./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl --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 debcf50bf3bb3961401c62ca4b7217ea7cc93038f750143121614e56b550164d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:13:01,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:13:01,894 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:13:01,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:13:01,905 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:13:01,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:13:01,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:13:01,950 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:13:01,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:13:01,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:13:01,959 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:13:01,959 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:13:01,960 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:13:01,962 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:13:01,962 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:13:01,963 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:13:01,963 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:13:01,963 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:13:01,964 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:13:01,964 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:13:01,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:13:01,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:13:01,966 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:13:01,966 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:13:01,967 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:13:01,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:13:01,968 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:13:01,968 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:13:01,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:13:01,969 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:13:01,971 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:13:01,971 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:13:01,971 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:13:01,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:13:01,972 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:13:01,972 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:13:01,972 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:13:01,972 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:13:01,973 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:13:01,973 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_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> debcf50bf3bb3961401c62ca4b7217ea7cc93038f750143121614e56b550164d [2023-11-12 02:13:02,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:13:02,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:13:02,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:13:02,282 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:13:02,283 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:13:02,284 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2023-11-12 02:13:05,510 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:13:05,846 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:13:05,847 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2023-11-12 02:13:05,862 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/data/a7b44f77e/fb2439baa4ce4e87b2bf66ed43928036/FLAG6a7c2234e [2023-11-12 02:13:05,877 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/data/a7b44f77e/fb2439baa4ce4e87b2bf66ed43928036 [2023-11-12 02:13:05,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:13:05,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:13:05,883 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:13:05,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:13:05,889 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:13:05,890 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:13:05" (1/1) ... [2023-11-12 02:13:05,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4655fccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:05, skipping insertion in model container [2023-11-12 02:13:05,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:13:05" (1/1) ... [2023-11-12 02:13:05,961 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:13:06,231 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_2cf8f87e-30fc-47fb-8ec0-413e451663a6/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2023-11-12 02:13:06,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:13:06,293 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:13:06,306 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2023-11-12 02:13:06,309 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [415] [2023-11-12 02:13:06,309 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [444] [2023-11-12 02:13:06,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] [2023-11-12 02:13:06,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [563] [2023-11-12 02:13:06,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [665] [2023-11-12 02:13:06,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [700] [2023-11-12 02:13:06,311 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [926] [2023-11-12 02:13:06,396 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_2cf8f87e-30fc-47fb-8ec0-413e451663a6/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11718,11731] [2023-11-12 02:13:06,437 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:13:06,465 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:13:06,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06 WrapperNode [2023-11-12 02:13:06,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:13:06,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:13:06,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:13:06,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:13:06,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (1/1) ... [2023-11-12 02:13:06,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (1/1) ... [2023-11-12 02:13:06,520 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 230 [2023-11-12 02:13:06,521 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:13:06,522 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:13:06,522 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:13:06,522 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:13:06,532 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (1/1) ... [2023-11-12 02:13:06,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (1/1) ... [2023-11-12 02:13:06,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (1/1) ... [2023-11-12 02:13:06,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (1/1) ... [2023-11-12 02:13:06,542 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (1/1) ... [2023-11-12 02:13:06,546 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (1/1) ... [2023-11-12 02:13:06,548 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (1/1) ... [2023-11-12 02:13:06,550 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (1/1) ... [2023-11-12 02:13:06,553 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:13:06,554 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:13:06,555 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:13:06,555 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:13:06,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (1/1) ... [2023-11-12 02:13:06,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:13:06,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:13:06,621 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:13:06,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:13:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:13:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-12 02:13:06,664 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-12 02:13:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-12 02:13:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-12 02:13:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-12 02:13:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-12 02:13:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:13:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:13:06,666 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-12 02:13:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-12 02:13:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:13:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-12 02:13:06,667 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-12 02:13:06,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:13:06,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:13:06,763 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:13:06,765 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:13:07,134 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:13:07,143 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:13:07,156 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 02:13:07,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:13:07 BoogieIcfgContainer [2023-11-12 02:13:07,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:13:07,163 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:13:07,163 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:13:07,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:13:07,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:13:05" (1/3) ... [2023-11-12 02:13:07,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152631d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:13:07, skipping insertion in model container [2023-11-12 02:13:07,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:13:06" (2/3) ... [2023-11-12 02:13:07,173 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@152631d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:13:07, skipping insertion in model container [2023-11-12 02:13:07,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:13:07" (3/3) ... [2023-11-12 02:13:07,175 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2023-11-12 02:13:07,201 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:13:07,202 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:13:07,277 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:13:07,285 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;@2678a442, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:13:07,285 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:13:07,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-12 02:13:07,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 02:13:07,302 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:07,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:07,303 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:07,309 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:07,310 INFO L85 PathProgramCache]: Analyzing trace with hash -644164364, now seen corresponding path program 1 times [2023-11-12 02:13:07,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:07,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671692181] [2023-11-12 02:13:07,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:07,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:07,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:07,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:07,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671692181] [2023-11-12 02:13:07,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671692181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:07,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:07,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:13:07,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553418599] [2023-11-12 02:13:07,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:07,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:13:07,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:07,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:13:07,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:13:07,543 INFO L87 Difference]: Start difference. First operand has 87 states, 69 states have (on average 1.391304347826087) internal successors, (96), 77 states have internal predecessors, (96), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:13:07,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:07,591 INFO L93 Difference]: Finished difference Result 166 states and 227 transitions. [2023-11-12 02:13:07,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:13:07,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-12 02:13:07,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:07,604 INFO L225 Difference]: With dead ends: 166 [2023-11-12 02:13:07,604 INFO L226 Difference]: Without dead ends: 78 [2023-11-12 02:13:07,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:13:07,613 INFO L413 NwaCegarLoop]: 110 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, 110 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 [2023-11-12 02:13:07,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:13:07,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-12 02:13:07,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-12 02:13:07,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 62 states have (on average 1.3225806451612903) internal successors, (82), 69 states have internal predecessors, (82), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:13:07,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2023-11-12 02:13:07,666 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 19 [2023-11-12 02:13:07,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:07,667 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2023-11-12 02:13:07,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:13:07,668 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2023-11-12 02:13:07,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:13:07,670 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:07,671 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] [2023-11-12 02:13:07,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:13:07,671 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:07,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:07,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1321297108, now seen corresponding path program 1 times [2023-11-12 02:13:07,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:07,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114710491] [2023-11-12 02:13:07,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:07,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:07,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:07,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:07,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114710491] [2023-11-12 02:13:07,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114710491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:07,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:07,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:13:07,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168218732] [2023-11-12 02:13:07,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:07,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:13:07,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:07,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:13:07,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:13:07,825 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:13:07,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:07,843 INFO L93 Difference]: Finished difference Result 121 states and 157 transitions. [2023-11-12 02:13:07,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:13:07,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-12 02:13:07,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:07,846 INFO L225 Difference]: With dead ends: 121 [2023-11-12 02:13:07,847 INFO L226 Difference]: Without dead ends: 69 [2023-11-12 02:13:07,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:13:07,850 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 13 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 159 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 [2023-11-12 02:13:07,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 159 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:13:07,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-12 02:13:07,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-12 02:13:07,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 63 states have internal predecessors, (75), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:13:07,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 89 transitions. [2023-11-12 02:13:07,865 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 89 transitions. Word has length 20 [2023-11-12 02:13:07,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:07,865 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 89 transitions. [2023-11-12 02:13:07,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:13:07,866 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 89 transitions. [2023-11-12 02:13:07,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 02:13:07,867 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:07,868 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] [2023-11-12 02:13:07,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:13:07,868 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:07,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:07,869 INFO L85 PathProgramCache]: Analyzing trace with hash 2055869510, now seen corresponding path program 1 times [2023-11-12 02:13:07,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:07,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74486636] [2023-11-12 02:13:07,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:07,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:07,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:07,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:07,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74486636] [2023-11-12 02:13:07,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74486636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:07,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:07,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:13:07,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836382373] [2023-11-12 02:13:07,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:07,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:13:07,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:07,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:13:07,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:13:07,988 INFO L87 Difference]: Start difference. First operand 69 states and 89 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:13:08,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:08,008 INFO L93 Difference]: Finished difference Result 131 states and 172 transitions. [2023-11-12 02:13:08,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:13:08,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-11-12 02:13:08,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:08,010 INFO L225 Difference]: With dead ends: 131 [2023-11-12 02:13:08,011 INFO L226 Difference]: Without dead ends: 69 [2023-11-12 02:13:08,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:13:08,013 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 69 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:08,014 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 87 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:13:08,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-11-12 02:13:08,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-11-12 02:13:08,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.3214285714285714) internal successors, (74), 63 states have internal predecessors, (74), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 02:13:08,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 88 transitions. [2023-11-12 02:13:08,028 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 88 transitions. Word has length 25 [2023-11-12 02:13:08,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:08,028 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 88 transitions. [2023-11-12 02:13:08,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:13:08,029 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 88 transitions. [2023-11-12 02:13:08,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-12 02:13:08,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:08,031 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] [2023-11-12 02:13:08,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:13:08,031 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:08,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:08,032 INFO L85 PathProgramCache]: Analyzing trace with hash 86695610, now seen corresponding path program 1 times [2023-11-12 02:13:08,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:08,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622338892] [2023-11-12 02:13:08,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:08,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:08,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:13:08,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:08,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:08,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:08,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:08,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622338892] [2023-11-12 02:13:08,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622338892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:08,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:08,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:13:08,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827872231] [2023-11-12 02:13:08,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:08,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:13:08,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:08,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:13:08,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:13:08,250 INFO L87 Difference]: Start difference. First operand 69 states and 88 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:13:08,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:08,513 INFO L93 Difference]: Finished difference Result 195 states and 249 transitions. [2023-11-12 02:13:08,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:13:08,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2023-11-12 02:13:08,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:08,517 INFO L225 Difference]: With dead ends: 195 [2023-11-12 02:13:08,520 INFO L226 Difference]: Without dead ends: 133 [2023-11-12 02:13:08,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:13:08,525 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 159 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:08,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 241 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:13:08,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-12 02:13:08,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 127. [2023-11-12 02:13:08,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 111 states have internal predecessors, (131), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2023-11-12 02:13:08,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 156 transitions. [2023-11-12 02:13:08,587 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 156 transitions. Word has length 35 [2023-11-12 02:13:08,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:08,588 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 156 transitions. [2023-11-12 02:13:08,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:13:08,589 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 156 transitions. [2023-11-12 02:13:08,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 02:13:08,590 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:08,591 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] [2023-11-12 02:13:08,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:13:08,591 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:08,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:08,592 INFO L85 PathProgramCache]: Analyzing trace with hash 585874736, now seen corresponding path program 1 times [2023-11-12 02:13:08,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:08,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827400897] [2023-11-12 02:13:08,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:08,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:08,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:13:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:08,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:13:08,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:08,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:08,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827400897] [2023-11-12 02:13:08,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827400897] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:08,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:08,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:13:08,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427657019] [2023-11-12 02:13:08,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:08,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:13:08,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:08,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:13:08,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:13:08,878 INFO L87 Difference]: Start difference. First operand 127 states and 156 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:13:09,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:09,094 INFO L93 Difference]: Finished difference Result 352 states and 455 transitions. [2023-11-12 02:13:09,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:13:09,095 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2023-11-12 02:13:09,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:09,098 INFO L225 Difference]: With dead ends: 352 [2023-11-12 02:13:09,098 INFO L226 Difference]: Without dead ends: 232 [2023-11-12 02:13:09,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:13:09,101 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 170 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:09,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 310 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:13:09,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-11-12 02:13:09,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 208. [2023-11-12 02:13:09,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 169 states have (on average 1.272189349112426) internal successors, (215), 180 states have internal predecessors, (215), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (28), 18 states have call predecessors, (28), 18 states have call successors, (28) [2023-11-12 02:13:09,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 261 transitions. [2023-11-12 02:13:09,133 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 261 transitions. Word has length 41 [2023-11-12 02:13:09,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:09,133 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 261 transitions. [2023-11-12 02:13:09,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:13:09,134 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 261 transitions. [2023-11-12 02:13:09,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 02:13:09,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:09,136 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] [2023-11-12 02:13:09,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:13:09,136 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:09,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:09,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1714947854, now seen corresponding path program 1 times [2023-11-12 02:13:09,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:09,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709810633] [2023-11-12 02:13:09,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:09,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:09,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:09,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:13:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:09,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:13:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:09,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:09,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709810633] [2023-11-12 02:13:09,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709810633] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:09,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:09,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:13:09,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028764046] [2023-11-12 02:13:09,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:09,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:13:09,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:09,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:13:09,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:13:09,325 INFO L87 Difference]: Start difference. First operand 208 states and 261 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:13:09,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:09,737 INFO L93 Difference]: Finished difference Result 594 states and 775 transitions. [2023-11-12 02:13:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-12 02:13:09,738 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2023-11-12 02:13:09,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:09,751 INFO L225 Difference]: With dead ends: 594 [2023-11-12 02:13:09,751 INFO L226 Difference]: Without dead ends: 393 [2023-11-12 02:13:09,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:13:09,760 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 293 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:09,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 375 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:13:09,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-11-12 02:13:09,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 310. [2023-11-12 02:13:09,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 250 states have (on average 1.24) internal successors, (310), 268 states have internal predecessors, (310), 26 states have call successors, (26), 26 states have call predecessors, (26), 33 states have return successors, (51), 29 states have call predecessors, (51), 26 states have call successors, (51) [2023-11-12 02:13:09,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 387 transitions. [2023-11-12 02:13:09,835 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 387 transitions. Word has length 41 [2023-11-12 02:13:09,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:09,836 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 387 transitions. [2023-11-12 02:13:09,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:13:09,836 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 387 transitions. [2023-11-12 02:13:09,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-12 02:13:09,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:09,844 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] [2023-11-12 02:13:09,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:13:09,845 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:09,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:09,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1598724404, now seen corresponding path program 1 times [2023-11-12 02:13:09,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:09,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415862467] [2023-11-12 02:13:09,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:09,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:09,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:09,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:13:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:09,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:13:10,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:10,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:10,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415862467] [2023-11-12 02:13:10,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415862467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:10,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:10,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:13:10,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585948762] [2023-11-12 02:13:10,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:10,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:13:10,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:10,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:13:10,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:13:10,006 INFO L87 Difference]: Start difference. First operand 310 states and 387 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:13:10,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:10,406 INFO L93 Difference]: Finished difference Result 356 states and 440 transitions. [2023-11-12 02:13:10,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-11-12 02:13:10,406 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2023-11-12 02:13:10,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:10,410 INFO L225 Difference]: With dead ends: 356 [2023-11-12 02:13:10,411 INFO L226 Difference]: Without dead ends: 354 [2023-11-12 02:13:10,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2023-11-12 02:13:10,415 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 186 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:10,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 335 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:13:10,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-11-12 02:13:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 338. [2023-11-12 02:13:10,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 275 states have (on average 1.229090909090909) internal successors, (338), 295 states have internal predecessors, (338), 27 states have call successors, (27), 26 states have call predecessors, (27), 35 states have return successors, (54), 30 states have call predecessors, (54), 27 states have call successors, (54) [2023-11-12 02:13:10,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 419 transitions. [2023-11-12 02:13:10,466 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 419 transitions. Word has length 45 [2023-11-12 02:13:10,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:10,466 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 419 transitions. [2023-11-12 02:13:10,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 02:13:10,467 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 419 transitions. [2023-11-12 02:13:10,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 02:13:10,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:10,470 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, 1, 1] [2023-11-12 02:13:10,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:13:10,470 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:10,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:10,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1292286815, now seen corresponding path program 1 times [2023-11-12 02:13:10,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:10,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168989218] [2023-11-12 02:13:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:10,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:10,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:13:10,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:10,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:10,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168989218] [2023-11-12 02:13:10,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168989218] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:10,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:10,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-12 02:13:10,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575447689] [2023-11-12 02:13:10,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:10,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:13:10,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:10,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:13:10,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:13:10,600 INFO L87 Difference]: Start difference. First operand 338 states and 419 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:13:10,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:10,843 INFO L93 Difference]: Finished difference Result 697 states and 882 transitions. [2023-11-12 02:13:10,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:13:10,843 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2023-11-12 02:13:10,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:10,846 INFO L225 Difference]: With dead ends: 697 [2023-11-12 02:13:10,847 INFO L226 Difference]: Without dead ends: 366 [2023-11-12 02:13:10,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:13:10,849 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 135 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:10,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 321 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:13:10,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2023-11-12 02:13:10,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 350. [2023-11-12 02:13:10,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 285 states have (on average 1.2210526315789474) internal successors, (348), 306 states have internal predecessors, (348), 28 states have call successors, (28), 26 states have call predecessors, (28), 36 states have return successors, (56), 31 states have call predecessors, (56), 28 states have call successors, (56) [2023-11-12 02:13:10,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 432 transitions. [2023-11-12 02:13:10,884 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 432 transitions. Word has length 47 [2023-11-12 02:13:10,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:10,884 INFO L495 AbstractCegarLoop]: Abstraction has 350 states and 432 transitions. [2023-11-12 02:13:10,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:13:10,885 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 432 transitions. [2023-11-12 02:13:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 02:13:10,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:10,886 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, 1, 1] [2023-11-12 02:13:10,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-12 02:13:10,886 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:10,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:10,887 INFO L85 PathProgramCache]: Analyzing trace with hash -701857891, now seen corresponding path program 1 times [2023-11-12 02:13:10,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:10,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772838219] [2023-11-12 02:13:10,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:10,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:10,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-12 02:13:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:10,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:10,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:10,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772838219] [2023-11-12 02:13:10,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772838219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:10,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:10,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:13:10,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262541479] [2023-11-12 02:13:10,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:10,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:13:10,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:10,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:13:10,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:13:10,975 INFO L87 Difference]: Start difference. First operand 350 states and 432 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:13:11,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:11,251 INFO L93 Difference]: Finished difference Result 638 states and 799 transitions. [2023-11-12 02:13:11,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:13:11,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 47 [2023-11-12 02:13:11,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:11,254 INFO L225 Difference]: With dead ends: 638 [2023-11-12 02:13:11,254 INFO L226 Difference]: Without dead ends: 295 [2023-11-12 02:13:11,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:13:11,257 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 139 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:11,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 255 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:13:11,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2023-11-12 02:13:11,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 293. [2023-11-12 02:13:11,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 236 states have (on average 1.2033898305084745) internal successors, (284), 253 states have internal predecessors, (284), 25 states have call successors, (25), 23 states have call predecessors, (25), 31 states have return successors, (45), 27 states have call predecessors, (45), 25 states have call successors, (45) [2023-11-12 02:13:11,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 354 transitions. [2023-11-12 02:13:11,287 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 354 transitions. Word has length 47 [2023-11-12 02:13:11,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:11,288 INFO L495 AbstractCegarLoop]: Abstraction has 293 states and 354 transitions. [2023-11-12 02:13:11,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:13:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 354 transitions. [2023-11-12 02:13:11,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-12 02:13:11,290 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:11,290 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:11,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:13:11,290 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:11,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:11,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2145897221, now seen corresponding path program 1 times [2023-11-12 02:13:11,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:11,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973073074] [2023-11-12 02:13:11,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:11,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:11,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:11,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:13:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:11,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:13:11,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:11,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-12 02:13:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:11,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:11,567 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:13:11,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:11,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973073074] [2023-11-12 02:13:11,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973073074] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:13:11,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [339058600] [2023-11-12 02:13:11,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:11,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:13:11,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:13:11,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:13:11,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:13:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:11,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-12 02:13:11,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:13:11,891 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:13:11,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:13:12,046 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:13:12,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [339058600] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:13:12,047 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:13:12,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2023-11-12 02:13:12,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376162484] [2023-11-12 02:13:12,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:13:12,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-12 02:13:12,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:12,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-12 02:13:12,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:13:12,049 INFO L87 Difference]: Start difference. First operand 293 states and 354 transitions. Second operand has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:13:12,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:12,603 INFO L93 Difference]: Finished difference Result 631 states and 815 transitions. [2023-11-12 02:13:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-12 02:13:12,604 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 82 [2023-11-12 02:13:12,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:12,608 INFO L225 Difference]: With dead ends: 631 [2023-11-12 02:13:12,608 INFO L226 Difference]: Without dead ends: 386 [2023-11-12 02:13:12,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 171 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2023-11-12 02:13:12,611 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 227 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:12,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 506 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-12 02:13:12,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2023-11-12 02:13:12,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 353. [2023-11-12 02:13:12,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 281 states have (on average 1.2135231316725978) internal successors, (341), 300 states have internal predecessors, (341), 34 states have call successors, (34), 33 states have call predecessors, (34), 37 states have return successors, (61), 32 states have call predecessors, (61), 34 states have call successors, (61) [2023-11-12 02:13:12,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 436 transitions. [2023-11-12 02:13:12,668 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 436 transitions. Word has length 82 [2023-11-12 02:13:12,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:12,669 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 436 transitions. [2023-11-12 02:13:12,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-12 02:13:12,670 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 436 transitions. [2023-11-12 02:13:12,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-12 02:13:12,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:12,672 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:12,685 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:13:12,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-12 02:13:12,880 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:12,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:12,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1100274715, now seen corresponding path program 2 times [2023-11-12 02:13:12,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:12,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853663424] [2023-11-12 02:13:12,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:12,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:13,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:13,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:13:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:13,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:13:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:13,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-12 02:13:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:13,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:13:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:13,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:13,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-12 02:13:13,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:13,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:13,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:13,316 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 54 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-12 02:13:13,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:13,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853663424] [2023-11-12 02:13:13,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853663424] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:13:13,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931773041] [2023-11-12 02:13:13,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:13:13,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:13:13,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:13:13,319 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:13:13,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:13:13,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 02:13:13,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:13:13,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-12 02:13:13,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:13:13,627 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-12 02:13:13,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:13:13,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931773041] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:13,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:13:13,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-11-12 02:13:13,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815246054] [2023-11-12 02:13:13,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:13,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:13:13,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:13,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:13:13,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:13:13,630 INFO L87 Difference]: Start difference. First operand 353 states and 436 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-12 02:13:13,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:13,968 INFO L93 Difference]: Finished difference Result 937 states and 1200 transitions. [2023-11-12 02:13:13,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:13:13,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 117 [2023-11-12 02:13:13,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:13,973 INFO L225 Difference]: With dead ends: 937 [2023-11-12 02:13:13,974 INFO L226 Difference]: Without dead ends: 631 [2023-11-12 02:13:13,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2023-11-12 02:13:13,976 INFO L413 NwaCegarLoop]: 131 mSDtfsCounter, 152 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 547 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:13,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 547 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:13:13,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2023-11-12 02:13:14,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 570. [2023-11-12 02:13:14,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 455 states have (on average 1.2065934065934065) internal successors, (549), 481 states have internal predecessors, (549), 55 states have call successors, (55), 54 states have call predecessors, (55), 59 states have return successors, (96), 51 states have call predecessors, (96), 55 states have call successors, (96) [2023-11-12 02:13:14,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 700 transitions. [2023-11-12 02:13:14,037 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 700 transitions. Word has length 117 [2023-11-12 02:13:14,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:14,037 INFO L495 AbstractCegarLoop]: Abstraction has 570 states and 700 transitions. [2023-11-12 02:13:14,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-12 02:13:14,038 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 700 transitions. [2023-11-12 02:13:14,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-12 02:13:14,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:13:14,045 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:14,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:13:14,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-12 02:13:14,251 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:13:14,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:13:14,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1976293721, now seen corresponding path program 1 times [2023-11-12 02:13:14,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:13:14,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197346233] [2023-11-12 02:13:14,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:13:14,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:13:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:14,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-12 02:13:14,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:14,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-12 02:13:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:14,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-12 02:13:14,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:14,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-12 02:13:14,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:14,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-12 02:13:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:14,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:14,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-12 02:13:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:14,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:13:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:13:14,449 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-12 02:13:14,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:13:14,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197346233] [2023-11-12 02:13:14,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197346233] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:14,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:14,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-12 02:13:14,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319741142] [2023-11-12 02:13:14,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:14,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-12 02:13:14,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:13:14,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-12 02:13:14,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:13:14,452 INFO L87 Difference]: Start difference. First operand 570 states and 700 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:13:14,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:14,691 INFO L93 Difference]: Finished difference Result 783 states and 951 transitions. [2023-11-12 02:13:14,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 02:13:14,692 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 117 [2023-11-12 02:13:14,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:14,692 INFO L225 Difference]: With dead ends: 783 [2023-11-12 02:13:14,692 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:13:14,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-12 02:13:14,696 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 106 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:14,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 269 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:13:14,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:13:14,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:13:14,697 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) [2023-11-12 02:13:14,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:13:14,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 117 [2023-11-12 02:13:14,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:14,699 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:13:14,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-12 02:13:14,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:13:14,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:13:14,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:13:14,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:13:14,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 02:13:15,448 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 731 737) no Hoare annotation was computed. [2023-11-12 02:13:15,449 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 731 737) the Hoare annotation is: true [2023-11-12 02:13:15,449 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 487 498) no Hoare annotation was computed. [2023-11-12 02:13:15,449 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 487 498) the Hoare annotation is: true [2023-11-12 02:13:15,449 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 487 498) no Hoare annotation was computed. [2023-11-12 02:13:15,449 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 554 562) no Hoare annotation was computed. [2023-11-12 02:13:15,449 INFO L895 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2)) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0))) [2023-11-12 02:13:15,450 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 707 730) no Hoare annotation was computed. [2023-11-12 02:13:15,450 INFO L899 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2023-11-12 02:13:15,450 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 531 539) no Hoare annotation was computed. [2023-11-12 02:13:15,450 INFO L895 garLoopResultBuilder]: At program point L784(line 784) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1) (or (not .cse1) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0))) [2023-11-12 02:13:15,450 INFO L899 garLoopResultBuilder]: For program point L784-1(lines 765 789) no Hoare annotation was computed. [2023-11-12 02:13:15,450 INFO L899 garLoopResultBuilder]: For program point L718-1(lines 718 724) no Hoare annotation was computed. [2023-11-12 02:13:15,450 INFO L899 garLoopResultBuilder]: For program point L908(lines 908 912) no Hoare annotation was computed. [2023-11-12 02:13:15,451 INFO L899 garLoopResultBuilder]: For program point L908-2(lines 908 912) no Hoare annotation was computed. [2023-11-12 02:13:15,451 INFO L899 garLoopResultBuilder]: For program point L467(lines 467 471) no Hoare annotation was computed. [2023-11-12 02:13:15,451 INFO L899 garLoopResultBuilder]: For program point L467-2(lines 463 474) no Hoare annotation was computed. [2023-11-12 02:13:15,451 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 445 452) no Hoare annotation was computed. [2023-11-12 02:13:15,451 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 707 730) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) .cse1) .cse0))) [2023-11-12 02:13:15,451 INFO L899 garLoopResultBuilder]: For program point L711-1(lines 710 729) no Hoare annotation was computed. [2023-11-12 02:13:15,451 INFO L899 garLoopResultBuilder]: For program point L773(lines 773 781) no Hoare annotation was computed. [2023-11-12 02:13:15,451 INFO L899 garLoopResultBuilder]: For program point L769(lines 769 786) no Hoare annotation was computed. [2023-11-12 02:13:15,452 INFO L899 garLoopResultBuilder]: For program point deactivatePump_returnLabel#1(lines 816 823) no Hoare annotation was computed. [2023-11-12 02:13:15,452 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 899 917) no Hoare annotation was computed. [2023-11-12 02:13:15,452 INFO L899 garLoopResultBuilder]: For program point L431(lines 431 437) no Hoare annotation was computed. [2023-11-12 02:13:15,452 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 440) no Hoare annotation was computed. [2023-11-12 02:13:15,452 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 707 730) no Hoare annotation was computed. [2023-11-12 02:13:15,452 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 419 443) no Hoare annotation was computed. [2023-11-12 02:13:15,452 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 835 843) no Hoare annotation was computed. [2023-11-12 02:13:15,452 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 449) no Hoare annotation was computed. [2023-11-12 02:13:15,452 INFO L899 garLoopResultBuilder]: For program point L577(line 577) no Hoare annotation was computed. [2023-11-12 02:13:15,453 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 566 595) no Hoare annotation was computed. [2023-11-12 02:13:15,453 INFO L902 garLoopResultBuilder]: At program point L576-2(lines 576 590) the Hoare annotation is: true [2023-11-12 02:13:15,453 INFO L902 garLoopResultBuilder]: At program point L572(line 572) the Hoare annotation is: true [2023-11-12 02:13:15,453 INFO L899 garLoopResultBuilder]: For program point L572-1(line 572) no Hoare annotation was computed. [2023-11-12 02:13:15,453 INFO L899 garLoopResultBuilder]: For program point L591(lines 566 595) no Hoare annotation was computed. [2023-11-12 02:13:15,453 INFO L899 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2023-11-12 02:13:15,453 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 566 595) the Hoare annotation is: true [2023-11-12 02:13:15,453 INFO L899 garLoopResultBuilder]: For program point L580(lines 580 584) no Hoare annotation was computed. [2023-11-12 02:13:15,453 INFO L902 garLoopResultBuilder]: At program point L580-1(lines 580 584) the Hoare annotation is: true [2023-11-12 02:13:15,453 INFO L899 garLoopResultBuilder]: For program point startSystem_returnLabel#1(lines 918 925) no Hoare annotation was computed. [2023-11-12 02:13:15,454 INFO L895 garLoopResultBuilder]: At program point L985(lines 936 986) the Hoare annotation is: false [2023-11-12 02:13:15,454 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 629 638) no Hoare annotation was computed. [2023-11-12 02:13:15,454 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 677 683) no Hoare annotation was computed. [2023-11-12 02:13:15,454 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 642 664) no Hoare annotation was computed. [2023-11-12 02:13:15,454 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 02:13:15,454 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 963) no Hoare annotation was computed. [2023-11-12 02:13:15,454 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 02:13:15,454 INFO L899 garLoopResultBuilder]: For program point L957-1(lines 957 963) no Hoare annotation was computed. [2023-11-12 02:13:15,454 INFO L895 garLoopResultBuilder]: At program point L982(lines 937 984) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2023-11-12 02:13:15,454 INFO L895 garLoopResultBuilder]: At program point L949(line 949) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2023-11-12 02:13:15,455 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 659) no Hoare annotation was computed. [2023-11-12 02:13:15,455 INFO L899 garLoopResultBuilder]: For program point L652-2(lines 652 659) no Hoare annotation was computed. [2023-11-12 02:13:15,455 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 621 627) no Hoare annotation was computed. [2023-11-12 02:13:15,455 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 02:13:15,455 INFO L899 garLoopResultBuilder]: For program point L975(lines 975 979) no Hoare annotation was computed. [2023-11-12 02:13:15,455 INFO L895 garLoopResultBuilder]: At program point L975-2(lines 967 980) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2023-11-12 02:13:15,455 INFO L899 garLoopResultBuilder]: For program point L938(lines 937 984) no Hoare annotation was computed. [2023-11-12 02:13:15,455 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 02:13:15,455 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 684 690) no Hoare annotation was computed. [2023-11-12 02:13:15,455 INFO L899 garLoopResultBuilder]: For program point L967(lines 967 980) no Hoare annotation was computed. [2023-11-12 02:13:15,456 INFO L895 garLoopResultBuilder]: At program point L959(line 959) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2023-11-12 02:13:15,456 INFO L899 garLoopResultBuilder]: For program point L988(lines 927 992) no Hoare annotation was computed. [2023-11-12 02:13:15,456 INFO L899 garLoopResultBuilder]: For program point L947(lines 947 953) no Hoare annotation was computed. [2023-11-12 02:13:15,456 INFO L899 garLoopResultBuilder]: For program point L947-1(lines 947 953) no Hoare annotation was computed. [2023-11-12 02:13:15,456 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 691 699) no Hoare annotation was computed. [2023-11-12 02:13:15,456 INFO L899 garLoopResultBuilder]: For program point L939(lines 939 943) no Hoare annotation was computed. [2023-11-12 02:13:15,456 INFO L895 garLoopResultBuilder]: At program point L758(line 758) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-11-12 02:13:15,456 INFO L899 garLoopResultBuilder]: For program point L758-1(lines 739 763) no Hoare annotation was computed. [2023-11-12 02:13:15,456 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 739 763) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-11-12 02:13:15,456 INFO L899 garLoopResultBuilder]: For program point L806(lines 806 812) no Hoare annotation was computed. [2023-11-12 02:13:15,457 INFO L899 garLoopResultBuilder]: For program point L806-2(lines 799 815) no Hoare annotation was computed. [2023-11-12 02:13:15,457 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 540 553) no Hoare annotation was computed. [2023-11-12 02:13:15,458 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 550) no Hoare annotation was computed. [2023-11-12 02:13:15,458 INFO L899 garLoopResultBuilder]: For program point isHighWaterLevel_returnLabel#1(lines 880 898) no Hoare annotation was computed. [2023-11-12 02:13:15,458 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 739 763) no Hoare annotation was computed. [2023-11-12 02:13:15,459 INFO L899 garLoopResultBuilder]: For program point L889(lines 889 893) no Hoare annotation was computed. [2023-11-12 02:13:15,459 INFO L899 garLoopResultBuilder]: For program point L889-2(lines 889 893) no Hoare annotation was computed. [2023-11-12 02:13:15,459 INFO L895 garLoopResultBuilder]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0))) (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (and .cse0 .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1)))) [2023-11-12 02:13:15,459 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCritical_returnLabel#1(lines 499 507) no Hoare annotation was computed. [2023-11-12 02:13:15,459 INFO L899 garLoopResultBuilder]: For program point L747(lines 747 755) no Hoare annotation was computed. [2023-11-12 02:13:15,459 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarm_returnLabel#1(lines 824 834) no Hoare annotation was computed. [2023-11-12 02:13:15,460 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 760) no Hoare annotation was computed. [2023-11-12 02:13:15,460 INFO L899 garLoopResultBuilder]: For program point activatePump__wrappee__lowWaterSensor_returnLabel#1(lines 790 797) no Hoare annotation was computed. [2023-11-12 02:13:15,460 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 475 486) no Hoare annotation was computed. [2023-11-12 02:13:15,460 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 475 486) no Hoare annotation was computed. [2023-11-12 02:13:15,461 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 475 486) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1) (or (< |old(~waterLevel~0)| 1) (not (= ~pumpRunning~0 0)) .cse0 .cse1))) [2023-11-12 02:13:15,463 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:13:15,465 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:13:15,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:13:15 BoogieIcfgContainer [2023-11-12 02:13:15,478 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:13:15,478 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:13:15,478 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:13:15,478 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:13:15,479 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:13:07" (3/4) ... [2023-11-12 02:13:15,481 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 02:13:15,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-12 02:13:15,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-12 02:13:15,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-12 02:13:15,485 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-12 02:13:15,486 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2023-11-12 02:13:15,486 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-12 02:13:15,493 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-12 02:13:15,494 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-12 02:13:15,495 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-12 02:13:15,495 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:13:15,496 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 02:13:15,614 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/witness.graphml [2023-11-12 02:13:15,615 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/witness.yml [2023-11-12 02:13:15,615 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:13:15,616 INFO L158 Benchmark]: Toolchain (without parser) took 9733.88ms. Allocated memory was 148.9MB in the beginning and 237.0MB in the end (delta: 88.1MB). Free memory was 102.6MB in the beginning and 180.7MB in the end (delta: -78.1MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2023-11-12 02:13:15,616 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 148.9MB. Free memory was 121.8MB in the beginning and 121.6MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:13:15,616 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.37ms. Allocated memory is still 148.9MB. Free memory was 102.6MB in the beginning and 83.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-12 02:13:15,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.93ms. Allocated memory is still 148.9MB. Free memory was 83.2MB in the beginning and 80.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:13:15,617 INFO L158 Benchmark]: Boogie Preprocessor took 31.68ms. Allocated memory is still 148.9MB. Free memory was 80.6MB in the beginning and 79.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:13:15,617 INFO L158 Benchmark]: RCFGBuilder took 605.19ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 79.0MB in the beginning and 161.9MB in the end (delta: -82.9MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2023-11-12 02:13:15,618 INFO L158 Benchmark]: TraceAbstraction took 8315.19ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 160.9MB in the beginning and 188.1MB in the end (delta: -27.2MB). Peak memory consumption was 133.2MB. Max. memory is 16.1GB. [2023-11-12 02:13:15,618 INFO L158 Benchmark]: Witness Printer took 136.77ms. Allocated memory is still 237.0MB. Free memory was 188.1MB in the beginning and 180.7MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-12 02:13:15,620 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 148.9MB. Free memory was 121.8MB in the beginning and 121.6MB in the end (delta: 241.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.37ms. Allocated memory is still 148.9MB. Free memory was 102.6MB in the beginning and 83.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.93ms. Allocated memory is still 148.9MB. Free memory was 83.2MB in the beginning and 80.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.68ms. Allocated memory is still 148.9MB. Free memory was 80.6MB in the beginning and 79.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 605.19ms. Allocated memory was 148.9MB in the beginning and 197.1MB in the end (delta: 48.2MB). Free memory was 79.0MB in the beginning and 161.9MB in the end (delta: -82.9MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * TraceAbstraction took 8315.19ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 160.9MB in the beginning and 188.1MB in the end (delta: -27.2MB). Peak memory consumption was 133.2MB. Max. memory is 16.1GB. * Witness Printer took 136.77ms. Allocated memory is still 237.0MB. Free memory was 188.1MB in the beginning and 180.7MB in the end (delta: 7.4MB). Peak memory consumption was 8.4MB. 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [415] - GenericResultAtLocation [Line: 444]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [444] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [453] - GenericResultAtLocation [Line: 563]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [563] - GenericResultAtLocation [Line: 665]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [665] - GenericResultAtLocation [Line: 700]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [700] - GenericResultAtLocation [Line: 926]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [926] * 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: 449]: 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, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.2s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1668 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1649 mSDsluCounter, 3515 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2531 mSDsCounter, 280 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1685 IncrementalHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 280 mSolverCounterUnsat, 984 mSDtfsCounter, 1685 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 493 GetRequests, 366 SyntacticMatches, 9 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=570occurred in iteration=11, InterpolantAutomatonStates: 118, 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, 12 MinimizatonAttempts, 241 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 454 PreInvPairs, 481 NumberOfFragments, 277 HoareAnnotationTreeSize, 454 FomulaSimplifications, 1664 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 18 FomulaSimplificationsInter, 1514 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 835 NumberOfCodeBlocks, 835 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 902 ConstructedInterpolants, 0 QuantifiedInterpolants, 1733 SizeOfPredicates, 8 NumberOfNonLiveVariables, 691 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 264/294 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: 937]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 936]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-11-12 02:13:15,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf8f87e-30fc-47fb-8ec0-413e451663a6/bin/uautomizer-verify-uTZkv6EMXl/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