./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/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_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/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_15559b71-4f69-40a6-a28e-779d2d9cae2f/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 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:52:22,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:52:22,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 18:52:22,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:52:22,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:52:22,667 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:52:22,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:52:22,668 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:52:22,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:52:22,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:52:22,670 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:52:22,670 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:52:22,671 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:52:22,671 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:52:22,672 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:52:22,672 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:52:22,673 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:52:22,673 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:52:22,674 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:52:22,674 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:52:22,675 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:52:22,676 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:52:22,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:52:22,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:52:22,677 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:52:22,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:52:22,678 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:52:22,678 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:52:22,679 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:52:22,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:52:22,680 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:52:22,680 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:52:22,680 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:52:22,681 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:52:22,681 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:52:22,681 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:52:22,682 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:52:22,682 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:52:22,682 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:52:22,682 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:52:22,683 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:52:22,683 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:52:22,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:52:22,683 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:52:22,684 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:52:22,684 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:52:22,684 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:52:22,684 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_15559b71-4f69-40a6-a28e-779d2d9cae2f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 [2023-12-02 18:52:22,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:52:22,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:52:22,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:52:22,932 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:52:22,933 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:52:22,933 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2023-12-02 18:52:25,602 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:52:25,790 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:52:25,790 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2023-12-02 18:52:25,805 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/data/4a9a29db4/be70373839ce474683a87bfe774ab147/FLAGc8e42ba50 [2023-12-02 18:52:25,820 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/data/4a9a29db4/be70373839ce474683a87bfe774ab147 [2023-12-02 18:52:25,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:52:25,824 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:52:25,826 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:52:25,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:52:25,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:52:25,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:25" (1/1) ... [2023-12-02 18:52:25,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@507aae9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:25, skipping insertion in model container [2023-12-02 18:52:25,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:52:25" (1/1) ... [2023-12-02 18:52:25,888 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:52:26,058 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_15559b71-4f69-40a6-a28e-779d2d9cae2f/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2984,2997] [2023-12-02 18:52:26,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:52:26,155 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:52:26,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-12-02 18:52:26,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [145] [2023-12-02 18:52:26,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [154] [2023-12-02 18:52:26,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] [2023-12-02 18:52:26,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [590] [2023-12-02 18:52:26,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [805] [2023-12-02 18:52:26,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [839] [2023-12-02 18:52:26,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [877] [2023-12-02 18:52:26,176 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_15559b71-4f69-40a6-a28e-779d2d9cae2f/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2984,2997] [2023-12-02 18:52:26,225 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:52:26,245 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:52:26,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26 WrapperNode [2023-12-02 18:52:26,245 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:52:26,246 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:52:26,246 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:52:26,247 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:52:26,254 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (1/1) ... [2023-12-02 18:52:26,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (1/1) ... [2023-12-02 18:52:26,295 INFO L138 Inliner]: procedures = 55, calls = 102, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 186 [2023-12-02 18:52:26,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:52:26,296 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:52:26,297 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:52:26,297 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:52:26,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (1/1) ... [2023-12-02 18:52:26,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (1/1) ... [2023-12-02 18:52:26,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (1/1) ... [2023-12-02 18:52:26,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (1/1) ... [2023-12-02 18:52:26,314 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (1/1) ... [2023-12-02 18:52:26,319 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (1/1) ... [2023-12-02 18:52:26,320 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (1/1) ... [2023-12-02 18:52:26,322 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (1/1) ... [2023-12-02 18:52:26,325 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:52:26,326 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:52:26,326 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:52:26,326 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:52:26,327 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (1/1) ... [2023-12-02 18:52:26,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:52:26,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:52:26,361 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:52:26,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:52:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:52:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-02 18:52:26,391 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-02 18:52:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-02 18:52:26,391 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-02 18:52:26,391 