./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ --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 e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:34:48,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:34:48,165 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 21:34:48,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:34:48,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:34:48,224 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:34:48,225 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:34:48,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:34:48,227 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:34:48,233 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:34:48,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:34:48,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:34:48,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:34:48,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:34:48,239 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:34:48,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:34:48,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:34:48,241 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:34:48,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:34:48,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:34:48,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:34:48,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:34:48,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:34:48,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:34:48,244 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:34:48,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:34:48,245 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:34:48,247 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:34:48,247 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:34:48,248 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:34:48,249 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:34:48,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:34:48,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:34:48,251 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:34:48,251 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:34:48,251 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:34:48,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:34:48,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:34:48,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:34:48,252 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:34:48,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:34:48,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:34:48,253 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_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 [2023-11-23 21:34:48,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:34:48,709 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:34:48,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:34:48,714 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:34:48,714 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:34:48,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2023-11-23 21:34:52,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:34:52,526 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:34:52,527 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2023-11-23 21:34:52,551 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/data/398c3211c/68fa168153d04c4c921f83edd54b3d53/FLAG25c2659e4 [2023-11-23 21:34:52,574 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/data/398c3211c/68fa168153d04c4c921f83edd54b3d53 [2023-11-23 21:34:52,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:34:52,584 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:34:52,589 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:34:52,589 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:34:52,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:34:52,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:34:52" (1/1) ... [2023-11-23 21:34:52,599 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6748af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:52, skipping insertion in model container [2023-11-23 21:34:52,599 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:34:52" (1/1) ... [2023-11-23 21:34:52,692 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:34:53,101 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_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c[13988,14001] [2023-11-23 21:34:53,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:34:53,147 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:34:53,161 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-11-23 21:34:53,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] [2023-11-23 21:34:53,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] [2023-11-23 21:34:53,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [618] [2023-11-23 21:34:53,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [627] [2023-11-23 21:34:53,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [692] [2023-11-23 21:34:53,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [848] [2023-11-23 21:34:53,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [882] [2023-11-23 21:34:53,235 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_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c[13988,14001] [2023-11-23 21:34:53,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:34:53,295 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:34:53,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53 WrapperNode [2023-11-23 21:34:53,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:34:53,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:34:53,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:34:53,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:34:53,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,382 INFO L138 Inliner]: procedures = 52, calls = 94, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 176 [2023-11-23 21:34:53,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:34:53,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:34:53,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:34:53,384 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:34:53,399 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,404 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,421 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:34:53,421 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,421 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,440 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:34:53,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:34:53,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:34:53,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:34:53,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (1/1) ... [2023-11-23 21:34:53,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:34:53,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:34:53,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:34:53,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:34:53,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:34:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-23 21:34:53,576 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-23 21:34:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-23 21:34:53,576 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-23 21:34:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-23 21:34:53,577 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-23 21:34:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-23 21:34:53,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-23 21:34:53,577 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-23 21:34:53,578 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-23 21:34:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:34:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-23 21:34:53,578 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-23 21:34:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:34:53,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:34:53,676 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:34:53,680 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:34:54,109 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:34:54,238 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:34:54,238 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 21:34:54,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:54 BoogieIcfgContainer [2023-11-23 21:34:54,239 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:34:54,242 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:34:54,242 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:34:54,247 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:34:54,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:34:52" (1/3) ... [2023-11-23 21:34:54,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39426a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:34:54, skipping insertion in model container [2023-11-23 21:34:54,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:34:53" (2/3) ... [2023-11-23 21:34:54,249 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39426a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:34:54, skipping insertion in model container [2023-11-23 21:34:54,249 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:54" (3/3) ... [2023-11-23 21:34:54,251 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2023-11-23 21:34:54,277 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:34:54,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:34:54,344 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:34:54,353 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;@6e06174b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:34:54,353 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:34:54,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 48 states have internal predecessors, (66), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-23 21:34:54,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 21:34:54,368 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:54,369 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:54,369 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:34:54,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:54,375 INFO L85 PathProgramCache]: Analyzing trace with hash -424922325, now seen corresponding path program 1 times [2023-11-23 21:34:54,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:54,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099812665] [2023-11-23 21:34:54,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:54,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:54,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:54,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-11-23 21:34:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:54,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:54,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:54,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099812665] [2023-11-23 21:34:54,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099812665] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:54,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:54,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:34:54,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060097267] [2023-11-23 21:34:54,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:54,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:34:54,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:54,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:34:54,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:34:54,752 INFO L87 Difference]: Start difference. First operand has 59 states, 42 states have (on average 1.5714285714285714) internal successors, (66), 48 states have internal predecessors, (66), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:54,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:54,850 INFO L93 Difference]: Finished difference Result 116 states and 169 transitions. [2023-11-23 21:34:54,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:34:54,852 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-11-23 21:34:54,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:54,868 INFO L225 Difference]: With dead ends: 116 [2023-11-23 21:34:54,869 INFO L226 Difference]: Without dead ends: 54 [2023-11-23 21:34:54,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:34:54,881 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:54,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:34:54,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-23 21:34:54,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2023-11-23 21:34:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.435897435897436) internal successors, (56), 44 states have internal predecessors, (56), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 21:34:54,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2023-11-23 21:34:54,956 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 17 [2023-11-23 21:34:54,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:54,956 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2023-11-23 21:34:54,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:54,957 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2023-11-23 21:34:54,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-23 21:34:54,962 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:54,963 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:54,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:34:54,964 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:34:54,967 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:54,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1881155319, now seen corresponding path program 1 times [2023-11-23 21:34:54,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:54,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743955405] [2023-11-23 21:34:54,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:54,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:55,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 21:34:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:55,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:55,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:55,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743955405] [2023-11-23 21:34:55,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743955405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:55,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:55,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:34:55,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145325061] [2023-11-23 21:34:55,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:55,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:55,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:55,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:55,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:55,176 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:55,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:55,214 INFO L93 Difference]: Finished difference Result 81 states and 109 transitions. [2023-11-23 21:34:55,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:55,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-11-23 21:34:55,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:55,216 INFO L225 Difference]: With dead ends: 81 [2023-11-23 21:34:55,216 INFO L226 Difference]: Without dead ends: 46 [2023-11-23 21:34:55,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:55,219 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 11 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:55,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 92 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:34:55,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-23 21:34:55,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-23 21:34:55,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 39 states have internal predecessors, (50), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:34:55,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2023-11-23 21:34:55,231 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 18 [2023-11-23 21:34:55,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:55,232 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2023-11-23 21:34:55,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:55,232 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2023-11-23 21:34:55,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-23 21:34:55,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:55,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:55,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:34:55,234 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:34:55,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:55,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1936032310, now seen corresponding path program 1 times [2023-11-23 21:34:55,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:55,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487106107] [2023-11-23 21:34:55,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:55,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:55,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:55,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:34:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:55,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:55,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487106107] [2023-11-23 21:34:55,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487106107] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:55,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:55,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:34:55,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601949114] [2023-11-23 21:34:55,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:55,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:34:55,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:55,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:34:55,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:34:55,477 INFO L87 Difference]: Start difference. First operand 46 states and 62 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:55,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:55,621 INFO L93 Difference]: Finished difference Result 90 states and 123 transitions. [2023-11-23 21:34:55,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:34:55,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-11-23 21:34:55,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:55,624 INFO L225 Difference]: With dead ends: 90 [2023-11-23 21:34:55,624 INFO L226 Difference]: Without dead ends: 46 [2023-11-23 21:34:55,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:55,627 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 61 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:55,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 76 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:34:55,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-11-23 21:34:55,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2023-11-23 21:34:55,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 39 states have internal predecessors, (49), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-23 21:34:55,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2023-11-23 21:34:55,656 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 21 [2023-11-23 21:34:55,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:55,656 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2023-11-23 21:34:55,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:55,660 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2023-11-23 21:34:55,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-23 21:34:55,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:55,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:55,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:34:55,662 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:34:55,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:55,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1572009085, now seen corresponding path program 1 times [2023-11-23 21:34:55,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:55,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097573951] [2023-11-23 21:34:55,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:55,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:55,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:55,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-23 21:34:55,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:55,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:34:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:55,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:55,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097573951] [2023-11-23 21:34:55,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097573951] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:55,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:55,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:34:55,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715573517] [2023-11-23 21:34:55,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:55,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:55,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:55,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:55,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:55,769 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:34:55,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:55,862 INFO L93 Difference]: Finished difference Result 125 states and 168 transitions. [2023-11-23 21:34:55,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:55,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2023-11-23 21:34:55,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:55,869 INFO L225 Difference]: With dead ends: 125 [2023-11-23 21:34:55,869 INFO L226 Difference]: Without dead ends: 81 [2023-11-23 21:34:55,872 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 [2023-11-23 21:34:55,874 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 51 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:55,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 101 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:34:55,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-23 21:34:55,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2023-11-23 21:34:55,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 64 states have internal predecessors, (82), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-23 21:34:55,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 104 transitions. [2023-11-23 21:34:55,897 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 104 transitions. Word has length 26 [2023-11-23 21:34:55,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:55,898 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 104 transitions. [2023-11-23 21:34:55,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:34:55,898 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2023-11-23 21:34:55,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 21:34:55,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:55,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:55,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:34:55,900 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:34:55,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:55,900 INFO L85 PathProgramCache]: Analyzing trace with hash -80919388, now seen corresponding path program 1 times [2023-11-23 21:34:55,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:55,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302881952] [2023-11-23 21:34:55,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:55,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:55,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:55,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 21:34:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:55,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:55,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:55,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302881952] [2023-11-23 21:34:55,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302881952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:55,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:55,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:34:55,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064459709] [2023-11-23 21:34:55,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:55,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:34:55,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:55,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:34:55,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:55,992 INFO L87 Difference]: Start difference. First operand 79 states and 104 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:56,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:56,044 INFO L93 Difference]: Finished difference Result 229 states and 318 transitions. [2023-11-23 21:34:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:34:56,045 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-23 21:34:56,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:56,047 INFO L225 Difference]: With dead ends: 229 [2023-11-23 21:34:56,047 INFO L226 Difference]: Without dead ends: 152 [2023-11-23 21:34:56,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:34:56,050 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 43 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:56,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 94 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:34:56,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-23 21:34:56,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2023-11-23 21:34:56,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 111 states have (on average 1.4054054054054055) internal successors, (156), 120 states have internal predecessors, (156), 20 states have call successors, (20), 20 states have call predecessors, (20), 18 states have return successors, (28), 18 states have call predecessors, (28), 20 states have call successors, (28) [2023-11-23 21:34:56,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 204 transitions. [2023-11-23 21:34:56,076 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 204 transitions. Word has length 28 [2023-11-23 21:34:56,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:56,077 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 204 transitions. [2023-11-23 21:34:56,077 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, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:56,077 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 204 transitions. [2023-11-23 21:34:56,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 21:34:56,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:56,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:56,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:34:56,080 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:34:56,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:56,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1198944290, now seen corresponding path program 1 times [2023-11-23 21:34:56,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:56,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542237794] [2023-11-23 21:34:56,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:56,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:56,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 21:34:56,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:56,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:56,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:56,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542237794] [2023-11-23 21:34:56,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542237794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:56,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:56,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:34:56,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689198256] [2023-11-23 21:34:56,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:56,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:34:56,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:56,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:34:56,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:34:56,145 INFO L87 Difference]: Start difference. First operand 150 states and 204 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:56,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:56,197 INFO L93 Difference]: Finished difference Result 302 states and 418 transitions. [2023-11-23 21:34:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:34:56,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-23 21:34:56,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:56,200 INFO L225 Difference]: With dead ends: 302 [2023-11-23 21:34:56,200 INFO L226 Difference]: Without dead ends: 154 [2023-11-23 21:34:56,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:34:56,202 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 1 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:56,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 149 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:34:56,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-23 21:34:56,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2023-11-23 21:34:56,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 115 states have (on average 1.391304347826087) internal successors, (160), 124 states have internal predecessors, (160), 20 states have call successors, (20), 20 states have call predecessors, (20), 18 states have return successors, (28), 18 states have call predecessors, (28), 20 states have call successors, (28) [2023-11-23 21:34:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 208 transitions. [2023-11-23 21:34:56,227 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 208 transitions. Word has length 28 [2023-11-23 21:34:56,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:56,227 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 208 transitions. [2023-11-23 21:34:56,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 208 transitions. [2023-11-23 21:34:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 21:34:56,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:56,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:56,230 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:34:56,230 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:34:56,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:56,231 INFO L85 PathProgramCache]: Analyzing trace with hash 612138276, now seen corresponding path program 1 times [2023-11-23 21:34:56,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:56,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806378783] [2023-11-23 21:34:56,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:56,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:56,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-23 21:34:56,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:56,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:56,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:56,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806378783] [2023-11-23 21:34:56,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806378783] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:56,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:56,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:34:56,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613356567] [2023-11-23 21:34:56,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:56,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:34:56,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:56,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:34:56,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:34:56,322 INFO L87 Difference]: Start difference. First operand 154 states and 208 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:56,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:56,402 INFO L93 Difference]: Finished difference Result 306 states and 418 transitions. [2023-11-23 21:34:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:34:56,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-23 21:34:56,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:56,406 INFO L225 Difference]: With dead ends: 306 [2023-11-23 21:34:56,406 INFO L226 Difference]: Without dead ends: 154 [2023-11-23 21:34:56,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:56,411 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 16 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:56,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 146 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:34:56,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-11-23 21:34:56,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 152. [2023-11-23 21:34:56,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 113 states have (on average 1.3805309734513274) internal successors, (156), 121 states have internal predecessors, (156), 20 states have call successors, (20), 20 states have call predecessors, (20), 18 states have return successors, (26), 18 states have call predecessors, (26), 20 states have call successors, (26) [2023-11-23 21:34:56,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 202 transitions. [2023-11-23 21:34:56,456 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 202 transitions. Word has length 28 [2023-11-23 21:34:56,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:56,456 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 202 transitions. [2023-11-23 21:34:56,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-23 21:34:56,457 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 202 transitions. [2023-11-23 21:34:56,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 21:34:56,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:56,462 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:56,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:34:56,462 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:34:56,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:56,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1717638208, now seen corresponding path program 1 times [2023-11-23 21:34:56,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:56,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275850865] [2023-11-23 21:34:56,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:56,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:56,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-23 21:34:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:56,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-23 21:34:56,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:56,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:56,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:56,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275850865] [2023-11-23 21:34:56,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275850865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:56,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:56,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:34:56,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165973714] [2023-11-23 21:34:56,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:56,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:34:56,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:56,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:34:56,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:34:56,577 INFO L87 Difference]: Start difference. First operand 152 states and 202 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:34:56,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:56,659 INFO L93 Difference]: Finished difference Result 302 states and 406 transitions. [2023-11-23 21:34:56,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:34:56,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-11-23 21:34:56,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:56,668 INFO L225 Difference]: With dead ends: 302 [2023-11-23 21:34:56,670 INFO L226 Difference]: Without dead ends: 152 [2023-11-23 21:34:56,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:56,673 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 39 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:56,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 153 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:34:56,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2023-11-23 21:34:56,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 150. [2023-11-23 21:34:56,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 111 states have (on average 1.3513513513513513) internal successors, (150), 119 states have internal predecessors, (150), 20 states have call successors, (20), 20 states have call predecessors, (20), 18 states have return successors, (26), 18 states have call predecessors, (26), 20 states have call successors, (26) [2023-11-23 21:34:56,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 196 transitions. [2023-11-23 21:34:56,702 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 196 transitions. Word has length 31 [2023-11-23 21:34:56,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:56,708 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 196 transitions. [2023-11-23 21:34:56,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:34:56,708 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 196 transitions. [2023-11-23 21:34:56,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-23 21:34:56,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:56,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:56,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-23 21:34:56,713 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:34:56,713 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:56,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1325318604, now seen corresponding path program 1 times [2023-11-23 21:34:56,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:56,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519721228] [2023-11-23 21:34:56,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:56,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:56,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 21:34:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-23 21:34:56,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:56,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:56,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:56,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519721228] [2023-11-23 21:34:56,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519721228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:56,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:56,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:34:56,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913680545] [2023-11-23 21:34:56,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:56,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:34:56,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:56,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:34:56,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:56,804 INFO L87 Difference]: Start difference. First operand 150 states and 196 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-23 21:34:56,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:56,984 INFO L93 Difference]: Finished difference Result 325 states and 425 transitions. [2023-11-23 21:34:56,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:34:56,985 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 32 [2023-11-23 21:34:56,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:56,986 INFO L225 Difference]: With dead ends: 325 [2023-11-23 21:34:56,986 INFO L226 Difference]: Without dead ends: 83 [2023-11-23 21:34:56,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:34:56,990 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 82 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:56,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 197 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:34:56,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-23 21:34:57,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2023-11-23 21:34:57,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 65 states have internal predecessors, (77), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 9 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-23 21:34:57,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 99 transitions. [2023-11-23 21:34:57,004 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 99 transitions. Word has length 32 [2023-11-23 21:34:57,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:57,005 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 99 transitions. [2023-11-23 21:34:57,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2023-11-23 21:34:57,005 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 99 transitions. [2023-11-23 21:34:57,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 21:34:57,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:57,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:57,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-23 21:34:57,008 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:34:57,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:57,008 INFO L85 PathProgramCache]: Analyzing trace with hash 869576344, now seen corresponding path program 1 times [2023-11-23 21:34:57,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:57,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600970372] [2023-11-23 21:34:57,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:57,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:57,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 21:34:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:57,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 21:34:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:57,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 21:34:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:57,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:57,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:57,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600970372] [2023-11-23 21:34:57,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600970372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:57,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:57,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:34:57,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280892182] [2023-11-23 21:34:57,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:57,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:34:57,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:57,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:34:57,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:34:57,102 INFO L87 Difference]: Start difference. First operand 81 states and 99 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:34:57,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:57,207 INFO L93 Difference]: Finished difference Result 160 states and 197 transitions. [2023-11-23 21:34:57,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:34:57,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-11-23 21:34:57,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:57,210 INFO L225 Difference]: With dead ends: 160 [2023-11-23 21:34:57,210 INFO L226 Difference]: Without dead ends: 81 [2023-11-23 21:34:57,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:34:57,211 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 44 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:57,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 132 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:34:57,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2023-11-23 21:34:57,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2023-11-23 21:34:57,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 65 states have internal predecessors, (76), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 9 states have call predecessors, (12), 10 states have call successors, (12) [2023-11-23 21:34:57,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 98 transitions. [2023-11-23 21:34:57,223 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 98 transitions. Word has length 35 [2023-11-23 21:34:57,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:57,225 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 98 transitions. [2023-11-23 21:34:57,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:34:57,225 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 98 transitions. [2023-11-23 21:34:57,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-23 21:34:57,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:34:57,226 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:57,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-23 21:34:57,227 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:34:57,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:34:57,227 INFO L85 PathProgramCache]: Analyzing trace with hash -151492010, now seen corresponding path program 1 times [2023-11-23 21:34:57,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:34:57,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169354953] [2023-11-23 21:34:57,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:34:57,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:34:57,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:57,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 21:34:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:57,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-23 21:34:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:57,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 21:34:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:34:57,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:34:57,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 21:34:57,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169354953] [2023-11-23 21:34:57,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169354953] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:34:57,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:34:57,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 21:34:57,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002208519] [2023-11-23 21:34:57,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:34:57,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 21:34:57,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 21:34:57,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 21:34:57,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-23 21:34:57,355 INFO L87 Difference]: Start difference. First operand 81 states and 98 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:34:57,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:34:57,458 INFO L93 Difference]: Finished difference Result 137 states and 167 transitions. [2023-11-23 21:34:57,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:34:57,459 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-11-23 21:34:57,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:34:57,461 INFO L225 Difference]: With dead ends: 137 [2023-11-23 21:34:57,461 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:34:57,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-23 21:34:57,462 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 35 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:34:57,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 119 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:34:57,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:34:57,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:34:57,463 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) [2023-11-23 21:34:57,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:34:57,464 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2023-11-23 21:34:57,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:34:57,464 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:34:57,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-23 21:34:57,465 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:34:57,465 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:34:57,467 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:34:57,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-23 21:34:57,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:34:58,140 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 724 730) no Hoare annotation was computed. [2023-11-23 21:34:58,140 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 724 730) the Hoare annotation is: true [2023-11-23 21:34:58,140 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 83 94) the Hoare annotation is: true [2023-11-23 21:34:58,140 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2023-11-23 21:34:58,140 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2023-11-23 21:34:58,141 INFO L899 garLoopResultBuilder]: For program point L704-1(lines 703 722) no Hoare annotation was computed. [2023-11-23 21:34:58,141 INFO L895 garLoopResultBuilder]: At program point L746(line 746) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= |timeShift_processEnvironment_~tmp~5#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0) (or (not (= |old(~pumpRunning~0)| 1)) .cse0))) [2023-11-23 21:34:58,141 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 136 149) no Hoare annotation was computed. [2023-11-23 21:34:58,141 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 878) no Hoare annotation was computed. [2023-11-23 21:34:58,142 INFO L895 garLoopResultBuilder]: At program point L751(line 751) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (= ~pumpRunning~0 1)) (or (< 1 |old(~waterLevel~0)|) (<= ~waterLevel~0 1) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse1))) [2023-11-23 21:34:58,142 INFO L899 garLoopResultBuilder]: For program point L623(line 623) no Hoare annotation was computed. [2023-11-23 21:34:58,142 INFO L899 garLoopResultBuilder]: For program point L751-1(lines 732 756) no Hoare annotation was computed. [2023-11-23 21:34:58,142 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 146) no Hoare annotation was computed. [2023-11-23 21:34:58,142 INFO L899 garLoopResultBuilder]: For program point L838(lines 838 842) no Hoare annotation was computed. [2023-11-23 21:34:58,142 INFO L899 garLoopResultBuilder]: For program point L838-2(lines 838 842) no Hoare annotation was computed. [2023-11-23 21:34:58,143 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 700 723) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 (and .cse1 (= ~pumpRunning~0 1))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse1) .cse0))) [2023-11-23 21:34:58,143 INFO L899 garLoopResultBuilder]: For program point L711-1(lines 711 717) no Hoare annotation was computed. [2023-11-23 21:34:58,143 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 748) no Hoare annotation was computed. [2023-11-23 21:34:58,143 INFO L899 garLoopResultBuilder]: For program point L868(lines 868 874) no Hoare annotation was computed. [2023-11-23 21:34:58,143 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 753) no Hoare annotation was computed. [2023-11-23 21:34:58,143 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 877) no Hoare annotation was computed. [2023-11-23 21:34:58,143 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2023-11-23 21:34:58,143 INFO L899 garLoopResultBuilder]: For program point L864-1(lines 849 881) no Hoare annotation was computed. [2023-11-23 21:34:58,143 INFO L899 garLoopResultBuilder]: For program point L63-2(lines 59 70) no Hoare annotation was computed. [2023-11-23 21:34:58,144 INFO L895 garLoopResultBuilder]: At program point L856(line 856) the Hoare annotation is: (let ((.cse4 (<= ~waterLevel~0 1)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= ~pumpRunning~0 1)) (.cse3 (< 1 |old(~waterLevel~0)|)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) (= ~pumpRunning~0 0) .cse4 .cse7)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse1) (or .cse5 .cse6 .cse1 (and .cse7 .cse2)) (or .cse3 .cse5 .cse6 .cse1)))) [2023-11-23 21:34:58,144 INFO L899 garLoopResultBuilder]: For program point L856-1(line 856) no Hoare annotation was computed. [2023-11-23 21:34:58,144 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 700 723) no Hoare annotation was computed. [2023-11-23 21:34:58,144 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 623) no Hoare annotation was computed. [2023-11-23 21:34:58,144 INFO L902 garLoopResultBuilder]: At program point L163-2(lines 163 177) the Hoare annotation is: true [2023-11-23 21:34:58,145 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 153 182) no Hoare annotation was computed. [2023-11-23 21:34:58,145 INFO L902 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: true [2023-11-23 21:34:58,145 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2023-11-23 21:34:58,145 INFO L899 garLoopResultBuilder]: For program point L178(lines 153 182) no Hoare annotation was computed. [2023-11-23 21:34:58,145 INFO L899 garLoopResultBuilder]: For program point L174(line 174) no Hoare annotation was computed. [2023-11-23 21:34:58,145 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 153 182) the Hoare annotation is: true [2023-11-23 21:34:58,145 INFO L899 garLoopResultBuilder]: For program point L167(lines 167 171) no Hoare annotation was computed. [2023-11-23 21:34:58,145 INFO L902 garLoopResultBuilder]: At program point L167-1(lines 167 171) the Hoare annotation is: true [2023-11-23 21:34:58,146 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 95 103) the Hoare annotation is: true [2023-11-23 21:34:58,146 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2023-11-23 21:34:58,146 INFO L895 garLoopResultBuilder]: At program point L684(lines 637 685) the Hoare annotation is: false [2023-11-23 21:34:58,146 INFO L899 garLoopResultBuilder]: For program point L639(lines 638 683) no Hoare annotation was computed. [2023-11-23 21:34:58,146 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 679) no Hoare annotation was computed. [2023-11-23 21:34:58,146 INFO L895 garLoopResultBuilder]: At program point L660(line 660) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) .cse0) (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) .cse0 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)))) [2023-11-23 21:34:58,147 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 246) no Hoare annotation was computed. [2023-11-23 21:34:58,147 INFO L899 garLoopResultBuilder]: For program point L239-2(lines 239 246) no Hoare annotation was computed. [2023-11-23 21:34:58,147 INFO L895 garLoopResultBuilder]: At program point L681(lines 638 683) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) .cse0) (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) .cse0 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)))) [2023-11-23 21:34:58,147 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 654) no Hoare annotation was computed. [2023-11-23 21:34:58,147 INFO L899 garLoopResultBuilder]: For program point L648-1(lines 648 654) no Hoare annotation was computed. [2023-11-23 21:34:58,147 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:34:58,147 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:34:58,147 INFO L899 garLoopResultBuilder]: For program point L674(lines 674 678) no Hoare annotation was computed. [2023-11-23 21:34:58,148 INFO L895 garLoopResultBuilder]: At program point L674-2(lines 668 679) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) .cse0) (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) .cse0 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)))) [2023-11-23 21:34:58,148 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 664) no Hoare annotation was computed. [2023-11-23 21:34:58,148 INFO L899 garLoopResultBuilder]: For program point L658-1(lines 658 664) no Hoare annotation was computed. [2023-11-23 21:34:58,148 INFO L899 garLoopResultBuilder]: For program point L687(lines 628 691) no Hoare annotation was computed. [2023-11-23 21:34:58,148 INFO L895 garLoopResultBuilder]: At program point L650(line 650) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (<= ~waterLevel~0 1) (= 1 ~systemActive~0) .cse0) (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) .cse0 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)))) [2023-11-23 21:34:58,149 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2023-11-23 21:34:58,149 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2023-11-23 21:34:58,149 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 71 82) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or (< 1 |old(~waterLevel~0)|) (not (= ~pumpRunning~0 0)) .cse0 .cse1) (or (not (= ~pumpRunning~0 1)) .cse0 .cse1))) [2023-11-23 21:34:58,151 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:34:58,155 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:34:58,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:34:58 BoogieIcfgContainer [2023-11-23 21:34:58,173 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:34:58,173 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:34:58,173 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:34:58,173 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:34:58,174 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:34:54" (3/4) ... [2023-11-23 21:34:58,176 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:34:58,179 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-23 21:34:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-23 21:34:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-23 21:34:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-23 21:34:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-23 21:34:58,180 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-23 21:34:58,192 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2023-11-23 21:34:58,192 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-23 21:34:58,193 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 21:34:58,194 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:34:58,194 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 21:34:58,312 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 21:34:58,313 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 21:34:58,313 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:34:58,314 INFO L158 Benchmark]: Toolchain (without parser) took 5729.86ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 113.7MB in the beginning and 108.2MB in the end (delta: 5.5MB). Peak memory consumption was 38.5MB. Max. memory is 16.1GB. [2023-11-23 21:34:58,314 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:34:58,314 INFO L158 Benchmark]: CACSL2BoogieTranslator took 707.82ms. Allocated memory is still 153.1MB. Free memory was 113.4MB in the beginning and 94.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:34:58,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.62ms. Allocated memory is still 153.1MB. Free memory was 94.6MB in the beginning and 92.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:34:58,315 INFO L158 Benchmark]: Boogie Preprocessor took 59.95ms. Allocated memory is still 153.1MB. Free memory was 92.4MB in the beginning and 90.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:34:58,316 INFO L158 Benchmark]: RCFGBuilder took 794.63ms. Allocated memory is still 153.1MB. Free memory was 90.1MB in the beginning and 117.1MB in the end (delta: -27.0MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2023-11-23 21:34:58,317 INFO L158 Benchmark]: TraceAbstraction took 3930.49ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 116.5MB in the beginning and 115.6MB in the end (delta: 971.5kB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2023-11-23 21:34:58,317 INFO L158 Benchmark]: Witness Printer took 139.84ms. Allocated memory is still 184.5MB. Free memory was 115.6MB in the beginning and 108.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 21:34:58,320 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory is still 61.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 707.82ms. Allocated memory is still 153.1MB. Free memory was 113.4MB in the beginning and 94.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.62ms. Allocated memory is still 153.1MB. Free memory was 94.6MB in the beginning and 92.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.95ms. Allocated memory is still 153.1MB. Free memory was 92.4MB in the beginning and 90.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 794.63ms. Allocated memory is still 153.1MB. Free memory was 90.1MB in the beginning and 117.1MB in the end (delta: -27.0MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3930.49ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 116.5MB in the beginning and 115.6MB in the end (delta: 971.5kB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * Witness Printer took 139.84ms. Allocated memory is still 184.5MB. Free memory was 115.6MB in the beginning and 108.2MB 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 150]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [150] - GenericResultAtLocation [Line: 252]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [252] - GenericResultAtLocation [Line: 618]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [618] - GenericResultAtLocation [Line: 627]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [627] - GenericResultAtLocation [Line: 692]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [692] - GenericResultAtLocation [Line: 848]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [848] - GenericResultAtLocation [Line: 882]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [882] * 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: 623]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 400 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 383 mSDsluCounter, 1326 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 748 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 494 IncrementalHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 578 mSDtfsCounter, 494 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=6, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 10 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 267 PreInvPairs, 296 NumberOfFragments, 328 HoareAnnotationTreeSize, 267 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 17 FomulaSimplificationsInter, 549 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 299 NumberOfCodeBlocks, 299 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 637]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 638]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (tmp == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((tmp == systemActive) && (splverifierCounter == 0)) && !((0 == systemActive))) && (pumpRunning == 1))) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:34:58,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fccb5a20-873e-47df-a4ee-c21fc65ad6fd/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE