023-12-02 13:39:29,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [616] [2023-12-02 13:39:29,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [714] [2023-12-02 13:39:29,333 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [782] [2023-12-02 13:39:29,344 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_557e65a4-0bbe-4125-be71-2c2fbcf267aa/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2023-12-02 13:39:29,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:39:29,413 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:39:29,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29 WrapperNode [2023-12-02 13:39:29,414 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:39:29,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:39:29,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:39:29,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:39:29,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,434 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,456 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 201 [2023-12-02 13:39:29,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:39:29,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:39:29,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:39:29,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:39:29,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,472 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,478 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,481 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:39:29,482 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:39:29,482 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:39:29,482 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:39:29,483 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (1/1) ... [2023-12-02 13:39:29,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:39:29,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:39:29,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:39:29,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:39:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:39:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-02 13:39:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-02 13:39:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 13:39:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 13:39:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 13:39:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 13:39:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 13:39:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 13:39:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-12-02 13:39:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-12-02 13:39:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:39:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 13:39:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 13:39:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:39:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:39:29,643 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:39:29,645 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:39:29,899 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:39:30,011 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:39:30,011 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 13:39:30,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:39:30 BoogieIcfgContainer [2023-12-02 13:39:30,013 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:39:30,015 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:39:30,015 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:39:30,018 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:39:30,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:39:29" (1/3) ... [2023-12-02 13:39:30,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e19175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:39:30, skipping insertion in model container [2023-12-02 13:39:30,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:39:29" (2/3) ... [2023-12-02 13:39:30,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37e19175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:39:30, skipping insertion in model container [2023-12-02 13:39:30,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:39:30" (3/3) ... [2023-12-02 13:39:30,021 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2023-12-02 13:39:30,035 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:39:30,035 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:39:30,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:39:30,082 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;@1b9a01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:39:30,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:39:30,085 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-02 13:39:30,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 13:39:30,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:39:30,094 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 13:39:30,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:39:30,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:39:30,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1498463534, now seen corresponding path program 1 times [2023-12-02 13:39:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:39:30,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546233508] [2023-12-02 13:39:30,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:39:30,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:39:30,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:30,276 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 13:39:30,277 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:39:30,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546233508] [2023-12-02 13:39:30,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546233508] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:39:30,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:39:30,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:39:30,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594976780] [2023-12-02 13:39:30,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:39:30,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:39:30,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:39:30,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:39:30,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:39:30,308 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 13:39:30,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:39:30,361 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2023-12-02 13:39:30,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:39:30,364 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 13:39:30,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:39:30,372 INFO L225 Difference]: With dead ends: 100 [2023-12-02 13:39:30,372 INFO L226 Difference]: Without dead ends: 46 [2023-12-02 13:39:30,376 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 13:39:30,379 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:39:30,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:39:30,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-12-02 13:39:30,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-12-02 13:39:30,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-02 13:39:30,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2023-12-02 13:39:30,413 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2023-12-02 13:39:30,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:39:30,414 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2023-12-02 13:39:30,414 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 13:39:30,414 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2023-12-02 13:39:30,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 13:39:30,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:39:30,417 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] [2023-12-02 13:39:30,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:39:30,418 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:39:30,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:39:30,419 INFO L85 PathProgramCache]: Analyzing trace with hash 943925011, now seen corresponding path program 1 times [2023-12-02 13:39:30,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:39:30,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047600889] [2023-12-02 13:39:30,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:39:30,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:39:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:30,650 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 13:39:30,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:39:30,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047600889] [2023-12-02 13:39:30,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047600889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:39:30,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:39:30,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 13:39:30,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223068411] [2023-12-02 13:39:30,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:39:30,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 13:39:30,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:39:30,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 13:39:30,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:39:30,655 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 13:39:31,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:39:31,234 INFO L93 Difference]: Finished difference Result 193 states and 279 transitions. [2023-12-02 13:39:31,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 13:39:31,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 24 [2023-12-02 13:39:31,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:39:31,238 INFO L225 Difference]: With dead ends: 193 [2023-12-02 13:39:31,238 INFO L226 Difference]: Without dead ends: 108 [2023-12-02 13:39:31,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2023-12-02 13:39:31,243 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 114 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:39:31,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 397 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 13:39:31,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-12-02 13:39:31,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 105. [2023-12-02 13:39:31,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 76 states have internal predecessors, (82), 24 states have call successors, (24), 16 states have call predecessors, (24), 13 states have return successors, (39), 19 states have call predecessors, (39), 21 states have call successors, (39) [2023-12-02 13:39:31,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 145 transitions. [2023-12-02 13:39:31,269 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 145 transitions. Word has length 24 [2023-12-02 13:39:31,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:39:31,270 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 145 transitions. [2023-12-02 13:39:31,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 13:39:31,270 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 145 transitions. [2023-12-02 13:39:31,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 13:39:31,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:39:31,272 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] [2023-12-02 13:39:31,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:39:31,273 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:39:31,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:39:31,274 INFO L85 PathProgramCache]: Analyzing trace with hash 267859282, now seen corresponding path program 1 times [2023-12-02 13:39:31,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:39:31,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261951737] [2023-12-02 13:39:31,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:39:31,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:39:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:31,494 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 13:39:31,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:39:31,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261951737] [2023-12-02 13:39:31,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261951737] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:39:31,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:39:31,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 13:39:31,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697612129] [2023-12-02 13:39:31,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:39:31,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:39:31,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:39:31,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:39:31,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:39:31,497 INFO L87 Difference]: Start difference. First operand 105 states and 145 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 13:39:31,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:39:31,587 INFO L93 Difference]: Finished difference Result 266 states and 372 transitions. [2023-12-02 13:39:31,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 13:39:31,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2023-12-02 13:39:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:39:31,591 INFO L225 Difference]: With dead ends: 266 [2023-12-02 13:39:31,591 INFO L226 Difference]: Without dead ends: 152 [2023-12-02 13:39:31,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:39:31,594 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 57 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:39:31,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 123 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:39:31,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-02 13:39:31,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 148. [2023-12-02 13:39:31,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.21875) internal successors, (117), 107 states have internal predecessors, (117), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2023-12-02 13:39:31,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2023-12-02 13:39:31,621 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 27 [2023-12-02 13:39:31,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:39:31,622 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2023-12-02 13:39:31,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 13:39:31,622 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2023-12-02 13:39:31,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 13:39:31,623 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:39:31,624 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] [2023-12-02 13:39:31,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:39:31,624 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:39:31,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:39:31,625 INFO L85 PathProgramCache]: Analyzing trace with hash -914596767, now seen corresponding path program 1 times [2023-12-02 13:39:31,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:39:31,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793866507] [2023-12-02 13:39:31,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:39:31,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:39:31,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:31,899 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 13:39:31,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:39:31,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793866507] [2023-12-02 13:39:31,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793866507] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:39:31,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:39:31,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 13:39:31,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997816886] [2023-12-02 13:39:31,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:39:31,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 13:39:31,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:39:31,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 13:39:31,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:39:31,903 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 13:39:32,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:39:32,354 INFO L93 Difference]: Finished difference Result 396 states and 572 transitions. [2023-12-02 13:39:32,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-02 13:39:32,355 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2023-12-02 13:39:32,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:39:32,358 INFO L225 Difference]: With dead ends: 396 [2023-12-02 13:39:32,358 INFO L226 Difference]: Without dead ends: 152 [2023-12-02 13:39:32,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-12-02 13:39:32,361 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 121 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:39:32,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 377 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:39:32,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-12-02 13:39:32,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 148. [2023-12-02 13:39:32,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.2083333333333333) internal successors, (116), 107 states have internal predecessors, (116), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2023-12-02 13:39:32,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2023-12-02 13:39:32,389 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 30 [2023-12-02 13:39:32,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:39:32,389 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2023-12-02 13:39:32,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 13:39:32,390 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2023-12-02 13:39:32,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 13:39:32,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:39:32,392 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] [2023-12-02 13:39:32,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 13:39:32,392 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:39:32,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:39:32,393 INFO L85 PathProgramCache]: Analyzing trace with hash 337532075, now seen corresponding path program 1 times [2023-12-02 13:39:32,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:39:32,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444315292] [2023-12-02 13:39:32,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:39:32,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:39:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 13:39:32,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:39:32,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444315292] [2023-12-02 13:39:32,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444315292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:39:32,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:39:32,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 13:39:32,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201938411] [2023-12-02 13:39:32,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:39:32,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:39:32,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:39:32,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:39:32,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:39:32,499 INFO L87 Difference]: Start difference. First operand 148 states and 195 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-02 13:39:32,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:39:32,596 INFO L93 Difference]: Finished difference Result 280 states and 383 transitions. [2023-12-02 13:39:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:39:32,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2023-12-02 13:39:32,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:39:32,598 INFO L225 Difference]: With dead ends: 280 [2023-12-02 13:39:32,598 INFO L226 Difference]: Without dead ends: 148 [2023-12-02 13:39:32,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:39:32,601 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 45 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:39:32,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 76 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:39:32,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-02 13:39:32,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2023-12-02 13:39:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.1875) internal successors, (114), 107 states have internal predecessors, (114), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2023-12-02 13:39:32,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 193 transitions. [2023-12-02 13:39:32,625 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 193 transitions. Word has length 47 [2023-12-02 13:39:32,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:39:32,626 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 193 transitions. [2023-12-02 13:39:32,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-02 13:39:32,626 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 193 transitions. [2023-12-02 13:39:32,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 13:39:32,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:39:32,628 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:39:32,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:39:32,629 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:39:32,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:39:32,629 INFO L85 PathProgramCache]: Analyzing trace with hash 463731573, now seen corresponding path program 1 times [2023-12-02 13:39:32,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:39:32,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688499131] [2023-12-02 13:39:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:39:32,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:39:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-02 13:39:32,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:39:32,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688499131] [2023-12-02 13:39:32,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688499131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:39:32,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:39:32,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 13:39:32,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675936449] [2023-12-02 13:39:32,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:39:32,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 13:39:32,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:39:32,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 13:39:32,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:39:32,806 INFO L87 Difference]: Start difference. First operand 148 states and 193 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-12-02 13:39:33,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:39:33,022 INFO L93 Difference]: Finished difference Result 302 states and 423 transitions. [2023-12-02 13:39:33,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 13:39:33,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 53 [2023-12-02 13:39:33,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:39:33,025 INFO L225 Difference]: With dead ends: 302 [2023-12-02 13:39:33,025 INFO L226 Difference]: Without dead ends: 168 [2023-12-02 13:39:33,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2023-12-02 13:39:33,027 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 79 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:39:33,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 126 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:39:33,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-12-02 13:39:33,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 148. [2023-12-02 13:39:33,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.1770833333333333) internal successors, (113), 107 states have internal predecessors, (113), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2023-12-02 13:39:33,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 192 transitions. [2023-12-02 13:39:33,050 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 192 transitions. Word has length 53 [2023-12-02 13:39:33,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:39:33,051 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 192 transitions. [2023-12-02 13:39:33,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-12-02 13:39:33,051 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 192 transitions. [2023-12-02 13:39:33,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 13:39:33,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:39:33,054 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:39:33,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 13:39:33,054 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:39:33,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:39:33,055 INFO L85 PathProgramCache]: Analyzing trace with hash 8985748, now seen corresponding path program 1 times [2023-12-02 13:39:33,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:39:33,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820695789] [2023-12-02 13:39:33,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:39:33,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:39:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:33,460 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 13:39:33,460 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:39:33,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820695789] [2023-12-02 13:39:33,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820695789] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:39:33,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977450279] [2023-12-02 13:39:33,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:39:33,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:39:33,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:39:33,465 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:39:33,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:39:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:39:33,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 13:39:33,572 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:39:34,107 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 13:39:34,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:39:34,649 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-02 13:39:34,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977450279] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:39:34,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1102167978] [2023-12-02 13:39:34,671 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2023-12-02 13:39:34,672 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:39:34,676 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:39:34,681 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:39:34,682 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:39:36,751 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 137 for LOIs [2023-12-02 13:39:36,849 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 44 for LOIs [2023-12-02 13:39:37,438 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 78 for LOIs [2023-12-02 13:39:37,511 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 41 for LOIs [2023-12-02 13:39:37,517 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:39:41,465 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3763#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= |timeShift_isHighWaterLevel_#res#1| 1) (or (= |timeShift_isHighWaterLevel_#res#1| 0) (and (= |timeShift_isMethaneAlarm_#res#1| 0) (= |timeShift_isHighWaterSensorDry_#res#1| 0) (= |timeShift_isMethaneLevelCritical_#res#1| 0) (= ~pumpRunning~0 1))) (<= 0 |timeShift_isHighWaterLevel_#res#1|) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= ~pumpRunning~0 1) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (<= |timeShift_isHighWaterSensorDry_#res#1| 1) (= ~methaneLevelCritical~0 0) (= ~head~0.offset 0) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (= |old(~pumpRunning~0)| 0) (<= 0 (+ ~waterLevel~0 2147483648)) (<= 0 (+ 2147483648 |timeShift_getWaterLevel_#res#1|)) (<= ~waterLevel~0 2147483647) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= ~switchedOnBeforeTS~0 0) (= ~cleanupTimeShifts~0 4) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483648)) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2023-12-02 13:39:41,465 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 13:39:41,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:39:41,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 10] total 24 [2023-12-02 13:39:41,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864896403] [2023-12-02 13:39:41,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:39:41,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 13:39:41,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:39:41,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 13:39:41,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=2060, Unknown=0, NotChecked=0, Total=2352 [2023-12-02 13:39:41,469 INFO L87 Difference]: Start difference. First operand 148 states and 192 transitions. Second operand has 24 states, 22 states have (on average 4.2272727272727275) internal successors, (93), 24 states have internal predecessors, (93), 10 states have call successors, (22), 7 states have call predecessors, (22), 8 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2023-12-02 13:39:42,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:39:42,007 INFO L93 Difference]: Finished difference Result 199 states and 264 transitions. [2023-12-02 13:39:42,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-02 13:39:42,009 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 4.2272727272727275) internal successors, (93), 24 states have internal predecessors, (93), 10 states have call successors, (22), 7 states have call predecessors, (22), 8 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) Word has length 58 [2023-12-02 13:39:42,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:39:42,010 INFO L225 Difference]: With dead ends: 199 [2023-12-02 13:39:42,010 INFO L226 Difference]: Without dead ends: 0 [2023-12-02 13:39:42,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 133 SyntacticMatches, 8 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1192 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=459, Invalid=2963, Unknown=0, NotChecked=0, Total=3422 [2023-12-02 13:39:42,013 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 222 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:39:42,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 231 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:39:42,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-02 13:39:42,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-02 13:39:42,015 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 13:39:42,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-02 13:39:42,015 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2023-12-02 13:39:42,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:39:42,015 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-02 13:39:42,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 4.2272727272727275) internal successors, (93), 24 states have internal predecessors, (93), 10 states have call successors, (22), 7 states have call predecessors, (22), 8 states have return successors, (20), 9 states have call predecessors, (20), 10 states have call successors, (20) [2023-12-02 13:39:42,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-02 13:39:42,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 13:39:42,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:39:42,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:39:42,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-12-02 13:39:42,221 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-02 13:39:43,302 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 815 821) no Hoare annotation was computed. [2023-12-02 13:39:43,302 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 815 821) the Hoare annotation is: true [2023-12-02 13:39:43,302 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 647 658) the Hoare annotation is: true [2023-12-02 13:39:43,303 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 647 658) no Hoare annotation was computed. [2023-12-02 13:39:43,303 INFO L899 garLoopResultBuilder]: For program point L795-2(lines 791 813) no Hoare annotation was computed. [2023-12-02 13:39:43,303 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2023-12-02 13:39:43,303 INFO L895 garLoopResultBuilder]: At program point L837(line 837) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse0 (= |timeShift_processEnvironment_~tmp~6#1| 0)) (.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (not (= |old(~waterLevel~0)| 2)))) (and (or (< 1 |old(~waterLevel~0)|) (and .cse0 (<= ~waterLevel~0 1) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) (= ~switchedOnBeforeTS~0 0)) .cse2) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse3 .cse2) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) .cse3))) [2023-12-02 13:39:43,303 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= 0 ~systemActive~0)) (.cse2 (and (not (= ~switchedOnBeforeTS~0 0)) .cse0))) (and (or (and (= 2 ~waterLevel~0) .cse0) .cse1 .cse2) (or .cse1 .cse2 .cse3) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3 (and (= ~waterLevel~0 1) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 1))) (or (and (<= ~waterLevel~0 1) .cse0) (< 1 |old(~waterLevel~0)|) .cse2) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse2 (= |old(~switchedOnBeforeTS~0)| 0))))) [2023-12-02 13:39:43,303 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2023-12-02 13:39:43,303 INFO L895 garLoopResultBuilder]: At program point L842(line 842) the Hoare annotation is: (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~waterLevel~0)| 2)) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0) .cse0) (or (< 1 |old(~waterLevel~0)|) .cse0))) [2023-12-02 13:39:43,304 INFO L899 garLoopResultBuilder]: For program point L842-1(lines 823 847) no Hoare annotation was computed. [2023-12-02 13:39:43,304 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-12-02 13:39:43,304 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 788 814) the Hoare annotation is: (let ((.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (= ~switchedOnBeforeTS~0 0)) (.cse2 (< 1 |old(~waterLevel~0)|)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (not .cse7)) (.cse6 (= 0 ~systemActive~0))) (and (or (not .cse0) .cse1 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse2 .cse1 .cse3) (or (= 2 ~waterLevel~0) .cse4) (or .cse1 .cse5 .cse4 .cse6 .cse0) (or .cse2 (<= ~waterLevel~0 1)) (or .cse1 (and .cse7 .cse4) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)) (or .cse5 (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1)) .cse6)))) [2023-12-02 13:39:43,304 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (= ~switchedOnBeforeTS~0 0)) (.cse2 (< 1 |old(~waterLevel~0)|)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse5 (not .cse7)) (.cse6 (= 0 ~systemActive~0))) (and (or (not .cse0) .cse1 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse2 .cse1 .cse3) (or (= 2 ~waterLevel~0) .cse4) (or .cse1 .cse5 .cse4 .cse6 .cse0) (or .cse2 (<= ~waterLevel~0 1)) (or .cse1 (and .cse7 .cse4) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)) (or .cse5 (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1)) .cse6)))) [2023-12-02 13:39:43,304 INFO L899 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2023-12-02 13:39:43,304 INFO L899 garLoopResultBuilder]: For program point L802-1(lines 802 808) no Hoare annotation was computed. [2023-12-02 13:39:43,304 INFO L899 garLoopResultBuilder]: For program point L831(lines 831 839) no Hoare annotation was computed. [2023-12-02 13:39:43,305 INFO L899 garLoopResultBuilder]: For program point L827(lines 827 844) no Hoare annotation was computed. [2023-12-02 13:39:43,305 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2023-12-02 13:39:43,305 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2023-12-02 13:39:43,305 INFO L899 garLoopResultBuilder]: For program point L80-1(lines 72 100) no Hoare annotation was computed. [2023-12-02 13:39:43,305 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 788 814) no Hoare annotation was computed. [2023-12-02 13:39:43,305 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 211) no Hoare annotation was computed. [2023-12-02 13:39:43,305 INFO L899 garLoopResultBuilder]: For program point L129(lines 104 133) no Hoare annotation was computed. [2023-12-02 13:39:43,305 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 104 133) no Hoare annotation was computed. [2023-12-02 13:39:43,305 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2023-12-02 13:39:43,306 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 122) no Hoare annotation was computed. [2023-12-02 13:39:43,306 INFO L895 garLoopResultBuilder]: At program point L118-1(lines 118 122) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (= 2 ~waterLevel~0) (not (= |old(~waterLevel~0)| 2)) .cse0) (or (and (<= ~waterLevel~0 1) .cse1) (< 1 |old(~waterLevel~0)|) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2023-12-02 13:39:43,306 INFO L895 garLoopResultBuilder]: At program point L114-2(lines 114 128) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (= 2 ~waterLevel~0) (not (= |old(~waterLevel~0)| 2)) .cse0) (or (and (<= ~waterLevel~0 1) .cse1) (< 1 |old(~waterLevel~0)|) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2023-12-02 13:39:43,306 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (let ((.cse1 (< 1 |old(~waterLevel~0)|)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 .cse0 .cse2) (or (= 2 ~waterLevel~0) .cse3) (or .cse1 (<= ~waterLevel~0 1)) (or .cse0 (and (= |old(~pumpRunning~0)| 0) .cse3) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse2)))) [2023-12-02 13:39:43,306 INFO L899 garLoopResultBuilder]: For program point L110-1(line 110) no Hoare annotation was computed. [2023-12-02 13:39:43,306 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 104 133) the Hoare annotation is: (let ((.cse1 (< 1 |old(~waterLevel~0)|)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 .cse0 .cse2) (or (= 2 ~waterLevel~0) .cse3) (or .cse1 (<= ~waterLevel~0 1)) (or .cse0 (and (= |old(~pumpRunning~0)| 0) .cse3) (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse2)))) [2023-12-02 13:39:43,306 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 752) no Hoare annotation was computed. [2023-12-02 13:39:43,307 INFO L899 garLoopResultBuilder]: For program point L746-1(lines 746 752) no Hoare annotation was computed. [2023-12-02 13:39:43,307 INFO L895 garLoopResultBuilder]: At program point L771(lines 726 773) the Hoare annotation is: (or (= 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) [2023-12-02 13:39:43,307 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (or (= 2 ~waterLevel~0) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (= ~waterLevel~0 1)) [2023-12-02 13:39:43,307 INFO L899 garLoopResultBuilder]: For program point L193(lines 193 200) no Hoare annotation was computed. [2023-12-02 13:39:43,307 INFO L899 garLoopResultBuilder]: For program point L193-2(lines 193 200) no Hoare annotation was computed. [2023-12-02 13:39:43,307 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-02 13:39:43,307 INFO L895 garLoopResultBuilder]: At program point L764-2(lines 756 769) the Hoare annotation is: (or (= 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) [2023-12-02 13:39:43,307 INFO L899 garLoopResultBuilder]: For program point L727(lines 726 773) no Hoare annotation was computed. [2023-12-02 13:39:43,308 INFO L895 garLoopResultBuilder]: At program point L748(line 748) the Hoare annotation is: (or (= 2 ~waterLevel~0) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) [2023-12-02 13:39:43,308 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-02 13:39:43,308 INFO L899 garLoopResultBuilder]: For program point L777(lines 716 781) no Hoare annotation was computed. [2023-12-02 13:39:43,308 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 742) no Hoare annotation was computed. [2023-12-02 13:39:43,308 INFO L899 garLoopResultBuilder]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2023-12-02 13:39:43,308 INFO L895 garLoopResultBuilder]: At program point L774(lines 725 775) the Hoare annotation is: (or (= 2 ~waterLevel~0) (< ~waterLevel~0 2) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) [2023-12-02 13:39:43,308 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 635 646) no Hoare annotation was computed. [2023-12-02 13:39:43,308 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 635 646) the Hoare annotation is: (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (= 2 ~waterLevel~0) (not (= |old(~waterLevel~0)| 2))) (or (= ~pumpRunning~0 0) (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (= |old(~waterLevel~0)| ~waterLevel~0))) [2023-12-02 13:39:43,308 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 893 901) no Hoare annotation was computed. [2023-12-02 13:39:43,309 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 893 901) the Hoare annotation is: true [2023-12-02 13:39:43,311 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:39:43,313 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:39:43,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:39:43 BoogieIcfgContainer [2023-12-02 13:39:43,323 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:39:43,324 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:39:43,324 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:39:43,324 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:39:43,324 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:39:30" (3/4) ... [2023-12-02 13:39:43,326 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 13:39:43,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-12-02 13:39:43,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-12-02 13:39:43,329 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-12-02 13:39:43,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-12-02 13:39:43,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-12-02 13:39:43,330 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-12-02 13:39:43,337 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2023-12-02 13:39:43,338 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-12-02 13:39:43,338 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 13:39:43,339 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 13:39:43,340 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 13:39:43,364 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 == waterLevel) || !((\old(waterLevel) == 2))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) && ((((waterLevel <= 1) && (pumpRunning == switchedOnBeforeTS)) || (1 < \old(waterLevel))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS)))) && ((!((\old(switchedOnBeforeTS) == \old(pumpRunning))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) || (\old(switchedOnBeforeTS) == 0))) [2023-12-02 13:39:43,397 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 == waterLevel) || !((\old(waterLevel) == 2))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) && ((((waterLevel <= 1) && (pumpRunning == switchedOnBeforeTS)) || (1 < \old(waterLevel))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS)))) && ((!((\old(switchedOnBeforeTS) == \old(pumpRunning))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) || (\old(switchedOnBeforeTS) == 0))) [2023-12-02 13:39:43,446 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 13:39:43,446 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/bin/utaipan-verify-nQ1chXbOIh/witness.yml [2023-12-02 13:39:43,446 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:39:43,447 INFO L158 Benchmark]: Toolchain (without parser) took 14415.31ms. Allocated memory was 153.1MB in the beginning and 461.4MB in the end (delta: 308.3MB). Free memory was 116.5MB in the beginning and 168.1MB in the end (delta: -51.6MB). Peak memory consumption was 259.2MB. Max. memory is 16.1GB. [2023-12-02 13:39:43,448 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:39:43,448 INFO L158 Benchmark]: CACSL2BoogieTranslator took 381.40ms. Allocated memory is still 153.1MB. Free memory was 116.5MB in the beginning and 97.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 13:39:43,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.56ms. Allocated memory is still 153.1MB. Free memory was 97.1MB in the beginning and 94.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 13:39:43,449 INFO L158 Benchmark]: Boogie Preprocessor took 23.86ms. Allocated memory is still 153.1MB. Free memory was 94.6MB in the beginning and 93.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:39:43,449 INFO L158 Benchmark]: RCFGBuilder took 531.14ms. Allocated memory is still 153.1MB. Free memory was 93.0MB in the beginning and 108.9MB in the end (delta: -15.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2023-12-02 13:39:43,449 INFO L158 Benchmark]: TraceAbstraction took 13307.92ms. Allocated memory was 153.1MB in the beginning and 461.4MB in the end (delta: 308.3MB). Free memory was 107.7MB in the beginning and 175.5MB in the end (delta: -67.8MB). Peak memory consumption was 239.2MB. Max. memory is 16.1GB. [2023-12-02 13:39:43,450 INFO L158 Benchmark]: Witness Printer took 122.95ms. Allocated memory is still 461.4MB. Free memory was 175.5MB in the beginning and 168.1MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 13:39:43,452 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 109.1MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 381.40ms. Allocated memory is still 153.1MB. Free memory was 116.5MB in the beginning and 97.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.56ms. Allocated memory is still 153.1MB. Free memory was 97.1MB in the beginning and 94.6MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.86ms. Allocated memory is still 153.1MB. Free memory was 94.6MB in the beginning and 93.4MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 531.14ms. Allocated memory is still 153.1MB. Free memory was 93.0MB in the beginning and 108.9MB in the end (delta: -15.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 13307.92ms. Allocated memory was 153.1MB in the beginning and 461.4MB in the end (delta: 308.3MB). Free memory was 107.7MB in the beginning and 175.5MB in the end (delta: -67.8MB). Peak memory consumption was 239.2MB. Max. memory is 16.1GB. * Witness Printer took 122.95ms. Allocated memory is still 461.4MB. Free memory was 175.5MB in the beginning and 168.1MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. 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,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [101] - GenericResultAtLocation [Line: 206]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [206] - GenericResultAtLocation [Line: 215]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [215] - GenericResultAtLocation [Line: 250]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [250] - GenericResultAtLocation [Line: 616]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [616] - GenericResultAtLocation [Line: 714]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [714] - GenericResultAtLocation [Line: 782]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [782] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 211]: 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 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.2s, OverallIterations: 7, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 654 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 638 mSDsluCounter, 1379 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1004 mSDsCounter, 340 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1415 IncrementalHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 340 mSolverCounterUnsat, 375 mSDtfsCounter, 1415 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 273 GetRequests, 155 SyntacticMatches, 8 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1304 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=148occurred in iteration=3, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 31 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 597 PreInvPairs, 802 NumberOfFragments, 758 HoareAnnotationTreeSize, 597 FomulaSimplifications, 590 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 1778 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 318 NumberOfCodeBlocks, 318 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 367 ConstructedInterpolants, 0 QuantifiedInterpolants, 1280 SizeOfPredicates, 12 NumberOfNonLiveVariables, 271 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 114/142 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: 725]: Loop Invariant Derived loop invariant: (((2 == waterLevel) || (waterLevel < 2)) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: (((((2 == waterLevel) || !((\old(waterLevel) == 2))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) && ((((waterLevel <= 1) && (pumpRunning == switchedOnBeforeTS)) || (1 < \old(waterLevel))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS)))) && ((!((\old(switchedOnBeforeTS) == \old(pumpRunning))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) || (\old(switchedOnBeforeTS) == 0))) - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: (((2 == waterLevel) || ((((pumpRunning == 0) && (1 == systemActive)) && (tmp == 1)) && (waterLevel == 1))) || (!((switchedOnBeforeTS == 0)) && (pumpRunning == switchedOnBeforeTS))) RESULT: Ultimate proved your program to be correct! [2023-12-02 13:39:43,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_557e65a4-0bbe-4125-be71-2c2fbcf267aa/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