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-02 18:52:26,391 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-02 18:52:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-02 18:52:26,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-02 18:52:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-02 18:52:26,392 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-02 18:52:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2023-12-02 18:52:26,392 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2023-12-02 18:52:26,392 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2023-12-02 18:52:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2023-12-02 18:52:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-02 18:52:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-02 18:52:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:52:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-02 18:52:26,393 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-02 18:52:26,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:52:26,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:52:26,464 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:52:26,466 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:52:26,677 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:52:26,767 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:52:26,767 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 18:52:26,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:26 BoogieIcfgContainer [2023-12-02 18:52:26,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:52:26,772 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:52:26,772 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:52:26,776 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:52:26,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:52:25" (1/3) ... [2023-12-02 18:52:26,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ff141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:26, skipping insertion in model container [2023-12-02 18:52:26,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:52:26" (2/3) ... [2023-12-02 18:52:26,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8ff141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:52:26, skipping insertion in model container [2023-12-02 18:52:26,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:26" (3/3) ... [2023-12-02 18:52:26,779 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2023-12-02 18:52:26,798 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:52:26,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:52:26,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:52:26,845 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;@12e9528, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:52:26,845 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:52:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 53 states have internal predecessors, (63), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-02 18:52:26,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 18:52:26,856 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:26,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:26,857 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:26,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:26,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1394529412, now seen corresponding path program 1 times [2023-12-02 18:52:26,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:52:26,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473454698] [2023-12-02 18:52:26,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:26,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:52:26,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:27,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:52:27,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:52:27,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473454698] [2023-12-02 18:52:27,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473454698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:27,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:27,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:52:27,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300369738] [2023-12-02 18:52:27,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:27,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:52:27,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:52:27,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:52:27,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:52:27,078 INFO L87 Difference]: Start difference. First operand has 71 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 53 states have internal predecessors, (63), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) 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) [2023-12-02 18:52:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:27,143 INFO L93 Difference]: Finished difference Result 140 states and 191 transitions. [2023-12-02 18:52:27,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:52:27,145 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 [2023-12-02 18:52:27,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:27,155 INFO L225 Difference]: With dead ends: 140 [2023-12-02 18:52:27,155 INFO L226 Difference]: Without dead ends: 66 [2023-12-02 18:52:27,159 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 18:52:27,163 INFO L413 NwaCegarLoop]: 75 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, 75 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:27,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:52:27,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-02 18:52:27,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-12-02 18:52:27,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 49 states have internal predecessors, (55), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 18:52:27,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2023-12-02 18:52:27,223 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 17 [2023-12-02 18:52:27,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:27,235 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2023-12-02 18:52:27,236 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) [2023-12-02 18:52:27,236 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2023-12-02 18:52:27,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 18:52:27,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:27,239 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:52:27,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:52:27,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:27,240 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:27,240 INFO L85 PathProgramCache]: Analyzing trace with hash 503857351, now seen corresponding path program 1 times [2023-12-02 18:52:27,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:52:27,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749856269] [2023-12-02 18:52:27,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:27,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:52:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:27,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:52:27,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:52:27,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749856269] [2023-12-02 18:52:27,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749856269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:27,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:27,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:52:27,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630247532] [2023-12-02 18:52:27,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:27,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:52:27,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:52:27,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:52:27,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:27,342 INFO L87 Difference]: Start difference. First operand 66 states and 86 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) [2023-12-02 18:52:27,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:27,384 INFO L93 Difference]: Finished difference Result 104 states and 134 transitions. [2023-12-02 18:52:27,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:52:27,385 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 [2023-12-02 18:52:27,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:27,386 INFO L225 Difference]: With dead ends: 104 [2023-12-02 18:52:27,387 INFO L226 Difference]: Without dead ends: 58 [2023-12-02 18:52:27,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:52:27,389 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 14 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 105 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 [2023-12-02 18:52:27,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 105 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 18:52:27,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-02 18:52:27,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-02 18:52:27,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 44 states have internal predecessors, (49), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-02 18:52:27,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 75 transitions. [2023-12-02 18:52:27,401 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 75 transitions. Word has length 18 [2023-12-02 18:52:27,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:27,402 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 75 transitions. [2023-12-02 18:52:27,402 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) [2023-12-02 18:52:27,402 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2023-12-02 18:52:27,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-02 18:52:27,404 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:27,404 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] [2023-12-02 18:52:27,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 18:52:27,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:27,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:27,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1336979506, now seen corresponding path program 1 times [2023-12-02 18:52:27,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:52:27,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133425485] [2023-12-02 18:52:27,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:27,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:52:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:27,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:52:27,523 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:52:27,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133425485] [2023-12-02 18:52:27,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133425485] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:27,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:27,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 18:52:27,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041860136] [2023-12-02 18:52:27,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:27,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 18:52:27,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:52:27,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 18:52:27,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 18:52:27,526 INFO L87 Difference]: Start difference. First operand 58 states and 75 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-12-02 18:52:27,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:27,675 INFO L93 Difference]: Finished difference Result 162 states and 216 transitions. [2023-12-02 18:52:27,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 18:52:27,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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 21 [2023-12-02 18:52:27,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:27,678 INFO L225 Difference]: With dead ends: 162 [2023-12-02 18:52:27,678 INFO L226 Difference]: Without dead ends: 106 [2023-12-02 18:52:27,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:52:27,681 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 88 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:27,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 155 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:52:27,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-12-02 18:52:27,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 89. [2023-12-02 18:52:27,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 57 states have (on average 1.368421052631579) internal successors, (78), 68 states have internal predecessors, (78), 18 states have call successors, (18), 13 states have call predecessors, (18), 13 states have return successors, (19), 13 states have call predecessors, (19), 18 states have call successors, (19) [2023-12-02 18:52:27,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 115 transitions. [2023-12-02 18:52:27,704 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 115 transitions. Word has length 21 [2023-12-02 18:52:27,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:27,705 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 115 transitions. [2023-12-02 18:52:27,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-12-02 18:52:27,705 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 115 transitions. [2023-12-02 18:52:27,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 18:52:27,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:27,707 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] [2023-12-02 18:52:27,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 18:52:27,707 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:27,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:27,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1747698055, now seen corresponding path program 1 times [2023-12-02 18:52:27,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:52:27,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312282637] [2023-12-02 18:52:27,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:27,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:52:27,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:52:27,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 18:52:27,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:52:27,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312282637] [2023-12-02 18:52:27,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312282637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:52:27,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:52:27,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 18:52:27,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265220594] [2023-12-02 18:52:27,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:52:27,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 18:52:27,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:52:27,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 18:52:27,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-02 18:52:27,887 INFO L87 Difference]: Start difference. First operand 89 states and 115 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, (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) [2023-12-02 18:52:27,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:52:27,992 INFO L93 Difference]: Finished difference Result 241 states and 317 transitions. [2023-12-02 18:52:27,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 18:52:27,993 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, (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 24 [2023-12-02 18:52:27,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:52:27,995 INFO L225 Difference]: With dead ends: 241 [2023-12-02 18:52:27,995 INFO L226 Difference]: Without dead ends: 154 [2023-12-02 18:52:27,997 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 18:52:27,998 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 48 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:52:27,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 174 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:52:28,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-12-02 18:52:28,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 147. [2023-12-02 18:52:28,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 99 states have (on average 1.3232323232323233) internal successors, (131), 112 states have internal predecessors, (131), 26 states have call successors, (26), 21 states have call predecessors, (26), 21 states have return successors, (28), 21 states have call predecessors, (28), 26 states have call successors, (28) [2023-12-02 18:52:28,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 185 transitions. [2023-12-02 18:52:28,024 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 185 transitions. Word has length 24 [2023-12-02 18:52:28,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:52:28,024 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 185 transitions. [2023-12-02 18:52:28,025 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, (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) [2023-12-02 18:52:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 185 transitions. [2023-12-02 18:52:28,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 18:52:28,027 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:52:28,027 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] [2023-12-02 18:52:28,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 18:52:28,028 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:52:28,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:52:28,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1673219681, now seen corresponding path program 1 times [2023-12-02 18:52:28,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:52:28,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839520208] [2023-12-02 18:52:28,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:52:28,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:52:28,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:52:28,046 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 18:52:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 18:52:28,083 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 18:52:28,083 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 18:52:28,084 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 18:52:28,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 18:52:28,089 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-02 18:52:28,093 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 18:52:28,115 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret49 could not be translated [2023-12-02 18:52:28,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 06:52:28 BoogieIcfgContainer [2023-12-02 18:52:28,128 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 18:52:28,128 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 18:52:28,128 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 18:52:28,129 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 18:52:28,129 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:52:26" (3/4) ... [2023-12-02 18:52:28,130 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-02 18:52:28,139 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret49 could not be translated [2023-12-02 18:52:28,183 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/witness.graphml [2023-12-02 18:52:28,183 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 18:52:28,184 INFO L158 Benchmark]: Toolchain (without parser) took 2359.96ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 119.3MB in the beginning and 114.4MB in the end (delta: 4.9MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2023-12-02 18:52:28,184 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 18:52:28,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.02ms. Allocated memory is still 159.4MB. Free memory was 118.8MB in the beginning and 99.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 18:52:28,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.42ms. Allocated memory is still 159.4MB. Free memory was 99.5MB in the beginning and 97.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:52:28,185 INFO L158 Benchmark]: Boogie Preprocessor took 28.57ms. Allocated memory is still 159.4MB. Free memory was 97.4MB in the beginning and 95.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:52:28,186 INFO L158 Benchmark]: RCFGBuilder took 443.87ms. Allocated memory is still 159.4MB. Free memory was 95.8MB in the beginning and 71.2MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-12-02 18:52:28,186 INFO L158 Benchmark]: TraceAbstraction took 1355.60ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 70.6MB in the beginning and 117.6MB in the end (delta: -47.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-12-02 18:52:28,187 INFO L158 Benchmark]: Witness Printer took 55.19ms. Allocated memory is still 220.2MB. Free memory was 117.6MB in the beginning and 114.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 18:52:28,189 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory is still 123.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.02ms. Allocated memory is still 159.4MB. Free memory was 118.8MB in the beginning and 99.5MB in the end (delta: 19.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.42ms. Allocated memory is still 159.4MB. Free memory was 99.5MB in the beginning and 97.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.57ms. Allocated memory is still 159.4MB. Free memory was 97.4MB in the beginning and 95.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.87ms. Allocated memory is still 159.4MB. Free memory was 95.8MB in the beginning and 71.2MB in the end (delta: 24.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1355.60ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 70.6MB in the beginning and 117.6MB in the end (delta: -47.0MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 55.19ms. Allocated memory is still 220.2MB. Free memory was 117.6MB in the beginning and 114.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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,"wsllib_check.i","") [145] - GenericResultAtLocation [Line: 154]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [154] - GenericResultAtLocation [Line: 520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] - GenericResultAtLocation [Line: 590]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [590] - GenericResultAtLocation [Line: 805]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [805] - GenericResultAtLocation [Line: 839]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [839] - GenericResultAtLocation [Line: 877]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [877] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret49 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret49 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: 150]: 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; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L595] int pumpRunning = 0; [L596] int systemActive = 1; [L878] int cleanupTimeShifts = 4; [L951] int retValue_acc ; [L952] int tmp ; [L956] FCALL select_helpers() [L957] FCALL select_features() [L958] CALL, EXPR valid_product() [L869] int retValue_acc ; [L872] retValue_acc = 1 [L873] return (retValue_acc); [L958] RET, EXPR valid_product() [L958] tmp = valid_product() [L960] COND TRUE \read(tmp) [L962] FCALL setup() [L963] CALL runTest() [L945] CALL test() [L525] int splverifierCounter ; [L526] int tmp ; [L527] int tmp___0 ; [L528] int tmp___1 ; [L529] int tmp___2 ; [L532] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L534] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L536] COND TRUE splverifierCounter < 4 [L542] tmp = __VERIFIER_nondet_int() [L544] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L546] 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 [L546] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L552] tmp___0 = __VERIFIER_nondet_int() [L554] 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] [L562] tmp___2 = __VERIFIER_nondet_int() [L564] COND FALSE !(\read(tmp___2)) [L568] tmp___1 = __VERIFIER_nondet_int() [L570] COND TRUE \read(tmp___1) [L572] CALL stopSystem() [L794] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L801] systemActive = 0 [L572] RET stopSystem() [L579] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L603] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L610] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L618] CALL __utac_acc__Specification3_spec__1() [L807] int tmp ; [L808] int tmp___0 ; [L809] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L813] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L813] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L813] tmp = isMethaneLevelCritical() [L815] COND FALSE !(\read(tmp)) [L819] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L819] RET, EXPR getWaterLevel() [L819] tmp___0 = getWaterLevel() [L821] COND TRUE tmp___0 == 2 [L823] CALL, EXPR isPumpRunning() [L727] int retValue_acc ; [L730] retValue_acc = pumpRunning [L731] return (retValue_acc); [L823] RET, EXPR isPumpRunning() [L823] tmp___1 = isPumpRunning() [L825] COND FALSE !(\read(tmp___1)) [L829] CALL __automaton_fail() [L150] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 154 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 509 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 250 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 259 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=4, InterpolantAutomatonStates: 13, 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, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 202 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! [2023-12-02 18:52:28,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15559b71-4f69-40a6-a28e-779d2d9cae2f/bin/utaipan-verify-nQ1chXbOIh/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