./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:21,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:21,817 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:00:21,837 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:21,840 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:21,890 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:21,891 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:21,891 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:21,893 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:21,898 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:21,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:21,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:21,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:21,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:21,902 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:21,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:21,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:21,903 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:00:21,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:21,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:00:21,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:21,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:21,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:21,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:21,907 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:00:21,907 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:21,907 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:21,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:21,909 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:21,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:21,910 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:21,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:21,911 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:21,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:21,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:21,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:21,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:00:21,912 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:21,912 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:21,913 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:21,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:21,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:21,914 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7448e2a4dcf9053e3462616ae6225740bd78f5c7802032dea6a738b62c6fd6a [2023-11-26 12:00:22,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:22,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:22,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:22,280 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:22,280 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:22,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2023-11-26 12:00:25,320 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:25,595 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:25,601 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c [2023-11-26 12:00:25,621 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/data/5fd536e15/f84c55df3e0142029096295a88743677/FLAGdfb371e0f [2023-11-26 12:00:25,641 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/data/5fd536e15/f84c55df3e0142029096295a88743677 [2023-11-26 12:00:25,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:25,652 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:25,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:25,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:25,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:25,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,663 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd0bf1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:25, skipping insertion in model container [2023-11-26 12:00:25,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:25" (1/1) ... [2023-11-26 12:00:25,737 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:26,016 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_3f0ae7b1-b440-4cae-9565-4fa0da91efef/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2023-11-26 12:00:26,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:26,110 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:26,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [49] [2023-11-26 12:00:26,123 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] [2023-11-26 12:00:26,123 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [297] [2023-11-26 12:00:26,123 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] [2023-11-26 12:00:26,124 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [432] [2023-11-26 12:00:26,124 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] [2023-11-26 12:00:26,124 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [561] [2023-11-26 12:00:26,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [570] [2023-11-26 12:00:26,153 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_3f0ae7b1-b440-4cae-9565-4fa0da91efef/sv-benchmarks/c/product-lines/minepump_spec3_product35.cil.c[8262,8275] [2023-11-26 12:00:26,192 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:26,217 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:26,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26 WrapperNode [2023-11-26 12:00:26,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:26,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:26,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:26,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:26,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,266 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,305 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 183 [2023-11-26 12:00:26,305 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:26,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:26,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:26,307 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:26,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,319 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,337 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 12:00:26,337 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,337 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,347 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,349 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:26,362 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:26,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:26,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:26,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (1/1) ... [2023-11-26 12:00:26,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:26,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:26,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:26,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-26 12:00:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-26 12:00:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-26 12:00:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-26 12:00:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-26 12:00:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-26 12:00:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-26 12:00:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-26 12:00:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-26 12:00:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-26 12:00:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:00:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-26 12:00:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-26 12:00:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:26,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:26,517 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:26,520 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:26,855 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:26,958 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:26,958 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 12:00:26,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:26 BoogieIcfgContainer [2023-11-26 12:00:26,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:26,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:26,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:26,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:26,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:25" (1/3) ... [2023-11-26 12:00:26,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d88892e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:26, skipping insertion in model container [2023-11-26 12:00:26,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:26" (2/3) ... [2023-11-26 12:00:26,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d88892e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:26, skipping insertion in model container [2023-11-26 12:00:26,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:26" (3/3) ... [2023-11-26 12:00:26,978 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2023-11-26 12:00:27,000 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:27,000 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:00:27,057 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:27,064 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=PETRI_NET, 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;@6e9fbbfd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:27,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:00:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 50 states have internal predecessors, (69), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:00:27,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-26 12:00:27,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:27,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:27,087 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:27,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:27,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1652315186, now seen corresponding path program 1 times [2023-11-26 12:00:27,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:27,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206306686] [2023-11-26 12:00:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:27,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:27,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:27,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-26 12:00:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:27,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:27,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206306686] [2023-11-26 12:00:27,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206306686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:27,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:27,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:27,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138766266] [2023-11-26 12:00:27,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:27,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:00:27,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:27,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:00:27,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:00:27,325 INFO L87 Difference]: Start difference. First operand has 61 states, 44 states have (on average 1.5681818181818181) internal successors, (69), 50 states have internal predecessors, (69), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) 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) [2023-11-26 12:00:27,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:27,394 INFO L93 Difference]: Finished difference Result 120 states and 175 transitions. [2023-11-26 12:00:27,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:00:27,397 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 [2023-11-26 12:00:27,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:27,406 INFO L225 Difference]: With dead ends: 120 [2023-11-26 12:00:27,406 INFO L226 Difference]: Without dead ends: 56 [2023-11-26 12:00:27,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:00:27,413 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:27,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:27,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-11-26 12:00:27,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-11-26 12:00:27,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 46 states have internal predecessors, (59), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-26 12:00:27,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 76 transitions. [2023-11-26 12:00:27,460 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 76 transitions. Word has length 17 [2023-11-26 12:00:27,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:27,460 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 76 transitions. [2023-11-26 12:00:27,461 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) [2023-11-26 12:00:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 76 transitions. [2023-11-26 12:00:27,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 12:00:27,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:27,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:27,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:00:27,464 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:27,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:27,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1202524625, now seen corresponding path program 1 times [2023-11-26 12:00:27,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:27,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069029678] [2023-11-26 12:00:27,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:27,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:27,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 12:00:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:27,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:27,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:27,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069029678] [2023-11-26 12:00:27,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069029678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:27,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:27,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:27,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120905165] [2023-11-26 12:00:27,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:27,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:27,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:27,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:27,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:27,582 INFO L87 Difference]: Start difference. First operand 56 states and 76 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) [2023-11-26 12:00:27,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:27,617 INFO L93 Difference]: Finished difference Result 83 states and 112 transitions. [2023-11-26 12:00:27,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:27,617 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 [2023-11-26 12:00:27,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:27,619 INFO L225 Difference]: With dead ends: 83 [2023-11-26 12:00:27,619 INFO L226 Difference]: Without dead ends: 48 [2023-11-26 12:00:27,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:27,621 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 14 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:27,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 93 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:27,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2023-11-26 12:00:27,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2023-11-26 12:00:27,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.4722222222222223) internal successors, (53), 41 states have internal predecessors, (53), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 12:00:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2023-11-26 12:00:27,632 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 18 [2023-11-26 12:00:27,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:27,632 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2023-11-26 12:00:27,632 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) [2023-11-26 12:00:27,633 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2023-11-26 12:00:27,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-26 12:00:27,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:27,634 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] [2023-11-26 12:00:27,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:00:27,635 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:27,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:27,636 INFO L85 PathProgramCache]: Analyzing trace with hash -736959585, now seen corresponding path program 1 times [2023-11-26 12:00:27,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:27,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601164815] [2023-11-26 12:00:27,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:27,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:27,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 12:00:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:27,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:27,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:27,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601164815] [2023-11-26 12:00:27,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601164815] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:27,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:27,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:27,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107043761] [2023-11-26 12:00:27,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:27,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:27,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:27,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:27,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:27,783 INFO L87 Difference]: Start difference. First operand 48 states and 65 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, (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) [2023-11-26 12:00:27,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:27,837 INFO L93 Difference]: Finished difference Result 140 states and 192 transitions. [2023-11-26 12:00:27,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:27,837 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, (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 [2023-11-26 12:00:27,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:27,839 INFO L225 Difference]: With dead ends: 140 [2023-11-26 12:00:27,839 INFO L226 Difference]: Without dead ends: 94 [2023-11-26 12:00:27,840 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 [2023-11-26 12:00:27,842 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 52 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:27,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 115 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:27,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-11-26 12:00:27,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2023-11-26 12:00:27,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.4776119402985075) internal successors, (99), 76 states have internal predecessors, (99), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 12:00:27,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 123 transitions. [2023-11-26 12:00:27,875 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 123 transitions. Word has length 21 [2023-11-26 12:00:27,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:27,876 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 123 transitions. [2023-11-26 12:00:27,876 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, (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) [2023-11-26 12:00:27,876 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 123 transitions. [2023-11-26 12:00:27,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-26 12:00:27,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:27,878 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] [2023-11-26 12:00:27,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:00:27,879 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:27,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:27,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1747867751, now seen corresponding path program 1 times [2023-11-26 12:00:27,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:27,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835130743] [2023-11-26 12:00:27,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:27,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:28,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-26 12:00:28,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:28,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:28,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:28,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835130743] [2023-11-26 12:00:28,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835130743] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:28,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:28,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:00:28,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825628669] [2023-11-26 12:00:28,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:28,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:28,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:28,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:28,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:28,104 INFO L87 Difference]: Start difference. First operand 90 states and 123 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 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) [2023-11-26 12:00:28,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:28,199 INFO L93 Difference]: Finished difference Result 260 states and 368 transitions. [2023-11-26 12:00:28,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:28,200 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 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 [2023-11-26 12:00:28,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:28,203 INFO L225 Difference]: With dead ends: 260 [2023-11-26 12:00:28,203 INFO L226 Difference]: Without dead ends: 172 [2023-11-26 12:00:28,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:28,210 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 39 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:28,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 145 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:28,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-11-26 12:00:28,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 170. [2023-11-26 12:00:28,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 127 states have (on average 1.4409448818897639) internal successors, (183), 142 states have internal predecessors, (183), 24 states have call successors, (24), 20 states have call predecessors, (24), 18 states have return successors, (26), 18 states have call predecessors, (26), 24 states have call successors, (26) [2023-11-26 12:00:28,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 233 transitions. [2023-11-26 12:00:28,246 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 233 transitions. Word has length 24 [2023-11-26 12:00:28,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:28,247 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 233 transitions. [2023-11-26 12:00:28,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 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) [2023-11-26 12:00:28,247 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 233 transitions. [2023-11-26 12:00:28,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-26 12:00:28,250 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:28,250 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] [2023-11-26 12:00:28,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:00:28,251 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:00:28,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:28,252 INFO L85 PathProgramCache]: Analyzing trace with hash 691438541, now seen corresponding path program 1 times [2023-11-26 12:00:28,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:28,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104149425] [2023-11-26 12:00:28,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:28,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:28,275 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:00:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:00:28,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:00:28,316 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 12:00:28,317 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:00:28,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:00:28,322 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-26 12:00:28,327 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:00:28,352 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret19 could not be translated [2023-11-26 12:00:28,366 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:00:28 BoogieIcfgContainer [2023-11-26 12:00:28,366 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:00:28,367 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:00:28,368 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:00:28,368 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:00:28,368 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:26" (3/4) ... [2023-11-26 12:00:28,369 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-26 12:00:28,383 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret19 could not be translated [2023-11-26 12:00:28,434 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:00:28,434 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:00:28,435 INFO L158 Benchmark]: Toolchain (without parser) took 2783.32ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 130.7MB in the beginning and 134.5MB in the end (delta: -3.8MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-11-26 12:00:28,435 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 92.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:28,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 567.22ms. Allocated memory is still 161.5MB. Free memory was 130.7MB in the beginning and 111.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 12:00:28,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.40ms. Allocated memory is still 161.5MB. Free memory was 111.3MB in the beginning and 109.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:28,437 INFO L158 Benchmark]: Boogie Preprocessor took 55.11ms. Allocated memory is still 161.5MB. Free memory was 109.2MB in the beginning and 106.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:28,437 INFO L158 Benchmark]: RCFGBuilder took 596.65ms. Allocated memory is still 161.5MB. Free memory was 106.4MB in the beginning and 117.1MB in the end (delta: -10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 12:00:28,438 INFO L158 Benchmark]: TraceAbstraction took 1405.27ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 116.8MB in the beginning and 137.6MB in the end (delta: -20.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-26 12:00:28,438 INFO L158 Benchmark]: Witness Printer took 66.89ms. Allocated memory is still 195.0MB. Free memory was 137.6MB in the beginning and 134.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:28,440 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 92.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 567.22ms. Allocated memory is still 161.5MB. Free memory was 130.7MB in the beginning and 111.3MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.40ms. Allocated memory is still 161.5MB. Free memory was 111.3MB in the beginning and 109.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.11ms. Allocated memory is still 161.5MB. Free memory was 109.2MB in the beginning and 106.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 596.65ms. Allocated memory is still 161.5MB. Free memory was 106.4MB in the beginning and 117.1MB in the end (delta: -10.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1405.27ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 116.8MB in the beginning and 137.6MB in the end (delta: -20.8MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 66.89ms. Allocated memory is still 195.0MB. Free memory was 137.6MB in the beginning and 134.5MB 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,"scenario.i","") [49] - GenericResultAtLocation [Line: 121]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [121] - GenericResultAtLocation [Line: 297]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [297] - GenericResultAtLocation [Line: 333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [333] - GenericResultAtLocation [Line: 432]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [432] - GenericResultAtLocation [Line: 526]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [526] - GenericResultAtLocation [Line: 561]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [561] - GenericResultAtLocation [Line: 570]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [570] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret19 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret19 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: 566]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L130] int pumpRunning = 0; [L131] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L433] int waterLevel = 1; [L434] int methaneLevelCritical = 0; [L740] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L410] int retValue_acc ; [L411] int tmp ; [L415] FCALL select_helpers() [L416] FCALL select_features() [L417] CALL, EXPR valid_product() [L553] int retValue_acc ; [L556] retValue_acc = 1 [L557] return (retValue_acc); [L417] RET, EXPR valid_product() [L417] tmp = valid_product() [L419] COND TRUE \read(tmp) [L421] FCALL setup() [L422] CALL runTest() [L401] CALL test() [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L65] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L77] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L451] COND TRUE waterLevel < 2 [L452] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L83] tmp___0 = __VERIFIER_nondet_int() [L85] 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] [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND FALSE !(\read(tmp___2)) [L99] tmp___1 = __VERIFIER_nondet_int() [L101] COND TRUE \read(tmp___1) [L103] CALL stopSystem() [L286] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L293] systemActive = 0 [L103] RET stopSystem() [L110] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L138] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L145] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L153] CALL __utac_acc__Specification3_spec__1() [L301] int tmp ; [L302] int tmp___0 ; [L303] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L307] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L472] int retValue_acc ; [L475] retValue_acc = methaneLevelCritical [L476] return (retValue_acc); [L307] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L307] tmp = isMethaneLevelCritical() [L309] COND FALSE !(\read(tmp)) [L313] CALL, EXPR getWaterLevel() [L504] int retValue_acc ; [L507] retValue_acc = waterLevel [L508] return (retValue_acc); [L313] RET, EXPR getWaterLevel() [L313] tmp___0 = getWaterLevel() [L315] COND TRUE tmp___0 == 2 [L317] CALL, EXPR isPumpRunning() [L219] int retValue_acc ; [L222] retValue_acc = pumpRunning [L223] return (retValue_acc); [L317] RET, EXPR isPumpRunning() [L317] tmp___1 = isPumpRunning() [L319] COND FALSE !(\read(tmp___1)) [L323] CALL __automaton_fail() [L566] 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 7 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 108 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 105 mSDsluCounter, 421 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 187 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 107 IncrementalHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 234 mSDtfsCounter, 107 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=4, 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, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 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! [2023-11-26 12:00:28,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f0ae7b1-b440-4cae-9565-4fa0da91efef/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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