./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu --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 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:39:31,075 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:39:31,139 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 07:39:31,144 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:39:31,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:39:31,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:39:31,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:39:31,171 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:39:31,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:39:31,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:39:31,173 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:39:31,174 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:39:31,174 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:39:31,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:39:31,176 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:39:31,176 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 07:39:31,177 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:39:31,177 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 07:39:31,178 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:39:31,178 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:39:31,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:39:31,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:39:31,180 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 07:39:31,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:39:31,181 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:39:31,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:39:31,182 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:39:31,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:39:31,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:31,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:39:31,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:39:31,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:39:31,184 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:39:31,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:39:31,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:39:31,185 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:39:31,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:39:31,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:39:31,186 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:39:31,186 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_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cfed743c16ce3c8683c42b92f2e032d4ce7b489a9d3a5e140ec6101c472b3cb [2023-11-19 07:39:31,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:39:31,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:39:31,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:39:31,467 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:39:31,468 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:39:31,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2023-11-19 07:39:34,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:39:34,862 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:39:34,863 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2023-11-19 07:39:34,878 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/data/a6eb23e37/e224bf528738406d9ca89913e645c270/FLAGe58cf10ed [2023-11-19 07:39:34,893 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/data/a6eb23e37/e224bf528738406d9ca89913e645c270 [2023-11-19 07:39:34,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:39:34,905 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:39:34,907 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:34,907 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:39:34,913 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:39:34,913 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:34" (1/1) ... [2023-11-19 07:39:34,915 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@758f2f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:34, skipping insertion in model container [2023-11-19 07:39:34,915 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:34" (1/1) ... [2023-11-19 07:39:34,970 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:39:35,262 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_cc653a3b-ae71-4af3-9091-5fc4eea6081a/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c[17978,17991] [2023-11-19 07:39:35,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:35,278 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:39:35,289 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-11-19 07:39:35,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2023-11-19 07:39:35,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [267] [2023-11-19 07:39:35,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [335] [2023-11-19 07:39:35,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] [2023-11-19 07:39:35,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [465] [2023-11-19 07:39:35,292 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [561] [2023-11-19 07:39:35,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] [2023-11-19 07:39:35,353 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_cc653a3b-ae71-4af3-9091-5fc4eea6081a/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c[17978,17991] [2023-11-19 07:39:35,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:39:35,382 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:39:35,382 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35 WrapperNode [2023-11-19 07:39:35,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:39:35,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:35,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:39:35,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:39:35,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (1/1) ... [2023-11-19 07:39:35,423 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (1/1) ... [2023-11-19 07:39:35,452 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 193 [2023-11-19 07:39:35,453 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:39:35,454 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:39:35,454 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:39:35,454 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:39:35,465 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (1/1) ... [2023-11-19 07:39:35,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (1/1) ... [2023-11-19 07:39:35,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (1/1) ... [2023-11-19 07:39:35,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (1/1) ... [2023-11-19 07:39:35,476 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (1/1) ... [2023-11-19 07:39:35,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (1/1) ... [2023-11-19 07:39:35,483 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (1/1) ... [2023-11-19 07:39:35,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (1/1) ... [2023-11-19 07:39:35,487 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:39:35,488 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:39:35,488 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:39:35,489 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:39:35,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (1/1) ... [2023-11-19 07:39:35,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:39:35,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:35,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:39:35,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:39:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:39:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 07:39:35,576 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 07:39:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 07:39:35,579 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 07:39:35,579 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-11-19 07:39:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-11-19 07:39:35,580 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 07:39:35,580 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 07:39:35,580 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 07:39:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 07:39:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:39:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 07:39:35,581 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 07:39:35,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:39:35,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:39:35,715 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:39:35,718 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:39:36,041 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:39:36,049 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:39:36,050 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:39:36,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:36 BoogieIcfgContainer [2023-11-19 07:39:36,080 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:39:36,083 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:39:36,083 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:39:36,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:39:36,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:39:34" (1/3) ... [2023-11-19 07:39:36,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710dd85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:36, skipping insertion in model container [2023-11-19 07:39:36,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:35" (2/3) ... [2023-11-19 07:39:36,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710dd85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:39:36, skipping insertion in model container [2023-11-19 07:39:36,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:36" (3/3) ... [2023-11-19 07:39:36,092 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2023-11-19 07:39:36,126 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:39:36,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:39:36,179 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:39:36,187 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;@307dcc5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:39:36,187 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:39:36,192 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-19 07:39:36,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 07:39:36,202 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:36,203 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] [2023-11-19 07:39:36,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:36,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:36,209 INFO L85 PathProgramCache]: Analyzing trace with hash -310918915, now seen corresponding path program 1 times [2023-11-19 07:39:36,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:36,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601707877] [2023-11-19 07:39:36,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:36,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-19 07:39:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:36,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:36,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601707877] [2023-11-19 07:39:36,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601707877] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:36,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:36,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:39:36,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837018850] [2023-11-19 07:39:36,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:36,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 07:39:36,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:36,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 07:39:36,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 07:39:36,494 INFO L87 Difference]: Start difference. First operand has 81 states, 63 states have (on average 1.3968253968253967) internal successors, (88), 69 states have internal predecessors, (88), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:39:36,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:36,526 INFO L93 Difference]: Finished difference Result 154 states and 211 transitions. [2023-11-19 07:39:36,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 07:39:36,528 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 25 [2023-11-19 07:39:36,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:36,538 INFO L225 Difference]: With dead ends: 154 [2023-11-19 07:39:36,539 INFO L226 Difference]: Without dead ends: 72 [2023-11-19 07:39:36,543 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 [2023-11-19 07:39:36,547 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:36,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:36,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-11-19 07:39:36,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-11-19 07:39:36,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 61 states have internal predecessors, (74), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:39:36,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 93 transitions. [2023-11-19 07:39:36,594 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 93 transitions. Word has length 25 [2023-11-19 07:39:36,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:36,595 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 93 transitions. [2023-11-19 07:39:36,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:39:36,596 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 93 transitions. [2023-11-19 07:39:36,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 07:39:36,599 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:36,599 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] [2023-11-19 07:39:36,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:39:36,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:36,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:36,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1548949891, now seen corresponding path program 1 times [2023-11-19 07:39:36,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:36,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287321917] [2023-11-19 07:39:36,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:36,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:36,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:36,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:39:36,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:36,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:36,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:36,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287321917] [2023-11-19 07:39:36,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287321917] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:36,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:36,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:36,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955288764] [2023-11-19 07:39:36,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:36,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:36,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:36,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:36,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:36,728 INFO L87 Difference]: Start difference. First operand 72 states and 93 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:39:36,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:36,746 INFO L93 Difference]: Finished difference Result 110 states and 142 transitions. [2023-11-19 07:39:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:36,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 26 [2023-11-19 07:39:36,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:36,749 INFO L225 Difference]: With dead ends: 110 [2023-11-19 07:39:36,749 INFO L226 Difference]: Without dead ends: 63 [2023-11-19 07:39:36,751 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 [2023-11-19 07:39:36,752 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 12 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:36,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:36,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-19 07:39:36,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-19 07:39:36,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.34) internal successors, (67), 55 states have internal predecessors, (67), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:39:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2023-11-19 07:39:36,767 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 26 [2023-11-19 07:39:36,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:36,767 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2023-11-19 07:39:36,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:39:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2023-11-19 07:39:36,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 07:39:36,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:36,770 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] [2023-11-19 07:39:36,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:39:36,771 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:36,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:36,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1454917381, now seen corresponding path program 1 times [2023-11-19 07:39:36,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:36,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667119049] [2023-11-19 07:39:36,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:36,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:36,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:36,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:39:36,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:36,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:36,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:36,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667119049] [2023-11-19 07:39:36,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667119049] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:36,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:36,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:36,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834869480] [2023-11-19 07:39:36,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:36,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:36,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:36,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:36,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:36,979 INFO L87 Difference]: Start difference. First operand 63 states and 81 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:39:37,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:37,004 INFO L93 Difference]: Finished difference Result 119 states and 156 transitions. [2023-11-19 07:39:37,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:37,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 30 [2023-11-19 07:39:37,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:37,009 INFO L225 Difference]: With dead ends: 119 [2023-11-19 07:39:37,009 INFO L226 Difference]: Without dead ends: 63 [2023-11-19 07:39:37,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:37,019 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 63 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:37,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 79 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:37,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-19 07:39:37,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-19 07:39:37,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.32) internal successors, (66), 55 states have internal predecessors, (66), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 07:39:37,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2023-11-19 07:39:37,050 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 30 [2023-11-19 07:39:37,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:37,050 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2023-11-19 07:39:37,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:39:37,051 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2023-11-19 07:39:37,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 07:39:37,056 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:37,056 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] [2023-11-19 07:39:37,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:39:37,057 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:37,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:37,059 INFO L85 PathProgramCache]: Analyzing trace with hash -199527812, now seen corresponding path program 1 times [2023-11-19 07:39:37,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:37,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939091127] [2023-11-19 07:39:37,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:37,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 07:39:37,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:39:37,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:37,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:37,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939091127] [2023-11-19 07:39:37,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939091127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:37,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:37,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:39:37,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909705407] [2023-11-19 07:39:37,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:37,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:39:37,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:37,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:39:37,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:39:37,256 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:39:37,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:37,316 INFO L93 Difference]: Finished difference Result 160 states and 207 transitions. [2023-11-19 07:39:37,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:39:37,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 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 35 [2023-11-19 07:39:37,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:37,319 INFO L225 Difference]: With dead ends: 160 [2023-11-19 07:39:37,319 INFO L226 Difference]: Without dead ends: 104 [2023-11-19 07:39:37,320 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 [2023-11-19 07:39:37,324 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 54 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:37,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 142 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:39:37,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2023-11-19 07:39:37,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2023-11-19 07:39:37,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.3125) internal successors, (105), 87 states have internal predecessors, (105), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-19 07:39:37,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 129 transitions. [2023-11-19 07:39:37,355 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 129 transitions. Word has length 35 [2023-11-19 07:39:37,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:37,356 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 129 transitions. [2023-11-19 07:39:37,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:39:37,357 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 129 transitions. [2023-11-19 07:39:37,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-19 07:39:37,362 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:37,362 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:37,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 07:39:37,364 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:37,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:37,365 INFO L85 PathProgramCache]: Analyzing trace with hash -2013550284, now seen corresponding path program 1 times [2023-11-19 07:39:37,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:37,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067617922] [2023-11-19 07:39:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:37,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:37,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-19 07:39:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-19 07:39:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:37,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:37,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067617922] [2023-11-19 07:39:37,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067617922] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:37,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:37,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:39:37,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007160401] [2023-11-19 07:39:37,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:37,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:39:37,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:37,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:39:37,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:39:37,634 INFO L87 Difference]: Start difference. First operand 102 states and 129 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:39:37,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:37,766 INFO L93 Difference]: Finished difference Result 282 states and 373 transitions. [2023-11-19 07:39:37,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:39:37,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 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 41 [2023-11-19 07:39:37,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:37,769 INFO L225 Difference]: With dead ends: 282 [2023-11-19 07:39:37,769 INFO L226 Difference]: Without dead ends: 187 [2023-11-19 07:39:37,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:39:37,772 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 39 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:37,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 293 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:37,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-19 07:39:37,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 181. [2023-11-19 07:39:37,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 142 states have (on average 1.2887323943661972) internal successors, (183), 152 states have internal predecessors, (183), 21 states have call successors, (21), 19 states have call predecessors, (21), 17 states have return successors, (27), 19 states have call predecessors, (27), 21 states have call successors, (27) [2023-11-19 07:39:37,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 231 transitions. [2023-11-19 07:39:37,800 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 231 transitions. Word has length 41 [2023-11-19 07:39:37,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:37,801 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 231 transitions. [2023-11-19 07:39:37,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:39:37,802 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 231 transitions. [2023-11-19 07:39:37,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:39:37,804 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:37,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:37,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 07:39:37,804 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:37,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:37,805 INFO L85 PathProgramCache]: Analyzing trace with hash -583739890, now seen corresponding path program 1 times [2023-11-19 07:39:37,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:37,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272473370] [2023-11-19 07:39:37,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:37,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:39:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-19 07:39:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:39:37,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:37,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:37,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:37,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272473370] [2023-11-19 07:39:37,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272473370] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:37,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:37,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:39:37,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878392851] [2023-11-19 07:39:37,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:37,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:39:37,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:37,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:39:37,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:39:37,920 INFO L87 Difference]: Start difference. First operand 181 states and 231 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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) [2023-11-19 07:39:38,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:38,206 INFO L93 Difference]: Finished difference Result 464 states and 625 transitions. [2023-11-19 07:39:38,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 07:39:38,207 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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 45 [2023-11-19 07:39:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:38,215 INFO L225 Difference]: With dead ends: 464 [2023-11-19 07:39:38,215 INFO L226 Difference]: Without dead ends: 369 [2023-11-19 07:39:38,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:39:38,217 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 160 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:38,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 306 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:39:38,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2023-11-19 07:39:38,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 344. [2023-11-19 07:39:38,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 270 states have (on average 1.2814814814814814) internal successors, (346), 294 states have internal predecessors, (346), 40 states have call successors, (40), 29 states have call predecessors, (40), 33 states have return successors, (66), 38 states have call predecessors, (66), 40 states have call successors, (66) [2023-11-19 07:39:38,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 452 transitions. [2023-11-19 07:39:38,268 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 452 transitions. Word has length 45 [2023-11-19 07:39:38,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:38,269 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 452 transitions. [2023-11-19 07:39:38,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 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) [2023-11-19 07:39:38,269 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 452 transitions. [2023-11-19 07:39:38,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:39:38,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:38,271 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:38,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 07:39:38,271 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:38,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:38,272 INFO L85 PathProgramCache]: Analyzing trace with hash -364885172, now seen corresponding path program 1 times [2023-11-19 07:39:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:38,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434700066] [2023-11-19 07:39:38,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:38,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:38,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:39:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:38,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-19 07:39:38,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:38,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:39:38,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:38,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:38,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:38,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434700066] [2023-11-19 07:39:38,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434700066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:38,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:38,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:39:38,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578447625] [2023-11-19 07:39:38,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:38,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:39:38,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:38,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:39:38,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:39:38,342 INFO L87 Difference]: Start difference. First operand 344 states and 452 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2023-11-19 07:39:38,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:38,516 INFO L93 Difference]: Finished difference Result 657 states and 881 transitions. [2023-11-19 07:39:38,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:39:38,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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 45 [2023-11-19 07:39:38,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:38,520 INFO L225 Difference]: With dead ends: 657 [2023-11-19 07:39:38,521 INFO L226 Difference]: Without dead ends: 399 [2023-11-19 07:39:38,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:39:38,524 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 98 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:38,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 322 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:38,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-11-19 07:39:38,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 377. [2023-11-19 07:39:38,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 297 states have (on average 1.2626262626262625) internal successors, (375), 324 states have internal predecessors, (375), 44 states have call successors, (44), 29 states have call predecessors, (44), 35 states have return successors, (76), 42 states have call predecessors, (76), 44 states have call successors, (76) [2023-11-19 07:39:38,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 495 transitions. [2023-11-19 07:39:38,563 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 495 transitions. Word has length 45 [2023-11-19 07:39:38,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:38,564 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 495 transitions. [2023-11-19 07:39:38,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 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) [2023-11-19 07:39:38,564 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 495 transitions. [2023-11-19 07:39:38,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-19 07:39:38,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:38,566 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:38,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:39:38,566 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:38,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:38,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1182533622, now seen corresponding path program 1 times [2023-11-19 07:39:38,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:38,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695315583] [2023-11-19 07:39:38,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:38,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:39:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-19 07:39:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:38,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:39:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:38,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:38,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:38,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695315583] [2023-11-19 07:39:38,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695315583] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:38,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:38,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 07:39:38,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960897765] [2023-11-19 07:39:38,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:38,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:39:38,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:38,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:39:38,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:39:38,681 INFO L87 Difference]: Start difference. First operand 377 states and 495 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:39:38,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:38,986 INFO L93 Difference]: Finished difference Result 852 states and 1140 transitions. [2023-11-19 07:39:38,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:39:38,987 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 3 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 45 [2023-11-19 07:39:38,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:38,994 INFO L225 Difference]: With dead ends: 852 [2023-11-19 07:39:38,994 INFO L226 Difference]: Without dead ends: 482 [2023-11-19 07:39:38,996 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2023-11-19 07:39:39,004 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 189 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:39,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 368 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:39,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2023-11-19 07:39:39,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 381. [2023-11-19 07:39:39,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 305 states have (on average 1.2459016393442623) internal successors, (380), 329 states have internal predecessors, (380), 41 states have call successors, (41), 28 states have call predecessors, (41), 34 states have return successors, (73), 39 states have call predecessors, (73), 41 states have call successors, (73) [2023-11-19 07:39:39,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 494 transitions. [2023-11-19 07:39:39,056 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 494 transitions. Word has length 45 [2023-11-19 07:39:39,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:39,057 INFO L495 AbstractCegarLoop]: Abstraction has 381 states and 494 transitions. [2023-11-19 07:39:39,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:39:39,058 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 494 transitions. [2023-11-19 07:39:39,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:39:39,059 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:39,059 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:39,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 07:39:39,060 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:39,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:39,060 INFO L85 PathProgramCache]: Analyzing trace with hash 987986838, now seen corresponding path program 1 times [2023-11-19 07:39:39,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:39,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282469388] [2023-11-19 07:39:39,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:39,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:39:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-19 07:39:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-19 07:39:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:39:39,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:39,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282469388] [2023-11-19 07:39:39,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282469388] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:39:39,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372051848] [2023-11-19 07:39:39,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:39,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:39,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:39:39,297 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:39:39,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:39:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:39,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 07:39:39,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:39:39,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:39:39,499 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:39:39,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372051848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:39,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:39:39,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 9 [2023-11-19 07:39:39,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963382886] [2023-11-19 07:39:39,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:39,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:39:39,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:39,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:39:39,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-19 07:39:39,502 INFO L87 Difference]: Start difference. First operand 381 states and 494 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:39:39,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:39,646 INFO L93 Difference]: Finished difference Result 1105 states and 1463 transitions. [2023-11-19 07:39:39,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-19 07:39:39,647 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2023-11-19 07:39:39,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:39,653 INFO L225 Difference]: With dead ends: 1105 [2023-11-19 07:39:39,654 INFO L226 Difference]: Without dead ends: 731 [2023-11-19 07:39:39,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:39:39,659 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 76 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:39,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 458 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:39,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-11-19 07:39:39,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 715. [2023-11-19 07:39:39,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 570 states have (on average 1.2280701754385965) internal successors, (700), 610 states have internal predecessors, (700), 79 states have call successors, (79), 55 states have call predecessors, (79), 65 states have return successors, (142), 75 states have call predecessors, (142), 79 states have call successors, (142) [2023-11-19 07:39:39,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 921 transitions. [2023-11-19 07:39:39,744 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 921 transitions. Word has length 50 [2023-11-19 07:39:39,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:39,745 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 921 transitions. [2023-11-19 07:39:39,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:39:39,745 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 921 transitions. [2023-11-19 07:39:39,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-19 07:39:39,748 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:39,748 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:39,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:39:39,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:39:39,963 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:39,964 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:39,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1869519007, now seen corresponding path program 1 times [2023-11-19 07:39:39,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:39,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910012936] [2023-11-19 07:39:39,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:39,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:39,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:39:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-19 07:39:40,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-11-19 07:39:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 07:39:40,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:40,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910012936] [2023-11-19 07:39:40,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910012936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:40,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:40,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:39:40,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535151090] [2023-11-19 07:39:40,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:40,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:39:40,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:40,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:39:40,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:39:40,053 INFO L87 Difference]: Start difference. First operand 715 states and 921 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-11-19 07:39:40,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:40,266 INFO L93 Difference]: Finished difference Result 1327 states and 1730 transitions. [2023-11-19 07:39:40,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:39:40,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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 51 [2023-11-19 07:39:40,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:40,269 INFO L225 Difference]: With dead ends: 1327 [2023-11-19 07:39:40,269 INFO L226 Difference]: Without dead ends: 278 [2023-11-19 07:39:40,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:39:40,275 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 117 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:40,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 371 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:39:40,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2023-11-19 07:39:40,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 270. [2023-11-19 07:39:40,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 213 states have (on average 1.192488262910798) internal successors, (254), 227 states have internal predecessors, (254), 30 states have call successors, (30), 25 states have call predecessors, (30), 26 states have return successors, (38), 28 states have call predecessors, (38), 30 states have call successors, (38) [2023-11-19 07:39:40,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 322 transitions. [2023-11-19 07:39:40,303 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 322 transitions. Word has length 51 [2023-11-19 07:39:40,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:40,303 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 322 transitions. [2023-11-19 07:39:40,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 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) [2023-11-19 07:39:40,303 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 322 transitions. [2023-11-19 07:39:40,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 07:39:40,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:39:40,305 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:40,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:39:40,305 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:39:40,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:39:40,306 INFO L85 PathProgramCache]: Analyzing trace with hash -400361830, now seen corresponding path program 1 times [2023-11-19 07:39:40,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:39:40,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779696430] [2023-11-19 07:39:40,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:39:40,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:39:40,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 07:39:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-19 07:39:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-19 07:39:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-19 07:39:40,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:39:40,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:39:40,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:39:40,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779696430] [2023-11-19 07:39:40,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779696430] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:39:40,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:39:40,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-19 07:39:40,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519596066] [2023-11-19 07:39:40,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:39:40,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:39:40,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:39:40,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:39:40,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:39:40,453 INFO L87 Difference]: Start difference. First operand 270 states and 322 transitions. Second operand has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:39:40,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:39:40,907 INFO L93 Difference]: Finished difference Result 523 states and 631 transitions. [2023-11-19 07:39:40,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-19 07:39:40,908 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2023-11-19 07:39:40,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:39:40,908 INFO L225 Difference]: With dead ends: 523 [2023-11-19 07:39:40,909 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 07:39:40,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2023-11-19 07:39:40,911 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 199 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 07:39:40,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 283 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 07:39:40,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 07:39:40,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 07:39:40,912 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) [2023-11-19 07:39:40,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 07:39:40,912 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 54 [2023-11-19 07:39:40,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:39:40,913 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 07:39:40,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.090909090909091) internal successors, (45), 8 states have internal predecessors, (45), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:39:40,913 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 07:39:40,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 07:39:40,916 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 07:39:40,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:39:40,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 07:39:42,499 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 125 131) no Hoare annotation was computed. [2023-11-19 07:39:42,500 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 125 131) the Hoare annotation is: true [2023-11-19 07:39:42,500 INFO L899 garLoopResultBuilder]: For program point L402-1(lines 398 409) no Hoare annotation was computed. [2023-11-19 07:39:42,500 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 398 409) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse3 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~pumpRunning~0 1))) (or .cse0 .cse3 .cse1 .cse2) (or .cse3 .cse2 (= ~methaneLevelCritical~0 1) (not (= |old(~methaneLevelCritical~0)| 1))))) [2023-11-19 07:39:42,500 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 398 409) no Hoare annotation was computed. [2023-11-19 07:39:42,500 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 485) no Hoare annotation was computed. [2023-11-19 07:39:42,500 INFO L902 garLoopResultBuilder]: At program point L481-1(lines 481 485) the Hoare annotation is: true [2023-11-19 07:39:42,500 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 467 496) no Hoare annotation was computed. [2023-11-19 07:39:42,501 INFO L899 garLoopResultBuilder]: For program point L478(line 478) no Hoare annotation was computed. [2023-11-19 07:39:42,501 INFO L902 garLoopResultBuilder]: At program point L477-2(lines 477 491) the Hoare annotation is: true [2023-11-19 07:39:42,501 INFO L902 garLoopResultBuilder]: At program point L473(line 473) the Hoare annotation is: true [2023-11-19 07:39:42,501 INFO L899 garLoopResultBuilder]: For program point L473-1(line 473) no Hoare annotation was computed. [2023-11-19 07:39:42,501 INFO L899 garLoopResultBuilder]: For program point L492(lines 467 496) no Hoare annotation was computed. [2023-11-19 07:39:42,502 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 467 496) the Hoare annotation is: true [2023-11-19 07:39:42,502 INFO L899 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2023-11-19 07:39:42,502 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 410 418) the Hoare annotation is: true [2023-11-19 07:39:42,502 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 410 418) no Hoare annotation was computed. [2023-11-19 07:39:42,502 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 410 418) no Hoare annotation was computed. [2023-11-19 07:39:42,502 INFO L899 garLoopResultBuilder]: For program point L353(lines 353 366) no Hoare annotation was computed. [2023-11-19 07:39:42,503 INFO L899 garLoopResultBuilder]: For program point L353-1(lines 338 370) no Hoare annotation was computed. [2023-11-19 07:39:42,503 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2023-11-19 07:39:42,503 INFO L895 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 0)) (.cse7 (not (= 2 ~waterLevel~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (= 1 ~systemActive~0))) (let ((.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not .cse8)) (.cse0 (= |timeShift_isHighWaterSensorDry_#res#1| 0)) (.cse2 (not (= |timeShift_isHighWaterLevel_#res#1| 0))) (.cse9 (and .cse5 .cse7 .cse1)) (.cse3 (= ~pumpRunning~0 1))) (and (or (and .cse0 .cse1 .cse2 .cse3) .cse4 (and .cse5 .cse0 .cse1 .cse2) .cse6 (and .cse7 .cse8 .cse1 .cse3) .cse9 (not (= ~methaneLevelCritical~0 1))) (or .cse6 (not (= |old(~pumpRunning~0)| 1)) .cse3) (let ((.cse10 (= |timeShift_isMethaneAlarm_#res#1| 0))) (or .cse4 .cse6 (and .cse10 .cse0 .cse1 .cse2 .cse3) (not (= ~methaneLevelCritical~0 0)) .cse9 (and .cse7 .cse10 .cse8 .cse1 .cse3)))))) [2023-11-19 07:39:42,503 INFO L899 garLoopResultBuilder]: For program point L378-2(lines 374 385) no Hoare annotation was computed. [2023-11-19 07:39:42,504 INFO L899 garLoopResultBuilder]: For program point L345-1(line 345) no Hoare annotation was computed. [2023-11-19 07:39:42,504 INFO L895 garLoopResultBuilder]: At program point L147(line 147) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (and (= ~pumpRunning~0 0) (not (= 2 ~waterLevel~0)) (= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 1))) (or .cse1 (not (= |old(~pumpRunning~0)| 1))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2023-11-19 07:39:42,504 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 101 124) no Hoare annotation was computed. [2023-11-19 07:39:42,504 INFO L895 garLoopResultBuilder]: At program point L197(line 197) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse5 (not (= |timeShift_processEnvironment_~tmp~0#1| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (and .cse4 .cse5 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse6 (not (= |timeShift_isHighWaterLevel_#res#1| 0)))) (.cse3 (and .cse4 (not (= 2 ~waterLevel~0)) .cse5 .cse6))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1))) (or .cse1 .cse0 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse1 .cse0 .cse2 .cse3 (not (= ~methaneLevelCritical~0 1)))))) [2023-11-19 07:39:42,504 INFO L899 garLoopResultBuilder]: For program point L197-1(line 197) no Hoare annotation was computed. [2023-11-19 07:39:42,505 INFO L899 garLoopResultBuilder]: For program point L932(line 932) no Hoare annotation was computed. [2023-11-19 07:39:42,505 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 451 464) no Hoare annotation was computed. [2023-11-19 07:39:42,505 INFO L895 garLoopResultBuilder]: At program point L152(line 152) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1))) (or .cse1 (not (= |old(~pumpRunning~0)| 1)) (= ~pumpRunning~0 1)) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2023-11-19 07:39:42,505 INFO L899 garLoopResultBuilder]: For program point L152-1(lines 133 157) no Hoare annotation was computed. [2023-11-19 07:39:42,505 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 442 450) no Hoare annotation was computed. [2023-11-19 07:39:42,505 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 367) no Hoare annotation was computed. [2023-11-19 07:39:42,506 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 112 118) no Hoare annotation was computed. [2023-11-19 07:39:42,506 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 180) no Hoare annotation was computed. [2023-11-19 07:39:42,506 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 149) no Hoare annotation was computed. [2023-11-19 07:39:42,506 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__highWaterSensor_returnLabel#1(lines 158 165) no Hoare annotation was computed. [2023-11-19 07:39:42,506 INFO L899 garLoopResultBuilder]: For program point L174-2(lines 167 183) no Hoare annotation was computed. [2023-11-19 07:39:42,506 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 928 935) no Hoare annotation was computed. [2023-11-19 07:39:42,507 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 101 124) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) .cse3)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 1))) (or .cse2 (not (= |old(~pumpRunning~0)| 1)) (and .cse3 (= ~pumpRunning~0 1)))))) [2023-11-19 07:39:42,507 INFO L899 garLoopResultBuilder]: For program point L137(lines 137 154) no Hoare annotation was computed. [2023-11-19 07:39:42,507 INFO L899 garLoopResultBuilder]: For program point L455(lines 455 461) no Hoare annotation was computed. [2023-11-19 07:39:42,507 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 261) no Hoare annotation was computed. [2023-11-19 07:39:42,507 INFO L899 garLoopResultBuilder]: For program point L257-2(lines 257 261) no Hoare annotation was computed. [2023-11-19 07:39:42,507 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 248 266) no Hoare annotation was computed. [2023-11-19 07:39:42,508 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 101 124) no Hoare annotation was computed. [2023-11-19 07:39:42,508 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarm_returnLabel#1(lines 192 202) no Hoare annotation was computed. [2023-11-19 07:39:42,508 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 203 211) no Hoare annotation was computed. [2023-11-19 07:39:42,508 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 932) no Hoare annotation was computed. [2023-11-19 07:39:42,508 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 104 123) no Hoare annotation was computed. [2023-11-19 07:39:42,508 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 363) no Hoare annotation was computed. [2023-11-19 07:39:42,509 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 287) no Hoare annotation was computed. [2023-11-19 07:39:42,509 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 528 537) no Hoare annotation was computed. [2023-11-19 07:39:42,509 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 64 70) no Hoare annotation was computed. [2023-11-19 07:39:42,509 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 538 560) no Hoare annotation was computed. [2023-11-19 07:39:42,509 INFO L899 garLoopResultBuilder]: For program point L548(lines 548 555) no Hoare annotation was computed. [2023-11-19 07:39:42,509 INFO L899 garLoopResultBuilder]: For program point L548-2(lines 548 555) no Hoare annotation was computed. [2023-11-19 07:39:42,509 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 07:39:42,510 INFO L899 garLoopResultBuilder]: For program point L317(lines 317 321) no Hoare annotation was computed. [2023-11-19 07:39:42,510 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 07:39:42,510 INFO L895 garLoopResultBuilder]: At program point L317-2(lines 311 322) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2023-11-19 07:39:42,510 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 307) no Hoare annotation was computed. [2023-11-19 07:39:42,510 INFO L899 garLoopResultBuilder]: For program point L301-1(lines 301 307) no Hoare annotation was computed. [2023-11-19 07:39:42,510 INFO L899 garLoopResultBuilder]: For program point L330(lines 271 334) no Hoare annotation was computed. [2023-11-19 07:39:42,511 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 521 527) no Hoare annotation was computed. [2023-11-19 07:39:42,511 INFO L895 garLoopResultBuilder]: At program point L293(line 293) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) (not (= 2 ~waterLevel~0)) .cse1 .cse2))) [2023-11-19 07:39:42,511 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 07:39:42,511 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 07:39:42,511 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 71 77) no Hoare annotation was computed. [2023-11-19 07:39:42,511 INFO L895 garLoopResultBuilder]: At program point L327(lines 280 328) the Hoare annotation is: false [2023-11-19 07:39:42,512 INFO L899 garLoopResultBuilder]: For program point L282(lines 281 326) no Hoare annotation was computed. [2023-11-19 07:39:42,512 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 322) no Hoare annotation was computed. [2023-11-19 07:39:42,512 INFO L895 garLoopResultBuilder]: At program point L303(line 303) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2023-11-19 07:39:42,512 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 78 86) no Hoare annotation was computed. [2023-11-19 07:39:42,512 INFO L895 garLoopResultBuilder]: At program point L324(lines 281 326) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) (not (= 2 ~waterLevel~0)) .cse1 .cse2))) [2023-11-19 07:39:42,513 INFO L899 garLoopResultBuilder]: For program point L291(lines 291 297) no Hoare annotation was computed. [2023-11-19 07:39:42,513 INFO L899 garLoopResultBuilder]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2023-11-19 07:39:42,513 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 386 397) no Hoare annotation was computed. [2023-11-19 07:39:42,513 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 386 397) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2 (= |old(~waterLevel~0)| 2)) (or .cse1 (not (= ~pumpRunning~0 1)) .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2))) [2023-11-19 07:39:42,513 INFO L899 garLoopResultBuilder]: For program point L390-1(lines 386 397) no Hoare annotation was computed. [2023-11-19 07:39:42,516 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:39:42,518 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 07:39:42,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:39:42 BoogieIcfgContainer [2023-11-19 07:39:42,532 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 07:39:42,532 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 07:39:42,533 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 07:39:42,533 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 07:39:42,534 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:36" (3/4) ... [2023-11-19 07:39:42,536 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 07:39:42,540 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 07:39:42,540 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 07:39:42,540 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 07:39:42,541 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2023-11-19 07:39:42,541 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 07:39:42,541 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 07:39:42,549 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-19 07:39:42,549 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 07:39:42,550 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 07:39:42,551 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:39:42,551 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 07:39:42,672 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 07:39:42,672 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 07:39:42,672 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 07:39:42,673 INFO L158 Benchmark]: Toolchain (without parser) took 7767.87ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 97.1MB in the beginning and 106.8MB in the end (delta: -9.7MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,673 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 100.7MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 07:39:42,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.08ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 77.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.10ms. Allocated memory is still 142.6MB. Free memory was 77.8MB in the beginning and 75.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,674 INFO L158 Benchmark]: Boogie Preprocessor took 33.88ms. Allocated memory is still 142.6MB. Free memory was 75.7MB in the beginning and 74.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,675 INFO L158 Benchmark]: RCFGBuilder took 591.87ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 113.2MB in the end (delta: -39.1MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,676 INFO L158 Benchmark]: TraceAbstraction took 6448.79ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 112.5MB in the beginning and 114.1MB in the end (delta: -1.7MB). Peak memory consumption was 113.4MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,676 INFO L158 Benchmark]: Witness Printer took 139.89ms. Allocated memory is still 195.0MB. Free memory was 114.1MB in the beginning and 106.8MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 07:39:42,679 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 100.7MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 476.08ms. Allocated memory is still 142.6MB. Free memory was 96.7MB in the beginning and 77.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.10ms. Allocated memory is still 142.6MB. Free memory was 77.8MB in the beginning and 75.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.88ms. Allocated memory is still 142.6MB. Free memory was 75.7MB in the beginning and 74.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.87ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 113.2MB in the end (delta: -39.1MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. * TraceAbstraction took 6448.79ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 112.5MB in the beginning and 114.1MB in the end (delta: -1.7MB). Peak memory consumption was 113.4MB. Max. memory is 16.1GB. * Witness Printer took 139.89ms. Allocated memory is still 195.0MB. Free memory was 114.1MB in the beginning and 106.8MB 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] - GenericResultAtLocation [Line: 267]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [267] - GenericResultAtLocation [Line: 335]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [335] - GenericResultAtLocation [Line: 371]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] - GenericResultAtLocation [Line: 465]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [465] - GenericResultAtLocation [Line: 561]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [561] - GenericResultAtLocation [Line: 927]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] * 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: 932]: 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, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1037 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1007 mSDsluCounter, 2868 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1979 mSDsCounter, 148 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 973 IncrementalHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 148 mSolverCounterUnsat, 889 mSDtfsCounter, 973 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 196 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=715occurred in iteration=9, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 180 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 575 PreInvPairs, 679 NumberOfFragments, 653 HoareAnnotationTreeSize, 575 FomulaSimplifications, 680 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 18 FomulaSimplificationsInter, 3488 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 485 ConstructedInterpolants, 0 QuantifiedInterpolants, 984 SizeOfPredicates, 4 NumberOfNonLiveVariables, 221 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 12 InterpolantComputations, 11 PerfectInterpolantSequences, 10/12 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: 477]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) || (((1 == systemActive) && (splverifierCounter == 0)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && !((2 == waterLevel))) && (1 == systemActive)) && (splverifierCounter == 0))) RESULT: Ultimate proved your program to be correct! [2023-11-19 07:39:42,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cc653a3b-ae71-4af3-9091-5fc4eea6081a/bin/uautomizer-verify-uCwYo4JHxu/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