./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 586e2c87093d9cb3f870b8341d8eab6b70b165e3f162b5ed0d4d08ed0a9ba515 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:04:13,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:04:13,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-19 08:04:13,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:04:13,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:04:13,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:04:13,432 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:04:13,433 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:04:13,434 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:04:13,435 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:04:13,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:04:13,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:04:13,453 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:04:13,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:04:13,454 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:04:13,455 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:04:13,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:04:13,456 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:04:13,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:04:13,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:04:13,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:04:13,458 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:04:13,459 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:04:13,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:04:13,460 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:04:13,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:04:13,461 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:04:13,461 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:04:13,462 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:13,462 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:04:13,463 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:04:13,463 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:04:13,464 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:04:13,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:04:13,465 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:04:13,465 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:04:13,465 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:04:13,465 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:04:13,466 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:04:13,466 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_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 586e2c87093d9cb3f870b8341d8eab6b70b165e3f162b5ed0d4d08ed0a9ba515 [2023-11-19 08:04:13,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:04:13,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:04:13,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:04:13,802 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:04:13,803 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:04:13,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c [2023-11-19 08:04:16,932 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:04:17,258 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:04:17,259 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c [2023-11-19 08:04:17,274 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/data/561e50409/f71ca2c3cee748b0aba3c2e8cf029995/FLAGae4f4054b [2023-11-19 08:04:17,291 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/data/561e50409/f71ca2c3cee748b0aba3c2e8cf029995 [2023-11-19 08:04:17,294 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:04:17,295 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:04:17,297 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:17,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:04:17,319 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:04:17,320 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:17,321 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef3d48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17, skipping insertion in model container [2023-11-19 08:04:17,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:17,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:04:17,618 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_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c[1605,1618] [2023-11-19 08:04:17,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:17,776 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:04:17,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-11-19 08:04:17,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] [2023-11-19 08:04:17,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [127] [2023-11-19 08:04:17,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [306] [2023-11-19 08:04:17,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [344] [2023-11-19 08:04:17,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] [2023-11-19 08:04:17,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] [2023-11-19 08:04:17,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [826] [2023-11-19 08:04:17,812 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_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/sv-benchmarks/c/product-lines/minepump_spec4_product25.cil.c[1605,1618] [2023-11-19 08:04:17,900 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:04:17,940 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:04:17,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17 WrapperNode [2023-11-19 08:04:17,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:04:17,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:17,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:04:17,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:04:17,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:17,984 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:18,020 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 23, calls inlined = 17, statements flattened = 166 [2023-11-19 08:04:18,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:04:18,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:04:18,021 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:04:18,021 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:04:18,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:18,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:18,051 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:18,052 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:18,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:18,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:18,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:18,067 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:18,072 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:04:18,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:04:18,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:04:18,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:04:18,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (1/1) ... [2023-11-19 08:04:18,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:04:18,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:18,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:04:18,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:04:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:04:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-11-19 08:04:18,205 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-11-19 08:04:18,205 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-11-19 08:04:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-11-19 08:04:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-11-19 08:04:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-11-19 08:04:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-11-19 08:04:18,206 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-11-19 08:04:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:04:18,206 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-11-19 08:04:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-11-19 08:04:18,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:04:18,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:04:18,291 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:04:18,294 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:04:18,559 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:04:18,568 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:04:18,568 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 08:04:18,572 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:18 BoogieIcfgContainer [2023-11-19 08:04:18,572 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:04:18,575 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:04:18,575 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:04:18,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:04:18,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:04:17" (1/3) ... [2023-11-19 08:04:18,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93f08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:18, skipping insertion in model container [2023-11-19 08:04:18,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:17" (2/3) ... [2023-11-19 08:04:18,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@93f08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:04:18, skipping insertion in model container [2023-11-19 08:04:18,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:18" (3/3) ... [2023-11-19 08:04:18,593 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product25.cil.c [2023-11-19 08:04:18,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:04:18,614 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 08:04:18,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:04:18,695 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;@5c935e39, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:04:18,695 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 08:04:18,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 60 states have internal predecessors, (76), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-19 08:04:18,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 08:04:18,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:18,713 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:18,714 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:18,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:18,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1303461530, now seen corresponding path program 1 times [2023-11-19 08:04:18,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:18,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740773127] [2023-11-19 08:04:18,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:18,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:18,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:19,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:19,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740773127] [2023-11-19 08:04:19,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740773127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:19,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:19,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:19,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483381719] [2023-11-19 08:04:19,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:19,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:04:19,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:19,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:04:19,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:04:19,083 INFO L87 Difference]: Start difference. First operand has 69 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 60 states have internal predecessors, (76), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) 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) [2023-11-19 08:04:19,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:19,126 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2023-11-19 08:04:19,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:04:19,129 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 [2023-11-19 08:04:19,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:19,139 INFO L225 Difference]: With dead ends: 130 [2023-11-19 08:04:19,140 INFO L226 Difference]: Without dead ends: 60 [2023-11-19 08:04:19,145 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 [2023-11-19 08:04:19,150 INFO L413 NwaCegarLoop]: 86 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, 86 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:19,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:19,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-11-19 08:04:19,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-11-19 08:04:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 52 states have internal predecessors, (62), 8 states have call successors, (8), 5 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-19 08:04:19,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 77 transitions. [2023-11-19 08:04:19,212 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 77 transitions. Word has length 19 [2023-11-19 08:04:19,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:19,214 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 77 transitions. [2023-11-19 08:04:19,214 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) [2023-11-19 08:04:19,215 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2023-11-19 08:04:19,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 08:04:19,219 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:19,219 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] [2023-11-19 08:04:19,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:04:19,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:19,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:19,222 INFO L85 PathProgramCache]: Analyzing trace with hash 626328786, now seen corresponding path program 1 times [2023-11-19 08:04:19,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:19,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084095429] [2023-11-19 08:04:19,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:19,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:19,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:19,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:19,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:19,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084095429] [2023-11-19 08:04:19,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084095429] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:19,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:19,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:19,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940226744] [2023-11-19 08:04:19,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:19,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:19,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:19,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:19,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:19,376 INFO L87 Difference]: Start difference. First operand 60 states and 77 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) [2023-11-19 08:04:19,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:19,403 INFO L93 Difference]: Finished difference Result 86 states and 110 transitions. [2023-11-19 08:04:19,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:19,405 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 [2023-11-19 08:04:19,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:19,408 INFO L225 Difference]: With dead ends: 86 [2023-11-19 08:04:19,409 INFO L226 Difference]: Without dead ends: 51 [2023-11-19 08:04:19,414 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 [2023-11-19 08:04:19,417 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 12 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:19,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 112 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:19,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-19 08:04:19,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-19 08:04:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.3414634146341464) internal successors, (55), 46 states have internal predecessors, (55), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:19,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2023-11-19 08:04:19,444 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 20 [2023-11-19 08:04:19,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:19,445 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2023-11-19 08:04:19,445 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) [2023-11-19 08:04:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2023-11-19 08:04:19,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 08:04:19,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:19,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:19,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:04:19,450 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:19,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:19,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1992386770, now seen corresponding path program 1 times [2023-11-19 08:04:19,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:19,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107070536] [2023-11-19 08:04:19,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:19,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:19,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:19,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:19,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:19,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107070536] [2023-11-19 08:04:19,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107070536] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:19,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:19,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:04:19,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380180284] [2023-11-19 08:04:19,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:19,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:04:19,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:19,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:04:19,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:04:19,655 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2023-11-19 08:04:19,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:19,801 INFO L93 Difference]: Finished difference Result 95 states and 124 transitions. [2023-11-19 08:04:19,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 08:04:19,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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 24 [2023-11-19 08:04:19,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:19,805 INFO L225 Difference]: With dead ends: 95 [2023-11-19 08:04:19,806 INFO L226 Difference]: Without dead ends: 51 [2023-11-19 08:04:19,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:04:19,811 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 89 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:19,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 128 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:19,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2023-11-19 08:04:19,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2023-11-19 08:04:19,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 46 states have internal predecessors, (54), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-19 08:04:19,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 64 transitions. [2023-11-19 08:04:19,825 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 64 transitions. Word has length 24 [2023-11-19 08:04:19,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:19,826 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 64 transitions. [2023-11-19 08:04:19,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2023-11-19 08:04:19,827 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 64 transitions. [2023-11-19 08:04:19,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 08:04:19,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:19,828 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] [2023-11-19 08:04:19,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:04:19,829 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:19,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:19,830 INFO L85 PathProgramCache]: Analyzing trace with hash 19457872, now seen corresponding path program 1 times [2023-11-19 08:04:19,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:19,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331792656] [2023-11-19 08:04:19,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:19,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 08:04:20,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:20,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:20,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331792656] [2023-11-19 08:04:20,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331792656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:20,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:20,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-19 08:04:20,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145321296] [2023-11-19 08:04:20,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:20,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 08:04:20,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:20,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 08:04:20,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-19 08:04:20,020 INFO L87 Difference]: Start difference. First operand 51 states and 64 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:20,189 INFO L93 Difference]: Finished difference Result 173 states and 233 transitions. [2023-11-19 08:04:20,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 08:04:20,190 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-19 08:04:20,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:20,192 INFO L225 Difference]: With dead ends: 173 [2023-11-19 08:04:20,192 INFO L226 Difference]: Without dead ends: 129 [2023-11-19 08:04:20,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2023-11-19 08:04:20,194 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 121 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:20,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 377 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 08:04:20,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-11-19 08:04:20,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 126. [2023-11-19 08:04:20,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 100 states have (on average 1.32) internal successors, (132), 112 states have internal predecessors, (132), 14 states have call successors, (14), 11 states have call predecessors, (14), 11 states have return successors, (17), 11 states have call predecessors, (17), 14 states have call successors, (17) [2023-11-19 08:04:20,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 163 transitions. [2023-11-19 08:04:20,217 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 163 transitions. Word has length 29 [2023-11-19 08:04:20,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:20,218 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 163 transitions. [2023-11-19 08:04:20,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:20,218 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 163 transitions. [2023-11-19 08:04:20,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 08:04:20,220 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:20,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:20,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:04:20,221 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:20,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:20,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1673340907, now seen corresponding path program 1 times [2023-11-19 08:04:20,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:20,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027057834] [2023-11-19 08:04:20,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:20,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-19 08:04:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:20,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:20,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027057834] [2023-11-19 08:04:20,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027057834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:20,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:20,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:04:20,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894838507] [2023-11-19 08:04:20,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:20,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:20,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:20,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:20,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:20,301 INFO L87 Difference]: Start difference. First operand 126 states and 163 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:20,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:20,326 INFO L93 Difference]: Finished difference Result 219 states and 285 transitions. [2023-11-19 08:04:20,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:20,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2023-11-19 08:04:20,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:20,328 INFO L225 Difference]: With dead ends: 219 [2023-11-19 08:04:20,329 INFO L226 Difference]: Without dead ends: 100 [2023-11-19 08:04:20,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:20,331 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:20,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 46 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 08:04:20,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-19 08:04:20,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2023-11-19 08:04:20,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 77 states have (on average 1.2337662337662338) internal successors, (95), 83 states have internal predecessors, (95), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (12), 11 states have call predecessors, (12), 11 states have call successors, (12) [2023-11-19 08:04:20,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 118 transitions. [2023-11-19 08:04:20,349 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 118 transitions. Word has length 31 [2023-11-19 08:04:20,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:20,350 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 118 transitions. [2023-11-19 08:04:20,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 08:04:20,350 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 118 transitions. [2023-11-19 08:04:20,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-19 08:04:20,353 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 08:04:20,353 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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] [2023-11-19 08:04:20,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:04:20,354 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 08:04:20,354 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:20,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1699050591, now seen corresponding path program 1 times [2023-11-19 08:04:20,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:20,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10422370] [2023-11-19 08:04:20,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:20,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-19 08:04:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-19 08:04:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 08:04:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-19 08:04:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-11-19 08:04:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,577 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 08:04:20,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:20,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10422370] [2023-11-19 08:04:20,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10422370] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 08:04:20,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86249698] [2023-11-19 08:04:20,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:20,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:20,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:04:20,581 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 08:04:20,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 08:04:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:20,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 08:04:20,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 08:04:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 08:04:20,935 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 08:04:21,327 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 08:04:21,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86249698] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 08:04:21,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 08:04:21,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 15 [2023-11-19 08:04:21,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231614734] [2023-11-19 08:04:21,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 08:04:21,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-19 08:04:21,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:21,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-19 08:04:21,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2023-11-19 08:04:21,332 INFO L87 Difference]: Start difference. First operand 100 states and 118 transitions. Second operand has 15 states, 15 states have (on average 6.0) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-19 08:04:21,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 08:04:21,608 INFO L93 Difference]: Finished difference Result 133 states and 157 transitions. [2023-11-19 08:04:21,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 08:04:21,609 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) Word has length 59 [2023-11-19 08:04:21,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 08:04:21,610 INFO L225 Difference]: With dead ends: 133 [2023-11-19 08:04:21,610 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 08:04:21,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 117 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2023-11-19 08:04:21,612 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 98 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 08:04:21,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 249 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 08:04:21,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 08:04:21,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 08:04:21,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:04:21,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 08:04:21,615 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2023-11-19 08:04:21,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 08:04:21,615 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 08:04:21,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 12 states have internal predecessors, (90), 6 states have call successors, (15), 8 states have call predecessors, (15), 8 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2023-11-19 08:04:21,616 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 08:04:21,616 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 08:04:21,619 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 08:04:21,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 08:04:21,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 08:04:21,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 08:04:22,239 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 164 170) no Hoare annotation was computed. [2023-11-19 08:04:22,239 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 164 170) the Hoare annotation is: true [2023-11-19 08:04:22,239 INFO L899 garLoopResultBuilder]: For program point L402-1(lines 398 409) no Hoare annotation was computed. [2023-11-19 08:04:22,239 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 398 409) the Hoare annotation is: true [2023-11-19 08:04:22,239 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 398 409) no Hoare annotation was computed. [2023-11-19 08:04:22,240 INFO L899 garLoopResultBuilder]: For program point L834-1(line 834) no Hoare annotation was computed. [2023-11-19 08:04:22,240 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 828 857) no Hoare annotation was computed. [2023-11-19 08:04:22,240 INFO L899 garLoopResultBuilder]: For program point L853(lines 828 857) no Hoare annotation was computed. [2023-11-19 08:04:22,240 INFO L899 garLoopResultBuilder]: For program point L849(line 849) no Hoare annotation was computed. [2023-11-19 08:04:22,240 INFO L899 garLoopResultBuilder]: For program point L842(lines 842 846) no Hoare annotation was computed. [2023-11-19 08:04:22,240 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 828 857) the Hoare annotation is: true [2023-11-19 08:04:22,240 INFO L902 garLoopResultBuilder]: At program point L842-1(lines 842 846) the Hoare annotation is: true [2023-11-19 08:04:22,241 INFO L899 garLoopResultBuilder]: For program point L839(line 839) no Hoare annotation was computed. [2023-11-19 08:04:22,241 INFO L902 garLoopResultBuilder]: At program point L838-2(lines 838 852) the Hoare annotation is: true [2023-11-19 08:04:22,241 INFO L902 garLoopResultBuilder]: At program point L834(line 834) the Hoare annotation is: true [2023-11-19 08:04:22,241 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2023-11-19 08:04:22,241 INFO L899 garLoopResultBuilder]: For program point L378-2(lines 374 385) no Hoare annotation was computed. [2023-11-19 08:04:22,241 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 151 157) no Hoare annotation was computed. [2023-11-19 08:04:22,241 INFO L899 garLoopResultBuilder]: For program point L180(lines 180 188) no Hoare annotation was computed. [2023-11-19 08:04:22,241 INFO L899 garLoopResultBuilder]: For program point L176(lines 176 193) no Hoare annotation was computed. [2023-11-19 08:04:22,242 INFO L899 garLoopResultBuilder]: For program point isLowWaterSensorDry_returnLabel#1(lines 451 459) no Hoare annotation was computed. [2023-11-19 08:04:22,242 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 300) no Hoare annotation was computed. [2023-11-19 08:04:22,242 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 140 163) no Hoare annotation was computed. [2023-11-19 08:04:22,242 INFO L899 garLoopResultBuilder]: For program point L296-2(lines 296 300) no Hoare annotation was computed. [2023-11-19 08:04:22,242 INFO L899 garLoopResultBuilder]: For program point L358(lines 358 364) no Hoare annotation was computed. [2023-11-19 08:04:22,242 INFO L899 garLoopResultBuilder]: For program point L354(lines 354 367) no Hoare annotation was computed. [2023-11-19 08:04:22,242 INFO L899 garLoopResultBuilder]: For program point L354-1(lines 346 370) no Hoare annotation was computed. [2023-11-19 08:04:22,242 INFO L899 garLoopResultBuilder]: For program point getWaterLevel_returnLabel#1(lines 442 450) no Hoare annotation was computed. [2023-11-19 08:04:22,243 INFO L899 garLoopResultBuilder]: For program point L144-1(lines 143 162) no Hoare annotation was computed. [2023-11-19 08:04:22,243 INFO L895 garLoopResultBuilder]: At program point L186(line 186) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse0 .cse1 (< |old(~waterLevel~0)| 2)))) [2023-11-19 08:04:22,243 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-11-19 08:04:22,243 INFO L899 garLoopResultBuilder]: For program point __automaton_fail_returnLabel#1(lines 50 57) no Hoare annotation was computed. [2023-11-19 08:04:22,244 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 140 163) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse0 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (< |old(~waterLevel~0)| 2)))) [2023-11-19 08:04:22,244 INFO L899 garLoopResultBuilder]: For program point deactivatePump_returnLabel#1(lines 223 230) no Hoare annotation was computed. [2023-11-19 08:04:22,244 INFO L895 garLoopResultBuilder]: At program point L191(line 191) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse0 (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (< |old(~waterLevel~0)| 2)))) [2023-11-19 08:04:22,244 INFO L899 garLoopResultBuilder]: For program point isLowWaterLevel_returnLabel#1(lines 287 305) no Hoare annotation was computed. [2023-11-19 08:04:22,244 INFO L899 garLoopResultBuilder]: For program point L191-1(lines 172 196) no Hoare annotation was computed. [2023-11-19 08:04:22,244 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 140 163) no Hoare annotation was computed. [2023-11-19 08:04:22,245 INFO L899 garLoopResultBuilder]: For program point isPumpRunning_returnLabel#1(lines 242 250) no Hoare annotation was computed. [2023-11-19 08:04:22,245 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-11-19 08:04:22,245 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2023-11-19 08:04:22,245 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 93 99) no Hoare annotation was computed. [2023-11-19 08:04:22,245 INFO L899 garLoopResultBuilder]: For program point L122(lines 63 126) no Hoare annotation was computed. [2023-11-19 08:04:22,252 INFO L895 garLoopResultBuilder]: At program point L85(line 85) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)))) [2023-11-19 08:04:22,252 INFO L899 garLoopResultBuilder]: For program point runTest_returnLabel#1(lines 889 898) no Hoare annotation was computed. [2023-11-19 08:04:22,253 INFO L899 garLoopResultBuilder]: For program point select_features_returnLabel#1(lines 321 327) no Hoare annotation was computed. [2023-11-19 08:04:22,253 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 899 921) no Hoare annotation was computed. [2023-11-19 08:04:22,253 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-19 08:04:22,253 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-19 08:04:22,254 INFO L895 garLoopResultBuilder]: At program point L119(lines 72 120) the Hoare annotation is: false [2023-11-19 08:04:22,254 INFO L899 garLoopResultBuilder]: For program point L74(lines 73 118) no Hoare annotation was computed. [2023-11-19 08:04:22,254 INFO L899 garLoopResultBuilder]: For program point setup_returnLabel#1(lines 882 888) no Hoare annotation was computed. [2023-11-19 08:04:22,255 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 114) no Hoare annotation was computed. [2023-11-19 08:04:22,255 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 08:04:22,255 INFO L895 garLoopResultBuilder]: At program point L95(line 95) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)))) [2023-11-19 08:04:22,255 INFO L895 garLoopResultBuilder]: At program point L116(lines 73 118) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)))) [2023-11-19 08:04:22,256 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2023-11-19 08:04:22,256 INFO L899 garLoopResultBuilder]: For program point L83-1(lines 83 89) no Hoare annotation was computed. [2023-11-19 08:04:22,256 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 916) no Hoare annotation was computed. [2023-11-19 08:04:22,256 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 79) no Hoare annotation was computed. [2023-11-19 08:04:22,256 INFO L899 garLoopResultBuilder]: For program point L909-2(lines 909 916) no Hoare annotation was computed. [2023-11-19 08:04:22,256 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 08:04:22,257 INFO L899 garLoopResultBuilder]: For program point select_helpers_returnLabel#1(lines 328 334) no Hoare annotation was computed. [2023-11-19 08:04:22,258 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 113) no Hoare annotation was computed. [2023-11-19 08:04:22,258 INFO L899 garLoopResultBuilder]: For program point valid_product_returnLabel#1(lines 335 343) no Hoare annotation was computed. [2023-11-19 08:04:22,259 INFO L895 garLoopResultBuilder]: At program point L109-2(lines 103 114) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)))) [2023-11-19 08:04:22,259 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 386 397) no Hoare annotation was computed. [2023-11-19 08:04:22,259 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 386 397) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= ~waterLevel~0 1)) (or .cse0 .cse1 (< |old(~waterLevel~0)| 2) (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-11-19 08:04:22,259 INFO L899 garLoopResultBuilder]: For program point L390-1(lines 386 397) no Hoare annotation was computed. [2023-11-19 08:04:22,262 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-19 08:04:22,267 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:04:22,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:04:22 BoogieIcfgContainer [2023-11-19 08:04:22,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:04:22,291 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:04:22,292 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:04:22,292 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:04:22,292 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:18" (3/4) ... [2023-11-19 08:04:22,294 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:04:22,299 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2023-11-19 08:04:22,299 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2023-11-19 08:04:22,300 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2023-11-19 08:04:22,300 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2023-11-19 08:04:22,300 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2023-11-19 08:04:22,308 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-19 08:04:22,309 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 08:04:22,309 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 08:04:22,310 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:04:22,310 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:04:22,339 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == 0) && (\result == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (tmp == 1)) && (splverifierCounter == 0)) || ((((((pumpRunning == 0) && (\result == 1)) && (1 == systemActive)) && (tmp == 1)) && (splverifierCounter == 0)) && (waterLevel == 1))) [2023-11-19 08:04:22,368 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == 0) && (\result == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (tmp == 1)) && (splverifierCounter == 0)) || ((((((pumpRunning == 0) && (\result == 1)) && (1 == systemActive)) && (tmp == 1)) && (splverifierCounter == 0)) && (waterLevel == 1))) [2023-11-19 08:04:22,420 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:04:22,420 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:04:22,421 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:04:22,422 INFO L158 Benchmark]: Toolchain (without parser) took 5126.15ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 146.9MB in the beginning and 111.5MB in the end (delta: 35.4MB). Peak memory consumption was 71.7MB. Max. memory is 16.1GB. [2023-11-19 08:04:22,422 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:04:22,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 643.77ms. Allocated memory is still 178.3MB. Free memory was 146.7MB in the beginning and 130.2MB in the end (delta: 16.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2023-11-19 08:04:22,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.19ms. Allocated memory is still 178.3MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:22,423 INFO L158 Benchmark]: Boogie Preprocessor took 51.26ms. Allocated memory is still 178.3MB. Free memory was 128.1MB in the beginning and 127.3MB in the end (delta: 878.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:04:22,424 INFO L158 Benchmark]: RCFGBuilder took 495.87ms. Allocated memory is still 178.3MB. Free memory was 127.3MB in the beginning and 134.6MB in the end (delta: -7.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:04:22,424 INFO L158 Benchmark]: TraceAbstraction took 3716.25ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 133.4MB in the beginning and 118.9MB in the end (delta: 14.5MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2023-11-19 08:04:22,425 INFO L158 Benchmark]: Witness Printer took 129.39ms. Allocated memory is still 213.9MB. Free memory was 118.9MB in the beginning and 111.5MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 08:04:22,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 643.77ms. Allocated memory is still 178.3MB. Free memory was 146.7MB in the beginning and 130.2MB in the end (delta: 16.4MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.19ms. Allocated memory is still 178.3MB. Free memory was 130.2MB in the beginning and 128.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.26ms. Allocated memory is still 178.3MB. Free memory was 128.1MB in the beginning and 127.3MB in the end (delta: 878.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 495.87ms. Allocated memory is still 178.3MB. Free memory was 127.3MB in the beginning and 134.6MB in the end (delta: -7.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 3716.25ms. Allocated memory was 178.3MB in the beginning and 213.9MB in the end (delta: 35.7MB). Free memory was 133.4MB in the beginning and 118.9MB in the end (delta: 14.5MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. * Witness Printer took 129.39ms. Allocated memory is still 213.9MB. Free memory was 118.9MB in the beginning and 111.5MB in the end (delta: 7.3MB). 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] - GenericResultAtLocation [Line: 127]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [127] - GenericResultAtLocation [Line: 306]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [306] - GenericResultAtLocation [Line: 344]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [344] - GenericResultAtLocation [Line: 371]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] - GenericResultAtLocation [Line: 460]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [460] - GenericResultAtLocation [Line: 826]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [826] * 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: 54]: 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 6 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 356 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 353 mSDsluCounter, 998 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 635 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 291 IncrementalHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 363 mSDtfsCounter, 291 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 172 GetRequests, 130 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=4, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 91 PreInvPairs, 101 NumberOfFragments, 301 HoareAnnotationTreeSize, 91 FomulaSimplifications, 83 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 188 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 292 ConstructedInterpolants, 0 QuantifiedInterpolants, 756 SizeOfPredicates, 0 NumberOfNonLiveVariables, 224 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 63/69 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: 838]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (\result == 1)) && (2 <= waterLevel)) && (1 == systemActive)) && (tmp == 1)) && (splverifierCounter == 0)) || ((((((pumpRunning == 0) && (\result == 1)) && (1 == systemActive)) && (tmp == 1)) && (splverifierCounter == 0)) && (waterLevel == 1))) RESULT: Ultimate proved your program to be correct! [2023-11-19 08:04:22,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5e03a0c-a809-41a2-bc1e-f4bb941d53fe/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE