./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ --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 e8a2709147afbb012c6cccd417fa49b368030a0529ed1a30816506b77e415ad7 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:55:34,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:55:34,151 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:55:34,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:55:34,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:55:34,214 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:55:34,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:55:34,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:55:34,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:55:34,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:55:34,224 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:55:34,225 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:55:34,225 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:55:34,227 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:55:34,227 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:55:34,228 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:55:34,228 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:55:34,228 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:55:34,229 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:55:34,230 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:55:34,231 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:55:34,231 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:55:34,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:55:34,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:55:34,233 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:55:34,252 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:55:34,252 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:55:34,253 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:55:34,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:55:34,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:55:34,255 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:55:34,255 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:55:34,255 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:55:34,255 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:55:34,256 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:55:34,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:55:34,256 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:55:34,256 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:55:34,257 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:55:34,257 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:55:34,257 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:55:34,257 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:55:34,258 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:55:34,258 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:55:34,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:55:34,259 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_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8a2709147afbb012c6cccd417fa49b368030a0529ed1a30816506b77e415ad7 [2023-11-19 04:55:34,564 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:55:34,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:55:34,602 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:55:34,604 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:55:34,605 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:55:34,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2023-11-19 04:55:37,805 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:55:38,085 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:55:38,085 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c [2023-11-19 04:55:38,108 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/data/abf6f5f00/b78fbef7876249849199e4435219e993/FLAG115813cb9 [2023-11-19 04:55:38,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/data/abf6f5f00/b78fbef7876249849199e4435219e993 [2023-11-19 04:55:38,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:55:38,129 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:55:38,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:38,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:55:38,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:55:38,137 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c9a2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38, skipping insertion in model container [2023-11-19 04:55:38,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,192 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:55:38,506 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_fccdf812-d911-4884-a667-ea79b0200122/sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c[17441,17454] [2023-11-19 04:55:38,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:55:38,528 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:55:38,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-19 04:55:38,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [145] [2023-11-19 04:55:38,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [247] [2023-11-19 04:55:38,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [613] [2023-11-19 04:55:38,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [681] [2023-11-19 04:55:38,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [888] [2023-11-19 04:55:38,543 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [897] [2023-11-19 04:55:38,543 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [932] [2023-11-19 04:55:38,597 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_fccdf812-d911-4884-a667-ea79b0200122/sv-benchmarks/c/product-lines/minepump_spec3_product30.cil.c[17441,17454] [2023-11-19 04:55:38,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:55:38,622 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:55:38,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38 WrapperNode [2023-11-19 04:55:38,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:38,624 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:55:38,624 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:55:38,624 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:55:38,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,674 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 184 [2023-11-19 04:55:38,675 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:55:38,676 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:55:38,676 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:55:38,676 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:55:38,686 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,689 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,689 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,695 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,704 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:55:38,708 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:55:38,708 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:55:38,708 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:55:38,709 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (1/1) ... [2023-11-19 04:55:38,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:55:38,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:55:38,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:55:38,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:55:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:55:38,800 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 04:55:38,800 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 04:55:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 04:55:38,801 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 04:55:38,801 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 04:55:38,801 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 04:55:38,802 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 04:55:38,802 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 04:55:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 04:55:38,803 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 04:55:38,803 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-11-19 04:55:38,804 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-11-19 04:55:38,804 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-11-19 04:55:38,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-11-19 04:55:38,805 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-11-19 04:55:38,806 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-11-19 04:55:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:55:38,806 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 04:55:38,807 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 04:55:38,809 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:55:38,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:55:38,933 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:55:38,936 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:55:39,225 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:55:39,384 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:55:39,387 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:55:39,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:39 BoogieIcfgContainer [2023-11-19 04:55:39,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:55:39,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:55:39,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:55:39,410 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:55:39,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:55:38" (1/3) ... [2023-11-19 04:55:39,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7ba4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:39, skipping insertion in model container [2023-11-19 04:55:39,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:38" (2/3) ... [2023-11-19 04:55:39,412 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e7ba4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:55:39, skipping insertion in model container [2023-11-19 04:55:39,413 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:39" (3/3) ... [2023-11-19 04:55:39,415 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2023-11-19 04:55:39,434 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:55:39,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:55:39,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:55:39,513 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;@5acc8c91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:55:39,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:55:39,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2023-11-19 04:55:39,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 04:55:39,526 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:39,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:55:39,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:39,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:39,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1891106060, now seen corresponding path program 1 times [2023-11-19 04:55:39,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:39,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83338168] [2023-11-19 04:55:39,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:39,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:55:39,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:55:39,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83338168] [2023-11-19 04:55:39,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83338168] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:39,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:39,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:55:39,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514882318] [2023-11-19 04:55:39,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:39,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:55:39,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:55:39,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:55:39,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:55:39,768 INFO L87 Difference]: Start difference. First operand has 66 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:55:39,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:39,876 INFO L93 Difference]: Finished difference Result 130 states and 173 transitions. [2023-11-19 04:55:39,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:55:39,879 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-19 04:55:39,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:39,889 INFO L225 Difference]: With dead ends: 130 [2023-11-19 04:55:39,889 INFO L226 Difference]: Without dead ends: 61 [2023-11-19 04:55:39,893 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 [2023-11-19 04:55:39,897 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:39,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:55:39,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-11-19 04:55:39,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-11-19 04:55:39,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 15 states have call successors, (15), 9 states have call predecessors, (15), 8 states have return successors, (14), 10 states have call predecessors, (14), 14 states have call successors, (14) [2023-11-19 04:55:39,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2023-11-19 04:55:39,962 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 17 [2023-11-19 04:55:39,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:39,963 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2023-11-19 04:55:39,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:55:39,965 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2023-11-19 04:55:39,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 04:55:39,969 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:39,970 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:55:39,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:55:39,970 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:39,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:39,973 INFO L85 PathProgramCache]: Analyzing trace with hash 875935234, now seen corresponding path program 1 times [2023-11-19 04:55:39,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:39,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277159273] [2023-11-19 04:55:39,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:39,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:40,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:55:40,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:55:40,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277159273] [2023-11-19 04:55:40,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277159273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:40,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:40,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:55:40,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214253794] [2023-11-19 04:55:40,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:40,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:55:40,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:55:40,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:55:40,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:40,162 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:55:40,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:40,222 INFO L93 Difference]: Finished difference Result 99 states and 125 transitions. [2023-11-19 04:55:40,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:55:40,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-19 04:55:40,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:40,225 INFO L225 Difference]: With dead ends: 99 [2023-11-19 04:55:40,225 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 04:55:40,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:40,230 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 7 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:40,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 95 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:55:40,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 04:55:40,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-11-19 04:55:40,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 32 states have (on average 1.3125) internal successors, (42), 39 states have internal predecessors, (42), 12 states have call successors, (12), 8 states have call predecessors, (12), 8 states have return successors, (12), 8 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-19 04:55:40,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 66 transitions. [2023-11-19 04:55:40,249 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 66 transitions. Word has length 18 [2023-11-19 04:55:40,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:40,249 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 66 transitions. [2023-11-19 04:55:40,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:55:40,250 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2023-11-19 04:55:40,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:55:40,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:40,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:55:40,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:55:40,254 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:40,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:40,256 INFO L85 PathProgramCache]: Analyzing trace with hash 681037019, now seen corresponding path program 1 times [2023-11-19 04:55:40,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:40,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818588716] [2023-11-19 04:55:40,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:40,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:40,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:55:40,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:55:40,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818588716] [2023-11-19 04:55:40,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818588716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:40,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:40,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 04:55:40,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166683454] [2023-11-19 04:55:40,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:40,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 04:55:40,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:55:40,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 04:55:40,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 04:55:40,548 INFO L87 Difference]: Start difference. First operand 53 states and 66 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:55:40,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:40,698 INFO L93 Difference]: Finished difference Result 138 states and 174 transitions. [2023-11-19 04:55:40,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 04:55:40,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-11-19 04:55:40,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:40,705 INFO L225 Difference]: With dead ends: 138 [2023-11-19 04:55:40,705 INFO L226 Difference]: Without dead ends: 87 [2023-11-19 04:55:40,706 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 [2023-11-19 04:55:40,707 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 44 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:40,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 149 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:55:40,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-19 04:55:40,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2023-11-19 04:55:40,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 61 states have internal predecessors, (67), 17 states have call successors, (17), 13 states have call predecessors, (17), 13 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:55:40,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2023-11-19 04:55:40,747 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 20 [2023-11-19 04:55:40,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:40,748 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2023-11-19 04:55:40,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:55:40,748 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2023-11-19 04:55:40,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 04:55:40,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:40,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:55:40,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:55:40,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:40,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:40,752 INFO L85 PathProgramCache]: Analyzing trace with hash 840544846, now seen corresponding path program 1 times [2023-11-19 04:55:40,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:40,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930055355] [2023-11-19 04:55:40,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:40,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:55:40,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:55:40,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:55:40,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930055355] [2023-11-19 04:55:40,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930055355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:55:40,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:55:40,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:55:40,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273146321] [2023-11-19 04:55:40,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:55:40,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:55:40,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:55:40,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:55:40,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:40,943 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (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) [2023-11-19 04:55:41,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:55:41,020 INFO L93 Difference]: Finished difference Result 166 states and 202 transitions. [2023-11-19 04:55:41,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:55:41,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (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 23 [2023-11-19 04:55:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:55:41,025 INFO L225 Difference]: With dead ends: 166 [2023-11-19 04:55:41,026 INFO L226 Difference]: Without dead ends: 84 [2023-11-19 04:55:41,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:55:41,031 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 54 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:55:41,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 50 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:55:41,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-11-19 04:55:41,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-11-19 04:55:41,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 61 states have internal predecessors, (65), 17 states have call successors, (17), 13 states have call predecessors, (17), 13 states have return successors, (17), 13 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 04:55:41,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 99 transitions. [2023-11-19 04:55:41,066 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 99 transitions. Word has length 23 [2023-11-19 04:55:41,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:55:41,067 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 99 transitions. [2023-11-19 04:55:41,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (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) [2023-11-19 04:55:41,068 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 99 transitions. [2023-11-19 04:55:41,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 04:55:41,078 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:55:41,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:55:41,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:55:41,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:55:41,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:55:41,080 INFO L85 PathProgramCache]: Analyzing trace with hash -557164416, now seen corresponding path program 1 times [2023-11-19 04:55:41,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:55:41,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590721491] [2023-11-19 04:55:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:55:41,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:55:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:55:41,120 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:55:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:55:41,192 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:55:41,193 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:55:41,195 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 04:55:41,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:55:41,206 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 04:55:41,211 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:55:41,269 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated [2023-11-19 04:55:41,280 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret51 could not be translated [2023-11-19 04:55:41,301 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:55:41 BoogieIcfgContainer [2023-11-19 04:55:41,301 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:55:41,302 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:55:41,302 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:55:41,302 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:55:41,303 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:55:39" (3/4) ... [2023-11-19 04:55:41,304 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:55:41,316 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated [2023-11-19 04:55:41,320 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret51 could not be translated [2023-11-19 04:55:41,401 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:55:41,402 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:55:41,402 INFO L158 Benchmark]: Toolchain (without parser) took 3273.32ms. Allocated memory is still 146.8MB. Free memory was 94.2MB in the beginning and 80.7MB in the end (delta: 13.5MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2023-11-19 04:55:41,403 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:55:41,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.04ms. Allocated memory is still 146.8MB. Free memory was 94.2MB in the beginning and 74.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 04:55:41,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.21ms. Allocated memory is still 146.8MB. Free memory was 74.7MB in the beginning and 72.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:55:41,405 INFO L158 Benchmark]: Boogie Preprocessor took 31.61ms. Allocated memory is still 146.8MB. Free memory was 72.6MB in the beginning and 70.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:55:41,405 INFO L158 Benchmark]: RCFGBuilder took 685.10ms. Allocated memory is still 146.8MB. Free memory was 70.9MB in the beginning and 109.0MB in the end (delta: -38.1MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2023-11-19 04:55:41,406 INFO L158 Benchmark]: TraceAbstraction took 1905.23ms. Allocated memory is still 146.8MB. Free memory was 107.7MB in the beginning and 84.9MB in the end (delta: 22.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-11-19 04:55:41,406 INFO L158 Benchmark]: Witness Printer took 99.97ms. Allocated memory is still 146.8MB. Free memory was 84.9MB in the beginning and 80.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:55:41,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 100.7MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.04ms. Allocated memory is still 146.8MB. Free memory was 94.2MB in the beginning and 74.7MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.21ms. Allocated memory is still 146.8MB. Free memory was 74.7MB in the beginning and 72.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.61ms. Allocated memory is still 146.8MB. Free memory was 72.6MB in the beginning and 70.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 685.10ms. Allocated memory is still 146.8MB. Free memory was 70.9MB in the beginning and 109.0MB in the end (delta: -38.1MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1905.23ms. Allocated memory is still 146.8MB. Free memory was 107.7MB in the beginning and 84.9MB in the end (delta: 22.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * Witness Printer took 99.97ms. Allocated memory is still 146.8MB. Free memory was 84.9MB in the beginning and 80.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 145]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [145] - GenericResultAtLocation [Line: 247]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [247] - GenericResultAtLocation [Line: 613]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [613] - GenericResultAtLocation [Line: 681]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [681] - GenericResultAtLocation [Line: 888]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [888] - GenericResultAtLocation [Line: 897]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [897] - GenericResultAtLocation [Line: 932]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [932] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret51 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret51 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 893]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L146] int cleanupTimeShifts = 4; [L417] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L685] int pumpRunning = 0; [L686] int systemActive = 1; [L225] int retValue_acc ; [L226] int tmp ; [L230] FCALL select_helpers() [L231] FCALL select_features() [L232] CALL, EXPR valid_product() [L924] int retValue_acc ; [L927] retValue_acc = 1 [L928] return (retValue_acc); [L232] RET, EXPR valid_product() [L232] tmp = valid_product() [L234] COND TRUE \read(tmp) [L236] FCALL setup() [L237] CALL runTest() [L216] CALL test() [L616] int splverifierCounter ; [L617] int tmp ; [L618] int tmp___0 ; [L619] int tmp___1 ; [L620] int tmp___2 ; [L623] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L625] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L627] COND TRUE splverifierCounter < 4 [L633] tmp = __VERIFIER_nondet_int() [L635] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L637] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 [L637] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L643] tmp___0 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L653] tmp___2 = __VERIFIER_nondet_int() [L655] COND FALSE !(\read(tmp___2)) [L661] tmp___1 = __VERIFIER_nondet_int() [L663] COND TRUE \read(tmp___1) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=-1, tmp___2=0, waterLevel=2] [L670] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L700] COND TRUE \read(systemActive) [L702] CALL processEnvironment() [L748] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L722] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L725] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L740] FCALL processEnvironment__wrappee__base() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] RET processEnvironment__wrappee__methaneQuery() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] RET processEnvironment() [L708] CALL __utac_acc__Specification3_spec__1() [L934] int tmp ; [L935] int tmp___0 ; [L936] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L940] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L940] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L940] tmp = isMethaneLevelCritical() [L942] COND FALSE !(\read(tmp)) [L946] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L946] RET, EXPR getWaterLevel() [L946] tmp___0 = getWaterLevel() [L948] COND TRUE tmp___0 == 2 [L950] CALL, EXPR isPumpRunning() [L817] int retValue_acc ; [L820] retValue_acc = pumpRunning [L821] return (retValue_acc); [L950] RET, EXPR isPumpRunning() [L950] tmp___1 = isPumpRunning() [L952] COND FALSE !(\read(tmp___1)) [L956] CALL __automaton_fail() [L893] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 360 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 143 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 106 IncrementalHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 217 mSDtfsCounter, 106 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=3, InterpolantAutomatonStates: 12, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 166 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-19 04:55:41,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccdf812-d911-4884-a667-ea79b0200122/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE