./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product49.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_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/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_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/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_b77f971f-8c0f-4f61-a220-36a07824e095/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 278b945680d29bf571e1aaa42d90b0a6b141ce129976e6e0985d57b09f7f9d7c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:04:25,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:04:25,164 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 12:04:25,170 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:04:25,170 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:04:25,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:04:25,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:04:25,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:04:25,201 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:04:25,202 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:04:25,202 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:04:25,203 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:04:25,204 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:04:25,204 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:04:25,205 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:04:25,206 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:04:25,206 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:04:25,207 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:04:25,208 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:04:25,208 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:04:25,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:04:25,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:04:25,214 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:04:25,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:04:25,215 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:04:25,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:04:25,216 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:04:25,217 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:04:25,239 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:04:25,239 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:04:25,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:04:25,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:25,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:04:25,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:04:25,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:04:25,242 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:04:25,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:04:25,243 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:04:25,243 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:04:25,243 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:04:25,244 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:04:25,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:04:25,247 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_b77f971f-8c0f-4f61-a220-36a07824e095/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 278b945680d29bf571e1aaa42d90b0a6b141ce129976e6e0985d57b09f7f9d7c [2023-11-26 12:04:25,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:04:25,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:04:25,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:04:25,606 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:04:25,607 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:04:25,608 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2023-11-26 12:04:28,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:04:29,288 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:04:29,289 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2023-11-26 12:04:29,305 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/data/d8db87928/aa1df471b3fb480ba9e75934ee744e2c/FLAG170029d20 [2023-11-26 12:04:29,325 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/data/d8db87928/aa1df471b3fb480ba9e75934ee744e2c [2023-11-26 12:04:29,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:04:29,330 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:04:29,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:29,332 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:04:29,340 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:04:29,341 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,342 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e65bb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29, skipping insertion in model container [2023-11-26 12:04:29,342 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,421 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:04:29,627 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_b77f971f-8c0f-4f61-a220-36a07824e095/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c[6886,6899] [2023-11-26 12:04:29,699 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:29,710 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:04:29,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2023-11-26 12:04:29,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [261] [2023-11-26 12:04:29,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [329] [2023-11-26 12:04:29,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [433] [2023-11-26 12:04:29,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [442] [2023-11-26 12:04:29,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [543] [2023-11-26 12:04:29,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [578] [2023-11-26 12:04:29,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [944] [2023-11-26 12:04:29,745 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_b77f971f-8c0f-4f61-a220-36a07824e095/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c[6886,6899] [2023-11-26 12:04:29,788 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:04:29,809 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:04:29,809 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29 WrapperNode [2023-11-26 12:04:29,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:04:29,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:29,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:04:29,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:04:29,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,870 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 209 [2023-11-26 12:04:29,871 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:04:29,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:04:29,872 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:04:29,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:04:29,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,887 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,912 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 12:04:29,913 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,936 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,941 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:04:29,942 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:04:29,942 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:04:29,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:04:29,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (1/1) ... [2023-11-26 12:04:29,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:04:29,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:29,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:04:30,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:04:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:04:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-26 12:04:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-26 12:04:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-26 12:04:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-26 12:04:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-26 12:04:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-26 12:04:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 12:04:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 12:04:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-26 12:04:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-26 12:04:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-11-26 12:04:30,050 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-11-26 12:04:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:04:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-26 12:04:30,050 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-26 12:04:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:04:30,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:04:30,138 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:04:30,141 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:04:30,457 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:04:30,587 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:04:30,588 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 12:04:30,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:30 BoogieIcfgContainer [2023-11-26 12:04:30,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:04:30,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:04:30,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:04:30,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:04:30,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:04:29" (1/3) ... [2023-11-26 12:04:30,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f82dfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:30, skipping insertion in model container [2023-11-26 12:04:30,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:04:29" (2/3) ... [2023-11-26 12:04:30,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f82dfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:04:30, skipping insertion in model container [2023-11-26 12:04:30,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:30" (3/3) ... [2023-11-26 12:04:30,599 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2023-11-26 12:04:30,619 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:04:30,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 12:04:30,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:04:30,682 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;@74e372da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:04:30,682 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 12:04:30,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 50 states have (on average 1.54) internal successors, (77), 58 states have internal predecessors, (77), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 12:04:30,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:04:30,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:30,700 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:30,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:30,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:30,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1581762416, now seen corresponding path program 1 times [2023-11-26 12:04:30,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:30,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796696686] [2023-11-26 12:04:30,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:30,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:30,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 12:04:30,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:30,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 12:04:30,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:04:30,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:30,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796696686] [2023-11-26 12:04:30,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796696686] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:30,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:30,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:04:30,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582523041] [2023-11-26 12:04:30,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:30,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 12:04:30,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:31,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 12:04:31,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 12:04:31,032 INFO L87 Difference]: Start difference. First operand has 71 states, 50 states have (on average 1.54) internal successors, (77), 58 states have internal predecessors, (77), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:04:31,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:31,095 INFO L93 Difference]: Finished difference Result 140 states and 203 transitions. [2023-11-26 12:04:31,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 12:04:31,098 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-11-26 12:04:31,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:31,108 INFO L225 Difference]: With dead ends: 140 [2023-11-26 12:04:31,109 INFO L226 Difference]: Without dead ends: 66 [2023-11-26 12:04:31,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 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 12:04:31,117 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:31,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:04:31,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-26 12:04:31,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-26 12:04:31,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.425531914893617) internal successors, (67), 54 states have internal predecessors, (67), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-26 12:04:31,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 90 transitions. [2023-11-26 12:04:31,182 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 90 transitions. Word has length 22 [2023-11-26 12:04:31,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:31,183 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 90 transitions. [2023-11-26 12:04:31,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:04:31,185 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2023-11-26 12:04:31,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-26 12:04:31,191 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:31,192 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:31,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:04:31,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:31,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:31,194 INFO L85 PathProgramCache]: Analyzing trace with hash -656262365, now seen corresponding path program 1 times [2023-11-26 12:04:31,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:31,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602568384] [2023-11-26 12:04:31,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:31,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 12:04:31,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-26 12:04:31,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:04:31,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:31,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602568384] [2023-11-26 12:04:31,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602568384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:31,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:31,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:31,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508884866] [2023-11-26 12:04:31,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:31,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:31,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:31,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:31,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:31,362 INFO L87 Difference]: Start difference. First operand 66 states and 90 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:04:31,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:31,431 INFO L93 Difference]: Finished difference Result 105 states and 143 transitions. [2023-11-26 12:04:31,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:31,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-26 12:04:31,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:31,433 INFO L225 Difference]: With dead ends: 105 [2023-11-26 12:04:31,433 INFO L226 Difference]: Without dead ends: 58 [2023-11-26 12:04:31,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 12:04:31,436 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 11 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:31,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 120 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:04:31,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-26 12:04:31,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-26 12:04:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 49 states have internal predecessors, (61), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:04:31,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-11-26 12:04:31,448 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 23 [2023-11-26 12:04:31,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:31,449 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-11-26 12:04:31,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:04:31,449 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2023-11-26 12:04:31,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-26 12:04:31,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:31,451 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:31,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:04:31,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:31,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:31,452 INFO L85 PathProgramCache]: Analyzing trace with hash 2026892957, now seen corresponding path program 1 times [2023-11-26 12:04:31,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:31,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317337917] [2023-11-26 12:04:31,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:31,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:31,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:04:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 12:04:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:04:31,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:31,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317337917] [2023-11-26 12:04:31,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317337917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:31,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:31,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:04:31,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146298936] [2023-11-26 12:04:31,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:31,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:04:31,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:31,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:04:31,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:04:31,626 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:04:31,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:31,727 INFO L93 Difference]: Finished difference Result 114 states and 157 transitions. [2023-11-26 12:04:31,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:04:31,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2023-11-26 12:04:31,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:31,730 INFO L225 Difference]: With dead ends: 114 [2023-11-26 12:04:31,730 INFO L226 Difference]: Without dead ends: 58 [2023-11-26 12:04:31,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 12:04:31,733 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 75 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:31,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 98 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:04:31,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-11-26 12:04:31,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-11-26 12:04:31,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 49 states have internal predecessors, (60), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:04:31,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 78 transitions. [2023-11-26 12:04:31,746 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 78 transitions. Word has length 26 [2023-11-26 12:04:31,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:31,748 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 78 transitions. [2023-11-26 12:04:31,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:04:31,748 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 78 transitions. [2023-11-26 12:04:31,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-26 12:04:31,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:31,750 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:31,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:04:31,751 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:31,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:31,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1661671047, now seen corresponding path program 1 times [2023-11-26 12:04:31,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:31,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075238208] [2023-11-26 12:04:31,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:31,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:04:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-26 12:04:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:04:31,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:31,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075238208] [2023-11-26 12:04:31,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075238208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:31,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:31,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:04:31,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177185380] [2023-11-26 12:04:31,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:31,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:04:31,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:31,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:04:31,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:04:31,837 INFO L87 Difference]: Start difference. First operand 58 states and 78 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:04:31,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:31,934 INFO L93 Difference]: Finished difference Result 156 states and 213 transitions. [2023-11-26 12:04:31,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:04:31,935 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2023-11-26 12:04:31,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:31,940 INFO L225 Difference]: With dead ends: 156 [2023-11-26 12:04:31,941 INFO L226 Difference]: Without dead ends: 100 [2023-11-26 12:04:31,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 12:04:31,952 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 61 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:31,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 130 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:04:31,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-26 12:04:31,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2023-11-26 12:04:31,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.380281690140845) internal successors, (98), 78 states have internal predecessors, (98), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2023-11-26 12:04:31,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 130 transitions. [2023-11-26 12:04:31,990 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 130 transitions. Word has length 31 [2023-11-26 12:04:31,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:31,991 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 130 transitions. [2023-11-26 12:04:31,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-26 12:04:31,992 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 130 transitions. [2023-11-26 12:04:31,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-26 12:04:31,999 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:31,999 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:32,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 12:04:32,001 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:32,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:32,001 INFO L85 PathProgramCache]: Analyzing trace with hash -101524931, now seen corresponding path program 1 times [2023-11-26 12:04:32,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:32,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733480109] [2023-11-26 12:04:32,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:32,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:04:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 12:04:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 12:04:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:04:32,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:32,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733480109] [2023-11-26 12:04:32,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733480109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:32,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:32,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:04:32,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35067736] [2023-11-26 12:04:32,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:32,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:04:32,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:32,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:04:32,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:04:32,215 INFO L87 Difference]: Start difference. First operand 98 states and 130 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:04:32,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:32,389 INFO L93 Difference]: Finished difference Result 218 states and 294 transitions. [2023-11-26 12:04:32,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:04:32,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-11-26 12:04:32,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:32,395 INFO L225 Difference]: With dead ends: 218 [2023-11-26 12:04:32,398 INFO L226 Difference]: Without dead ends: 122 [2023-11-26 12:04:32,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:04:32,405 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 49 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:32,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 196 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:04:32,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-11-26 12:04:32,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2023-11-26 12:04:32,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 88 states have (on average 1.375) internal successors, (121), 95 states have internal predecessors, (121), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2023-11-26 12:04:32,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2023-11-26 12:04:32,436 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 38 [2023-11-26 12:04:32,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:32,437 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2023-11-26 12:04:32,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:04:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2023-11-26 12:04:32,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-26 12:04:32,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:32,444 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:32,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 12:04:32,445 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:32,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:32,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1381388609, now seen corresponding path program 1 times [2023-11-26 12:04:32,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:32,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984440198] [2023-11-26 12:04:32,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:32,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:04:32,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 12:04:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 12:04:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:04:32,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:32,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984440198] [2023-11-26 12:04:32,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984440198] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:32,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:32,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:04:32,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296232676] [2023-11-26 12:04:32,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:32,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:04:32,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:32,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:04:32,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:04:32,597 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:04:32,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:32,773 INFO L93 Difference]: Finished difference Result 247 states and 337 transitions. [2023-11-26 12:04:32,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:04:32,774 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-11-26 12:04:32,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:32,780 INFO L225 Difference]: With dead ends: 247 [2023-11-26 12:04:32,781 INFO L226 Difference]: Without dead ends: 129 [2023-11-26 12:04:32,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:04:32,783 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 54 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:32,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 196 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:04:32,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-26 12:04:32,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 122. [2023-11-26 12:04:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 97 states have internal predecessors, (123), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2023-11-26 12:04:32,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 162 transitions. [2023-11-26 12:04:32,827 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 162 transitions. Word has length 38 [2023-11-26 12:04:32,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:32,829 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 162 transitions. [2023-11-26 12:04:32,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:04:32,830 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 162 transitions. [2023-11-26 12:04:32,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-26 12:04:32,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:32,834 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:32,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 12:04:32,835 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:32,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:32,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1325230785, now seen corresponding path program 1 times [2023-11-26 12:04:32,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:32,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989436361] [2023-11-26 12:04:32,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:32,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:32,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:04:32,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 12:04:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-26 12:04:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:32,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:04:32,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:32,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989436361] [2023-11-26 12:04:32,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989436361] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:32,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:32,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:04:32,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528853427] [2023-11-26 12:04:32,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:32,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:04:32,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:32,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:04:32,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:04:32,962 INFO L87 Difference]: Start difference. First operand 122 states and 162 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:04:33,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:33,239 INFO L93 Difference]: Finished difference Result 364 states and 497 transitions. [2023-11-26 12:04:33,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 12:04:33,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-11-26 12:04:33,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:33,245 INFO L225 Difference]: With dead ends: 364 [2023-11-26 12:04:33,245 INFO L226 Difference]: Without dead ends: 244 [2023-11-26 12:04:33,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:04:33,249 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 187 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:33,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 208 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:04:33,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-26 12:04:33,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 236. [2023-11-26 12:04:33,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 172 states have (on average 1.319767441860465) internal successors, (227), 183 states have internal predecessors, (227), 34 states have call successors, (34), 28 states have call predecessors, (34), 29 states have return successors, (53), 34 states have call predecessors, (53), 34 states have call successors, (53) [2023-11-26 12:04:33,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 314 transitions. [2023-11-26 12:04:33,293 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 314 transitions. Word has length 38 [2023-11-26 12:04:33,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:33,294 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 314 transitions. [2023-11-26 12:04:33,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-26 12:04:33,294 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 314 transitions. [2023-11-26 12:04:33,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-26 12:04:33,295 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:33,295 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:33,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:04:33,296 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:33,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:33,297 INFO L85 PathProgramCache]: Analyzing trace with hash 629070449, now seen corresponding path program 1 times [2023-11-26 12:04:33,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:33,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962521529] [2023-11-26 12:04:33,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:33,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:33,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-26 12:04:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:33,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-26 12:04:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:33,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 12:04:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:33,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-26 12:04:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:33,439 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:04:33,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:33,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962521529] [2023-11-26 12:04:33,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962521529] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:33,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:33,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:04:33,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568044852] [2023-11-26 12:04:33,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:33,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:04:33,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:33,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:04:33,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:04:33,446 INFO L87 Difference]: Start difference. First operand 236 states and 314 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 12:04:33,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:33,744 INFO L93 Difference]: Finished difference Result 474 states and 635 transitions. [2023-11-26 12:04:33,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-26 12:04:33,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-11-26 12:04:33,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:33,747 INFO L225 Difference]: With dead ends: 474 [2023-11-26 12:04:33,747 INFO L226 Difference]: Without dead ends: 240 [2023-11-26 12:04:33,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-11-26 12:04:33,749 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 105 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:33,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 253 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:04:33,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-26 12:04:33,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 232. [2023-11-26 12:04:33,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 168 states have (on average 1.2797619047619047) internal successors, (215), 179 states have internal predecessors, (215), 34 states have call successors, (34), 28 states have call predecessors, (34), 29 states have return successors, (53), 34 states have call predecessors, (53), 34 states have call successors, (53) [2023-11-26 12:04:33,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 302 transitions. [2023-11-26 12:04:33,778 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 302 transitions. Word has length 41 [2023-11-26 12:04:33,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:33,778 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 302 transitions. [2023-11-26 12:04:33,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-26 12:04:33,779 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 302 transitions. [2023-11-26 12:04:33,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-26 12:04:33,780 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:33,780 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:33,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 12:04:33,780 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:33,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:33,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1114780583, now seen corresponding path program 1 times [2023-11-26 12:04:33,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:33,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881037408] [2023-11-26 12:04:33,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:33,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:33,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 12:04:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 12:04:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-26 12:04:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-26 12:04:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:04:34,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:34,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881037408] [2023-11-26 12:04:34,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881037408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:34,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:34,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-26 12:04:34,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015279259] [2023-11-26 12:04:34,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:34,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:04:34,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:34,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:04:34,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:04:34,041 INFO L87 Difference]: Start difference. First operand 232 states and 302 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 12:04:34,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:34,612 INFO L93 Difference]: Finished difference Result 718 states and 973 transitions. [2023-11-26 12:04:34,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-26 12:04:34,613 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2023-11-26 12:04:34,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:34,616 INFO L225 Difference]: With dead ends: 718 [2023-11-26 12:04:34,617 INFO L226 Difference]: Without dead ends: 532 [2023-11-26 12:04:34,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2023-11-26 12:04:34,619 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 344 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:34,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 306 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-26 12:04:34,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-11-26 12:04:34,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 449. [2023-11-26 12:04:34,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 326 states have (on average 1.2791411042944785) internal successors, (417), 350 states have internal predecessors, (417), 65 states have call successors, (65), 49 states have call predecessors, (65), 57 states have return successors, (104), 67 states have call predecessors, (104), 65 states have call successors, (104) [2023-11-26 12:04:34,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 586 transitions. [2023-11-26 12:04:34,675 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 586 transitions. Word has length 42 [2023-11-26 12:04:34,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:34,675 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 586 transitions. [2023-11-26 12:04:34,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-26 12:04:34,676 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 586 transitions. [2023-11-26 12:04:34,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-26 12:04:34,677 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:34,678 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:34,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:04:34,678 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:34,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:34,679 INFO L85 PathProgramCache]: Analyzing trace with hash 829498276, now seen corresponding path program 1 times [2023-11-26 12:04:34,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:34,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127756408] [2023-11-26 12:04:34,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:34,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 12:04:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 12:04:34,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:04:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 12:04:34,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-26 12:04:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-26 12:04:34,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:04:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-26 12:04:34,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,825 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-11-26 12:04:34,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:34,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127756408] [2023-11-26 12:04:34,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127756408] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:04:34,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637366513] [2023-11-26 12:04:34,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:34,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:04:34,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:34,832 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:04:34,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:04:34,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:34,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-26 12:04:34,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:35,135 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:35,136 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:04:35,373 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-26 12:04:35,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637366513] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:04:35,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:04:35,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2023-11-26 12:04:35,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86966258] [2023-11-26 12:04:35,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:04:35,375 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-26 12:04:35,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:35,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-26 12:04:35,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-26 12:04:35,377 INFO L87 Difference]: Start difference. First operand 449 states and 586 transitions. Second operand has 12 states, 10 states have (on average 8.5) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-26 12:04:36,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:36,513 INFO L93 Difference]: Finished difference Result 964 states and 1292 transitions. [2023-11-26 12:04:36,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-26 12:04:36,513 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.5) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 76 [2023-11-26 12:04:36,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:36,519 INFO L225 Difference]: With dead ends: 964 [2023-11-26 12:04:36,519 INFO L226 Difference]: Without dead ends: 559 [2023-11-26 12:04:36,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 167 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=255, Invalid=1005, Unknown=0, NotChecked=0, Total=1260 [2023-11-26 12:04:36,523 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 253 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:36,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 791 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:04:36,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-11-26 12:04:36,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 504. [2023-11-26 12:04:36,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 363 states have (on average 1.258953168044077) internal successors, (457), 393 states have internal predecessors, (457), 74 states have call successors, (74), 62 states have call predecessors, (74), 66 states have return successors, (95), 69 states have call predecessors, (95), 74 states have call successors, (95) [2023-11-26 12:04:36,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 626 transitions. [2023-11-26 12:04:36,602 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 626 transitions. Word has length 76 [2023-11-26 12:04:36,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:36,603 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 626 transitions. [2023-11-26 12:04:36,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.5) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-11-26 12:04:36,604 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 626 transitions. [2023-11-26 12:04:36,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-26 12:04:36,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:04:36,609 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:36,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:04:36,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:04:36,822 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 12:04:36,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:36,823 INFO L85 PathProgramCache]: Analyzing trace with hash -629021355, now seen corresponding path program 1 times [2023-11-26 12:04:36,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:36,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971235525] [2023-11-26 12:04:36,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:36,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:36,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-26 12:04:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 12:04:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:04:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-26 12:04:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-26 12:04:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:04:37,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 12:04:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 12:04:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-26 12:04:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:04:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-26 12:04:37,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-26 12:04:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-26 12:04:37,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,221 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 75 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-11-26 12:04:37,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:37,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971235525] [2023-11-26 12:04:37,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971235525] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:04:37,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1216693215] [2023-11-26 12:04:37,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:37,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:04:37,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:37,224 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:04:37,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:04:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:37,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-26 12:04:37,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-26 12:04:37,571 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:04:38,002 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 66 proven. 31 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-26 12:04:38,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1216693215] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:04:38,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:04:38,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 21 [2023-11-26 12:04:38,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889776098] [2023-11-26 12:04:38,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:04:38,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-11-26 12:04:38,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:38,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-11-26 12:04:38,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2023-11-26 12:04:38,006 INFO L87 Difference]: Start difference. First operand 504 states and 626 transitions. Second operand has 21 states, 21 states have (on average 7.190476190476191) internal successors, (151), 18 states have internal predecessors, (151), 10 states have call successors, (28), 8 states have call predecessors, (28), 9 states have return successors, (27), 9 states have call predecessors, (27), 10 states have call successors, (27) [2023-11-26 12:04:39,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:04:39,003 INFO L93 Difference]: Finished difference Result 1060 states and 1361 transitions. [2023-11-26 12:04:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-26 12:04:39,004 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.190476190476191) internal successors, (151), 18 states have internal predecessors, (151), 10 states have call successors, (28), 8 states have call predecessors, (28), 9 states have return successors, (27), 9 states have call predecessors, (27), 10 states have call successors, (27) Word has length 133 [2023-11-26 12:04:39,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:04:39,005 INFO L225 Difference]: With dead ends: 1060 [2023-11-26 12:04:39,005 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:04:39,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 284 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2023-11-26 12:04:39,010 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 351 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-26 12:04:39,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 446 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 964 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-26 12:04:39,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:04:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:04:39,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:04:39,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:04:39,012 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 133 [2023-11-26 12:04:39,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:04:39,012 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:04:39,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.190476190476191) internal successors, (151), 18 states have internal predecessors, (151), 10 states have call successors, (28), 8 states have call predecessors, (28), 9 states have return successors, (27), 9 states have call predecessors, (27), 10 states have call successors, (27) [2023-11-26 12:04:39,013 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:04:39,013 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:04:39,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 12:04:39,033 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:04:39,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:04:39,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:04:41,997 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 92 98) no Hoare annotation was computed. [2023-11-26 12:04:41,997 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 92 98) the Hoare annotation is: true [2023-11-26 12:04:41,997 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 357 368) the Hoare annotation is: true [2023-11-26 12:04:41,998 INFO L899 garLoopResultBuilder]: For program point L361-1(lines 357 368) no Hoare annotation was computed. [2023-11-26 12:04:41,998 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 357 368) no Hoare annotation was computed. [2023-11-26 12:04:41,998 INFO L899 garLoopResultBuilder]: For program point L450-1(line 450) no Hoare annotation was computed. [2023-11-26 12:04:41,998 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 444 473) no Hoare annotation was computed. [2023-11-26 12:04:41,998 INFO L899 garLoopResultBuilder]: For program point L469(lines 444 473) no Hoare annotation was computed. [2023-11-26 12:04:41,998 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2023-11-26 12:04:41,998 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 462) no Hoare annotation was computed. [2023-11-26 12:04:41,998 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 444 473) the Hoare annotation is: true [2023-11-26 12:04:41,998 INFO L902 garLoopResultBuilder]: At program point L458-1(lines 458 462) the Hoare annotation is: true [2023-11-26 12:04:41,998 INFO L902 garLoopResultBuilder]: At program point L454-2(lines 454 468) the Hoare annotation is: true [2023-11-26 12:04:41,998 INFO L902 garLoopResultBuilder]: At program point L450(line 450) the Hoare annotation is: true [2023-11-26 12:04:41,999 INFO L899 garLoopResultBuilder]: For program point L337(lines 337 341) no Hoare annotation was computed. [2023-11-26 12:04:41,999 INFO L899 garLoopResultBuilder]: For program point L977(lines 977 983) no Hoare annotation was computed. [2023-11-26 12:04:41,999 INFO L899 garLoopResultBuilder]: For program point L337-2(lines 333 344) no Hoare annotation was computed. [2023-11-26 12:04:41,999 INFO L899 garLoopResultBuilder]: For program point L251(lines 251 255) no Hoare annotation was computed. [2023-11-26 12:04:41,999 INFO L899 garLoopResultBuilder]: For program point L251-2(lines 251 255) no Hoare annotation was computed. [2023-11-26 12:04:42,000 INFO L895 garLoopResultBuilder]: At program point L974(line 974) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse10 (<= ~waterLevel~0 1)) (.cse12 (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) (.cse1 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| ~waterLevel~0)) (.cse3 (<= 1 ~switchedOnBeforeTS~0))) (let ((.cse7 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse8 (and .cse4 .cse10 .cse12 .cse1 .cse3)) (.cse11 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (< |old(~pumpRunning~0)| 1)) (.cse6 (= 0 ~systemActive~0)) (.cse9 (and .cse0 .cse10 .cse12 .cse1 .cse3))) (and (let ((.cse2 (= ~waterLevel~0 1))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse2 .cse3 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~9#1| 1)) (not (= |old(~waterLevel~0)| 2)) .cse5 .cse6)) (or (not (= |old(~waterLevel~0)| 1)) .cse7 .cse8 .cse5 .cse6 .cse9) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse10 .cse1 .cse11) .cse6 (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) .cse7 (and .cse4 .cse1 .cse11 .cse3) .cse8 (and .cse0 .cse1 .cse11 .cse3) .cse5 .cse6 .cse9)))) [2023-11-26 12:04:42,000 INFO L899 garLoopResultBuilder]: For program point L974-1(line 974) no Hoare annotation was computed. [2023-11-26 12:04:42,000 INFO L895 garLoopResultBuilder]: At program point L140(line 140) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (<= 1 ~switchedOnBeforeTS~0))) (let ((.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse7 (and .cse0 (<= ~waterLevel~0 1) (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) .cse1)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse4 (= 0 ~systemActive~0))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 .cse3 .cse4) (or .cse5 .cse2 .cse4) (or (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) .cse6 .cse7 .cse3 .cse4 (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) .cse5 .cse4) (or (not (= |old(~waterLevel~0)| 1)) .cse6 .cse7 .cse3 .cse4)))) [2023-11-26 12:04:42,000 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2023-11-26 12:04:42,000 INFO L895 garLoopResultBuilder]: At program point L145(line 145) the Hoare annotation is: (let ((.cse1 (< |old(~pumpRunning~0)| 1)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 (< 2 |old(~waterLevel~0)|)) (or (not (= |old(~waterLevel~0)| 2)) .cse1 .cse0) (or (< 1 |old(~waterLevel~0)|) (< |old(~switchedOnBeforeTS~0)| 1) .cse1 .cse0))) [2023-11-26 12:04:42,001 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 126 150) no Hoare annotation was computed. [2023-11-26 12:04:42,001 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 79 85) no Hoare annotation was computed. [2023-11-26 12:04:42,001 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 65 91) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= 2 ~waterLevel~0)) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse7 (< |old(~pumpRunning~0)| 1)) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5) (or (< 1 |old(~waterLevel~0)|) (and .cse1 .cse3 .cse6) .cse0 .cse5) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse7 .cse5 (and .cse8 .cse3 .cse6) (< 2 |old(~waterLevel~0)|)) (or (and .cse8 .cse2 .cse3) .cse4 .cse7 .cse5))) [2023-11-26 12:04:42,001 INFO L895 garLoopResultBuilder]: At program point L959(line 959) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= 2 ~waterLevel~0)) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse7 (< |old(~pumpRunning~0)| 1)) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5) (or (< 1 |old(~waterLevel~0)|) (and .cse1 .cse3 .cse6) .cse0 .cse5) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse7 .cse5 (and .cse8 .cse3 .cse6) (< 2 |old(~waterLevel~0)|)) (or (and .cse8 .cse2 .cse3) .cse4 .cse7 .cse5))) [2023-11-26 12:04:42,001 INFO L899 garLoopResultBuilder]: For program point L959-1(line 959) no Hoare annotation was computed. [2023-11-26 12:04:42,002 INFO L899 garLoopResultBuilder]: For program point L976(lines 976 986) no Hoare annotation was computed. [2023-11-26 12:04:42,002 INFO L899 garLoopResultBuilder]: For program point L972(lines 972 989) no Hoare annotation was computed. [2023-11-26 12:04:42,002 INFO L899 garLoopResultBuilder]: For program point L972-1(lines 964 992) no Hoare annotation was computed. [2023-11-26 12:04:42,002 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 65 91) no Hoare annotation was computed. [2023-11-26 12:04:42,002 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 438) no Hoare annotation was computed. [2023-11-26 12:04:42,002 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 78) no Hoare annotation was computed. [2023-11-26 12:04:42,002 INFO L899 garLoopResultBuilder]: For program point L72-2(lines 68 90) no Hoare annotation was computed. [2023-11-26 12:04:42,002 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 142) no Hoare annotation was computed. [2023-11-26 12:04:42,002 INFO L899 garLoopResultBuilder]: For program point L130(lines 130 147) no Hoare annotation was computed. [2023-11-26 12:04:42,003 INFO L895 garLoopResultBuilder]: At program point L287(line 287) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse6 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse6 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse3 .cse4))) [2023-11-26 12:04:42,003 INFO L895 garLoopResultBuilder]: At program point L321(lines 274 322) the Hoare annotation is: false [2023-11-26 12:04:42,003 INFO L899 garLoopResultBuilder]: For program point L276(lines 275 320) no Hoare annotation was computed. [2023-11-26 12:04:42,003 INFO L899 garLoopResultBuilder]: For program point L305(lines 305 316) no Hoare annotation was computed. [2023-11-26 12:04:42,003 INFO L895 garLoopResultBuilder]: At program point L297(line 297) the Hoare annotation is: (let ((.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 2) .cse1 .cse2) (and .cse3 (<= ~waterLevel~0 1) .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse2) (and .cse3 (= 2 ~waterLevel~0) .cse0 .cse1 .cse2))) [2023-11-26 12:04:42,003 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:04:42,004 INFO L895 garLoopResultBuilder]: At program point L318(lines 275 320) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 1)) (.cse0 (= ~pumpRunning~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse6 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse3 .cse4) (and .cse0 .cse6 .cse2 .cse3 .cse4) (and .cse5 .cse6 .cse2 .cse3 .cse4))) [2023-11-26 12:04:42,004 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 291) no Hoare annotation was computed. [2023-11-26 12:04:42,004 INFO L899 garLoopResultBuilder]: For program point L285-1(lines 285 291) no Hoare annotation was computed. [2023-11-26 12:04:42,004 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:04:42,004 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 315) no Hoare annotation was computed. [2023-11-26 12:04:42,012 INFO L895 garLoopResultBuilder]: At program point L311-2(lines 305 316) the Hoare annotation is: (let ((.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 2) .cse1 .cse2) (and .cse3 (<= ~waterLevel~0 1) .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse2) (and .cse3 (= 2 ~waterLevel~0) .cse0 .cse1 .cse2))) [2023-11-26 12:04:42,012 INFO L899 garLoopResultBuilder]: For program point L530(lines 530 537) no Hoare annotation was computed. [2023-11-26 12:04:42,012 INFO L899 garLoopResultBuilder]: For program point L530-2(lines 530 537) no Hoare annotation was computed. [2023-11-26 12:04:42,012 INFO L899 garLoopResultBuilder]: For program point L295(lines 295 301) no Hoare annotation was computed. [2023-11-26 12:04:42,013 INFO L899 garLoopResultBuilder]: For program point L295-1(lines 295 301) no Hoare annotation was computed. [2023-11-26 12:04:42,013 INFO L899 garLoopResultBuilder]: For program point L324(lines 265 328) no Hoare annotation was computed. [2023-11-26 12:04:42,013 INFO L895 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) .cse0) (or (< 1 ~waterLevel~0) (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1) .cse0))) [2023-11-26 12:04:42,013 INFO L899 garLoopResultBuilder]: For program point L108(lines 108 116) no Hoare annotation was computed. [2023-11-26 12:04:42,013 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 100 124) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (< 1 ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or .cse0 .cse1 .cse3 .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1) .cse2))) [2023-11-26 12:04:42,014 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 121) no Hoare annotation was computed. [2023-11-26 12:04:42,014 INFO L899 garLoopResultBuilder]: For program point L232(lines 232 236) no Hoare annotation was computed. [2023-11-26 12:04:42,014 INFO L899 garLoopResultBuilder]: For program point L232-2(lines 232 236) no Hoare annotation was computed. [2023-11-26 12:04:42,014 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 410 423) no Hoare annotation was computed. [2023-11-26 12:04:42,014 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 420) no Hoare annotation was computed. [2023-11-26 12:04:42,014 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 100 124) no Hoare annotation was computed. [2023-11-26 12:04:42,015 INFO L895 garLoopResultBuilder]: At program point L119(line 119) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (< 1 ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= 2 ~waterLevel~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1) .cse2))) [2023-11-26 12:04:42,015 INFO L899 garLoopResultBuilder]: For program point L119-1(lines 100 124) no Hoare annotation was computed. [2023-11-26 12:04:42,015 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 345 356) no Hoare annotation was computed. [2023-11-26 12:04:42,015 INFO L899 garLoopResultBuilder]: For program point L349-1(lines 345 356) no Hoare annotation was computed. [2023-11-26 12:04:42,015 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 345 356) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse5 (= 2 ~waterLevel~0)) (.cse6 (not (= |old(~waterLevel~0)| 2))) (.cse0 (< 1 |old(~waterLevel~0)|)) (.cse4 (< ~pumpRunning~0 1)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse3) (or .cse1 .cse5 .cse6 .cse3) (or .cse0 .cse4 (< ~switchedOnBeforeTS~0 1) .cse2 .cse3))) [2023-11-26 12:04:42,016 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 178 186) no Hoare annotation was computed. [2023-11-26 12:04:42,017 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 178 186) the Hoare annotation is: true [2023-11-26 12:04:42,021 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:04:42,024 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:04:42,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:04:42 BoogieIcfgContainer [2023-11-26 12:04:42,054 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:04:42,055 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:04:42,055 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:04:42,055 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:04:42,056 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:04:30" (3/4) ... [2023-11-26 12:04:42,058 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:04:42,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-26 12:04:42,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-26 12:04:42,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-26 12:04:42,062 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-26 12:04:42,063 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-26 12:04:42,063 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-26 12:04:42,063 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2023-11-26 12:04:42,080 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2023-11-26 12:04:42,080 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-26 12:04:42,081 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 12:04:42,082 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:04:42,082 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:04:42,220 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:04:42,221 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:04:42,221 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:04:42,222 INFO L158 Benchmark]: Toolchain (without parser) took 12891.88ms. Allocated memory was 134.2MB in the beginning and 226.5MB in the end (delta: 92.3MB). Free memory was 90.7MB in the beginning and 150.0MB in the end (delta: -59.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-26 12:04:42,222 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:04:42,222 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.47ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 70.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 12:04:42,223 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.91ms. Allocated memory is still 134.2MB. Free memory was 70.8MB in the beginning and 68.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:42,223 INFO L158 Benchmark]: Boogie Preprocessor took 69.69ms. Allocated memory is still 134.2MB. Free memory was 68.6MB in the beginning and 66.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:42,224 INFO L158 Benchmark]: RCFGBuilder took 646.62ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 66.2MB in the beginning and 156.8MB in the end (delta: -90.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-11-26 12:04:42,224 INFO L158 Benchmark]: TraceAbstraction took 11462.81ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 155.9MB in the beginning and 157.3MB in the end (delta: -1.5MB). Peak memory consumption was 131.1MB. Max. memory is 16.1GB. [2023-11-26 12:04:42,225 INFO L158 Benchmark]: Witness Printer took 166.34ms. Allocated memory is still 226.5MB. Free memory was 157.3MB in the beginning and 150.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 12:04:42,227 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 134.2MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.47ms. Allocated memory is still 134.2MB. Free memory was 90.3MB in the beginning and 70.8MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.91ms. Allocated memory is still 134.2MB. Free memory was 70.8MB in the beginning and 68.6MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.69ms. Allocated memory is still 134.2MB. Free memory was 68.6MB in the beginning and 66.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 646.62ms. Allocated memory was 134.2MB in the beginning and 188.7MB in the end (delta: 54.5MB). Free memory was 66.2MB in the beginning and 156.8MB in the end (delta: -90.6MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * TraceAbstraction took 11462.81ms. Allocated memory was 188.7MB in the beginning and 226.5MB in the end (delta: 37.7MB). Free memory was 155.9MB in the beginning and 157.3MB in the end (delta: -1.5MB). Peak memory consumption was 131.1MB. Max. memory is 16.1GB. * Witness Printer took 166.34ms. Allocated memory is still 226.5MB. Free memory was 157.3MB in the beginning and 150.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] - GenericResultAtLocation [Line: 261]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [261] - GenericResultAtLocation [Line: 329]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [329] - GenericResultAtLocation [Line: 433]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [433] - GenericResultAtLocation [Line: 442]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [442] - GenericResultAtLocation [Line: 543]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [543] - GenericResultAtLocation [Line: 578]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [578] - GenericResultAtLocation [Line: 944]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [944] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 438]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.4s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1528 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1490 mSDsluCounter, 2825 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2008 mSDsCounter, 445 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2861 IncrementalHoareTripleChecker+Invalid, 3306 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 445 mSolverCounterUnsat, 817 mSDtfsCounter, 2861 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 654 GetRequests, 522 SyntacticMatches, 8 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=504occurred in iteration=10, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 165 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 705 PreInvPairs, 804 NumberOfFragments, 958 HoareAnnotationTreeSize, 705 FomulaSimplifications, 3031 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 21 FomulaSimplificationsInter, 6291 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 717 NumberOfCodeBlocks, 717 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 911 ConstructedInterpolants, 0 QuantifiedInterpolants, 1776 SizeOfPredicates, 5 NumberOfNonLiveVariables, 758 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 483/552 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (tmp == systemActive)) && !((0 == systemActive))) || ((((((1 <= pumpRunning) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (tmp == systemActive)) && !((0 == systemActive)))) || (((((pumpRunning == 0) && (2 == waterLevel)) && (splverifierCounter == 0)) && (tmp == systemActive)) && !((0 == systemActive)))) || (((((1 <= pumpRunning) && (2 == waterLevel)) && (splverifierCounter == 0)) && (tmp == systemActive)) && !((0 == systemActive)))) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-26 12:04:42,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b77f971f-8c0f-4f61-a220-36a07824e095/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 Result: TRUE